Finish & Heat-Treatment Specifications
105 MIL, AMS, ASTM and ISO documents cited on finish and heat-treat drawings — what each one covers, its Type / Class or condition structure with thickness, hardness and tests, its status and successor, the finishes and heat treatments it governs, and the call-out to write. 9 US Government documents are free to download here.
US military and federal specifications
MIL-, DOD- and FED- documents from the Defense Logistics Agency. US Government works — free to download; most finish drawings in aerospace and defence cite them.
| Document | Covers | Status | Applies to | |
|---|---|---|---|---|
Anodic Coatings for Aluminum and Aluminum Alloys | Covers six types and two classes of electrolytically formed anodic coatings on aluminum and aluminum alloys for non-architectural applications. | Superseded → MIL-PRF-8625 | Anodizing Type II, Boric-Sulfuric Acid Anodizing Type IC, Chromic Acid Anodizing Type I +2 | Free PDF |
Coatings, Electroless Nickel, Requirements for | Legacy specification for electroless nickel-phosphorus coatings on metal and composite surfaces. | Cancelled → MIL-DTL-32119 and SAE AMS-C-26074; AMS 2404 is a commonly specified successor | — | Free PDF |
Coating, Inorganic, Black, for Ferrous Metals | Covers inorganic black conversion coatings on carbon steel, low-alloy steel, corrosion-resistant steel, wrought iron, and specified cast irons. | Active | Black Oxide | Free PDF |
Phosphate Coating, Heavy, Manganese or Zinc Base | Covers heavy manganese-phosphate and zinc-phosphate coatings applied to ferrous metals by immersion. | Active | Manganese Phosphate, Zinc Phosphate | Free PDF |
Chemical Conversion Coatings on Aluminum and Aluminum Alloys | Covers chemical conversion coatings formed by reaction of qualified materials with aluminum and aluminum-alloy surfaces. | Active | Chemical Conversion Coating | Free PDF |
Chemical Conversion Materials for Coating Aluminum and Aluminum Alloys | Covers qualified chemical conversion materials used to form coatings on aluminum and aluminum alloys. | Active | Chemical Conversion Coating | Free PDF |
Heat Treatment of Steel Raw Materials | Cancelled DoD process specification for the heat treatment of steel raw materials and parts — carbon, low-alloy, martensitic, precipitation-hardening and austenitic corrosion-resistant, and maraging steels — replaced by AMS-H-6875 and then by AMS 2759 with its slash sheets. | Superseded → AMS 2759 | Full Anneal, Normalize, Process Anneal +3 | Free (DLA) |
Lubricant, Solid Film, Heat Cured, Corrosion Inhibiting | Establishes performance and qualification requirements for a heat-cured, corrosion-inhibiting solid-film lubricant. | Active | — | Free PDF |
Identification Marking of U.S. Military Property | Provides criteria and data content for human-readable and machine-readable identification marking of U.S. military property. | Active | Dot Peen Marking, Electrochemical Etching, Laser Marking +3 | Free PDF |
SAE AMS aerospace material specifications
The commercial successors to many cancelled MIL specs, maintained by SAE International. Copyrighted; purchased from SAE.
| Document | Covers | Status | Applies to | |
|---|---|---|---|---|
Plating, Nickel, General Purpose | Covers engineering requirements for electrodeposition of general-purpose nickel and properties of the deposit. | Active | — | Purchase |
Plating, Electroless Nickel-Phosphorous | Covers requirements for electroless nickel-phosphorus deposited on various materials. | Active | Electroless Nickel Plating | Purchase |
Plating, Chromium, Hard Deposit | Covers electrodeposited hard chromium plate. | Active | Hard Chrome Plating | Purchase |
Shot Peening | Covers media, equipment, process control, intensity verification, coverage, and quality requirements for shot peening. | Active | — | Purchase |
Hard Anodic Coating on Aluminum and Aluminum Alloys | Establishes requirements for wear-resistant hard anodic coatings on aluminum and aluminum alloys. | Active | Hard Anodizing Type III, Hard Anodizing Type III With PTFE | Purchase |
Anodic Treatment of Aluminum Alloys, Sulfuric Acid Process, Undyed Coating | Establishes processing and performance requirements for sealed, undyed sulfuric-acid anodic coatings on aluminum alloys. | Active | Anodizing Type II | Purchase |
Anodic Treatment of Aluminum Alloys, Sulfuric Acid Process, Dyed Coatings | Establishes processing and performance requirements for dyed sulfuric-acid anodic coatings on aluminum alloys. | Active | Anodizing Type II | Purchase |
Chemical Film Treatment for Aluminum Alloys, General Purpose Coating | Establishes requirements for general-purpose chemical-film conversion coatings on aluminum alloys. | Active | — | Purchase |
Chemical Treatment for Aluminum Alloys, Low Electrical Resistance Coating | Establishes requirements for low-electrical-resistance chemical-film coatings on aluminum and aluminum alloys. | Active | — | Purchase |
Anodic Treatment, Titanium and Titanium Alloys, Solution pH 13 or Higher | Establishes engineering requirements and coating properties for alkaline anodic treatment of titanium and titanium alloys. | Active | Titanium Color Anodizing | Purchase |
Passivation of Corrosion Resistant Steels | Covers processes that remove free iron and other less-noble contaminants from corrosion-resistant steel surfaces. | Active | Citric Acid Passivation, Stainless Steel Passivation | Purchase |
Induction Hardening of Steel Parts | Induction hardening — localized austenitizing by electromagnetic induction followed by quenching and tempering — of carbon, alloy and martensitic stainless steel parts, including process qualification and control of hardened pattern, case depth and surface hardness. | Active | Induction Hardening | Purchase |
Pyrometry | Pyrometric requirements — temperature sensors, instrumentation, thermal-processing equipment, system accuracy tests and temperature uniformity surveys — for equipment used in the heat treatment of metals and other thermal processing. | Active | Anneal to O Temper (Aluminum), Carbonitride, Case Harden (Carburize) +10 | Purchase |
Heat Treatment of Steel Parts, General Requirements | General requirements for the heat treatment of carbon, low-alloy, corrosion-resistant, maraging and tool steel parts, applied together with the alloy-specific AMS 2759 slash sheets. | Active | Austemper, Carbonitride, Cryogenic Treatment +10 | Purchase |
Heat Treatment of Carbon and Low-Alloy Steel Parts, Minimum Tensile Strength Below 220 ksi (1517 MPa) | Heat treatment of carbon and low-alloy steel parts (1045, 4130, 4140, 4340, 8740 and similar) to minimum tensile strengths below 220 ksi (1517 MPa), including normalizing, annealing, hardening, tempering and stress relief. | Active | Full Anneal, High Temper, Low Temper +4 | Purchase |
Automated Gaseous Nitriding Controlled by Nitriding Potential | Gas nitriding of steel parts in which the furnace atmosphere is controlled automatically by nitriding potential (KN), with the compound layer and diffusion zone specified as process targets. | Active | Cryogenic Treatment, Gas Nitride, Martemper +1 | Purchase |
Stress Relief of Steel Parts | Stress relief of carbon, low-alloy, tool, martensitic, precipitation-hardening and austenitic corrosion-resistant steel parts after machining, forming, welding or straightening, without changing the prior heat-treated properties. | Active | Stress Relief | Purchase |
Automated Gaseous Nitrocarburizing Controlled by Potentials | Ferritic nitrocarburizing of steel parts in ammonia plus a carbon-bearing gas, with the nitriding potential (KN) and carburizing potential (KC) controlled automatically, including optional post-oxidation. | Active | Nitrocarburize (Ferritic) | Purchase |
Heat Treatment of Low-Alloy Steel Parts, Minimum Tensile Strength 220 ksi (1517 MPa) and Higher | Heat treatment of low-alloy steel parts (4340, 300M, D6AC, 4330V, Hy-Tuf and similar) to minimum tensile strengths of 220 ksi (1517 MPa) and higher. | Active | Martemper, Quench & Temper | Purchase |
Heat Treatment, Precipitation-Hardening Corrosion-Resistant and Maraging Steel Parts | Solution treating, transformation, precipitation hardening and annealing of precipitation-hardening corrosion-resistant steels (17-4PH, 15-5PH, PH13-8Mo, 17-7PH, PH15-7Mo, AM350/355, Custom 450/455, A-286) and of 18Ni maraging steel parts. | Active | Q+T H1025, Q+T H1075, Q+T H1150 +1 | Purchase |
Heat Treatment, Austenitic Corrosion-Resistant Steel Parts | Annealing, stabilization annealing and stress relief of austenitic corrosion-resistant steel parts such as 302, 304/304L, 316/316L, 321, 347, 309, 310 and the nitrogen-strengthened 21-6-9 / Nitronic grades. | Active | Solution Anneal | Purchase |
Heat Treatment, Martensitic Corrosion-Resistant Steel Parts | Annealing, hardening, tempering and sub-zero treatment of martensitic corrosion-resistant steel parts such as 410, 416, 420, 431, 440A/B/C, 418 (Greek Ascoloy) and 422. | Active | Cryogenic Treatment, Quench & Temper | Purchase |
Gas Nitriding and Heat Treatment of Low-Alloy Steel Parts | Gas nitriding of low-alloy steel parts (Nitralloy 135M, 4140, 4340, H11 and similar), including the prior hardening and tempering and the verification of case depth, surface hardness and white layer. | Active | Gas Nitride | Purchase |
Carburizing and Heat Treatment of Carburizing Grade Steel Parts | Carburizing (gas, vacuum/low-pressure or pack) and subsequent hardening, sub-zero treatment and tempering of carburizing-grade steel parts such as 9310, 8620, 4320, 3310 and Pyrowear 53. | Active | Case Harden (Carburize) | Purchase |
Ion Nitriding | Ion (plasma, glow-discharge) nitriding of steel parts — low-alloy, tool, martensitic and precipitation-hardening stainless and, with sputter activation, austenitic stainless — including pre-treatment, process control and verification of case depth, surface hardness and compound layer. | Active | Plasma (Ion) Nitride | Purchase |
Hydrogen Embrittlement Relief (Baking) of Steel Parts | Baking of steel parts to relieve hydrogen absorbed during electroplating, electroless plating, acid pickling, cathodic cleaning, chemical stripping and similar wet processes, keyed to the part's tensile strength or hardness. | Active | — | Purchase |
Heat Treatment of Parts in a Vacuum | Requirements for heat treating metal parts in vacuum furnaces — leak rate, operating pressure, partial-pressure backfill, gas quenching, cleanliness and surface condition — used together with the alloy-specific AMS heat-treatment specifications. | Active | High Temper, Low Temper, Medium Temper +1 | Purchase |
Heat Treatment of Wrought Aluminum Alloy Parts | Solution heat treatment, quenching, natural and artificial ageing, and annealing of wrought aluminum alloy parts (2000 series, 6000 and 7000 series alloys such as 2024, 6061, 7050 and 7075) by the part manufacturer. | Active | Age T6 (Aluminum), Age T651 (Aluminum), Age T73 (Aluminum) +1 | Purchase |
Heat Treatment of Aluminum Alloy Castings | Solution heat treatment, quenching, ageing and annealing of aluminum alloy castings (sand, permanent mold, investment and die castings such as A356.0, A357.0, C355.0, 319.0, 201.0 and 206.0) to the T5, T6, T7 and related tempers. | Active | — | Purchase |
Heat Treatment of Aluminum Alloy Raw Materials | Heat treatment of wrought aluminum alloy raw material — sheet, plate, extrusions, bar, rod, wire, tubing and forgings — by the producer or reheat treater to the tempers called out in the material specifications. | Active | Anneal to O Temper (Aluminum) | Purchase |
Heat Treatment of Wrought Nickel Alloy and Cobalt Alloy Parts | Solution treatment, stabilisation, precipitation (ageing), annealing and stress relief of wrought nickel-base and cobalt-base alloy parts such as Inconel 718, 625, X-750, Waspaloy, Hastelloy X, René 41, Haynes 25 (L-605) and 188. | Active | Age (Inconel 718), Solution Anneal | Purchase |
Heat Treatment of Titanium Alloy Parts | Stress relief, annealing, solution treatment and ageing of titanium and titanium alloy parts (commercially pure grades, Ti-6Al-4V, Ti-6Al-2Sn-4Zr-2Mo, Ti-6Al-6V-2Sn, Ti-10V-2Fe-3Al, Ti-15V-3Cr-3Al-3Sn and others) by the part manufacturer. | Active | Solution Treat + Age (Ti) | Purchase |
Steel, Corrosion-Resistant, Bars, Wire, Forgings, Tubing, and Rings, 16Cr - 4.0Ni - 0.30Cb - 4.0Cu, Solution Heat Treated, Precipitation Hardenable | Material specification for 17-4PH (UNS S17400) corrosion-resistant steel bars, wire, forgings, tubing and rings, supplied solution heat treated (Condition A) and precipitation hardenable by the user to the H900 through H1150M conditions. | Active | Q+T H1025, Q+T H1075, Q+T H1150 +1 | Purchase |
Nickel Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings, 52.5Ni - 19Cr - 3.0Mo - 5.1Cb - 0.90Ti - 0.50Al - 18Fe, Consumable Electrode or Vacuum Induction Melted, 1775 °F (968 °C) Solution Heat Treated, Precipitation-Hardenable | Material specification for Inconel 718 (UNS N07718) bars, forgings and rings, consumable-electrode or vacuum-induction melted, supplied solution heat treated at about 1775 °F (968 °C) and precipitation hardenable by the user. | Active | Age (Inconel 718) | Purchase |
Nickel Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings, 52.5Ni - 19Cr - 3.0Mo - 5.1Cb - 0.90Ti - 0.50Al - 18Fe, Consumable Electrode or Vacuum Induction Melted, 1775 °F (968 °C) Solution and Precipitation Heat Treated | Material specification for Inconel 718 (UNS N07718) bars, forgings and rings, consumable-electrode or vacuum-induction melted, solution heat treated at about 1775 °F (968 °C) and precipitation heat treated by the producer. | Active | Age (Inconel 718) | Purchase |
Magnesium Alloy, Processes for Pretreatment and Prevention of Corrosion on | Covers apparatus, materials, and processes for increasing corrosion resistance of magnesium alloys and preparing them for organic coating systems. | Active | Magnesium Chemical Conversion Coating | Purchase |
Nickel Plating (Electrodeposited) | Covers electrodeposited nickel plating on steel, copper alloys, zinc alloys, and other specified basis metals. | Active | — | Purchase |
Plating, Cadmium (Electrodeposited) | Covers electrodeposited cadmium plating, supplementary chromate or phosphate treatments, thickness, corrosion resistance, and hydrogen-embrittlement control. | Active | Cadmium Plating | Purchase |
Data Matrix Quality Requirements for Parts Marking | Defines aerospace quality and technical requirements for Data Matrix marking on metallic parts by dot peen, laser, and electrochemical etching. | Active | Dot Peen Marking, Laser Marking | Purchase |
Plating, Cadmium | Specifies electrodeposited cadmium plating on metal parts, including thickness classes and supplementary treatment. | Active | Cadmium Plating | Purchase |
Plating, Nickel, General Purpose | Specifies general-purpose electrodeposited nickel and deposit properties for aerospace metal parts. | Active | Electrolytic Nickel Plating | Purchase |
Magnesium Alloy, Processes for Pretreatment and Prevention of Corrosion on | Provides the magnesium-alloy pretreatment and corrosion-prevention requirements published by SAE as AMS-M-3171. | Active | Magnesium Chemical Conversion Coating | Purchase |
Methods of Measuring Case Depth | Recommended practice defining total and effective case depth for carburized, carbonitrided, cyanided, nitrided, induction- and flame-hardened steel parts and describing the chemical, mechanical (hardness traverse), visual and metallographic methods for measuring them. | Active | Carbonitride, Case Harden (Carburize), Flame Hardening +3 | Purchase |
ASTM International standards
Industrial plating, coating and test-method standards used on commercial drawings worldwide. Copyrighted; purchased from ASTM.
| Document | Covers | Status | Applies to | |
|---|---|---|---|---|
Standard Practice for Quantitative Measurement and Reporting of Hypoeutectoid Carbon and Low-Alloy Steel Phase Transformations | Standard practice for measuring, by dilatometry, the transformation temperatures and phase-transformation kinetics of hypoeutectoid carbon and low-alloy steels, and for reporting the results (Ac1, Ac3, Ar3, Ar1, Bs, Ms, transformation start and finish). | Active | Austemper, Full Anneal, Martemper +3 | Purchase |
Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products | Specifies batch hot-dip galvanized zinc coatings on fabricated and unfabricated iron and steel products. | Active | Hot-Dip Galvanizing | Purchase |
Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware | Specifies hot-dip zinc coating on centrifuged or otherwise handled iron and steel hardware. | Active | Hot-Dip Galvanizing | Purchase |
Standard Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems | Provides practices for cleaning, descaling, pickling, and passivating stainless-steel parts, equipment, and systems. | Active | Electropolishing, Stainless Steel Passivation, Stainless Steel Pickling | Purchase |
Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip | Provides general requirements and standard finish designations for flat-rolled stainless and heat-resisting steel plate, sheet, and strip. | Active | — | Purchase |
Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes | Specification for hot-rolled and cold-finished age-hardening (precipitation-hardening) stainless steel bars, shapes and forging stock — Types 630 (17-4PH), 631 (17-7PH), 632, 634, 635, 660 (A-286) and the XM grades (XM-12 15-5PH, XM-13 PH13-8Mo, XM-16, XM-25) — including the heat-treat conditions and minimum properties for each. | Active | Q+T H1025, Q+T H1075, Q+T H1150 +1 | Purchase |
Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts | Specifies nitric-acid and citric-acid passivation treatments and verification tests for stainless steel parts. | Active | Citric Acid Passivation, Electropolishing, Stainless Steel Passivation +1 | Purchase |
Standard Practice for Operating Salt Spray (Fog) Apparatus | Defines apparatus and operating conditions for a controlled neutral salt-spray cabinet but does not set coating-specific exposure duration or acceptance limits. | Active | Anodizing Type II, Boric-Sulfuric Acid Anodizing Type IC, Chemical Conversion Coating +6 | Purchase |
Standard Guide for Engineering Chromium Electroplating | Provides guidance for depositing functional hard chromium while preserving required substrate and deposit properties. | Active | Hard Chrome Plating | Purchase |
Standard Specification for Copper-Beryllium Alloy Plate, Sheet, Strip, and Rolled Bar | Specification for copper-beryllium alloy (C17000, C17200, C17500, C17510) plate, sheet, strip and rolled bar in solution-annealed, cold-rolled, mill-hardened and age-hardened tempers, with age-hardening capability requirements. | Active | Age C17200 (Beryllium Cu) | Purchase |
Standard Specification for Copper-Beryllium Alloy Rod and Bar | Specification for copper-beryllium alloy (C17000, C17200, C17300, C17500, C17510) rod and bar in solution-annealed, cold-drawn, age-hardened and mill-hardened tempers, with age-hardening capability requirements. | Active | Age C17200 (Beryllium Cu) | Purchase |
Standard Specification for Electrodeposited Coatings of Copper Plus Nickel Plus Chromium and Nickel Plus Chromium | Specifies decorative and protective copper-nickel-chromium or nickel-chromium systems on specified metal substrates. | Active | Decorative Nickel-Chrome Plating | Purchase |
Standard Specification for Electrodeposited Coatings of Gold for Engineering Uses | Specifies electrodeposited engineering gold by purity type, Knoop-hardness code, and minimum thickness. | Active | Gold Plating | Purchase |
Standard Specification for Electrodeposited Coatings of Tin | Specifies electrodeposited tin coatings on metallic articles for solderability, contacts, corrosion protection, anti-galling, and nitriding stop-off. | Active | Tin Plating | Purchase |
Standard Practice for Qualitative Adhesion Testing of Metallic Coatings | Provides qualitative methods for evaluating adhesion of metallic coatings to their substrates. | Active | — | Purchase |
Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel | Specifies electrodeposited zinc coatings on iron and steel, including service-condition thickness and supplementary-treatment classifications. | Active | Zinc Plating | Purchase |
Standard Specification for Electroplated Engineering Nickel Coatings | Specifies electrodeposited nickel coatings for functional engineering applications rather than decorative nickel-chromium systems. | Active | Electrolytic Nickel Plating | Purchase |
Standard Specification for Electrodeposited Coatings of Silver for Engineering Use | Specifies electrodeposited engineering silver by purity, appearance, supplementary tarnish treatment, and purchaser-defined thickness. | Active | Silver Plating | Purchase |
Standard Specification for Autocatalytic (Electroless) Nickel-Phosphorus Coatings on Metal | Covers autocatalytic nickel-phosphorus coatings on metals for engineering use, classified by substrate, service condition, phosphorus content, and heat treatment. | Active | Electroless Nickel Plating | Purchase |
Standard Specification for Electrodeposited Copper for Engineering Uses | Specifies electrodeposited copper coatings for engineering uses such as underplating, stop-off, EMI shielding, and joining. | Active | Copper Plating | Purchase |
Standard Specification for Electrodeposited Coatings of Zinc Nickel Alloy Deposits | Specifies electrodeposited zinc-nickel alloy coatings on metals with conversion-coating and thickness designations. | Active | Zinc-Nickel Plating | Purchase |
Standard Guide for Post-Coating Treatments of Steel for Reducing the Risk of Hydrogen Embrittlement | Guides selection of post-coating heat treatments for reducing hydrogen-embrittlement risk in steel parts. | Active | Cadmium Plating, Electrolytic Nickel Plating, Hard Chrome Plating +2 | Purchase |
Standard Specification for Passivation of Stainless Steels Using Electropolishing | Specifies passivation of 200-, 300-, and 400-series and precipitation-hardening stainless steels by electropolishing. | Active | Electropolishing | Purchase |
Standard Practice for Heat Treatment of Aluminum-Alloy Castings from All Processes | Standard practice for the solution heat treatment, quenching, ageing and annealing of aluminum-alloy castings produced by any casting process, with recommended temperatures and times per alloy and temper. | Active | Age T6 (Aluminum), Age T651 (Aluminum), Age T73 (Aluminum) +1 | Purchase |
Standard Practice for Heat Treatment of Wrought Aluminum Alloys | Standard practice for the solution heat treatment, quenching, precipitation (age) hardening and annealing of wrought aluminum alloys — sheet, plate, extrusions, forgings, bar and machined parts — in the 2000 series, 6000 series and 7000 series. | Active | Age T6 (Aluminum), Age T651 (Aluminum), Age T73 (Aluminum) +1 | Purchase |
Standard Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments | Provides procedures and rating scales for evaluating corrosion, undercutting, and coating failure after exposure of painted or coated specimens. | Active | — | Purchase |
Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact) | Evaluates cracking or loss of adhesion when an organic coating and metal panel are rapidly deformed by a falling-weight impact. | Active | — | Purchase |
Standard Test Methods for Rating Adhesion by Tape Test | Provides tape-test methods for assessing adhesion of film coatings to metallic substrates by cut-and-peel examination. | Active | Hot Stamping, Ink Stamping, Pad Printing +1 | Purchase |
Standard Test Method for Film Hardness by Pencil Test | Determines organic coating film hardness by pushing prepared drawing leads of graded hardness across the surface. | Active | — | Purchase |
Standard Test Methods for Mandrel Bend Test of Attached Organic Coatings | Evaluates flexibility and resistance to cracking of attached organic coatings when a coated panel is bent over cylindrical or conical mandrels. | Active | — | Purchase |
Standard Test Method for Specular Gloss | Measures specular gloss of nonmetallic surfaces using 20-degree, 60-degree, or 85-degree geometries. | Active | — | Purchase |
Standard Practice for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to Ferrous Metals and Nonmagnetic, Nonconductive Coatings Applied to Non-Ferrous Metals | Describes nondestructive magnetic and eddy-current gauge measurement of dry coating thickness on ferrous and non-ferrous metal substrates. | Active | — | Purchase |
Standard Test Method for Brinell Hardness of Metallic Materials | Test method for Brinell hardness of metallic materials — 10, 5, 2.5 and 1 mm tungsten-carbide ball indenters, test forces from 1 to 3000 kgf, procedure, minimum thickness and verification. | Active | Anneal to O Temper (Aluminum), Austemper, Full Anneal +6 | Purchase |
Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness | Standard hardness conversion tables relating Brinell, Vickers, Rockwell, Rockwell superficial, Knoop, Scleroscope and Leeb hardness for non-austenitic steel, austenitic stainless steel, nickel and high-nickel alloys, cartridge brass, copper, alloyed white iron and wrought aluminum products. | Active | Gas Nitride, High Temper, Induction Hardening +3 | Purchase |
Standard Test Methods for Rockwell Hardness of Metallic Materials | Test methods for Rockwell and Rockwell superficial hardness of metallic materials — indenters, test forces, procedure, scale designations, and verification of testing machines and reference test blocks. | Active | Age (Inconel 718), Age C17200 (Beryllium Cu), Age T6 (Aluminum) +19 | Purchase |
Standard Test Method for Microindentation Hardness of Materials | Test method for Knoop and Vickers microindentation hardness of materials with test forces from 1 gf to 1 kgf (9.8 mN to 9.8 N), including specimen preparation, indentation measurement, spacing and verification. | Active | Age C17200 (Beryllium Cu), Carbonitride, Case Harden (Carburize) +6 | Purchase |
Standard Specification for Zinc/Aluminum Corrosion Protective Coatings for Fasteners | Formerly specified water-based zinc/aluminum dispersion coatings and optional sealers or topcoats for ferrous fasteners. | Withdrawn → ASTM F3393 | Zinc-Flake Dip-Spin Coating | Purchase |
Standard Practice for Evaluating Ink or Coating Adhesion to Flexible Packaging Materials Using Tape | Describes a tape procedure for evaluating ink or coating adhesion on flexible packaging materials; notes: it is not specifically an in-mold-label or pressure-sensitive-label adhesion standard. | Withdrawn | In-Mold Labeling (IML) | Purchase |
Standard Specification for Additive Manufacturing Nickel Alloy (UNS N07718) with Powder Bed Fusion | Specification for additively manufactured Inconel 718 (UNS N07718) parts made by powder bed fusion, covering feedstock, build, thermal post-processing classes, chemistry, mechanical properties and inspection. | Active | Hot Isostatic Press (HIP), Solution Treat + Age (Ti) | Purchase |
Standard for Additive Manufacturing—Post Processing Methods—Standard Specification for Thermal Post-Processing Metal Parts Made Via Powder Bed Fusion | Specification for thermal post-processing (stress relief, annealing, solution treatment, ageing and hot isostatic pressing) of metal parts made by powder bed fusion, covering process control, equipment, documentation and verification. | Active | Hot Isostatic Press (HIP), Solution Treat + Age (Ti) | Purchase |
ISO standards
International equivalents used on European and Asian drawings. Copyrighted; purchased from ISO or a national body.
| Document | Covers | Status | Applies to | |
|---|---|---|---|---|
Anodizing of Aluminium and Its Alloys — Specification for Hard Anodic Oxidation Coatings on Aluminium and Its Alloys | Specifies requirements and test methods for hard anodic oxidation coatings on wrought and cast aluminum alloys, excluding plasma-electrolytic processes. | Active | Hard Anodizing Type III | Purchase |
Fasteners — Non-Electrolytically Applied Zinc Flake Coating Systems | Specifies non-electrolytically applied zinc-flake systems for threaded and non-threaded steel fasteners. | Active | Zinc-Flake Dip-Spin Coating | Purchase |
Automatic Identification and Data Capture Techniques — Bar Code Symbol Print Quality Test Specification — Two-Dimensional Symbols | Defines measurement and continuous quality grading for printed two-dimensional matrix and multi-row barcode symbols. | Active | Dot Peen Marking, In-Mold Labeling (IML), Laser Marking | Purchase |
Automatic Identification and Data Capture Techniques — Bar Code Symbol Print Quality Test Specification — Linear Symbols | Defines measurement and continuous quality grading of linear barcode symbols read by linear scanning methods. | Active | In-Mold Labeling (IML), Laser Marking | Purchase |
Technical product documentation — Heat-treated ferrous parts — Presentation and indications | Rules for presenting heat-treated ferrous parts on technical drawings — how to indicate the heat-treatment condition, hardness with tolerance, hardening depth (CHD, SHD, NHD) and the extent of locally hardened zones. | Active | Gas Nitride, Nitrocarburize (Ferritic), Plasma (Ion) Nitride | Purchase |
Paints and Varnishes — Cross-Cut Test | Specifies a cross-cut procedure and 0-to-5 classification for resistance of paint coatings to separation from a substrate or underlying coat. | Active | Ink Stamping, Pad Printing, Screen Printing | Purchase |
Steels — Determination and verification of the depth of carburized and hardened cases | Method for determining the case hardening depth (CHD) of carburized or carbonitrided and hardened steel parts by a Vickers hardness traverse, and a simplified method for verifying a specified CHD in production. | Active | Carbonitride, Case Harden (Carburize) | Purchase |
Heat-treatable steels, alloy steels and free-cutting steels — Part 1: Non-alloy steels for quenching and tempering | Technical delivery requirements for non-alloy steels for quenching and tempering (C22 to C60 with their E and R variants, 28Mn6) supplied as bar, rod, wire rod, flat products and forgings in the untreated, treated-for-shearability, annealed, normalized or quenched-and-tempered condition. | Active | Austemper, Full Anneal, Martemper +2 | Purchase |
Heat-treatable steels, alloy steels and free-cutting steels — Part 2: Alloy steels for quenching and tempering | Technical delivery requirements for alloy steels for quenching and tempering (Cr, Cr-Mo, Cr-Ni-Mo, Cr-V, Mn-B and Ni-Cr-Mo grades such as 41Cr4, 25CrMo4, 42CrMo4, 34CrNiMo6, 30CrNiMo8, 51CrV4) as bar, rod, flat products and forgings. | Active | Austemper, Full Anneal, Normalize +1 | Purchase |
Heat-treatable steels, alloy steels and free-cutting steels — Part 3: Case-hardening steels | Technical delivery requirements for case-hardening steels (C10E–C16E, 17Cr3, 16MnCr5, 20MnCr5, 18CrMo4, 20MoCr4, 16NiCr4, 18CrNiMo7-6, 17NiCrMo6-4, 20NiCrMo2-2 and others) as bar, rod, wire rod, flat products and forgings. | Active | Case Harden (Carburize), Full Anneal, Martemper +1 | Purchase |
Anodizing of Aluminium and Its Alloys — Method for Specifying Decorative and Protective Anodic Oxidation Coatings on Aluminium | Defines how to specify decorative and protective anodic oxidation coatings on aluminum, including nominal thickness classes and appearance and performance requirements. | Active | Anodizing Type II | Purchase |
Preparation of Steel Substrates Before Application of Paints and Related Products — Visual Assessment of Surface Cleanliness — Part 1 | Defines rust grades and visual preparation grades for uncoated steel and steel after complete removal of previous coatings. | Active | — | Purchase |
Corrosion Tests in Artificial Atmospheres — Salt Spray Tests | Defines neutral, acetic-acid, and copper-accelerated acetic-acid salt-spray test atmospheres for corrosion testing. | Active | — | Purchase |
Finish specifications — frequently asked
Are MIL specifications free?
Yes. Documents issued by the US Department of Defense (MIL-, DOD-, MIL-STD-, FED-STD-) are US Government works in the public domain. The official source is the DLA ASSIST Quick Search; FabDigit mirrors the current revision of the finish-related ones here for convenience. SAE AMS, ASTM and ISO standards are copyrighted and must be bought from their publishers — the pages here explain their structure so the drawing can be read, but do not reproduce them.
What is the difference between MIL-C-5541 and MIL-DTL-5541?
They are the same document. In the late 1990s the DoD renamed many MIL-C (coating) and MIL-P (plating) specifications to MIL-DTL (detail specification) or MIL-PRF (performance specification) as part of acquisition reform; the technical content carried over into the next revision. A drawing that says MIL-C-5541 is satisfied by the current MIL-DTL-5541.
A MIL spec is cancelled — what do I put on the drawing?
Use the superseding document named in the cancellation notice, usually a SAE AMS or ASTM standard: MIL-C-26074 electroless nickel → AMS 2404 / ASTM B733; QQ-P-416 cadmium → AMS-QQ-P-416; QQ-N-290 nickel → AMS-QQ-N-290; MIL-P-23377 primer → MIL-PRF-23377 (still active). Each specification page here shows its status and successor.
What do Type and Class mean on a finish specification?
Type usually selects the chemistry or process variant (MIL-A-8625 Type II = sulfuric anodize, Type III = hard anodize; MIL-DTL-5541 Type I = hexavalent chromate, Type II = chromium-free), while Class selects the performance level or an option such as dye or thickness (MIL-A-8625 Class 1 = undyed, Class 2 = dyed; ASTM B633 SC1–SC4 = 5–25 µm thickness service conditions). Grade, Form and Method appear in some documents for finer choices. The Type / Class table on each page lists what every combination requires.
