Stainless Steel 1.4436
EN 1.4436
1.4436 (X3CrNiMo17-13-3, S31600/316) is a standard-carbon, molybdenum-bearing austenitic stainless close to 316 but with slightly higher nickel and molybdenum for improved corrosion resistance.
Reference datasheet — 1.4436 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the AT condition
1.4436 tempers and conditions
1.4436 is supplied in 8 conditions, soft to hard. AT is the default FabDigit quotes; the values on this page are for it.
Compare all 8 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Hot Rolled + Solution Annealed + Pickled plate | Heavy plate route (>6 mm) — same metallurgy as 2B sheet but slightly lower guaranteed strength and rougher surface. | 260 | 580 | 50 | 150 HB | 2.3 % IACS |
ATDefault Solution Annealed | Standard stocked condition: 1030–1100 °C solution anneal + rapid quench, maximum corrosion resistance and formability. | 270 | 590 | 50 | 150 HB | — |
As-welded deposit | Property set for weld metal / HAZ of a joint made with ER316L-type filler, before any post-weld solution anneal. | 350 | 560 | 35 | 175 HB | 2.3 % IACS |
Cold worked, Rm ≥ 700 MPa | Light cold work (≈1/4 hard) for bar/wire where a moderate strength increase is needed with useful ductility. | 400 | 750 | 25 | 20 HRC | 2.3 % IACS |
Cold drawn | Cold-drawn round/hex bar for machined parts and fasteners — higher yield and better surface than hot-rolled bar. | 500 | 700 | 25 | 20 HRC | 2.3 % IACS |
Cold worked, Rm ≥ 800 MPa | ≈1/2 hard bar and wire for shafts, springs and fasteners needing higher proof strength. | 560 | 850 | 15 | 26 HRC | 2.3 % IACS |
Cold worked, Rm ≥ 900 MPa | ≈3/4 hard strip/wire where strength matters more than bendability. | 650 | 950 | 11 | 30 HRC | 2.3 % IACS |
C1000 / Full Hard | Full-hard strip and spring wire — maximum strength, minimum ductility, only simple flat or coiled parts. | 800 | 1,100 | 8 | 35 HRC | 2.3 % IACS |
Supply forms, finishes and certifications
Ways 1.4436 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
BA | Bright Annealed strip/tube | Surface finish |
What is 1.4436?
1.4436 (X3CrNiMo17-13-3, S31600/316) is a standard-carbon, molybdenum-bearing austenitic stainless close to 316 but with slightly higher nickel and molybdenum for improved corrosion resistance. Engineers use it for general marine and chemical hardware in sheet, plate, bar, cold-drawn sections, bright-annealed tube and welded forms, at 270 MPa yield, 590 MPa tensile and 50 % elongation annealed. Because carbon is not restricted to 0.03 %, heavy welded sections can sensitize in the 500–800 °C range; use 1.4435/316L for welded corrosion service and 1.4439 where higher pitting resistance is needed. 1.4436 has a density of 8 g/cm³ (0.289 lb/in³), heavier than 92% of stainless steel grades. It melts at 1,370°C (2,498 °F). 1.4436 has a yield strength of 270 MPa (39.2 ksi) and a tensile strength of 590 MPa (85.6 ksi) — weaker than 79% of stainless steel grades. Elongation at break is 50% and the elastic modulus is 200 GPa (29 Msi).
What is 1.4436 used for?
- marine fittings
- chemical processing
- pump/valve components
- food equipment
Advantages
- Forms and bends easily — 85/100, better than 95% of stainless steel grades
- Ductile — tolerates forming and impact — 50%, better than 90% of stainless steel grades
- Polishes to a fine finish — 80/100, better than 89% of stainless steel grades
- Tough — resists crack growth — 200 MPa·√m (182 ksi·√in), better than 86% of stainless steel grades
- High service temperature — 870°C (1,598 °F), better than 83% of stainless steel grades
Limitations
- Low strength — 270 MPa (39.2 ksi), worse than 79% of stainless steel grades
- High embodied carbon — 5.5 kg CO₂/kg, worse than 77% of stainless steel grades
1.4436 properties
Typical room-temperature values for 1.4436-AT; bars are the position among stainless steel grades.
Physical3
1.4436 has a density of 8 g/cm³ (0.289 lb/in³), heavier than 92% of stainless steel grades. It melts at 1,370°C (2,498 °F).
Mechanical16
1.4436 has a yield strength of 270 MPa (39.2 ksi) and a tensile strength of 590 MPa (85.6 ksi) — weaker than 79% of stainless steel grades. Elongation at break is 50% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
1.4436 is rated for continuous service to 870°C (1,598 °F). It conducts heat at 15 W/m·K (8.67 BTU/hr·ft·°F), worse than 59% of stainless steel grades. Thermal expansion is 16 µm/m·K (8.89 µin/in·°F).
Electrical3
1.4436 conducts electricity at 2.3 % IACS, better than 55% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is very good (72/100), better than 73% of stainless steel grades.
Sustainability4
Producing a kilogram of 1.4436 takes about 57 MJ of energy and emits 5.5 kg of CO₂ — more than 62% of stainless steel grades. Typical recycled content is 65%.
Manufacturability8
1.4436's machinability is fair (35/100, better than 51% of stainless steel grades); weldability very good (80/100); formability excellent (85/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the stainless steel family
Yield strength against density for every stainless steel grade FabDigit runs. 1.4436 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1.4436
Is 1.4436 easy to machine?
Gummy and work-hardening: use rigid setups, sharp positive-rake carbide, heavy positive feed, ~60–120 m/min cutting speed and flood coolant; never dwell or rub.
Can 1.4436 be welded?
Readily welded by TIG/MIG/SMAW/laser with ER316L or 318 filler, low heat input and interpass <150 °C; back-purge for corrosion service and pickle/passivate afterwards, PWHT normally not required for thin sections.
Can 1.4436 be formed, bent or molded?
Excellent deep-drawing and bending in the annealed state, but high work-hardening rate demands ~50% more press force than carbon steel, generous bend radii and interstage annealing for severe draws.
1.4436 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Cstandard carbon, not an 'L' grade | ≤ 0.05 | 0.03 |
| Si | ≤ 1 | 0.5 |
| Mn | ≤ 2 | 1.5 |
| P | ≤ 0.05 | 0.03 |
| S | ≤ 0.02 | 0.01 |
| Cr | 16.5 – 18.5 | 17.5 |
| Nihigher Ni than 1.4401 for austenite stability | 10.5 – 13 | 12 |
| Monarrower, higher Mo band than 316 | 2.5 – 3 | 2.7 |
| N | ≤ 0.11 | 0.05 |
| Fe | balance |
What surface finishes work on 1.4436?
Not anodisable; specify pickling + passivation (ASTM A967) or electropolishing for hygienic service, and mechanical/BA polishing up to No.8 mirror finish for decorative work.
Surface treatments FabDigit runs on stainless steel parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Passivation
Organic Coating
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Stainless Steel 1.4436 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- X3CrNiMo17-13-3
- Similar grades
- S3160031606Cr17Ni12Mo2
How much does 1.4436 cost?
1.4436 is a standard-cost stainless steel ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
1.4436 — frequently asked
What is 1.4436 used for?
1.4436 is typically used for marine fittings, chemical processing, pump/valve components and food equipment. In short: higher-Mo standard 316; stronger than 316L; broad stock availability.
What is the yield strength of 1.4436?
1.4436 has a typical yield strength of 270 MPa (39.2 ksi) and a tensile strength of 590 MPa (85.6 ksi) — weaker than 79% of stainless steel grades. Strength varies by condition: see the 8 listed tempers.
Is 1.4436 easy to machine?
Not especially — machinability is rated fair (35/100, better than 51% of stainless steel grades). Gummy and work-hardening: use rigid setups, sharp positive-rake carbide, heavy positive feed, ~60–120 m/min cutting speed and flood coolant; never dwell or rub.
Can 1.4436 be welded?
Yes — weldability is rated very good (80/100). Readily welded by TIG/MIG/SMAW/laser with ER316L or 318 filler, low heat input and interpass <150 °C; back-purge for corrosion service and pickle/passivate afterwards, PWHT normally not required for thin sections.
What surface finishes work on 1.4436?
Not anodisable; specify pickling + passivation (ASTM A967) or electropolishing for hygienic service, and mechanical/BA polishing up to No.8 mirror finish for decorative work.
Can 1.4436 be formed, bent or molded?
Excellent deep-drawing and bending in the annealed state, but high work-hardening rate demands ~50% more press force than carbon steel, generous bend radii and interstage annealing for severe draws.
What is the maximum service temperature of 1.4436?
1.4436 is rated for continuous use to about 870°C (1,598 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 1.4436-AT and 1.4436-C1000?
AT is the default condition — standard stocked condition: 1030–1100 °C solution anneal + rapid quench, maximum corrosion resistance and formability. C1000: full-hard strip and spring wire — maximum strength, minimum ductility, only simple flat or coiled parts. Yield strength is 270 MPa in AT versus 800 MPa in C1000.
How much does 1.4436 cost?
1.4436 is a standard-cost stainless steel ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- EN 10088-1/-2/-3 Stainless steels — list, sheet/plate and bar — CEN (2014)
- ASTM A240/A276 (S31600 equivalent) — ASTM International (2023)
- GB/T 20878 / GB/T 4237 (06Cr17Ni12Mo2) — SAC (2015)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels — ASM International (1990)
- Outokumpu Corrosion Handbook / Stainless Steel Handbook — Outokumpu (2020)
- Sandvik/Alleima and Aperam datasheets for 1.4436 / 316 — Alleima, Aperam (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.