Steel 1005
AISI/SAE 1005 · UNS G10050
1005 (UNS G10050) is an extra-low-carbon plain steel at about 0.05 % C, the softest and most ductile grade of the low-carbon family.
Reference datasheet — 1005 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 CD condition
1005 tempers and conditions
1005 is supplied in 6 conditions, soft to hard. CD is the default FabDigit quotes; the values on this page are for it.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Solution annealed | Softest, most ductile condition — pick it for severe cold heading, deep drawing or multi-stage forming. | 170 | 285 | 36 | 85 HB | — |
Hot rolled | Cheapest form for weldments and parts machined all over; scaled surface and loose tolerances. | 180 | 320 | 28 | 95 HB | — |
Normalized | Used to refine grain and homogenize forgings or heavy hot-rolled sections before machining or welding. | 190 | 310 | 33 | 90 HB | 12 % IACS |
Carburized, quenched and low-temperature tempered | Case-hardening route for wear surfaces (pins, bushings, small gears) on a tough, very soft low-carbon core. | 300 | 480 | 20 | 60 HRC | 10 % IACS |
CDDefault Cold drawn | Default stock condition for round bar and wire: better tolerance, straightness and machined finish than hot rolled. | 315 | 365 | 20 | 105 HB | — |
Cold rolled full hard | Highest strength/stiffest springback condition for flat blanks, shims and roll-formed sections needing no bending. | 520 | 570 | 3 | 160 HB | — |
Supply forms, finishes and certifications
Ways 1005 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
CRA | Cold rolled, annealed & temper rolled sheet | Surface finish |
What is 1005?
1005 (UNS G10050) is an extra-low-carbon plain steel at about 0.05 % C, the softest and most ductile grade of the low-carbon family. It is specified where cold work rather than strength governs — deep-drawn stampings, cold-headed parts, wire and enamelling sheet — and is stocked as hot-rolled and cold-rolled sheet, coil, wire and bar. In the listed condition it gives 315 MPa yield, 365 MPa tensile, 20 % elongation and 105 HB, so it is not a load-bearing choice; it also has no corrosion resistance and machines gummy (score 45). Move to 1008/1010 or 1018 when more strength is needed. 1005 has a density of 7.87 g/cm³ (0.284 lb/in³), heavier than 92% of steel grades. It melts at 1,495°C (2,723 °F). 1005 has a yield strength of 315 MPa (45.7 ksi) and a tensile strength of 365 MPa (52.9 ksi) — weaker than 82% of steel grades. Elongation at break is 20% and the elastic modulus is 200 GPa (29 Msi).
What is 1005 used for?
- Deep-drawn stampings
- Wire products
- Cold-headed fasteners
- Enameling sheet
Advantages
- High electrical conductivity — 11 % IACS, better than 98% of steel grades
- Readily welded — 95/100, better than 97% of steel grades
- Conducts heat well — 51.9 W/m·K (30 BTU/hr·ft·°F), better than 96% of steel grades
- Forms and bends easily — 80/100, better than 93% of steel grades
- Tough — resists crack growth — 130 MPa·√m (118.3 ksi·√in), better than 89% of steel grades
Limitations
- Hard to polish — 40/100, worse than 96% of steel grades
- Low strength — 315 MPa (45.7 ksi), worse than 82% of steel grades
1005 properties
Typical room-temperature values for 1005-CD; bars are the position among steel grades.
Physical3
1005 has a density of 7.87 g/cm³ (0.284 lb/in³), heavier than 92% of steel grades. It melts at 1,495°C (2,723 °F).
Mechanical16
1005 has a yield strength of 315 MPa (45.7 ksi) and a tensile strength of 365 MPa (52.9 ksi) — weaker than 82% of steel grades. Elongation at break is 20% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
1005 is rated for continuous service to 400°C (752 °F). It conducts heat at 51.9 W/m·K (30 BTU/hr·ft·°F), better than 96% of steel grades. Thermal expansion is 11.9 µm/m·K (6.61 µin/in·°F).
Electrical3
1005 conducts electricity at 11 % IACS, better than 98% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (10/100), worse than 86% of steel grades.
Sustainability4
Producing a kilogram of 1005 takes about 25 MJ of energy and emits 2 kg of CO₂ — less than 82% of steel grades. Typical recycled content is 25%.
Manufacturability6
1005's machinability is fair (45/100, worse than 65% of steel grades); weldability excellent (95/100); formability very good (80/100).
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 steel family
Yield strength against density for every steel grade FabDigit runs. 1005 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1005
Is 1005 easy to machine?
Gummy and low-strength: use sharp positive-rake tools, high speed, generous coolant and chip breakers; expect built-up edge and poor finish in the annealed state — cold-drawn stock machines noticeably better.
Can 1005 be welded?
Excellent by all processes (RSW, MIG, TIG, laser, oxyfuel) with no preheat or PWHT; use ER70S-3/-6 filler and control weld-metal deoxidation on rimmed/unkilled sheet.
Can 1005 be formed, bent or molded?
Outstanding cold formability — deep drawing, stretch forming, roll forming, cold heading and bending to ~0.5t radii; watch for stretcher strain (Lüders) marks on non-temper-rolled sheet.
1005 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 |
|---|---|---|
| CSAE J403 ceiling | ≤ 0.06 | 0.05 |
| Mn | ≤ 0.35 | 0.3 |
| P | ≤ 0.04 | 0.02 |
| S | ≤ 0.05 | 0.02 |
| Fe | balance |
What surface finishes work on 1005?
Not anodizable; protect by zinc plating, hot-dip galvanizing, phosphate + oil, e-coat or powder paint. Takes plating and paint readily but rusts within hours bare in humid air.
Surface treatments FabDigit runs on 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).
Organic Coating
Black / Phosphate
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Steel 1005 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- G10050
How much does 1005 cost?
1005 is a budget-cost steel ($), cheaper than about 90% 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.
1005 — frequently asked
What is 1005 used for?
1005 is typically used for deep-drawn stampings, wire products, cold-headed fasteners and enameling sheet. In short: best deep-drawing carbon steel; lowest strength, highest ductility; weldable by every common process.
What is the yield strength of 1005?
1005 has a typical yield strength of 315 MPa (45.7 ksi) and a tensile strength of 365 MPa (52.9 ksi) — weaker than 82% of steel grades. Strength varies by condition: see the 6 listed tempers.
Is 1005 easy to machine?
Reasonably — machinability is rated fair (45/100, worse than 65% of steel grades). Gummy and low-strength: use sharp positive-rake tools, high speed, generous coolant and chip breakers; expect built-up edge and poor finish in the annealed state — cold-drawn stock machines noticeably better.
Can 1005 be welded?
Yes — weldability is rated excellent (95/100). Excellent by all processes (RSW, MIG, TIG, laser, oxyfuel) with no preheat or PWHT; use ER70S-3/-6 filler and control weld-metal deoxidation on rimmed/unkilled sheet.
What surface finishes work on 1005?
Not anodizable; protect by zinc plating, hot-dip galvanizing, phosphate + oil, e-coat or powder paint. Takes plating and paint readily but rusts within hours bare in humid air.
Can 1005 be formed, bent or molded?
Outstanding cold formability — deep drawing, stretch forming, roll forming, cold heading and bending to ~0.5t radii; watch for stretcher strain (Lüders) marks on non-temper-rolled sheet.
What is the maximum service temperature of 1005?
1005 is rated for continuous use to about 400°C (752 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 1005-CD and 1005 CR-FH?
CD is the default condition — default stock condition for round bar and wire: better tolerance, straightness and machined finish than hot rolled. CR-FH: highest strength/stiffest springback condition for flat blanks, shims and roll-formed sections needing no bending. Yield strength is 315 MPa in CD versus 520 MPa in CR-FH.
How much does 1005 cost?
1005 is a budget-cost steel ($), cheaper than about 90% 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
- SAE J403 — Chemical Compositions of SAE Carbon Steels — SAE International (2014)
- ASTM A29/A29M — Steel Bars, Carbon and Alloy, Hot-Wrought — ASTM (2020)
- ASTM A1008/A1008M — Cold-Rolled Carbon Steel Sheet — ASTM (2021)
- ASTM A510 — Carbon Steel Wire Rod and Coarse Round Wire — ASTM (2018)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.16 — Machining — ASM International (1989)
- Carbon steel property compilations (typical RT values) — MatWeb / CES (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.