Stainless Steel 310S · supply condition
Stainless Steel 310S Cold Drawn
Properties of the Cold Drawn condition, compared with the other 310S tempers.
Pick for tighter tolerance bar, better surface and higher room-temperature strength; ductility and creep-service benefit are reduced.
What is 310S Cold Drawn?
310S Cold Drawn is 310S supplied in the Cold Drawn condition — pick for tighter tolerance bar, better surface and higher room-temperature strength; ductility and creep-service benefit are reduced. 310S Cold Drawn has a yield strength of 520 MPa (75.4 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 79% of stainless steel grades. Elongation at break is 25% and the elastic modulus is 200 GPa (29 Msi). 310S Cold Drawn has a density of 7.98 g/cm³ (0.288 lb/in³), heavier than 85% of stainless steel grades. It melts at 1,400°C (2,552 °F). Solution Annealed is the default condition FabDigit quotes; Cold Drawn is available on request or by drawing note.
Advantages
- High service temperature — 1,050°C (1,922 °F), better than 91% of stainless steel grades
- High strength — 520 MPa (75.4 ksi), better than 79% of stainless steel grades
Limitations
- High embodied carbon — 6.5 kg CO₂/kg, worse than 92% of stainless steel grades
310S Cold Drawn properties
Typical room-temperature values for 310S Cold Drawn — 11 properties are specific to this condition; the rest are grade-level values shared by every 310S temper. Each bar shows where the value sits among the stainless steel grades in FabDigit's library — further right is higher.
Physical3
310S Cold Drawn has a density of 7.98 g/cm³ (0.288 lb/in³), heavier than 85% of stainless steel grades. It melts at 1,400°C (2,552 °F).
Mechanical15
310S Cold Drawn has a yield strength of 520 MPa (75.4 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 79% of stainless steel grades. Elongation at break is 25% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
310S Cold Drawn is rated for continuous service to 1,050°C (1,922 °F). It conducts heat at 14.2 W/m·K (8.2 BTU/hr·ft·°F), worse than 76% of stainless steel grades. Thermal expansion is 15.9 µm/m·K (8.83 µin/in·°F).
Electrical3
310S Cold Drawn conducts electricity at 2.2 % IACS, worse than 61% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is good (66/100), better than 58% of stainless steel grades.
Sustainability4
Producing a kilogram of 310S Cold Drawn takes about 85 MJ of energy and emits 6.5 kg of CO₂ — more than 91% of stainless steel grades. Typical recycled content is 55%.
Manufacturability8
310S Cold Drawn's machinability is poor (32/100, worse than 62% of stainless steel grades); weldability very good (75/100); formability fair (45/100).
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Other 310S tempers and conditions
310S is also supplied in 5 other conditions. The full side-by-side table is on the 310S overview.
- Solution AnnealedDefaultStandard as-supplied condition for plate, sheet and tube; maximum ductility, corrosion resistance and freedom from sigma/carbide precipitation.260 MPa yield · 160 HB
- Cold Worked Half HardFor springy strip, fasteners and high-strength room-temperature parts; not used for high-temperature service because cold work is lost on heating.690 MPa yield · 28 HRC
- Cold DrawnPick for tighter tolerance bar, better surface and higher room-temperature strength; ductility and creep-service benefit are reduced.520 MPa yield · 22 HRC
- Cold Rolled 2BThin sheet and strip for fabricated furnace liners, muffles and heat shields needing a smooth bright-rolled surface.280 MPa yield · 165 HB
- AnnealedUse for annealed bar, forgings and fittings where full ductility and weldability are needed but section is too heavy for sheet practice.255 MPa yield · 170 HB
Working with 310S Cold Drawn
Is 310S easy to machine?
Gummy and strongly work-hardening: use rigid setups, positive-rake sharp carbide, ~30–60 m/min surface speed, heavy feed, no dwell, and flood coolant.
Can 310S be welded?
Readily welded by GTAW/GMAW/SMAW with matching 310/ER310 filler; keep heat input low, no preheat or PWHT, avoid long exposure at 650–900 °C to prevent sigma embrittlement.
Can 310S be formed, bent or molded?
Good cold formability but high work-hardening rate demands ~50% more press force than 304; hot work at 1150–1200 °C and re-solution anneal after heavy forming.
What surface finishes work on 310S?
Not anodizable — pickle and passivate or electropolish after welding to restore the oxide; grinds and polishes to bright finishes, glass-bead or shot blast for furnace parts.
310S 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 |
|---|---|---|
| C0.08 max (310S vs 0.25 max for 310) | ≤ 0.08 | 0.05 |
| Cr | 24 – 26 | 25 |
| Ni | 19 – 22 | 20.5 |
| Mn | ≤ 2 | 1.2 |
| Si1.00 max in some EN/JIS deliveries | ≤ 1.5 | 0.6 |
| P | ≤ 0.05 | 0.03 |
| S | ≤ 0.03 | 0.01 |
| NEN 1.4845 limit | ≤ 0.11 | 0.04 |
| Fe | balance | — |
310S Cold Drawn — frequently asked
What is 310S Cold Drawn used for?
310S Cold Drawn is typically used for welded furnace muffles, heat-treatment baskets and trays, radiant tubes and burner nozzles, furnace retorts and liners, boiler and incinerator internals and annealing box covers. In short: furnace-grade austenitic stainless.
What is the yield strength of 310S Cold Drawn?
310S Cold Drawn has a typical yield strength of 520 MPa (75.4 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 79% of stainless steel grades. Strength varies by condition: see the 6 listed tempers.
Is 310S Cold Drawn easy to machine?
Not especially — machinability is rated poor (32/100, worse than 62% of stainless steel grades). Gummy and strongly work-hardening: use rigid setups, positive-rake sharp carbide, ~30–60 m/min surface speed, heavy feed, no dwell, and flood coolant.
Can 310S Cold Drawn be welded?
Yes — weldability is rated very good (75/100). Readily welded by GTAW/GMAW/SMAW with matching 310/ER310 filler; keep heat input low, no preheat or PWHT, avoid long exposure at 650–900 °C to prevent sigma embrittlement.
What surface finishes work on 310S Cold Drawn?
Not anodizable — pickle and passivate or electropolish after welding to restore the oxide; grinds and polishes to bright finishes, glass-bead or shot blast for furnace parts.
Can 310S Cold Drawn be formed, bent or molded?
Good cold formability but high work-hardening rate demands ~50% more press force than 304; hot work at 1150–1200 °C and re-solution anneal after heavy forming.
What is the maximum service temperature of 310S Cold Drawn?
310S Cold Drawn is rated for continuous use to about 1,050°C (1,922 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in 310S Cold Drawn?
Yes — 310S Cold Drawn is available for CNC machining and sheet metal with instant online pricing. Upload a STEP file to get a price and a DFM check.
Sources
- ASTM A240/A240M — Cr and Cr-Ni Stainless Plate, Sheet and Strip — ASTM International (2023)
- ASTM A276/A479 — Stainless Steel Bars and Shapes — ASTM International (2022)
- EN 10095 — Heat resisting steels and nickel alloys (1.4845) — CEN (2018)
- JIS G 4304 / GB/T 4237 (SUS310S / 06Cr25Ni20) — JISC / SAC (2015)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- Outokumpu Steel Handbook / 4845 datasheet — Outokumpu (2022)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.