Stainless Steel 410S CR 2B
Finish state
AISI/SAE 410S · UNS S41008 · EN 1.4000 · JIS SUS410S
Thin sheet/coil condition for pressed and welded parts needing a smooth mill finish.
Values for the CR 2B condition
Other 410S tempers and conditions
410S is listed in 3 conditions; see the grade overview at 410S.
- Annealed
- CR 2B
- Cold Drawn
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AnnealedDefault soft annealed (ASTM A240/A276 annealed condition) | Standard stocked condition for plate, sheet, bar and tube; maximum weldability and formability, non-hardening. | 265 | 460 | 30 | 150 HB | — |
CR 2BThis page 2B | Thin sheet/coil condition for pressed and welded parts needing a smooth mill finish. | 280 | 470 | 30 | 155 HB | 3 % IACS |
cold finished bar (annealed then cold drawn) | Choose for straight, close-tolerance bar with modestly raised strength and better turning finish. | 440 | 550 | 20 | 190 HB | — |
What is 410S CR 2B?
410S CR 2B is 410S supplied in the CR 2B condition — thin sheet/coil condition for pressed and welded parts needing a smooth mill finish. 410S CR 2B has a yield strength of 280 MPa (40.6 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 75% of stainless steel grades. Elongation at break is 30% and the elastic modulus is 200 GPa (29 Msi). 410S CR 2B has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,480°C (2,696 °F). Annealed is the default condition FabDigit quotes; CR 2B is available on request or by drawing note.
Advantages
- Low embodied carbon — 2.8 kg CO₂/kg, better than 99% of stainless steel grades
- High electrical conductivity — 3 % IACS, better than 95% of stainless steel grades
- Easy to machine — 50/100, better than 90% of stainless steel grades
- Conducts heat well — 24.9 W/m·K (14.4 BTU/hr·ft·°F), better than 87% of stainless steel grades
Limitations
- Needs corrosion protection — 48/100, worse than 80% of stainless steel grades
- Low strength — 280 MPa (40.6 ksi), worse than 75% of stainless steel grades
410S CR 2B properties
Typical room-temperature values for 410S CR 2B; 23 are specific to this condition. Other listed values are 410S reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
410S CR 2B has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,480°C (2,696 °F).
Mechanical15
410S CR 2B has a yield strength of 280 MPa (40.6 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 75% of stainless steel grades. Elongation at break is 30% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
410S CR 2B is rated for continuous service to 700°C (1,292 °F). It conducts heat at 24.9 W/m·K (14.4 BTU/hr·ft·°F), better than 87% of stainless steel grades. Thermal expansion is 10.5 µm/m·K (5.83 µin/in·°F).
Electrical3
410S CR 2B conducts electricity at 3 % IACS, better than 95% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is fair (48/100), worse than 80% of stainless steel grades.
Sustainability4
Producing a kilogram of 410S CR 2B takes about 40 MJ of energy and emits 2.8 kg of CO₂ — less than 97% of stainless steel grades. Typical recycled content is 65%.
Manufacturability7
410S CR 2B's machinability is fair (50/100, better than 90% of stainless steel grades); weldability very good (70/100); formability good (62/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 410S CR 2B
Is 410S easy to machine?
Machines like a soft 12Cr stainless (~60 % of 1212): use rigid setups, sharp positive-rake carbide, moderate speed with heavy flood coolant to avoid gumming and work-hardened skins.
Can 410S be welded?
Readily welded by GTAW/GMAW/SMAW with 309L or matching filler; 150–250 °C preheat plus 700–760 °C post-weld anneal is recommended on thick sections to restore HAZ ductility.
Can 410S be formed, bent or molded?
Cold forms and roll-bends adequately but with higher springback and less stretch than 304; allow generous bend radii and avoid severe deep drawing.
What surface finishes work on 410S?
Passivate or electropolish after pickling; takes a good bright polish but must be kept dry — no anodizing, and painting or plating is used for outdoor/chloride exposure.
410S 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 |
|---|---|---|
| Clow carbon keeps the grade essentially non-hardening | ≤ 0.08 | 0.05 |
| Si | ≤ 1 | 0.5 |
| Mn | ≤ 1 | 0.6 |
| P | ≤ 0.04 | — |
| S | ≤ 0.03 | — |
| Cr | 11.5 – 13.5 | 12.5 |
| Niresidual limit per ASTM A240 | ≤ 0.6 | 0.3 |
| Fe | balance | — |
410S CR 2B — frequently asked
What is 410S CR 2B used for?
410S CR 2B is typically used for welded petroleum equipment, industrial valves, refinery tower linings and trays, pressure-vessel cladding, heat exchanger baffles and supports and furnace parts and annealing boxes. In short: lower-carbon martensitic sheet.
What is the yield strength of 410S CR 2B?
410S CR 2B has a typical yield strength of 280 MPa (40.6 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 75% of stainless steel grades. Strength varies by condition: see the 3 listed tempers.
Is 410S CR 2B easy to machine?
Reasonably — machinability is rated fair (50/100, better than 90% of stainless steel grades). Machines like a soft 12Cr stainless (~60 % of 1212): use rigid setups, sharp positive-rake carbide, moderate speed with heavy flood coolant to avoid gumming and work-hardened skins.
Can 410S CR 2B be welded?
Yes — weldability is rated very good (70/100). Readily welded by GTAW/GMAW/SMAW with 309L or matching filler; 150–250 °C preheat plus 700–760 °C post-weld anneal is recommended on thick sections to restore HAZ ductility.
What surface finishes work on 410S CR 2B?
Passivate or electropolish after pickling; takes a good bright polish but must be kept dry — no anodizing, and painting or plating is used for outdoor/chloride exposure.
Can 410S CR 2B be formed, bent or molded?
Cold forms and roll-bends adequately but with higher springback and less stretch than 304; allow generous bend radii and avoid severe deep drawing.
What is the maximum service temperature of 410S CR 2B?
410S CR 2B is rated for continuous use to about 700°C (1,292 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in 410S CR 2B?
Yes — 410S CR 2B is available for CNC machining and sheet metal; every part is priced by an engineer rather than instantly. Upload a STEP file to get a price and a DFM check.
Sources
- ASTM A240/A240M — Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip — ASTM (2023)
- ASTM A276/A479 — Stainless Steel Bars and Shapes — ASTM (2023)
- EN 10088-2 (X6Cr13, 1.4000) — CEN (2014)
- GB/T 4237 / GB/T 1220 (06Cr13) — SAC (2015)
- ASM Specialty Handbook: Stainless Steels — ASM International (1994)
- 410S stainless steel data sheets (Outokumpu, AK Steel/Cleveland-Cliffs, TISCO) — various mills (2023)
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.