Stainless Steel 410S
AISI/SAE 410S · UNS S41008 · EN 1.4000 · JIS SUS410S
410S is a low-carbon version of Type 410 (UNS S41008, 1.4000, SUS410S) in which the reduced carbon keeps the structure ferrite-dominant and effectively non-hardening on cooling, so welds and heat-affected zones stay ductile.
Values for the Annealed condition
410S tempers and conditions
410S is supplied in 3 conditions, soft to hard. Annealed is the default FabDigit quotes; the values on this page are for it.
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 | — |
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 | — |
Supply forms, finishes and certifications
Ways 410S 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 cold rolled strip | Surface finish |
HRAP | Hot rolled, annealed and pickled plate | Surface finish |
What is 410S?
410S is a low-carbon version of Type 410 (UNS S41008, 1.4000, SUS410S) in which the reduced carbon keeps the structure ferrite-dominant and effectively non-hardening on cooling, so welds and heat-affected zones stay ductile. Annealed material gives 265 MPa yield, 460 MPa tensile, 30 % elongation and 150 HB (80 HRB) with service to 700 °C, available as HRAP plate, cold-rolled 2B and BA sheet and cold-drawn bar. It cannot be strengthened by hardening, resists only mild atmospheres and fresh water and rusts in chlorides; use 410 when hardness is required or 409 for stabilized exhaust-type service. 410S 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). 410S has a yield strength of 265 MPa (38.4 ksi) and a tensile strength of 460 MPa (66.7 ksi) — weaker than 81% of stainless steel grades. Elongation at break is 30% and the elastic modulus is 200 GPa (29 Msi).
What is 410S used for?
- Welded petroleum equipment
- Industrial valves
- Refinery tower linings and trays
- Pressure-vessel cladding
- Heat exchanger baffles and supports
- Furnace parts and annealing boxes
- Ore and coal handling chutes
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 — 45/100, worse than 85% of stainless steel grades
- Low strength — 265 MPa (38.4 ksi), worse than 81% of stainless steel grades
410S properties
Typical room-temperature values for 410S-Annealed; bars are the position among stainless steel grades.
Physical3
410S 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 has a yield strength of 265 MPa (38.4 ksi) and a tensile strength of 460 MPa (66.7 ksi) — weaker than 81% of stainless steel grades. Elongation at break is 30% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
410S 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 conducts electricity at 3 % IACS, better than 95% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is fair (45/100), worse than 85% of stainless steel grades.
Sustainability4
Producing a kilogram of 410S 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's machinability is fair (50/100, better than 90% of stainless steel grades); weldability very good (70/100); formability good (60/100).
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. 410S is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 410S
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.
Manufacturability
The process limits FabDigit applies to 410S. Every 410S part is priced by an engineer; design inside these and the quote comes back without a redesign loop.
CNC machining
| Machinability | Better50 / 100 |
|---|---|
| ISO material group | M.4 |
| Cutting speed (rough / finish) | 140 / 170 m/min |
| Minimum wall | 0.8 mm |
| Minimum internal radius | 1.5 mm |
| Drill depth limit | 4× diameter |
| Best surface (machined / polished) | Ra 1.6 / — |
| Hardenable after machining | No |
Sheet metal
| Formability | Better60 / 100 |
|---|---|
| Weldability | Fair70 / 100 |
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 |
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.
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).
Plating
Organic Coating
CVD Coating
Black / Phosphate
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Stainless Steel 410S in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- S41008
- EN / DIN / Werkstoff-Nr.
- 1.4000
- JIS
- SUS410S
How much does 410S cost?
410S is a premium-cost stainless steel ($$$), pricier than about 58% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
410S — frequently asked
What is 410S used for?
410S is typically used for welded petroleum equipment, industrial valves, refinery tower linings and trays, pressure-vessel cladding, heat exchanger baffles and supports and furnace parts and annealing boxes. In short: lower-carbon martensitic sheet.
What is the yield strength of 410S?
410S has a typical yield strength of 265 MPa (38.4 ksi) and a tensile strength of 460 MPa (66.7 ksi) — weaker than 81% of stainless steel grades. Strength varies by condition: see the 3 listed tempers.
Is 410S easy to machine?
Reasonably — machinability is rated fair (50/100, better than 90% of stainless steel grades). Machines like a soft 12Cr stainless (~60 % of 1212): use rigid setups, sharp positive-rake carbide, moderate speed with heavy flood coolant to avoid gumming and work-hardened skins.
Can 410S be welded?
Yes — weldability is rated very good (70/100). Readily welded by GTAW/GMAW/SMAW with 309L or matching filler; 150–250 °C preheat plus 700–760 °C post-weld anneal is recommended on thick sections to restore HAZ ductility.
What surface finishes work on 410S?
Passivate or electropolish after pickling; takes a good bright polish but must be kept dry — no anodizing, and painting or plating is used for outdoor/chloride exposure.
Can 410S be formed, bent or molded?
Cold forms and roll-bends adequately but with higher springback and less stretch than 304; allow generous bend radii and avoid severe deep drawing.
What is the maximum service temperature of 410S?
410S is rated for continuous use to about 700°C (1,292 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does 410S cost?
410S is a premium-cost stainless steel ($$$), pricier than about 58% 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.
Can FabDigit make parts in 410S?
Yes — 410S 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; 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.