410 Stainless Steel (UNS S41000)
Martensitic · ASTM A240/A240M, A276 · Density 7.74 g/cm³
Type 410 (UNS S41000) is a 12% chromium martensitic stainless steel that can be hardened by heat treatment to above 40 HRC. It combines moderate corrosion resistance with high strength and wear resistance, and is used for valves, pump shafts, fasteners and cutlery.
Quotation brief
Quote 410 When
Quote 410 when a component needs a martensitic stainless route with moderate chromium content and a qualified hardening-and-tempering cycle. It is considered for shafts, valve and pump parts, fasteners, cutlery and turbine hardware where the drawing states condition, target hardness, toughness, dimensions and environment. The grade name does not guarantee a hardness value, corrosion life or weld procedure because section and thermal history govern the finished result.
Best fit
- Shafts, valve components and fasteners designed around a specified hardened-and-tempered condition and final machining allowance.
- Cutlery, wear and turbine parts whose required hardness, toughness, surface finish and exposure have been validated by the responsible engineer.
- Orders naming UNS S41000 under the correct flat-product or bar standard with traceable heat chemistry and delivery condition.
Limits to check
- 410 is not a corrosion substitute for 304 or 316 in chloride, continuously wet or aggressive chemical service without project evidence.
- Hardness and toughness vary with austenitizing, quench, temper, section and prior structure, so a grade-only hardness request is incomplete.
- Welding can form hard brittle zones and needs preheat, restraint control and post-weld treatment defined by a qualified procedure.
Quoted product forms
Quoted product forms for 410 Stainless Steel (UNS S41000)
We quote 410 Stainless Steel as sheet / plate, coil / strip, bar against the named product standard.
- Traceability: heat or lot identity plus the inspection document named in the RFQ (EN 10204 3.1 when that route supports it).
- Processing: decoiling, cutting, polishing, shearing and beveling as ordered.
- Next step: send product form, size and quantity; we quote the supply route.
Chemical Composition (wt%)
| C | Mn | Si | Cr | Ni | P | S |
|---|---|---|---|---|---|---|
| 0.08–0.15 | ≤1.00 | ≤1.00 | 11.5–13.5 | ≤0.75 | ≤0.040 | ≤0.030 |
Single values are maximums unless a range is shown. Balance: Fe. Per ASTM A240/A240M, A276.
Mechanical Properties
| Tensile strength (annealed) | ≥450 MPa (65 ksi) |
|---|---|
| Yield strength (annealed) | ≥205 MPa (30 ksi) |
| Elongation (50 mm) | ≥20% |
| Hardness (hardened + tempered) | up to ≈40–45 HRC |
Room-temperature minimum values are summarized for annealed flat product under ASTM A240/A240M, A276 unless a condition is named in the property label; product form and thickness can change the requirement.
Physical Properties & Structure
| Density | 7.74 g/cm³ |
|---|---|
| Magnetic response | Magnetic in annealed and hardened conditions. |
| Microstructure | Martensitic |
Corrosion Resistance & Limits
- 410 develops useful passive behavior only when chemistry, hardening condition and surface are controlled; it normally offers less wet-corrosion margin than common 304-type austenitic stainless steel.
- Fresh water, condensate, chlorides, tempering temperature, heat tint, grinding contamination and crevices must be reviewed for the finished valve, shaft or blade geometry.
Fabrication & Heat Treatment
| Welding | Welding needs a section-specific preheat, low-hydrogen practice, filler choice and post-weld heat treatment because untempered martensite and restraint can create hard cracking. |
|---|---|
| Forming | Complete substantial forming in the annealed condition, then account for reduced ductility, springback and distortion through the final hardening and tempering route. |
| Machining | Rough-machine in the annealed condition where practical, retain allowance for heat-treatment movement and final grinding, and qualify tooling for the delivered hardness. |
| Heat treatment | Austenitizing, quench severity, section size and tempering temperature set the final hardness-toughness balance; the heat treater must qualify the exact part route. |
Equivalent Grades
The closest international equivalents of 410 Stainless Steel are 1.4006 (X12Cr13) in the EN system, SUS410 in the JIS system, 12Cr13 in the GB system.
These are common corresponding designations, not unconditional substitutes. Verify chemistry, mechanical properties, product standard, delivery condition, dimensions and project approval before changing designation.
| System | Designation |
|---|---|
| UNS | S41000 |
| EN | 1.4006 (X12Cr13) |
| JIS | SUS410 |
| GB | 12Cr13 |
Ordering Checks for 410
- State UNS S41000, governing ASTM product standard, form, dimensions, annealed or heat-treated condition and required finish.
- Define target hardness range, toughness or impact need, section size, final dimensions and whether heat treatment occurs before or after machining.
- Provide service fluid, temperature, chlorides, cleaning and surface requirements together with any welding, grinding or passivation sequence.
- Request inspection documentation for heat chemistry, delivered condition, mechanical or hardness tests, dimensions and heat-treatment traceability.
Reference Product Forms & Dimensional Ranges
Common reference product forms for 410 stainless steel: Sheet / Plate, Coil / Strip, Bar.
| Finishes | No.1, 2B, bright bar |
|---|---|
| Sheet / coil thickness | 0.3–3.0 mm |
| Bar diameter | 6–200 mm |
Common surface and delivery options
- No.1, 2B, BA or mechanically polished finish when supported by the product route
- Hot rolled, peeled, bright drawn, ground or polished bar condition according to tolerance
These published ranges are engineering references, not a live-stock or production-capability promise. Send the required product form, dimensions, condition and finish; we quote the matching supply route.
Browse related product hubs:Sheet & plate,Coil & strip,Pipe & tube,Bar & rod.
Typical Applications
- Valve and pump components
- Shafts and fasteners
- Cutlery and blades
- Steam and gas turbine parts
410 Compared With Other Grades
Frequently Asked Questions
Is 410 stainless steel magnetic?
Yes. 410 is martensitic (ferromagnetic) in all conditions — annealed, hardened or tempered. Magnetism is normal and does not indicate a defect.
How hard can 410 be heat treated?
Oil quenching from about 980–1010 °C and tempering can bring 410 to roughly 40–45 HRC depending on section size and tempering temperature, with a matching jump in tensile strength.
How does 410 corrosion resistance compare with 304?
Noticeably lower — 410 has ~12% chromium and no nickel. It handles mild atmospheres, fresh water and food-adjacent dry service, but stains in coastal or chemical exposure where 304/316 would be fine.
Published by Tsingshan (Shandong) Iron & Steel Co., Ltd..Sources, update policy and technical limitations.
Quote request
Get a 410 Stainless Steel Quotation
Send the product, grade and quantity you already have. We will complete the specification and quote the supply route.