202 Stainless Steel (UNS S20200)
Austenitic (Cr-Mn) · ASTM A240/A240M · Density 7.8 g/cm³
Type 202 (UNS S20200) is a chromium-manganese austenitic stainless steel in which manganese and nitrogen replace part of the nickel used in 304. It work-hardens rapidly and is evaluated for indoor trim, appliance parts, utensils and other applications where the actual moisture, cleaning and chloride exposure have been defined.
Quotation brief
Quote 202 When
Quote 202 for indoor or otherwise controlled exposure after the buyer has defined the forming route and appearance acceptance criteria. Its chromium-manganese-nickel chemistry and rapid work hardening can suit trim, appliance and utensil components, but the grade must not be treated as a universal commercial or corrosion substitute for 304. Humidity, chlorides, cleaning chemistry, cold reduction and final surface condition remain part of the decision.
Best fit
- Indoor trim, appliance panels and formed components with documented humidity, cleaning and appearance requirements.
- Cold-formed sheet or coil parts where the buyer can validate draw severity, springback, work hardening and final finish on the actual gauge.
- Orders naming UNS S20200 under the governing product standard with traceable chemistry, annealed condition and inspection documentation.
Limits to check
- 202 is not an unconditional equivalent to 304; the different nickel, manganese and nitrogen ranges change forming and environmental behavior.
- Coastal, continuously wet, chloride-cleaned or crevice-prone service requires project evidence and may call for a different approved alloy.
- The grade designation alone does not establish food-contact compliance, migration performance, finish quality or sanitation suitability for a finished article.
Quoted product forms
Quoted product forms for 202 Stainless Steel (UNS S20200)
We quote 202 Stainless Steel as sheet / plate, coil / strip, pipe / tube 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 | N | P | S |
|---|---|---|---|---|---|---|---|
| ≤0.15 | 7.5–10.0 | ≤1.00 | 17.0–19.0 | 4.0–6.0 | ≤0.25 | ≤0.060 | ≤0.030 |
Single values are maximums unless a range is shown. Balance: Fe. Per ASTM A240/A240M.
Mechanical Properties
| Tensile strength | ≥620 MPa (90 ksi) |
|---|---|
| Yield strength (0.2%) | ≥310 MPa (45 ksi) |
| Elongation (50 mm) | ≥40% |
| Hardness | ≤241 HBW |
Room-temperature minimum values are summarized for annealed flat product under ASTM A240/A240M unless a condition is named in the property label; product form and thickness can change the requirement.
Physical Properties & Structure
| Density | 7.8 g/cm³ |
|---|---|
| Magnetic response | Essentially non-magnetic after solution annealing; cold work can introduce a measurable magnetic response. |
| Microstructure | Austenitic (Cr-Mn) |
Corrosion Resistance & Limits
- General corrosion resistance comes from the chromium-rich passive film; nickel, molybdenum, nitrogen and copper change performance by grade.
- Check chlorides, temperature, crevices, deposits, process chemistry and cleaning conditions. A grade designation alone is not a service-life guarantee.
Fabrication & Heat Treatment
| Welding | Generally weldable with a qualified procedure and matching or over-alloyed filler where required; remove heat tint when corrosion service demands it. |
|---|---|
| Forming | Good ductility is typical, but rapid work hardening increases forming load and springback; bend radius and intermediate annealing depend on grade and reduction. |
| Machining | Use rigid tooling, positive feeds and controlled heat because the material work-hardens; free-machining grades require separate corrosion and welding review. |
| Heat treatment | Solution annealing and rapid cooling restore the intended condition where applicable. Austenitic grades are not hardened by conventional quench-and-temper treatment. |
Equivalent Grades
The closest international equivalents of 202 Stainless Steel are 1.4373 (X12CrMnNiN18-9-5) in the EN system, SUS202 in the JIS system, 12Cr18Mn9Ni5N 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 | S20200 |
| EN | 1.4373 (X12CrMnNiN18-9-5) |
| JIS | SUS202 |
| GB | 12Cr18Mn9Ni5N |
Ordering Checks for 202
- State UNS S20200, ASTM A240/A240M edition, product form, thickness, width, annealed condition and required finish.
- Define indoor or outdoor exposure, humidity, chlorides, cleaning chemicals, drainage and appearance acceptance before requesting a comparison grade.
- Provide drawing direction, reduction, bend radius, draw depth, weld procedure and any intermediate anneal or polishing sequence.
- Request the required inspection document and verify heat chemistry, tensile properties, dimensions, surface condition and heat traceability against the order.
Reference Product Forms & Dimensional Ranges
Common reference product forms for 202 stainless steel: Sheet / Plate, Coil / Strip, Pipe / Tube.
| Finishes | 2B, BA, No.4, hairline |
|---|---|
| Sheet / coil thickness | 0.3–3.0 mm |
| Common widths | 1000 / 1219 / 1500 mm |
Common surface and delivery options
- No.1, 2B, BA or mechanically polished finish when supported by the product route
- Annealed and pickled, descaled or polished tube finish as specified
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
- Cookware and kitchen utensils
- Home appliance panels and drums
- Indoor architectural trim and railings
- Hose clamps and fasteners
- Budget furniture tube
Frequently Asked Questions
What is the difference between 202 and 304 stainless steel?
202 replaces part of the nickel range used in 304 with manganese and nitrogen. The resulting chemistry changes work hardening and corrosion behavior. Compare the ordered chemistry, finish, forming route and actual humidity or chloride exposure instead of treating either grade as a universal substitute.
Is 202 stainless steel rust proof?
It resists rust in dry indoor environments and with normal cleaning. In humid, coastal or polluted atmospheres it can develop surface staining faster than 304. If the part will see weather or chlorides, specify 304 or better.
Is 202 stainless steel food safe?
A food-contact decision cannot be made from the 202 designation alone. The finished article, surface condition, cleaning chemicals, applicable food-contact regulation and migration or hygiene requirements must be reviewed by the responsible manufacturer before approval.
Published by Tsingshan (Shandong) Iron & Steel Co., Ltd..Sources, update policy and technical limitations.
Quote request
Get a 202 Stainless Steel Quotation
Send the product, grade and quantity you already have. We will complete the specification and quote the supply route.