Stainless Steel 202
AISI/SAE 202 · UNS S20200 · EN 1.4373 · JIS SUS202 · GB 12Cr18Mn9Ni5
202 (UNS S20200, SUS202) is a manganese–nickel austenitic stainless steel from the 2xx family, using Mn and N to replace part of the nickel of 301/304.
Values for the Annealed condition
202 tempers and conditions
202 is supplied in 8 conditions, soft to hard. Annealed is the default FabDigit quotes; the values on this page are for it.
Compare all 8 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
plate and heavy sheet | Heavy-gauge plate/coil condition for fabricated structures where surface appearance is not critical. | 330 | 640 | 52 | 180 HB | 2.5 % IACS |
AnnealedDefault solution annealed (1050–1100 °C, water quenched) | Standard stocked condition: softest, most formable and most corrosion-resistant state for deep drawing and welding. | 345 | 655 | 55 | 190 HB | — |
Lightly cold worked strip | Slight stiffening for panels and trim while keeping most of the annealed formability. | 415 | 760 | 35 | 20 HRC | 2.5 % IACS |
cold-rolled and skin-passed strip/sheet (light temper) | General cold-rolled 2B/BA decorative sheet and tube strip: slightly higher strength and better surface than hot-rolled annealed. | 420 | 720 | 45 | 215 HB | 2.5 % IACS |
Quarter hard | Springy trim, clamps and light structural strip that still tolerates moderate bending. | 550 | 900 | 25 | 25 HRC | 2.5 % IACS |
Half hard | High-strength strip for springs, brackets and formed sections where only gentle bends are needed. | 790 | 1,070 | 15 | 32 HRC | 2.5 % IACS |
Three-quarter hard | Near-maximum strength strip for flat springs and wear strips with minimal forming. | 960 | 1,240 | 10 | 37 HRC | 2.5 % IACS |
fully cold-rolled strip (ASTM A666 temper) | Maximum strength/hardness flat product for shims, springs and blanked parts with no bending. | 1,000 | 1,310 | 8 | 40 HRC | 2.5 % IACS |
What is 202?
202 (UNS S20200, SUS202) is a manganese–nickel austenitic stainless steel from the 2xx family, using Mn and N to replace part of the nickel of 301/304. It is used as a low-cost substitute in decorative and non-critical structural work, supplied as hot-rolled annealed plate, annealed sheet and cold-rolled strip in 1/8 through full hard tempers, with 345 MPa yield, 655 MPa tensile, 55 % elongation and a formability score of 80. Corrosion resistance (score 55) sits below 304 and it is not suited to chloride or marine exposure; specify 304 where staining is unacceptable. 202 has a density of 7.8 g/cm³ (0.282 lb/in³), heavier than 50% of stainless steel grades. It melts at 1,400°C (2,552 °F). 202 has a yield strength of 345 MPa (50 ksi) and a tensile strength of 655 MPa (95 ksi) — weaker than 54% of stainless steel grades. Elongation at break is 55% and the elastic modulus is 197 GPa (28.6 Msi).
What is 202 used for?
- Restaurant equipment
- Architectural trim
- Sinks
Advantages
- Ductile — tolerates forming and impact — 55%, better than 97% of stainless steel grades
- Forms and bends easily — 80/100, better than 93% of stainless steel grades
- Low embodied carbon — 3.4 kg CO₂/kg, better than 91% of stainless steel grades
- Polishes to a fine finish — 80/100, better than 89% of stainless steel grades
202 properties
Typical room-temperature values for 202-Annealed; bars are the position among stainless steel grades.
Physical3
202 has a density of 7.8 g/cm³ (0.282 lb/in³), heavier than 50% of stainless steel grades. It melts at 1,400°C (2,552 °F).
Mechanical15
202 has a yield strength of 345 MPa (50 ksi) and a tensile strength of 655 MPa (95 ksi) — weaker than 54% of stainless steel grades. Elongation at break is 55% and the elastic modulus is 197 GPa (28.6 Msi).
Thermal6
202 is rated for continuous service to 760°C (1,400 °F). It conducts heat at 16.2 W/m·K (9.36 BTU/hr·ft·°F), better than 64% of stainless steel grades. Thermal expansion is 17.5 µm/m·K (9.72 µin/in·°F).
Electrical3
202 conducts electricity at 2.5 % IACS, better than 75% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is good (55/100), worse than 71% of stainless steel grades.
Sustainability4
Producing a kilogram of 202 takes about 45 MJ of energy and emits 3.4 kg of CO₂ — less than 91% of stainless steel grades. Typical recycled content is 65%.
Manufacturability8
202's machinability is fair (38/100, better than 63% of stainless steel grades); weldability good (65/100); formability very good (80/100).
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. 202 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 202
Is 202 easy to machine?
Gummy and strongly work-hardening — use rigid setups, positive-rake sharp carbide, heavy feed with no dwell and copious coolant; roughly 40 % of 1212 free-cutting rate.
Can 202 be welded?
Weldable by GTAW/GMAW/resistance methods with 308L or 309L filler; keep heat input low, avoid 425–815 °C dwell to limit sensitization, and back-purge tube welds.
Can 202 be formed, bent or molded?
Excellent deep-draw and roll-form behaviour but a high work-hardening rate — allow extra press tonnage, generous bend radii and interstage annealing for severe draws.
Manufacturability
The process limits FabDigit applies to 202. Every 202 part is priced by an engineer; design inside these and the quote comes back without a redesign loop.
CNC machining
| Machinability | Fair38 / 100 |
|---|---|
| ISO material group | M.1 |
| Cutting speed (rough / finish) | 150 / 180 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 | Excellent80 / 100 |
|---|---|
| Weldability | Excellent65 / 100 |
| Bendable | Yes |
202 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 |
|---|---|---|
| CASTM A240 max | ≤ 0.15 | 0.08 |
| Mnaustenite stabilizer replacing Ni | 7.5 – 10 | 8.75 |
| Si | ≤ 1 | 0.5 |
| P | ≤ 0.06 | 0.03 |
| S | ≤ 0.03 | 0.01 |
| Cr | 17 – 19 | 18 |
| Ni | 4 – 6 | 5 |
| N | ≤ 0.25 | 0.15 |
| Fe | balance |
What surface finishes work on 202?
Takes No.4 brushed and No.8 mirror polish well and accepts PVD colour coating; passivate or electropolish after fabrication, and do not anodize.
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 202 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- S20200
- EN / DIN / Werkstoff-Nr.
- 1.4373
- GB (China)
- 12Cr18Mn9Ni5
- JIS
- SUS202
How much does 202 cost?
202 is a premium-cost stainless steel ($$$), cheaper than about 58% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
202 — frequently asked
What is 202 used for?
202 is typically used for restaurant equipment, architectural trim and sinks. In short: manganese-nickel austenitic stainless.
What is the yield strength of 202?
202 has a typical yield strength of 345 MPa (50 ksi) and a tensile strength of 655 MPa (95 ksi) — weaker than 54% of stainless steel grades. Strength varies by condition: see the 8 listed tempers.
Is 202 easy to machine?
Not especially — machinability is rated fair (38/100, better than 63% of stainless steel grades). Gummy and strongly work-hardening — use rigid setups, positive-rake sharp carbide, heavy feed with no dwell and copious coolant; roughly 40 % of 1212 free-cutting rate.
Can 202 be welded?
Yes — weldability is rated good (65/100). Weldable by GTAW/GMAW/resistance methods with 308L or 309L filler; keep heat input low, avoid 425–815 °C dwell to limit sensitization, and back-purge tube welds.
What surface finishes work on 202?
Takes No.4 brushed and No.8 mirror polish well and accepts PVD colour coating; passivate or electropolish after fabrication, and do not anodize.
Can 202 be formed, bent or molded?
Excellent deep-draw and roll-form behaviour but a high work-hardening rate — allow extra press tonnage, generous bend radii and interstage annealing for severe draws.
What is the maximum service temperature of 202?
202 is rated for continuous use to about 760°C (1,400 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does 202 cost?
202 is a premium-cost stainless steel ($$$), cheaper 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 202?
Yes — 202 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 International (2023)
- ASTM A666 — Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate and Flat Bar — ASTM International (2015)
- JIS G 4305 (SUS202) — JSA (2021)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
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.