Stainless Steel S20432-1/8 Hard
Supply condition
UNS S20432
1/8 Hard = cold rolled temper
Mild temper rolling for flat, springy panels that still tolerate light bending.
Values for the 1/8 Hard condition
Other S20432 tempers and conditions
S20432 is listed in 7 conditions; see the grade overview at S20432.
Compare all 7 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AnnealedDefault solution/bright annealed sheet & coil (2B, BA, No.1) | Default stocked condition: maximum ductility for deep drawing, roll forming and welding. | 370 | 745 | 50 | 195 HB | — |
Lightly cold rolled | Slight strength/stiffness gain while keeping near-annealed formability for shallow-formed panels. | 400 | 690 | 42 | 13 HRC | 2.5 % IACS |
1/8 HardThis page Cold rolled temper | Mild temper rolling for flat, springy panels that still tolerate light bending. | 450 | 760 | 35 | 17 HRC | 2.5 % IACS |
Quarter hard | Common structural temper for clamps, brackets and roll-formed profiles needing higher yield. | 620 | 930 | 28 | 25 HRC | — |
Half hard | High-yield strip for springy clips, bands and stiff thin-gauge structures with only light bends. | 830 | 1,100 | 16 | 32 HRC | 2.4 % IACS |
Three-quarter hard | Near-maximum strength strip for flat springs and highly loaded thin sections. | 990 | 1,250 | 9 | 38 HRC | 2.4 % IACS |
heavily cold rolled | Maximum strength/spring temper strip; forming limited to very gentle radii, no deep drawing. | 1,030 | 1,320 | 6 | 41 HRC | — |
What is S20432-1/8 Hard?
S20432-1/8 Hard is S20432 supplied in the 1/8 Hard condition — mild temper rolling for flat, springy panels that still tolerate light bending. S20432-1/8 Hard has a yield strength of 450 MPa (65.3 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 70% of stainless steel grades. Elongation at break is 35% and the elastic modulus is 197 GPa (28.6 Msi). S20432-1/8 Hard 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). Annealed is the default condition FabDigit quotes; 1/8 Hard is available on request or by drawing note.
Advantages
- Easy to machine — 46/100, better than 87% of stainless steel grades
Limitations
- Needs corrosion protection — 39/100, worse than 94% of stainless steel grades
- Limited service temperature — 400°C (752 °F), worse than 78% of stainless steel grades
S20432-1/8 Hard properties
Typical room-temperature values for S20432-1/8 Hard; 22 are specific to this condition. Other listed values are S20432 reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
S20432-1/8 Hard 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).
Mechanical14
S20432-1/8 Hard has a yield strength of 450 MPa (65.3 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 70% of stainless steel grades. Elongation at break is 35% and the elastic modulus is 197 GPa (28.6 Msi).
Thermal6
S20432-1/8 Hard is rated for continuous service to 400°C (752 °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 15.7 µm/m·K (8.72 µin/in·°F).
Electrical3
S20432-1/8 Hard conducts electricity at 2.5 % IACS, better than 75% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is fair (39/100), worse than 94% of stainless steel grades.
Sustainability4
Producing a kilogram of S20432-1/8 Hard takes about 45 MJ of energy and emits 4 kg of CO₂ — less than 91% of stainless steel grades. Typical recycled content is 55%.
Manufacturability7
S20432-1/8 Hard's machinability is fair (46/100, better than 87% of stainless steel grades); weldability good (66/100); formability good (65/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with S20432-1/8 Hard
Is S20432 easy to machine?
Work-hardens fast and runs gummy — use rigid setups, sharp positive-rake carbide, heavy constant feed, no dwelling, and flood coolant; expect ~45 % of AISI 1212 rates.
Can S20432 be welded?
Weldable by GTAW/GMAW/resistance spot with 308L or 307/Cr-Mn fillers; keep heat input low, no preheat, back-purge for appearance, and avoid sensitising holds if the higher-carbon variant is used.
Can S20432 be formed, bent or molded?
Excellent stretch/deep-draw behaviour in the annealed temper but high springback and forming loads; allow ~15–25 % more press tonnage than 304 and use interstage anneals for severe multi-stage draws.
What surface finishes work on S20432?
Takes No.4 brushed and mirror polish well and accepts PVD colour coating; passivate after fabrication and expect earlier rust staining than 304 outdoors — do not anodize.
S20432 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 variants (≤0.03) supplied as 'L' modification | ≤ 0.15 | 0.08 |
| Si | ≤ 1 | 0.5 |
| MnMn substitutes for Ni as austenite stabiliser; mill practice varies widely | 5.5 – 9.5 | 7.5 |
| P | ≤ 0.06 | 0.04 |
| S | ≤ 0.03 | 0.01 |
| Crwide band across mills; check certificate | 14 – 17.5 | 16 |
| Nideliberately reduced vs 304 | 1 – 4.5 | 2.5 |
| Cuadded in Cu-bearing (204Cu-type) modifications to improve drawability | ≤ 3 | 1.5 |
| Nstrengthens and stabilises austenite | ≤ 0.25 | 0.12 |
| Fe | balance | — |
S20432-1/8 Hard — frequently asked
What is S20432-1/8 Hard used for?
S20432-1/8 Hard is typically used for structural sheet, railings and automotive trim. In short: cost-lean 201-family sheet; good draw, high springback; indoor or coated service.
What is the yield strength of S20432-1/8 Hard?
S20432-1/8 Hard has a typical yield strength of 450 MPa (65.3 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 70% of stainless steel grades. Strength varies by condition: see the 7 listed tempers.
Is S20432-1/8 Hard easy to machine?
Reasonably — machinability is rated fair (46/100, better than 87% of stainless steel grades). Work-hardens fast and runs gummy — use rigid setups, sharp positive-rake carbide, heavy constant feed, no dwelling, and flood coolant; expect ~45 % of AISI 1212 rates.
Can S20432-1/8 Hard be welded?
Yes — weldability is rated good (66/100). Weldable by GTAW/GMAW/resistance spot with 308L or 307/Cr-Mn fillers; keep heat input low, no preheat, back-purge for appearance, and avoid sensitising holds if the higher-carbon variant is used.
What surface finishes work on S20432-1/8 Hard?
Takes No.4 brushed and mirror polish well and accepts PVD colour coating; passivate after fabrication and expect earlier rust staining than 304 outdoors — do not anodize.
Can S20432-1/8 Hard be formed, bent or molded?
Excellent stretch/deep-draw behaviour in the annealed temper but high springback and forming loads; allow ~15–25 % more press tonnage than 304 and use interstage anneals for severe multi-stage draws.
What is the maximum service temperature of S20432-1/8 Hard?
S20432-1/8 Hard is rated for continuous use to about 400°C (752 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- ASTM A666 — Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate and Flat Bar — ASTM International (2015)
- ASTM A240/A240M — Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip — ASTM International (2023)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys (Cr-Mn austenitic stainless) — ASM International (1990)
- Low-nickel Cr-Mn austenitic (201 / 204Cu-type) stainless sheet datasheets — Outokumpu / Jindal Stainless / Chinese 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.