Stainless Steel S20432 Full Hard
Supply condition
UNS S20432
Maximum strength/spring temper strip; forming limited to very gentle radii, no deep drawing.
Values for the Full 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 |
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 |
Full HardThis page 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 Full Hard?
S20432 Full Hard is S20432 supplied in the Full Hard condition — maximum strength/spring temper strip; forming limited to very gentle radii, no deep drawing. S20432 Full Hard has a yield strength of 1,030 MPa (149 ksi) and a tensile strength of 1,320 MPa (191 ksi) — stronger than 98% of stainless steel grades. Elongation at break is 6% and the elastic modulus is 197 GPa (28.6 Msi). S20432 Full 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; Full Hard is available on request or by drawing note.
Advantages
- High strength — 1,030 MPa (149 ksi), better than 98% of stainless steel grades
Limitations
- Limited ductility — 6%, worse than 99% of stainless steel grades
- Needs corrosion protection — 40/100, worse than 93% of stainless steel grades
- Limited service temperature — 300°C (572 °F), worse than 90% of stainless steel grades
- Limited formability — 20/100, worse than 86% of stainless steel grades
- Difficult to weld — 50/100, worse than 77% of stainless steel grades
S20432 Full Hard properties
Typical room-temperature values for S20432 Full Hard; 11 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 Full 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 Full Hard has a yield strength of 1,030 MPa (149 ksi) and a tensile strength of 1,320 MPa (191 ksi) — stronger than 98% of stainless steel grades. Elongation at break is 6% and the elastic modulus is 197 GPa (28.6 Msi).
Thermal6
S20432 Full Hard is rated for continuous service to 300°C (572 °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 Full Hard conducts electricity at 2.5 % IACS, better than 75% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is fair (40/100), worse than 93% of stainless steel grades.
Sustainability4
Producing a kilogram of S20432 Full 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 Full Hard's machinability is fair (42/100, better than 79% of stainless steel grades); weldability fair (50/100); formability poor (20/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with S20432 Full 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 Full Hard — frequently asked
What is S20432 Full Hard used for?
S20432 Full 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 Full Hard?
S20432 Full Hard has a typical yield strength of 1,030 MPa (149 ksi) and a tensile strength of 1,320 MPa (191 ksi) — stronger than 98% of stainless steel grades. Strength varies by condition: see the 7 listed tempers.
Is S20432 Full Hard easy to machine?
Not especially — machinability is rated fair (42/100, better than 79% 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 Full Hard be welded?
With care — weldability is rated fair (50/100). 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 Full 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 Full 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 Full Hard?
S20432 Full Hard is rated for continuous use to about 300°C (572 °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.