ISO 16143-1
Technical delivery requirements for corrosion-resistant stainless steel flat products for general purposes.
Corrosion-resistant stainless steel
Technical delivery requirements for corrosion-resistant stainless steel flat products for general purposes.
Data edition: ISO 16143-1:2014
Material requirements. Defined by product form.
Technical delivery requirements for corrosion-resistant stainless steel flat products for general purposes.
Table 1 chemistry from ISO 16143-1:2014. Room-temperature Tables 4 and 5 are cross-checked using the PSQCA adoption PS-ISO 16143-1:2015. Duplex 2205 and S31803 use the same ISO designation here; this is not a claim of UNS S32205 equivalence.
Find your material grade
12 material references with ISO 16143-1 data.
ISO 16143-1 properties
Select a table to compare requirements.
| Grade / designation | C | Si | Mn | P | S | Cr | Ni | Mo | N | Other elements |
|---|---|---|---|---|---|---|---|---|---|---|
| SS304 4301-304-00-I | ≤0.07 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 17.5–19.5 | 8.0–10.5 | — | ≤0.10 | — |
| SS304L 4307-304-03-I | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 17.5–19.5 | 8.0–10.0 | — | ≤0.10 | — |
| SS316 4401-316-00-I | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.0–18.0 | 10.0–13.0 | 2.00–3.00 | ≤0.10 | — |
| SS316L 4404-316-03-I | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.5–18.5 | 10.0–13.0 | 2.00–3.00 | ≤0.10 | — |
| SS317L 4438-317-03-I | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 17.5–20.0 | 12.0–15.0 | 3.0–4.0 | ≤0.10 | — |
| SS321 4541-321-00-I | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 17.0–19.0 | 9.0–12.0 | — | — | Ti: 5 × C to 0.70 |
| SS347 4550-347-00-I | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 17.0–19.0 | 9.0–12.0 | — | — | Nb: 10 × C to 1.00 |
| SS904L 4539-089-04-I | ≤0.020 | ≤0.75 | ≤2.00 | ≤0.035 | ≤0.015 | 19.0–22.0 | 23.5–26.0 | 4.0–5.0 | ≤0.15 | Cu: 1.20–2.00 |
| 254 SMO 4547-312-54-I | ≤0.020 | ≤0.70 | ≤1.00 | ≤0.035 | ≤0.015 | 19.5–20.5 | 17.5–18.5 | 6.0–7.0 | 0.18–0.25 | Cu: 0.50–1.00 |
| Duplex 2205 4462-318-03-I | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.015 | 21.0–23.0 | 4.5–6.5 | 2.5–3.5 | 0.10–0.22 | — |
| Duplex S31803 4462-318-03-I | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.015 | 21.0–23.0 | 4.5–6.5 | 2.5–3.5 | 0.10–0.22 | — |
| Super Duplex 2507 4410-327-50-E | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.015 | 24.0–26.0 | 6.0–8.0 | 3.0–4.5 | 0.24–0.35 | — |
Composition in mass %. ≤ denotes a maximum; ≥ denotes a minimum; paired values are ranges. — means no numerical limit is provided in the cited data, not zero.
| Grade / designation | Form | Thickness (mm) | Condition | Test direction | Rp0.2 (MPa) | Rp1.0 min (MPa) | Rm (MPa) | A80 min (%) | A min (%) | Other requirements |
|---|---|---|---|---|---|---|---|---|---|---|
| SS304 4301-304-00-I | Cold-rolled strip | ≤8 | +AT | Transverse | 230 | 260 | 540–740 | 45 | 45 | — |
| SS304 4301-304-00-I | Hot-rolled strip | ≤13.5 | +AT | Transverse | 210 | 250 | 540–740 | 45 | 45 | — |
| SS304 4301-304-00-I | Hot-rolled plate | ≤75 | +AT | Transverse | 210 | 250 | 520–720 | 45 | 45 | — |
| SS304L 4307-304-03-I | Cold-rolled strip | ≤8 | +AT1 | Transverse | 220 | 250 | 520–720 | 45 | 45 | — |
| SS304L 4307-304-03-I | Cold-rolled strip | ≤8 | +AT2 (by agreement) | Transverse | 175 | — | 480–680 | 45 | 45 | — |
| SS304L 4307-304-03-I | Hot-rolled strip | ≤13.5 | +AT | Transverse | 200 | 240 | 520–720 | 45 | 45 | — |
| SS304L 4307-304-03-I | Hot-rolled plate | ≤75 | +AT | Transverse | 200 | 240 | 500–700 | 45 | 45 | — |
| SS316 4401-316-00-I | Cold-rolled strip | ≤8 | +AT1 | Transverse | 240 | 270 | 530–730 | 40 | 40 | — |
| SS316 4401-316-00-I | Cold-rolled strip | ≤8 | +AT2 (by agreement) | Transverse | 205 | — | 520–720 | 40 | 40 | — |
| SS316 4401-316-00-I | Hot-rolled strip | ≤13.5 | +AT | Transverse | 220 | 260 | 530–730 | 40 | 40 | — |
| SS316 4401-316-00-I | Hot-rolled plate | ≤75 | +AT | Transverse | 220 | 260 | 510–710 | 40 | 40 | — |
| SS316L 4404-316-03-I | Cold-rolled strip | ≤8 | +AT1 | Transverse | 240 | 270 | 530–730 | 40 | 40 | — |
| SS316L 4404-316-03-I | Cold-rolled strip | ≤8 | +AT2 (by agreement) | Transverse | 175 | — | 480–680 | 40 | 40 | — |
| SS316L 4404-316-03-I | Hot-rolled strip | ≤13.5 | +AT | Transverse | 220 | 260 | 530–730 | 40 | 40 | — |
| SS316L 4404-316-03-I | Hot-rolled plate | ≤75 | +AT | Transverse | 220 | 260 | 510–710 | 40 | 40 | — |
| SS317L 4438-317-03-I | Cold-rolled strip | ≤8 | +AT | Transverse | 240 | 270 | 550–700 | 35 | 35 | — |
| SS317L 4438-317-03-I | Hot-rolled strip | ≤13.5 | +AT | Transverse | 220 | 260 | 550–700 | 35 | 35 | — |
| SS317L 4438-317-03-I | Hot-rolled plate | ≤75 | +AT | Transverse | 220 | 260 | 550–700 | 40 | 40 | — |
| SS321 4541-321-00-I | Cold-rolled strip | ≤8 | +AT | Transverse | 220 | 250 | 520–720 | 40 | 40 | — |
| SS321 4541-321-00-I | Hot-rolled strip | ≤13.5 | +AT | Transverse | 200 | 240 | 520–720 | 40 | 40 | — |
| SS321 4541-321-00-I | Hot-rolled plate | ≤75 | +AT | Transverse | 200 | 240 | 500–700 | 40 | 40 | — |
| SS347 4550-347-00-I | Cold-rolled strip | ≤8 | +AT | Transverse | 220 | 250 | 520–720 | 40 | 40 | — |
| SS347 4550-347-00-I | Hot-rolled strip | ≤13.5 | +AT | Transverse | 200 | 240 | 520–720 | 40 | 40 | — |
| SS347 4550-347-00-I | Hot-rolled plate | ≤75 | +AT | Transverse | 200 | 240 | 500–700 | 40 | 40 | — |
| SS904L 4539-089-04-I | Cold-rolled strip | ≤6 | +AT | Transverse | 240 | 270 | 530–730 | 35 | 35 | — |
| SS904L 4539-089-04-I | Hot-rolled strip | ≤12 | +AT | Transverse | 220 | 260 | 530–730 | 35 | 35 | — |
| SS904L 4539-089-04-I | Hot-rolled plate | ≤75 | +AT | Transverse | 220 | 260 | 510–710 | 35 | 35 | — |
| 254 SMO 4547-312-54-I | Cold-rolled strip | ≤8 | +AT | Transverse | 320 | 350 | 650–850 | 35 | 35 | — |
| 254 SMO 4547-312-54-I | Hot-rolled strip | ≤13.5 | +AT | Transverse | 300 | 340 | 650–850 | 35 | 35 | — |
| 254 SMO 4547-312-54-I | Hot-rolled plate | ≤75 | +AT | Transverse | 300 | 340 | 650–850 | 40 | 40 | — |
| Duplex 2205 4462-318-03-I | Cold-rolled strip | ≤6 | +AT | Transverse | 480 | — | ≥660 | 20 | 20 | — |
| Duplex 2205 4462-318-03-I | Hot-rolled strip | ≤12 | +AT | Transverse | 460 | — | ≥660 | 20 | 20 | — |
| Duplex 2205 4462-318-03-I | Hot-rolled plate | ≤75 | +AT | Transverse | 460 | — | ≥640 | 20 | 20 | — |
| Duplex S31803 4462-318-03-I | Cold-rolled strip | ≤6 | +AT | Transverse | 480 | — | ≥660 | 20 | 20 | — |
| Duplex S31803 4462-318-03-I | Hot-rolled strip | ≤12 | +AT | Transverse | 460 | — | ≥660 | 20 | 20 | — |
| Duplex S31803 4462-318-03-I | Hot-rolled plate | ≤75 | +AT | Transverse | 460 | — | ≥640 | 20 | 20 | — |
| Super Duplex 2507 4410-327-50-E | Cold-rolled strip | ≤6 | +AT | Transverse | 550 | — | ≥750 | 15 | 15 | — |
| Super Duplex 2507 4410-327-50-E | Hot-rolled strip | ≤12 | +AT | Transverse | 530 | — | ≥750 | 15 | 15 | — |
| Super Duplex 2507 4410-327-50-E | Hot-rolled plate | ≤75 | +AT | Transverse | 530 | — | ≥730 | 20 | 20 | — |
Room-temperature properties for the stated product form and condition. Proof strengths and elongation are minima unless a range is shown. A80 uses an 80 mm gauge length below 3 mm thickness; A uses 5.65√S₀ from 3 mm thickness. +AT means solution annealed. For strip below 300 mm width tested longitudinally, proof stress is reduced by 15 MPa; austenitic A80 is reduced by 5 percentage points and A by 2 points. Stretcher-levelled SS304 elongation is 5 points lower. +AT2 is an alternative supplied only by agreement.