S31254
Characteristics
S31254 is a super austenitic stainless steel containing 6% molybdenum. It is designed to have shock resistant toughness against chloride stress corrosion cracking, combined with good pitting and crevice corrosion resistance. Depending on the environment of use, this material is highly cost effective as a substitute to nickel or titanium alloys and is also excellent in machinability.
Stock Form and Sizes
◆1000mm ◎2000mm ▲3000mm ■3500mm ●4000mm ★2500mm～3990mm
Peeled round barsSpecification：ASTM A182/A276/A479、ASME SA182/SA276/SA479、NACE MR0175/MR0103、EN 1.4547
| Size 8〜26 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 8 | 10 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 26 |
| ★ SD | ★ SD | ★ | ★ | ★ | ★ | |||||||||
| Size 27〜48 | ||||||||||||||
| 27 | 28 | 30 | 32 | 33 | 34 | 35 | 36 | 38 | 40 | 42 | 44 | 45 | 46 | 48 |
| ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | |||||||
| Size 50〜140 | ||||||||||||||
| 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 110 | 120 | 130 | 140 |
| ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | |||||||
| Size 150〜250 | ||||||||||||||
| 150 | 160 | 170 | 180 | 190 | 200 | 230 | 250 | |||||||
| ★ | ||||||||||||||
※SD・・・Pickled
Chemical composition
| Ni | Cr | Fe | C | Mn | Si | Co | P | S | Mo | Cu | N | Nb | Ta | Nb+Ta | W | V | other | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | 17.5 | 19.5 | 6.0 | 0.50 | 0.18 | |||||||||||||
| max | 18.5 | 20.5 | 0.020 | 1.00 | 0.80 | 0.030 | 0.010 | 6.5 | 1.00 | 0.22 |
※Above is standard values of ASTM A276. For further information, please contact us.
Mechanical properties
| Tensile Strength Mpa | 0.2% Yield Strength Mpa | Elongation ％ | Reduction of Area ％ | Hardness | |
|---|---|---|---|---|---|
| min | 650 | 300 | 35 | 50 | |
| max |
※Above is standard values of ASTM A276. For further information, please contact us.
International Specification Comparison chart
| Material | Round bars | Plates/Sheets | Pipes/Tubes | ||
|---|---|---|---|---|---|
| Seamless | Welded | ||||
| JIS | |||||
| ASTM | S31254 | A182/A276/A479 | A240 | A312 | A312 |
| ASME | S31254 | SA182/SA276/SA479 | SA240 | SA312 | SA312 |
| DIN/EN | 1.4547 | ||||
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