254 SMO UNS S31254 EN 1.4547 stainless steel
S31254 stainless steel material standards include American ASTM A280, ASME SA-240 standards, corresponding to Chinese GB/T20878-2007 standard 02Cr20Ni18Mo6CuN.
S31254 is a corrosion-resistant stainless steel alloy material with high molybdenum content and high chromium and nitrogen content giving it excellent resistance to spot corrosion and crevices corrosion. The addition of copper improves corrosion resistance in some acids. In addition, due to its high nickel content and high chromium and molybdenum content, UNSS31254 has a good resistance to stress corrosion cracking performance
Material grade: 254SMo Super austenitic stainless steel
American brand: UNS S31254
German brand: 1.4547
Chinese brand: 00Cr20Ni18Mo6CuN
Forging grade: F44
254SMo(S31254, F44, 1.4547) Super Austenitic stainless steel Physical properties:
1, 254SMO(S31254, F44, 1.4547) stainless steel density: 8.24g/cm3,
2, 254SMO(S31254, F44, 1.4547) stainless steel melting point: 1320-1390 ℃,
3, 254SMO(S31254, F44, 1.4547) stainless steel magnetic: None
254SMo(S31254, F44, 1.4547) Super Austenitic stainless steel Corrosion Resistance:
254SMO(S31254, F44, 1.4547) stainless steel is a kind of high corrosion resistance super austenitic stainless steel, developed for halide and acid environments, widely used in high concentration chloride ion media, seawater and other harsh working conditions. In various industrial applications with acidic media, especially in acids containing halides, 254SMO is far superior to other stainless steels, and in some cases can be comparable to Hastelloy and titanium. Low carbon content and high molybdenum content, so that it has better resistance to spot corrosion and crevice corrosion resistance, excellent intergranular corrosion resistance, is a cost-effective stainless steel, in the chemical industry, desulfurization and environmental protection and other fields widely used.
254SMo(S31254, F44, 1.4547) Super Austenitic stainless steel Mechanical properties: 1, mechanical properties: tensile strength: σb≥650Mpa, 2, yield strength σb≥310Mpa: 3, elongation: δ≥40%, 4, hardness: 182-223 (HB)
| Standard | Steel Grade | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition (%) | ||||||||||
| C: | Mn: | Si: | P: | S: | Cr: | Mo: | Ni: | Cu: | N: | |
| PN-EN | X1CrNiMoCuN20-18-7 - 1.4547 - 4547 | |||||||||
| <0.02 | <1.00 | <0.70 | <0.03 | <0.01 | 19.50 - 20.50 | 6.00 - 7.00 | 17.50 - 18.50 | 0.50 - 1.00 | 0.18 - 0.25 | |
| UNS | S31254 | |||||||||
| <0.02 | <1.00 | <0.80 | <0.03 | <0.01 | 19.50 - 20.50 | 6.00 - 6.50 | 17.50 - 18.50 | 0.50 - 1.00 | 0.18 - 0.25 | |
| GB/T | 00Cr20Ni18Mo6CuN | |||||||||
| <0.02 | <1.00 | <0.80 | <0.03 | <0.01 | 19.50 - 20.50 | 8.00 - 8.50 | 17.50 - 18.50 | 0.50 - 1.00 | 0.18 - 0.22 | |
| AFNOR | Z2CNDU20-18-7Az - Z 2 CNDU 20-18-7 Az - DMV 420 - DMV 4335 - DMV 954 | |||||||||
| <0.02 | <1.00 | <0.70 | <0.03 | <0.01 | 19.50 - 20.50 | 6.00 - 7.00 | 17.50 - 18.50 | 0.50 - 1.00 | 0.18 - 0.25 | |
| AFNOR | Z1CNDU20.18.06AZ - Z 1 CNDU 20.18.06Az | |||||||||
| <0.02 | <1.00 | <0.03 | - | <0.01 | 20.00 | 6.10 | 18.00 | 0.70 | 0.20 | |
| SANDVIK | 254SMO® - 254 SMO ® - SMO 254 - SMO254 | |||||||||
| <0.02 | <1.00 | <0.03 | - | <0.01 | 20.00 | 6.10 | 18.00 | 0.70 | 0.20 | |
| EN | GX2CrNiMoCuN20-18-6 - GX 2 CrNiMoCuN 20-18-6 - 1.4557 | |||||||||
| <0.025 | <1.00 | <0.03 | <0.03 | <0.01 | 19.50 - 20.50 | 6.00 - 7.00 | 17.50 - 19.50 | 0.50 - 1.00 | 0.18 - 0.24 | |
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