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30mm SUS630 Martensitic Stainless Steel rod X5CrNiCuNb16-4 rod for high corrosion resistance parts
Chinese Grade: 0Cr17Ni4Cu4Nb
(UNS S17400, AISI 630, AMS5643, ASTM A705, ASTM A564)
SUS630(Japanese Grade)is martensitic precipitation hardening stainless steel. It has high strength, high hardness, good welding performance and corrosion resistance. It has been widely used in valve, shaft, chemical fiber industry and high strength parts with certain corrosion resistance requirements.
| Country | China | America | Japan | Europe |
| Grade | 0Cr17Ni4Cu4Nb | ASTMS17400 | SUS630 | X5CrNiCuNb16-4 |
Characteristics and Usage:
Metallographic Structure: precipitation hardening type
Application Industry: offshore platform, helideck, other platforms, food industry, pulp and paper industry, aerospace (turbine blade), mechanical parts and nuclear waste barrel
Chemical Composition%:
| GRADE | C | Si | Mn | P | S | Ni | Cr | Mo | Cu | Nb |
| 0Cr17Ni4Cu4Nb | ≤0.07 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.030 | 3.0-5.0 | 15.5-17.5 | - | 3.0-5.0 | 0.15-0.45 |
| ASTMS17400 | ≤0.07 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.030 | 3.0-5.0 | 15.5-17.5 | - | 3.0-5.0 | 0.15-0.45 |
| SUS630 | ≤0.07 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.030 | 3.0-5.0 | 15.5-17.5 | - | 3.0-5.0 | 0.15-0.45 |
| X5CrNiCuNb16-4 | ≤0.08 | ≤1.00 | ≤1.00 | ≤0.045 | ≤0.030 | 3.0-5.0 | 15.0-17.0 | - | 3.0-5.0 | 0.15-0.45 |
Aging Temperature | 480℃ | 550℃ | 580℃ | 620℃ |
Tensile Strength σb (MPa) | ≥1310 | ≥1060 | ≥1000 | ≥930 |
Yield σ0.2 (MPa) | ≥1180 | ≥1000 | ≥865 | ≥725 |
Elongation δ5 (%) | ≥10 | ≥12 | ≥13 | ≥16 |
Section Shrinkage ψ (%) | ≥40 | ≥45 | ≥45 | ≥50 |
Hardness | ≥375HB/≥40HRC | ≥331HB/≥35HRC | ≥302HB/≥31HRC | ≥277HB/≥28HRC |
This grade cannot be used at temperatures higher than 300 ℃ (570F) or at very low temperature. Its corrosion resistance is the same as that of 304 and 430 in normal atmosphere, diluted acid or salt.
