SUS630 Stainless Steel
High-Strength Corrosion-Resistant Pre-Hardened Stainless Steel
Properties:
SUS630 is a Japanese steel grade. SUS630 martensitic stainless steel is characterized by high hardness, high strength, and corrosion resistance. Particularly, it is a precipitation-hardening martensitic stainless steel and is among the hardest of all types of stainless steels. After heat treatment, the mechanical properties of the steel are further improved, achieving a strength of 1100-1300 MPa. This grade cannot be used at temperatures above 300°C or at very low temperatures. SUS630 exhibits good corrosion resistance to atmosphere, diluted acids, or salts. The corrosion resistance of this steel is comparable to that of 304 and 430. It is currently widely used in valves, shafts, and the chemical fiber industry for high-strength components that require certain corrosion resistance.
Chemical Composition:
Magnetic Stainless Steel SUS630 Chemical Composition
C 0.06 Si 1.0 Mn 1.0
Cr 16.5 Ni 4.2 Cu 4.0
Nb+Ta 0.25
Mechanical Properties:
Mechanical Properties | 480°C Aging | 550°C Aging | 580°C Aging | 620°C Aging |
Tensile Strength | 1310 | 1060 | 1000 | 930 |
Yield Strength | 1180 | 1000 | 865 | 725 |
Elongation | 10 | 12 | 13 | 16 |
Reduction of Area | 40 | 45 | 45 | 50 |
Hardness | 40 | 35 | 31 | 28 |
Applications:
1.SUS630 stainless steel plates are suitable for manufacturing plastic and rubber molds requiring high corrosion resistance and wear resistance;
2.SUS630 stainless steel material is suitable for manufacturing plastic molds for semiconductor IC encapsulation and mold components requiring corrosion and rust resistance;
3.SUS630 stainless steel round bars are suitable for turbine blades, nozzles, valves, rulers, high-corrosion-resistant bearing parts, and high-wear-resistant equipment components;
4.SUS630 stainless steel material is suitable for manufacturing high-corrosion-resistant mold equipment in the food industry, offshore platforms, etc.
Due to its excellent mechanical properties and corrosion resistance, SUS630 is also widely used in petrochemicals, nuclear power, aerospace and military, shipbuilding, automotive, medical, and other industries.
Supply Condition and Factory Hardness:
SUS630 stainless steel bars/plates/round steel/round bars/steel materials/modules are supplied in a pre-hardened condition, with a factory hardness of approximately 37-41 HBW.
