630 stainless steel is a precipitation hardening martensitic stainless steel.
630 stainless steel is made of copper, niobium / columbium form of precipitation hardening, martensitic stainless steel.
This class has a high strength, hardness (up to 300 º C/572 º F) and anti-corrosion properties.
After heat treatment, the mechanical properties of the product more complete, can reach up to 1100-1300 mpa (160-190 ksi) of compressive strength.
This class can not be used above 300 º C (572 º F) or very low temperatures, dilute acid or its salt air and has good corrosion resistance, corrosion resistance and its 304 and 430 the same.
Applications
· Offshore platforms, helicopter deck, and other platforms
· Food Industry
· Pulp and paper industry
· Aerospace (turbine blades)
· Mechanical components
· Drums of nuclear waste

Feature

630 stainless steel is a precipitation hardening, martensitic stainless steel, and this level has a high strength, hardness and corrosion resistance properties. After heat treatment, the mechanical properties of the product more complete, can reach up to 1100-1300 mpa (160-190 ksi) of compressive strength. This class can not be used above 300 ℃ (570F) or very low temperatures, dilute acid or its salt air and has good corrosion resistance, corrosion resistance and its 304 and 430 the same.

"Chinese brands 0Cr17Ni4Cu4Nb 05Cr17Ni4Cu4Nb

Chemical composition

C Si Mn P

≤ 0.07 ≤ 1.00 ≤ 1.00 ≤ 0.035
S Ni Cr Mo
≤ 0.030 3.00-5.00 15.5-17.5 -
Cu Nb Other
3.00-5.00 0.15-0.45 -
U.S. ASTMS17400, AISI630, UNS630
Chemical composition
C Si Mn P
≤ 0.07 ≤ 1.00 ≤ 1.00 ≤ 0.040
S Ni Cr Mo
≤ 0.030 3.00-5.00 15.5-17.5 -
Cu Nb Other
3.00-5.00 0.15-0.45 -
Japan SUS630
Chemical composition
C Si Mn P
≤ 0.07 ≤ 1.00 ≤ 1.00 ≤ 0.040
S Ni Cr Mo
≤ 0.030 3.00-5.00 15.5-17.5 -
Cu Nb + Tao other
3.00-5.00 0.15-0.45 -
European X5CrNiCuNb16-4
Chemical composition
C Si Mn P
≤ 0.07 ≤ 1.00 ≤ 1.00 ≤ 0.040
S Ni Cr Mo
≤ 0.030 3.00-5.00 15.5-17.5 -
Cu Nb + Tao other
3.00-5.00 0.15-0.45 -