ASTM 630 stainless steel has a combination of high hardness and strength after suitable heat treatment. It also has similar corrosion and heat resistance to Grade 304.
Composition ranges for 630 grade of stainless steels.
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Ni |
Cu |
Nb+Ta |
|
|
630 |
min. max |
- 0.07 |
- 1.00 |
- 1.00 |
- 0.040 |
- 0.030 |
15.0 17.5 |
3.0 5.0 |
3.0 5.0 |
0.15 0.45 |
Typical physical properties for 630 grade stainless steels.
|
Grade |
Density |
Elastic Modulus |
Mean Co-eff of Thermal Expansion (µm/m/°C) |
Thermal Conductivity |
Specific Heat 0-100°C |
Elec Resistivity |
|||
|
0-100°C |
0-315°C |
0-538°C |
At 100°C |
At 500°C |
|||||
|
630 |
7750 |
196 |
10.8 |
11.6 |
- |
18.4 |
22.7 |
460 |
800 |
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