ASTM A470 Grade B Class 4 Double-Normalized and Tempered
Equivalent material: ASTM Grade B Class 3, UNS K22878
ASTM A470 Grade B Class 4 Double-Normalized and Tempered general
Property |
Temperature |
Value |
Comment |
Density |
23.0 °C |
Density of 7.8 g/cm³ |
Typical for Steel |
ASTM A470 Grade B Class 4 Double-Normalized and Tempered chemical
Property |
Value |
Aluminium |
Aluminium of 0.015 % |
Carbon |
Carbon of 0.22 - 0.3 % |
Chromium |
Chromium of 0.75 % |
Manganese |
Manganese of 0.2 - 0.6 % |
Molybdenum |
Molybdenum of 0.4 - 0.6 % |
Nickel |
Nickel of 3.2 - 3.7 % |
Phosphorus |
Phosphorus of 0.01 % |
Sulfur |
Sulfur of 0.012 % |
Vanadium |
Vanadium of 0.04 - 0.12 % |
ASTM A470 Grade B Class 4 Double-Normalized and Tempered mechanical
Property |
Temperature |
Value |
Comment |
Charpy impact energy |
23.0 °C |
Charpy impact energy of 27 J |
- |
Elastic modulus |
23.0 °C |
Elastic modulus of 190 - 210 GPa |
Typical for Steel |
Elongation A50 |
23.0 °C |
Elongation A50 of 17 % |
- |
Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.3 [-] |
Typical for Steel |
Reduction of area |
23.0 °C |
Reduction of area of 45 % |
- |
Tensile strength |
23.0 °C |
Tensile strength of 725 MPa |
- |
Yield strength |
23.0 °C |
Yield strength of 585 MPa |
- |
Yield strength Rp0.02 |
23.0 °C |
Yield strength Rp0.02 of 585 MPa |
- |
Yield strength Rp0.2 |
23.0 °C |
Yield strength Rp0.2 of 620 MPa |
- |
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