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Grade 300 Maraging Steel vs. ASTM B631 Class B

Grade 300 maraging steel belongs to the iron alloys classification, while ASTM B631 class B belongs to the otherwise unclassified metals. There are 12 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.

For each property being compared, the top bar is grade 300 maraging steel and the bottom bar is ASTM B631 class B.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.3
0.31
Shear Modulus, GPa 75
78 to 79

Thermal Properties

Latent Heat of Fusion, J/g 270
150
Melting Completion (Liquidus), °C 1480
2460 to 2480
Specific Heat Capacity, J/kg-K 450
170
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Density, g/cm3 8.2
14
Embodied Carbon, kg CO2/kg material 5.1
49
Embodied Energy, MJ/kg 68
760

Common Calculations

Stiffness to Weight: Axial, points 13
8.1
Stiffness to Weight: Bending, points 23
14