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ASTM A302 Alloy Steel vs. AWS BNi-8

ASTM A302 alloy steel belongs to the iron alloys classification, while AWS BNi-8 belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is ASTM A302 alloy steel and the bottom bar is AWS BNi-8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
67
Tensile Strength: Ultimate (UTS), MPa 590 to 620
570

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Melting Completion (Liquidus), °C 1460
1010
Melting Onset (Solidus), °C 1420
980
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4 to 3.0
46
Density, g/cm3 7.8 to 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
8.2
Embodied Energy, MJ/kg 20 to 21
120
Embodied Water, L/kg 48 to 50
220

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 22
20
Strength to Weight: Bending, points 20 to 21
19
Thermal Shock Resistance, points 17 to 18
17