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Grade 350 Maraging Steel vs. ASTM A302 Alloy Steel

Both grade 350 maraging steel and ASTM A302 alloy steel are iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is grade 350 maraging steel and the bottom bar is ASTM A302 alloy steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.1 to 18
20 to 23
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 710 to 1400
370 to 390
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
590 to 620
Tensile Strength: Yield (Proof), MPa 830 to 2300
350 to 390

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 39
2.4 to 3.0
Density, g/cm3 8.2
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 5.6
1.5 to 1.6
Embodied Energy, MJ/kg 74
20 to 21
Embodied Water, L/kg 160
48 to 50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
110 to 120
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 38 to 82
21 to 22
Strength to Weight: Bending, points 29 to 49
20 to 21
Thermal Shock Resistance, points 35 to 74
17 to 18