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SAE-AISI H42 Steel vs. Grade 350 Maraging Steel

Both SAE-AISI H42 steel and grade 350 maraging steel are iron alloys. They have 68% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H42 steel and the bottom bar is grade 350 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 700 to 1980
1140 to 2420

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1620
1470
Melting Onset (Solidus), °C 1570
1420
Specific Heat Capacity, J/kg-K 440
450
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
39
Density, g/cm3 8.4
8.2
Embodied Carbon, kg CO2/kg material 8.8
5.6
Embodied Energy, MJ/kg 130
74
Embodied Water, L/kg 98
160

Common Calculations

PREN (Pitting Resistance) 31
16
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 23 to 65
38 to 82
Strength to Weight: Bending, points 21 to 42
29 to 49
Thermal Shock Resistance, points 20 to 57
35 to 74

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0.55 to 0.7
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
0
Cobalt (Co), % 0
11.5 to 12.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 79.3 to 83.8
61.2 to 64.6
Manganese (Mn), % 0.15 to 0.4
0 to 0.1
Molybdenum (Mo), % 4.5 to 5.5
4.6 to 5.2
Nickel (Ni), % 0 to 0.3
18 to 19
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.3 to 1.6
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0
Zirconium (Zr), % 0
0 to 0.020

Comparable Variants