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SAE-AISI M42 Steel vs. SAE-AISI H13 Steel

Both SAE-AISI M42 steel and SAE-AISI H13 steel are iron alloys. They have 86% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M42 steel and the bottom bar is SAE-AISI H13 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 78
74
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
690 to 1820

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1540
1460
Melting Onset (Solidus), °C 1490
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 20
29
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 30
6.0
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 7.4
4.3
Embodied Energy, MJ/kg 100
64
Embodied Water, L/kg 140
78

Common Calculations

PREN (Pitting Resistance) 38
9.9
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 28 to 79
25 to 65
Strength to Weight: Bending, points 24 to 48
22 to 43
Thermal Diffusivity, mm2/s 5.4
7.8
Thermal Shock Resistance, points 25 to 71
25 to 65

Alloy Composition

Carbon (C), % 1.1 to 1.2
0.32 to 0.45
Chromium (Cr), % 3.5 to 4.3
4.8 to 5.5
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 76.3 to 81
88.8 to 92
Manganese (Mn), % 0.15 to 0.4
0.2 to 0.5
Molybdenum (Mo), % 9.0 to 10
1.1 to 1.8
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 0.65
0.8 to 1.2
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.2 to 1.9
0
Vanadium (V), % 1.0 to 1.4
0.8 to 1.2

Comparable Variants