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SAE-AISI M42 Steel vs. AWS E312

Both SAE-AISI M42 steel and AWS E312 are iron alloys. They have 63% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M42 steel and the bottom bar is AWS E312.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
740

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1540
1410
Melting Onset (Solidus), °C 1490
1360
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 30
20
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 7.4
3.6
Embodied Energy, MJ/kg 100
52
Embodied Water, L/kg 140
200

Common Calculations

PREN (Pitting Resistance) 38
31
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 28 to 79
27
Strength to Weight: Bending, points 24 to 48
24
Thermal Shock Resistance, points 25 to 71
18

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.15
Chromium (Cr), % 3.5 to 4.3
28 to 32
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 76.3 to 81
52.3 to 63.5
Manganese (Mn), % 0.15 to 0.4
0.5 to 2.5
Molybdenum (Mo), % 9.0 to 10
0 to 0.75
Nickel (Ni), % 0 to 0.3
8.0 to 10.5
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.65
0 to 1.0
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