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AWS E33-31 vs. SAE-AISI M6 Steel

Both AWS E33-31 and SAE-AISI M6 steel are iron alloys. They have a modest 36% of their average alloy composition in common, which, by itself, doesn't mean much. 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 AWS E33-31 and the bottom bar is SAE-AISI M6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
77
Tensile Strength: Ultimate (UTS), MPa 810
840 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1380
1560
Melting Onset (Solidus), °C 1330
1510
Specific Heat Capacity, J/kg-K 480
440
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
39
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 6.0
8.0
Embodied Energy, MJ/kg 86
120
Embodied Water, L/kg 260
160

Common Calculations

PREN (Pitting Resistance) 44
28
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 28
28 to 73
Strength to Weight: Bending, points 24
24 to 45
Thermal Shock Resistance, points 19
26 to 68

Alloy Composition

Carbon (C), % 0 to 0.030
0.75 to 0.85
Chromium (Cr), % 31 to 35
3.8 to 4.5
Cobalt (Co), % 0
11 to 13
Copper (Cu), % 0.4 to 0.8
0
Iron (Fe), % 24.7 to 34.8
68.8 to 74.6
Manganese (Mn), % 2.5 to 4.0
0.15 to 0.4
Molybdenum (Mo), % 1.0 to 2.0
4.5 to 5.5
Nickel (Ni), % 30 to 32
0
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.9
0.2 to 0.45
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0
3.8 to 4.8
Vanadium (V), % 0
1.3 to 1.7