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SAE-AISI M2 Steel vs. AWS E630

Both SAE-AISI M2 steel and AWS E630 are iron alloys. They have 79% of their average alloy composition in common. There are 22 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 M2 steel and the bottom bar is AWS E630.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
1040

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1610
1430
Melting Onset (Solidus), °C 1570
1380
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 22
17
Thermal Expansion, µm/m-K 10
14

Otherwise Unclassified Properties

Base Metal Price, % relative 24
14
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 8.8
2.8
Embodied Energy, MJ/kg 130
40
Embodied Water, L/kg 98
140

Common Calculations

PREN (Pitting Resistance) 31
18
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 25 to 71
37
Strength to Weight: Bending, points 22 to 44
29
Thermal Diffusivity, mm2/s 5.9
4.5
Thermal Shock Resistance, points 27 to 76
28

Alloy Composition

Carbon (C), % 0.78 to 1.1
0 to 0.050
Chromium (Cr), % 3.8 to 4.5
16 to 16.8
Copper (Cu), % 0 to 0.25
3.3 to 4.0
Iron (Fe), % 78.5 to 83.4
71.6 to 75.9
Manganese (Mn), % 0.15 to 0.4
0.25 to 0.75
Molybdenum (Mo), % 4.5 to 5.5
0 to 0.75
Nickel (Ni), % 0 to 0.3
4.5 to 5.0
Niobium (Nb), % 0
0.15 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0