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SAE-AISI M2 Steel vs. AWS E3155

Both SAE-AISI M2 steel and AWS E3155 are iron alloys. They have 40% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (1, 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 E3155.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
770

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1570
1410
Specific Heat Capacity, J/kg-K 440
450
Thermal Conductivity, W/m-K 22
13
Thermal Expansion, µm/m-K 10
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
70
Density, g/cm3 8.4
8.4
Embodied Carbon, kg CO2/kg material 8.8
7.7
Embodied Energy, MJ/kg 130
110
Embodied Water, L/kg 98
300

Common Calculations

PREN (Pitting Resistance) 31
35
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 25 to 71
26
Strength to Weight: Bending, points 22 to 44
22
Thermal Diffusivity, mm2/s 5.9
3.3
Thermal Shock Resistance, points 27 to 76
20

Alloy Composition

Carbon (C), % 0.78 to 1.1
0 to 0.1
Chromium (Cr), % 3.8 to 4.5
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 78.5 to 83.4
23.3 to 36.3
Manganese (Mn), % 0.15 to 0.4
1.0 to 2.5
Molybdenum (Mo), % 4.5 to 5.5
2.5 to 3.5
Nickel (Ni), % 0 to 0.3
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.5 to 6.8
2.0 to 3.0
Vanadium (V), % 1.8 to 2.2
0