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AWS ER90S-B3 vs. SAE-AISI M2 Steel

Both AWS ER90S-B3 and SAE-AISI M2 steel are iron alloys. They have 85% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS ER90S-B3 and the bottom bar is SAE-AISI M2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 690
760 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1460
1610
Melting Onset (Solidus), °C 1420
1570
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 40
22
Thermal Expansion, µm/m-K 13
10

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
24
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.8
8.8
Embodied Energy, MJ/kg 24
130
Embodied Water, L/kg 60
98

Common Calculations

PREN (Pitting Resistance) 6.0
31
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 25
25 to 71
Strength to Weight: Bending, points 22
22 to 44
Thermal Diffusivity, mm2/s 11
5.9
Thermal Shock Resistance, points 20
27 to 76

Alloy Composition


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Carbon (C), % 0.070 to 0.12
0.78 to 1.1
Chromium (Cr), % 2.3 to 2.7
3.8 to 4.5
Copper (Cu), % 0 to 0.35
0 to 0.25
Iron (Fe), % 93.5 to 95.9
78.5 to 83.4
Manganese (Mn), % 0.4 to 0.7
0.15 to 0.4
Molybdenum (Mo), % 0.9 to 1.2
4.5 to 5.5
Nickel (Ni), % 0 to 0.2
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0.4 to 0.7
0.2 to 0.45
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
5.5 to 6.8
Vanadium (V), % 0
1.8 to 2.2
Residuals, % 0 to 0.5
0