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AWS ER90S-B3 vs. SAE-AISI H12 Steel

Both AWS ER90S-B3 and SAE-AISI H12 steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (4, 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 H12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 690
690 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1440
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
36
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
9.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.8
2.9
Embodied Energy, MJ/kg 24
41
Embodied Water, L/kg 60
76

Common Calculations

PREN (Pitting Resistance) 6.0
12
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
24 to 65
Strength to Weight: Bending, points 22
22 to 42
Thermal Diffusivity, mm2/s 11
9.8
Thermal Shock Resistance, points 20
22 to 60

Alloy Composition


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Carbon (C), % 0.070 to 0.12
0.3 to 0.4
Chromium (Cr), % 2.3 to 2.7
4.8 to 5.5
Copper (Cu), % 0 to 0.35
0 to 0.25
Iron (Fe), % 93.5 to 95.9
87.8 to 91.7
Manganese (Mn), % 0.4 to 0.7
0.2 to 0.5
Molybdenum (Mo), % 0.9 to 1.2
1.3 to 1.8
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
0.8 to 1.2
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
1.0 to 1.7
Vanadium (V), % 0
0 to 0.5
Residuals, % 0 to 0.5
0