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AWS E312 vs. SAE-AISI T4 Steel

Both AWS E312 and SAE-AISI T4 steel are iron alloys. They have 63% of their average alloy composition in common. 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 E312 and the bottom bar is SAE-AISI T4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 740
800 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Melting Completion (Liquidus), °C 1410
1810
Melting Onset (Solidus), °C 1360
1750
Specific Heat Capacity, J/kg-K 480
410
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 20
55
Density, g/cm3 7.7
9.4
Embodied Carbon, kg CO2/kg material 3.6
8.5
Embodied Energy, MJ/kg 52
130
Embodied Water, L/kg 200
120

Common Calculations

PREN (Pitting Resistance) 31
37
Stiffness to Weight: Axial, points 15
12
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 27
24 to 64
Strength to Weight: Bending, points 24
20 to 39
Thermal Shock Resistance, points 18
24 to 64

Alloy Composition

Carbon (C), % 0 to 0.15
0.7 to 0.8
Chromium (Cr), % 28 to 32
3.8 to 4.5
Cobalt (Co), % 0
4.3 to 5.8
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 52.3 to 63.5
66.3 to 72.3
Manganese (Mn), % 0.5 to 2.5
0.1 to 0.4
Molybdenum (Mo), % 0 to 0.75
0.4 to 1.0
Nickel (Ni), % 8.0 to 10.5
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0
0.8 to 1.2