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AWS E318 vs. SAE-AISI M43 Steel

Both AWS E318 and SAE-AISI M43 steel are iron alloys. They have 71% 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 AWS E318 and the bottom bar is SAE-AISI M43 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 620
810 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1440
1550
Melting Onset (Solidus), °C 1400
1500
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 15
19
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 23
33
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 4.4
8.5
Embodied Energy, MJ/kg 62
120
Embodied Water, L/kg 160
140

Common Calculations

PREN (Pitting Resistance) 27
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
27 to 77
Strength to Weight: Bending, points 20
24 to 47
Thermal Diffusivity, mm2/s 4.0
5.3
Thermal Shock Resistance, points 16
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.080
1.2 to 1.3
Chromium (Cr), % 17 to 20
3.5 to 4.3
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 57.6 to 69.5
70.8 to 76
Manganese (Mn), % 0.5 to 2.5
0.2 to 0.4
Molybdenum (Mo), % 2.0 to 3.0
7.5 to 8.5
Nickel (Ni), % 11 to 14
0 to 0.3
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.65
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
2.3 to 3.0
Vanadium (V), % 0
1.5 to 1.8