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AWS E308Mo vs. S45500 Stainless Steel

Both AWS E308Mo and S45500 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AWS E308Mo and the bottom bar is S45500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
3.4 to 11
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 620
1370 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 14
11

Otherwise Unclassified Properties

Base Metal Price, % relative 19
17
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.8
3.8
Embodied Energy, MJ/kg 53
57
Embodied Water, L/kg 160
120

Common Calculations

PREN (Pitting Resistance) 28
13
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
48 to 65
Strength to Weight: Bending, points 20
35 to 42
Thermal Shock Resistance, points 16
48 to 64

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.050
Chromium (Cr), % 18 to 21
11 to 12.5
Copper (Cu), % 0 to 0.75
1.5 to 2.5
Iron (Fe), % 59.6 to 70.5
71.5 to 79.2
Manganese (Mn), % 0.5 to 2.5
0 to 0.5
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.5
Nickel (Ni), % 9.0 to 12
7.5 to 9.5
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.8 to 1.4