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AWS E308Mo vs. EN 1.4123 Stainless Steel

Both AWS E308Mo and EN 1.4123 stainless steel are iron alloys. They have 83% 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 E308Mo and the bottom bar is EN 1.4123 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
23
Thermal Expansion, µm/m-K 14
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 19
10
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.8
4.2
Embodied Energy, MJ/kg 53
62
Embodied Water, L/kg 160
120

Common Calculations

PREN (Pitting Resistance) 28
24
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
26 to 29
Strength to Weight: Bending, points 20
23 to 25
Thermal Diffusivity, mm2/s 4.2
6.3
Thermal Shock Resistance, points 16
26 to 29

Alloy Composition

Carbon (C), % 0 to 0.080
0.35 to 0.5
Chromium (Cr), % 18 to 21
14 to 16.5
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 59.6 to 70.5
76.7 to 84.6
Manganese (Mn), % 0.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
1.0 to 2.5
Nickel (Ni), % 9.0 to 12
0 to 0.5
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0 to 1.5