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EN 1.4901 Stainless Steel vs. AWS E308Mo

Both EN 1.4901 stainless steel and AWS E308Mo are iron alloys. They have 75% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4901 stainless steel and the bottom bar is AWS E308Mo.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
40
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 740
620

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1490
1440
Melting Onset (Solidus), °C 1450
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
16
Thermal Expansion, µm/m-K 12
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
19
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.8
3.8
Embodied Energy, MJ/kg 40
53
Embodied Water, L/kg 89
160

Common Calculations

PREN (Pitting Resistance) 14
28
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
22
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 6.9
4.2
Thermal Shock Resistance, points 23
16

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0 to 0.080
Chromium (Cr), % 8.5 to 9.5
18 to 21
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 85.8 to 89.1
59.6 to 70.5
Manganese (Mn), % 0.3 to 0.6
0.5 to 2.5
Molybdenum (Mo), % 0.3 to 0.6
2.0 to 3.0
Nickel (Ni), % 0 to 0.4
9.0 to 12
Niobium (Nb), % 0.040 to 0.090
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
0
Vanadium (V), % 0.15 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0