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EN 1.4458 Stainless Steel vs. AWS ER80S-B2

Both EN 1.4458 stainless steel and AWS ER80S-B2 are iron alloys. They have 50% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4458 stainless steel and the bottom bar is AWS ER80S-B2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
21
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 510
620
Tensile Strength: Yield (Proof), MPa 190
540

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
40
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 30
3.0
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
1.6
Embodied Energy, MJ/kg 75
21
Embodied Water, L/kg 200
54

Common Calculations

PREN (Pitting Resistance) 30
3.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
130
Resilience: Unit (Modulus of Resilience), kJ/m3 89
760
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
22
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 4.2
11
Thermal Shock Resistance, points 12
18

Alloy Composition


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Carbon (C), % 0 to 0.030
0.070 to 0.12
Chromium (Cr), % 19 to 22
1.2 to 1.5
Copper (Cu), % 0 to 2.0
0 to 0.35
Iron (Fe), % 40.2 to 53
95.2 to 97.5
Manganese (Mn), % 0 to 2.0
0.4 to 0.7
Molybdenum (Mo), % 2.0 to 2.5
0.4 to 0.65
Nickel (Ni), % 26 to 30
0 to 0.2
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 1.0
0.4 to 0.7
Sulfur (S), % 0 to 0.025
0 to 0.025
Residuals, % 0
0 to 0.5