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EN 1.4458 Stainless Steel vs. AWS ER70S-B2L

Both EN 1.4458 stainless steel and AWS ER70S-B2L 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 ER70S-B2L.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
22
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 510
590
Tensile Strength: Yield (Proof), MPa 190
450

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
120
Resilience: Unit (Modulus of Resilience), kJ/m3 89
530
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 4.2
11
Thermal Shock Resistance, points 12
17

Alloy Composition


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Carbon (C), % 0 to 0.030
0 to 0.050
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
95.3 to 97.6
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