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EN 1.4458 Stainless Steel vs. AWS ER90S-B9

Both EN 1.4458 stainless steel and AWS ER90S-B9 are iron alloys. They have 58% 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 ER90S-B9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
18
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 510
690
Tensile Strength: Yield (Proof), MPa 190
470

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
25
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 30
7.0
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
2.6
Embodied Energy, MJ/kg 75
37
Embodied Water, L/kg 200
91

Common Calculations

PREN (Pitting Resistance) 30
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
110
Resilience: Unit (Modulus of Resilience), kJ/m3 89
570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
25
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 4.2
6.9
Thermal Shock Resistance, points 12
19

Alloy Composition


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Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.030
0.070 to 0.13
Chromium (Cr), % 19 to 22
8.0 to 10.5
Copper (Cu), % 0 to 2.0
0 to 0.2
Iron (Fe), % 40.2 to 53
84.4 to 90.7
Manganese (Mn), % 0 to 2.0
0 to 1.2
Molybdenum (Mo), % 2.0 to 2.5
0.85 to 1.2
Nickel (Ni), % 26 to 30
0 to 0.8
Niobium (Nb), % 0
0.020 to 0.1
Nitrogen (N), % 0 to 0.2
0.030 to 0.070
Phosphorus (P), % 0 to 0.035
0 to 0.010
Silicon (Si), % 0 to 1.0
0.15 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.010
Vanadium (V), % 0
0.15 to 0.3
Residuals, % 0
0 to 0.5