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EN 1.4971 Stainless Steel vs. AWS E90C-B9

Both EN 1.4971 stainless steel and AWS E90C-B9 are iron alloys. They have 42% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4971 stainless steel and the bottom bar is AWS E90C-B9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
18
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 81
75
Tensile Strength: Ultimate (UTS), MPa 800
710
Tensile Strength: Yield (Proof), MPa 340
460

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
25
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
7.0
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 7.6
2.6
Embodied Energy, MJ/kg 110
37
Embodied Water, L/kg 300
91

Common Calculations

PREN (Pitting Resistance) 38
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
110
Resilience: Unit (Modulus of Resilience), kJ/m3 280
550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
25
Strength to Weight: Bending, points 23
23
Thermal Diffusivity, mm2/s 3.4
6.9
Thermal Shock Resistance, points 19
20

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0.080 to 0.16
0.080 to 0.13
Chromium (Cr), % 20 to 22.5
8.0 to 10.5
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 24.3 to 37.1
84.4 to 90.9
Manganese (Mn), % 0 to 2.0
0 to 1.2
Molybdenum (Mo), % 2.5 to 3.5
0.85 to 1.2
Nickel (Ni), % 19 to 21
0 to 0.8
Niobium (Nb), % 0.75 to 1.3
0.020 to 0.1
Nitrogen (N), % 0.1 to 0.2
0.030 to 0.070
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 2.0 to 3.0
0
Vanadium (V), % 0
0.15 to 0.3
Residuals, % 0
0 to 0.5