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EN 1.4971 Stainless Steel vs. AWS ER120S-1

Both EN 1.4971 stainless steel and AWS ER120S-1 are iron alloys. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. 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 1.4971 stainless steel and the bottom bar is AWS ER120S-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
17
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 800
930
Tensile Strength: Yield (Proof), MPa 340
830

Thermal Properties

Latent Heat of Fusion, J/g 300
260
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
46
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
4.2
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 7.6
1.9
Embodied Energy, MJ/kg 110
25
Embodied Water, L/kg 300
56

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
150
Resilience: Unit (Modulus of Resilience), kJ/m3 280
1850
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
33
Strength to Weight: Bending, points 23
27
Thermal Diffusivity, mm2/s 3.4
13
Thermal Shock Resistance, points 19
27

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0.080 to 0.16
0 to 0.1
Chromium (Cr), % 20 to 22.5
0 to 0.6
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 24.3 to 37.1
92.4 to 96.1
Manganese (Mn), % 0 to 2.0
1.4 to 1.8
Molybdenum (Mo), % 2.5 to 3.5
0.3 to 0.65
Nickel (Ni), % 19 to 21
2.0 to 2.8
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.010
Silicon (Si), % 0 to 1.0
0.25 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 2.0 to 3.0
0
Vanadium (V), % 0
0 to 0.030
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.5