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AWS ER70S-A1 vs. EN 1.4874 Stainless Steel

Both AWS ER70S-A1 and EN 1.4874 stainless steel are iron alloys. They have a modest 33% 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 (7, in this case) are not shown.

For each property being compared, the top bar is AWS ER70S-A1 and the bottom bar is EN 1.4874 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 22
6.7
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 590
480
Tensile Strength: Yield (Proof), MPa 450
360

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 50
13
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
70
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.5
7.6
Embodied Energy, MJ/kg 20
110
Embodied Water, L/kg 48
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
29
Resilience: Unit (Modulus of Resilience), kJ/m3 540
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
16
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 14
3.3
Thermal Shock Resistance, points 17
11

Alloy Composition

Carbon (C), % 0 to 0.12
0.35 to 0.65
Chromium (Cr), % 0
19 to 22
Cobalt (Co), % 0
18.5 to 22
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 96.1 to 99.3
23 to 38.9
Manganese (Mn), % 0 to 1.3
0 to 2.0
Molybdenum (Mo), % 0.4 to 0.65
2.5 to 3.0
Nickel (Ni), % 0 to 0.2
18 to 22
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.3 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
2.0 to 3.0
Residuals, % 0 to 0.5
0