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EN 1.4988 Stainless Steel vs. AWS ER80S-Ni2

Both EN 1.4988 stainless steel and AWS ER80S-Ni2 are iron alloys. They have 69% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4988 stainless steel and the bottom bar is AWS ER80S-Ni2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
27
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 640
620
Tensile Strength: Yield (Proof), MPa 290
540

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 23
3.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 6.0
1.6
Embodied Energy, MJ/kg 89
22
Embodied Water, L/kg 150
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
160
Resilience: Unit (Modulus of Resilience), kJ/m3 210
770
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
22
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 14
18

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.12
Chromium (Cr), % 15.5 to 17.5
0
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 62.1 to 69.5
94.2 to 97.6
Manganese (Mn), % 0 to 1.5
0 to 1.3
Molybdenum (Mo), % 1.1 to 1.5
0
Nickel (Ni), % 12.5 to 14.5
2.0 to 2.8
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.3 to 0.6
0.4 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0.6 to 0.85
0
Residuals, % 0
0 to 0.5