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EN 1.4981 Stainless Steel vs. AWS ER80S-B6

Both EN 1.4981 stainless steel and AWS ER80S-B6 are iron alloys. They have 70% 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 1.4981 stainless steel and the bottom bar is AWS ER80S-B6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
19
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 610
620
Tensile Strength: Yield (Proof), MPa 240
540

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
40
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 25
4.7
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.8
1.8
Embodied Energy, MJ/kg 67
24
Embodied Water, L/kg 150
71

Common Calculations

PREN (Pitting Resistance) 22
7.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
750
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 4.3
11
Thermal Shock Resistance, points 14
18

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.1
Chromium (Cr), % 15.5 to 17.5
4.5 to 6.0
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 59.6 to 66.7
90.6 to 94.7
Manganese (Mn), % 0 to 1.5
0.4 to 0.7
Molybdenum (Mo), % 1.6 to 2.0
0.45 to 0.65
Nickel (Ni), % 15.5 to 17.5
0 to 0.6
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.3 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.025
Residuals, % 0
0 to 0.5