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S40977 Stainless Steel vs. AWS ER80S-B8

Both S40977 stainless steel and AWS ER80S-B8 are iron alloys. They have a very high 97% of their average alloy composition in common. There are 28 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 S40977 stainless steel and the bottom bar is AWS ER80S-B8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
19
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 510
630
Tensile Strength: Yield (Proof), MPa 310
530

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
26
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
6.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
2.0
Embodied Energy, MJ/kg 27
28
Embodied Water, L/kg 97
89

Common Calculations

PREN (Pitting Resistance) 12
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
120
Resilience: Unit (Modulus of Resilience), kJ/m3 250
720
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
22
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 6.7
6.9
Thermal Shock Resistance, points 18
17

Alloy Composition


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Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 10.5 to 12.5
8.0 to 10.5
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 83.9 to 89.2
85.6 to 90.8
Manganese (Mn), % 0 to 1.5
0.4 to 0.7
Molybdenum (Mo), % 0
0.8 to 1.2
Nickel (Ni), % 0.3 to 1.0
0 to 0.5
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.025
Residuals, % 0
0 to 0.5