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S21800 Stainless Steel vs. AWS ER80S-B6

Both S21800 stainless steel and AWS ER80S-B6 are iron alloys. They have 69% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is S21800 stainless steel and the bottom bar is AWS ER80S-B6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 40
19
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
74
Tensile Strength: Ultimate (UTS), MPa 740
620
Tensile Strength: Yield (Proof), MPa 390
540

Thermal Properties

Latent Heat of Fusion, J/g 340
260
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1310
1410
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 15
4.7
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.8
Embodied Energy, MJ/kg 45
24
Embodied Water, L/kg 150
71

Common Calculations

PREN (Pitting Resistance) 19
7.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
110
Resilience: Unit (Modulus of Resilience), kJ/m3 390
750
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 27
22
Strength to Weight: Bending, points 24
21
Thermal Shock Resistance, points 17
18

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.1
Chromium (Cr), % 16 to 18
4.5 to 6.0
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 59.1 to 65.4
90.6 to 94.7
Manganese (Mn), % 7.0 to 9.0
0.4 to 0.7
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 8.0 to 9.0
0 to 0.6
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0 to 0.025
Silicon (Si), % 3.5 to 4.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025
Residuals, % 0
0 to 0.5