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S82121 Stainless Steel vs. AWS E316H

Both S82121 stainless steel and AWS E316H are iron alloys. They have 89% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is S82121 stainless steel and the bottom bar is AWS E316H.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
34
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 730
580

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 14
20
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.8
4.0
Embodied Energy, MJ/kg 40
55
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 28
27
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
21
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 20
15

Alloy Composition

Carbon (C), % 0 to 0.035
0.040 to 0.080
Chromium (Cr), % 21 to 23
17 to 20
Copper (Cu), % 0.2 to 1.2
0 to 0.75
Iron (Fe), % 66.7 to 75.4
58.6 to 69.5
Manganese (Mn), % 1.0 to 2.5
0.5 to 2.5
Molybdenum (Mo), % 0.3 to 1.3
2.0 to 3.0
Nickel (Ni), % 2.0 to 4.0
11 to 14
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030