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S21603 Stainless Steel vs. AWS ERNiCu-7

S21603 stainless steel belongs to the iron alloys classification, while AWS ERNiCu-7 belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Elongation at Break, % 45
34
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 79
61
Tensile Strength: Ultimate (UTS), MPa 690
550

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1420
1280
Melting Onset (Solidus), °C 1380
1240
Specific Heat Capacity, J/kg-K 480
440
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 17
50
Density, g/cm3 7.7
8.7
Embodied Carbon, kg CO2/kg material 3.6
8.5
Embodied Energy, MJ/kg 50
120
Embodied Water, L/kg 160
250

Common Calculations

Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 22
17
Thermal Shock Resistance, points 15
19

Alloy Composition

Aluminum (Al), % 0
0 to 1.3
Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 17.5 to 22
0
Copper (Cu), % 0
18.3 to 36.5
Iron (Fe), % 57.6 to 67.8
0 to 2.5
Manganese (Mn), % 7.5 to 9.0
0 to 4.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 5.0 to 7.0
62 to 69
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 1.3
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
1.5 to 3.0
Residuals, % 0
0 to 0.5