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AISI 302B Stainless Steel vs. AWS ERNiCu-7

AISI 302B stainless steel belongs to the iron alloys classification, while AWS ERNiCu-7 belongs to the nickel alloys. 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 AISI 302B 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 76
61
Tensile Strength: Ultimate (UTS), MPa 580
550

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Melting Completion (Liquidus), °C 1400
1280
Melting Onset (Solidus), °C 1360
1240
Specific Heat Capacity, J/kg-K 490
440
Thermal Conductivity, W/m-K 17
20
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 15
50
Density, g/cm3 7.7
8.7
Embodied Carbon, kg CO2/kg material 3.0
8.5
Embodied Energy, MJ/kg 43
120
Embodied Water, L/kg 140
250

Common Calculations

Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 21
18
Strength to Weight: Bending, points 20
17
Thermal Diffusivity, mm2/s 4.4
5.3
Thermal Shock Resistance, points 13
19

Alloy Composition

Aluminum (Al), % 0
0 to 1.3
Carbon (C), % 0 to 0.15
0 to 0.15
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
18.3 to 36.5
Iron (Fe), % 65.7 to 73
0 to 2.5
Manganese (Mn), % 0 to 2.0
0 to 4.0
Nickel (Ni), % 8.0 to 10
62 to 69
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 2.0 to 3.0
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