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S35125 Stainless Steel vs. ACI-ASTM CB7Cu-1 Steel

Both S35125 stainless steel and ACI-ASTM CB7Cu-1 steel are iron alloys. They have 63% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S35125 stainless steel and the bottom bar is ACI-ASTM CB7Cu-1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
5.7 to 11
Fatigue Strength, MPa 200
420 to 590
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 540
960 to 1350
Tensile Strength: Yield (Proof), MPa 230
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1380
1500
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
13
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.4
2.6
Embodied Energy, MJ/kg 89
38
Embodied Water, L/kg 210
130

Common Calculations

PREN (Pitting Resistance) 30
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1500 to 3590
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
34 to 48
Strength to Weight: Bending, points 18
28 to 35
Thermal Diffusivity, mm2/s 3.1
4.6
Thermal Shock Resistance, points 12
32 to 45

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.070
Chromium (Cr), % 20 to 23
15.5 to 17.7
Copper (Cu), % 0
2.5 to 3.2
Iron (Fe), % 36.2 to 45.8
72.3 to 78.4
Manganese (Mn), % 1.0 to 1.5
0 to 0.7
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 31 to 35
3.6 to 4.6
Niobium (Nb), % 0.25 to 0.6
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030