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SAE-AISI S7 Steel vs. EN 1.3975 Stainless Steel

Both SAE-AISI S7 steel and EN 1.3975 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S7 steel and the bottom bar is EN 1.3975 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Tensile Strength: Ultimate (UTS), MPa 670 to 2030
660

Thermal Properties

Latent Heat of Fusion, J/g 260
340
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1420
1320
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
15
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 2.3
3.3
Embodied Energy, MJ/kg 31
47
Embodied Water, L/kg 65
150

Common Calculations

PREN (Pitting Resistance) 8.4
21
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 24 to 72
24
Strength to Weight: Bending, points 22 to 46
22
Thermal Shock Resistance, points 22 to 66
15

Alloy Composition

Carbon (C), % 0.45 to 0.55
0 to 0.050
Chromium (Cr), % 3.0 to 3.5
16 to 18
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 91.6 to 94.9
58.2 to 65.4
Manganese (Mn), % 0.2 to 0.9
7.0 to 9.0
Molybdenum (Mo), % 1.3 to 1.8
0 to 1.0
Nickel (Ni), % 0
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.2 to 1.0
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 0.3
0