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EN 1.3975 Stainless Steel vs. EN 1.7231 Steel

Both EN 1.3975 stainless steel and EN 1.7231 steel are iron alloys. They have 64% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.3975 stainless steel and the bottom bar is EN 1.7231 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
240 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 27
11 to 12
Fatigue Strength, MPa 230
360 to 500
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 660
790 to 930
Tensile Strength: Yield (Proof), MPa 320
570 to 800

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 910
420
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1320
1420
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.5
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.5
Embodied Energy, MJ/kg 47
20
Embodied Water, L/kg 150
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
87 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 270
870 to 1700
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 24
28 to 33
Strength to Weight: Bending, points 22
24 to 27
Thermal Shock Resistance, points 15
23 to 27

Alloy Composition

Carbon (C), % 0 to 0.050
0.38 to 0.45
Chromium (Cr), % 16 to 18
0.8 to 1.2
Iron (Fe), % 58.2 to 65.4
96.4 to 98.1
Manganese (Mn), % 7.0 to 9.0
0.6 to 1.0
Molybdenum (Mo), % 0 to 1.0
0.15 to 0.3
Nickel (Ni), % 8.0 to 9.0
0
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 3.5 to 4.5
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030