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SAE-AISI A3 Steel vs. EN 1.3975 Stainless Steel

Both SAE-AISI A3 steel and EN 1.3975 stainless steel are iron alloys. They have 68% 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 A3 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 73
76
Tensile Strength: Ultimate (UTS), MPa 700 to 2150
660

Thermal Properties

Latent Heat of Fusion, J/g 260
340
Melting Completion (Liquidus), °C 1450
1360
Melting Onset (Solidus), °C 1410
1320
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 6.0
15
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 4.4
3.3
Embodied Energy, MJ/kg 67
47
Embodied Water, L/kg 78
150

Common Calculations

PREN (Pitting Resistance) 8.9
21
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 25 to 77
24
Strength to Weight: Bending, points 23 to 48
22
Thermal Shock Resistance, points 23 to 70
15

Alloy Composition

Carbon (C), % 1.2 to 1.3
0 to 0.050
Chromium (Cr), % 4.8 to 5.5
16 to 18
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 88.7 to 92
58.2 to 65.4
Manganese (Mn), % 0.4 to 0.6
7.0 to 9.0
Molybdenum (Mo), % 0.9 to 1.4
0 to 1.0
Nickel (Ni), % 0 to 0.3
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 to 0.5
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.8 to 1.4
0