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EN 1.3961 Alloy vs. SAE-AISI A7 Steel

Both EN 1.3961 alloy and SAE-AISI A7 steel are iron alloys. They have 64% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.3961 alloy and the bottom bar is SAE-AISI A7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 72
72
Tensile Strength: Ultimate (UTS), MPa 450
800 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1390
1430
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 1.3
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
10
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 4.8
13
Embodied Energy, MJ/kg 66
200
Embodied Water, L/kg 110
100

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 15
29 to 77
Strength to Weight: Bending, points 16
25 to 48
Thermal Shock Resistance, points 130
27 to 72

Alloy Composition

Carbon (C), % 0 to 0.050
2.0 to 2.9
Chromium (Cr), % 0 to 0.25
5.0 to 5.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 60.7 to 65
81.4 to 87.7
Manganese (Mn), % 0 to 0.5
0 to 0.8
Molybdenum (Mo), % 0 to 1.0
0.9 to 1.4
Nickel (Ni), % 35 to 37
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 0
0.5 to 1.5
Vanadium (V), % 0
3.9 to 5.2