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SAE-AISI S7 Steel vs. SAE-AISI A10 Steel

Both SAE-AISI S7 steel and SAE-AISI A10 steel are iron alloys. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is SAE-AISI S7 steel and the bottom bar is SAE-AISI A10 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
72
Tensile Strength: Ultimate (UTS), MPa 670 to 2030
810 to 2040

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
40
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
5.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.3
2.1
Embodied Energy, MJ/kg 31
27
Embodied Water, L/kg 65
56

Common Calculations

PREN (Pitting Resistance) 8.4
5.1
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 72
29 to 73
Strength to Weight: Bending, points 22 to 46
25 to 46
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 22 to 66
27 to 68

Alloy Composition

Carbon (C), % 0.45 to 0.55
1.3 to 1.5
Chromium (Cr), % 3.0 to 3.5
0
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 91.6 to 94.9
90.8 to 93.4
Manganese (Mn), % 0.2 to 0.9
1.6 to 2.1
Molybdenum (Mo), % 1.3 to 1.8
1.3 to 1.8
Nickel (Ni), % 0
1.6 to 2.1
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 1.0
1.0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 0.3
0

Comparable Variants