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SAE-AISI A4 Steel vs. SAE-AISI 51B60 Steel

Both SAE-AISI A4 steel and SAE-AISI 51B60 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A4 steel and the bottom bar is SAE-AISI 51B60 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 73
73
Tensile Strength: Ultimate (UTS), MPa 710 to 2050
660

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
43
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.4
Embodied Energy, MJ/kg 24
19
Embodied Water, L/kg 59
49

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 73
23
Strength to Weight: Bending, points 23 to 46
22
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 23 to 67
19

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 1.0 to 1.1
0.56 to 0.64
Chromium (Cr), % 0.9 to 2.2
0.7 to 0.9
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 92 to 95.5
97 to 97.8
Manganese (Mn), % 1.8 to 2.2
0.75 to 1.0
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040

Comparable Variants