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ASTM A232 Spring Steel vs. SAE-AISI M62 Steel

Both ASTM A232 spring steel and SAE-AISI M62 steel are iron alloys. They have 78% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is ASTM A232 spring steel and the bottom bar is SAE-AISI M62 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 1790
830 to 2440

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1460
1650
Melting Onset (Solidus), °C 1410
1600
Specific Heat Capacity, J/kg-K 470
430
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
30
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 2.0
10
Embodied Energy, MJ/kg 28
150
Embodied Water, L/kg 51
110

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 64
27 to 80
Strength to Weight: Bending, points 42
23 to 47
Thermal Shock Resistance, points 53
24 to 71

Alloy Composition

Carbon (C), % 0.48 to 0.53
1.3 to 1.4
Chromium (Cr), % 0.8 to 1.1
3.5 to 4.0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 96.8 to 97.7
73.6 to 77.4
Manganese (Mn), % 0.7 to 0.9
0.15 to 0.4
Molybdenum (Mo), % 0
10 to 11
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0.15 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.030
Tungsten (W), % 0
5.8 to 6.5
Vanadium (V), % 0.15 to 0.3
1.8 to 2.1