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ASTM A232 Spring Steel vs. SAE-AISI T6 Steel

Both ASTM A232 spring steel and SAE-AISI T6 steel are iron alloys. They have 62% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, 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 T6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 1790
880 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1460
1830
Melting Onset (Solidus), °C 1410
1770
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 52
18
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
70
Density, g/cm3 7.8
9.5
Embodied Carbon, kg CO2/kg material 2.0
11
Embodied Energy, MJ/kg 28
170
Embodied Water, L/kg 51
160

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 64
26 to 63
Strength to Weight: Bending, points 42
21 to 39
Thermal Diffusivity, mm2/s 14
4.7
Thermal Shock Resistance, points 53
26 to 64

Alloy Composition

Carbon (C), % 0.48 to 0.53
0.75 to 0.85
Chromium (Cr), % 0.8 to 1.1
4.0 to 4.8
Cobalt (Co), % 0
11 to 13
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 96.8 to 97.7
55.9 to 63.5
Manganese (Mn), % 0.7 to 0.9
0.2 to 0.4
Molybdenum (Mo), % 0
0.4 to 1.0
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0.2 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.030
Tungsten (W), % 0
18.5 to 21
Vanadium (V), % 0.15 to 0.3
1.5 to 2.1