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ASTM A232 Spring Steel vs. SAE-AISI 1086 Steel

Both ASTM A232 spring steel and SAE-AISI 1086 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 1086 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 540
220 to 260
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14
11
Fatigue Strength, MPa 1040
300 to 360
Poisson's Ratio 0.29
0.29
Reduction in Area, % 46
28 to 45
Shear Modulus, GPa 73
72
Shear Strength, MPa 1090
450 to 520
Tensile Strength: Ultimate (UTS), MPa 1790
760 to 870
Tensile Strength: Yield (Proof), MPa 1610
480 to 580

Thermal Properties

Latent Heat of Fusion, J/g 250
240
Maximum Temperature: Mechanical, °C 420
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
50
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 28
19
Embodied Water, L/kg 51
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
79 to 84
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 64
27 to 31
Strength to Weight: Bending, points 42
24 to 26
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 53
26 to 30

Alloy Composition

Carbon (C), % 0.48 to 0.53
0.8 to 0.93
Chromium (Cr), % 0.8 to 1.1
0
Iron (Fe), % 96.8 to 97.7
98.5 to 98.9
Manganese (Mn), % 0.7 to 0.9
0.3 to 0.5
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.035
0 to 0.050
Vanadium (V), % 0.15 to 0.3
0