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ASTM A232 Spring Steel vs. ASTM A217 Cast Steel

Both ASTM A232 spring steel and ASTM A217 cast steel are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A232 spring steel and the bottom bar is ASTM A217 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 540
160 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14
21 to 27
Fatigue Strength, MPa 1040
200 to 320
Poisson's Ratio 0.29
0.28 to 0.29
Reduction in Area, % 46
39 to 50
Shear Modulus, GPa 73
73 to 75
Tensile Strength: Ultimate (UTS), MPa 1790
540 to 710
Tensile Strength: Yield (Proof), MPa 1610
270 to 460

Thermal Properties

Latent Heat of Fusion, J/g 250
250 to 270
Maximum Temperature: Mechanical, °C 420
410 to 600
Melting Completion (Liquidus), °C 1460
1450 to 1460
Melting Onset (Solidus), °C 1410
1410 to 1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
26 to 50
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.3 to 9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.4 to 11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
2.4 to 7.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.5 to 2.1
Embodied Energy, MJ/kg 28
20 to 28
Embodied Water, L/kg 51
47 to 87

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
110 to 130
Stiffness to Weight: Axial, points 13
13 to 14
Stiffness to Weight: Bending, points 24
24 to 25
Strength to Weight: Axial, points 64
19 to 25
Strength to Weight: Bending, points 42
19 to 23
Thermal Diffusivity, mm2/s 14
6.9 to 14
Thermal Shock Resistance, points 53
16 to 20