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ASTM A229 Spring Steel vs. ASTM A216 Cast Steel

Both ASTM A229 spring steel and ASTM A216 cast steel are iron alloys. There are 29 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 A229 spring steel and the bottom bar is ASTM A216 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14
25 to 27
Fatigue Strength, MPa 710 to 790
170 to 230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72
Tensile Strength: Ultimate (UTS), MPa 1690 to 1890
500 to 570
Tensile Strength: Yield (Proof), MPa 1100 to 1230
230 to 310

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1450
1450 to 1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
49 to 52
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.1 to 7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.2 to 8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
18
Embodied Water, L/kg 46
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 3260 to 4080
140 to 250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 60 to 67
18 to 20
Strength to Weight: Bending, points 40 to 43
18 to 20
Thermal Diffusivity, mm2/s 14
13 to 14
Thermal Shock Resistance, points 54 to 60
16 to 18

Comparable Variants