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ASTM A232 Spring Steel vs. SAE-AISI 1017 Steel

Both ASTM A232 spring steel and SAE-AISI 1017 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 1017 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 540
120 to 130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14
20 to 30
Fatigue Strength, MPa 1040
170 to 270
Poisson's Ratio 0.29
0.29
Reduction in Area, % 46
46 to 56
Shear Modulus, GPa 73
73
Shear Strength, MPa 1090
280 to 290
Tensile Strength: Ultimate (UTS), MPa 1790
420 to 460
Tensile Strength: Yield (Proof), MPa 1610
220 to 390

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
400
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
53
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 28
18
Embodied Water, L/kg 51
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
88 to 110
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 64
15 to 16
Strength to Weight: Bending, points 42
16 to 17
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 53
13 to 14

Alloy Composition

Carbon (C), % 0.48 to 0.53
0.15 to 0.2
Chromium (Cr), % 0.8 to 1.1
0
Iron (Fe), % 96.8 to 97.7
99.11 to 99.55
Manganese (Mn), % 0.7 to 0.9
0.3 to 0.6
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