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ASTM A232 Spring Steel vs. EN 1.5501 Steel

Both ASTM A232 spring steel and EN 1.5501 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 EN 1.5501 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 540
120 to 150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14
12 to 17
Fatigue Strength, MPa 1040
180 to 270
Poisson's Ratio 0.29
0.29
Reduction in Area, % 46
63 to 73
Shear Modulus, GPa 73
73
Shear Strength, MPa 1090
270 to 310
Tensile Strength: Ultimate (UTS), MPa 1790
390 to 510
Tensile Strength: Yield (Proof), MPa 1610
260 to 420

Thermal Properties

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

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
7.9
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 28
18
Embodied Water, L/kg 51
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
40 to 83
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 64
14 to 18
Strength to Weight: Bending, points 42
15 to 18
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 53
11 to 15

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.48 to 0.53
0.13 to 0.16
Chromium (Cr), % 0.8 to 1.1
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 96.8 to 97.7
98.4 to 99.269
Manganese (Mn), % 0.7 to 0.9
0.6 to 0.8
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.3
Sulfur (S), % 0 to 0.035
0 to 0.025
Vanadium (V), % 0.15 to 0.3
0