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ASTM A232 Spring Steel vs. EN 1.4527 Stainless Steel

Both ASTM A232 spring steel and EN 1.4527 stainless steel are iron alloys. They have 45% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (8, 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 1.4527 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 540
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
40
Fatigue Strength, MPa 1040
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 1790
480
Tensile Strength: Yield (Proof), MPa 1610
190

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 420
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
32
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.0
5.6
Embodied Energy, MJ/kg 28
78
Embodied Water, L/kg 51
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 64
17
Strength to Weight: Bending, points 42
17
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 53
12

Alloy Composition

Carbon (C), % 0.48 to 0.53
0 to 0.060
Chromium (Cr), % 0.8 to 1.1
19 to 22
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 96.8 to 97.7
37.4 to 48.5
Manganese (Mn), % 0.7 to 0.9
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
27.5 to 30.5
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 1.5
Sulfur (S), % 0 to 0.035
0 to 0.030
Vanadium (V), % 0.15 to 0.3
0