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EN 1.4529 Stainless Steel vs. ASTM A232 Spring Steel

Both EN 1.4529 stainless steel and ASTM A232 spring steel are iron alloys. They have 48% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4529 stainless steel and the bottom bar is ASTM A232 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
540
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 43
14
Fatigue Strength, MPa 310
1040
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Shear Strength, MPa 520
1090
Tensile Strength: Ultimate (UTS), MPa 750
1790
Tensile Strength: Yield (Proof), MPa 340
1610

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
52
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 33
2.3
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.2
2.0
Embodied Energy, MJ/kg 84
28
Embodied Water, L/kg 200
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
64
Strength to Weight: Bending, points 23
42
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 17
53

Alloy Composition

Carbon (C), % 0 to 0.020
0.48 to 0.53
Chromium (Cr), % 19 to 21
0.8 to 1.1
Copper (Cu), % 0.5 to 1.5
0
Iron (Fe), % 42.7 to 50.4
96.8 to 97.7
Manganese (Mn), % 0 to 1.0
0.7 to 0.9
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 24 to 26
0
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.035
Vanadium (V), % 0
0.15 to 0.3