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ASTM A232 Spring Steel vs. EN 2.4669 Nickel

ASTM A232 spring steel belongs to the iron alloys classification, while EN 2.4669 nickel belongs to the nickel alloys. There are 30 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 A232 spring steel and the bottom bar is EN 2.4669 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14
16
Fatigue Strength, MPa 1040
390
Poisson's Ratio 0.29
0.29
Reduction in Area, % 46
31
Shear Modulus, GPa 73
73
Shear Strength, MPa 1090
680
Tensile Strength: Ultimate (UTS), MPa 1790
1110
Tensile Strength: Yield (Proof), MPa 1610
720

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 420
960
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1410
1330
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 52
12
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
60
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 2.0
10
Embodied Energy, MJ/kg 28
150
Embodied Water, L/kg 51
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
160
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 64
37
Strength to Weight: Bending, points 42
28
Thermal Diffusivity, mm2/s 14
3.1
Thermal Shock Resistance, points 53
33

Alloy Composition

Aluminum (Al), % 0
0.4 to 1.0
Carbon (C), % 0.48 to 0.53
0 to 0.080
Chromium (Cr), % 0.8 to 1.1
14 to 17
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 96.8 to 97.7
5.0 to 9.0
Manganese (Mn), % 0.7 to 0.9
0 to 1.0
Nickel (Ni), % 0
65.9 to 77.7
Niobium (Nb), % 0
0.7 to 1.2
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.035
0 to 0.015
Titanium (Ti), % 0
2.3 to 2.8
Vanadium (V), % 0.15 to 0.3
0