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ASTM A227 Spring Steel vs. EN 2.4879 Cast Nickel

ASTM A227 spring steel belongs to the iron alloys classification, while EN 2.4879 cast nickel belongs to the nickel alloys. There are 26 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 ASTM A227 spring steel and the bottom bar is EN 2.4879 cast nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12
3.4
Fatigue Strength, MPa 900 to 1160
110
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
80
Tensile Strength: Ultimate (UTS), MPa 1720 to 2220
490
Tensile Strength: Yield (Proof), MPa 1430 to 1850
270

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 400
1150
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 52
11
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
55
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 1.4
8.3
Embodied Energy, MJ/kg 19
120
Embodied Water, L/kg 46
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 260
14
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 61 to 79
16
Strength to Weight: Bending, points 41 to 48
16
Thermal Diffusivity, mm2/s 14
2.8
Thermal Shock Resistance, points 55 to 71
13

Alloy Composition

Carbon (C), % 0.45 to 0.85
0.35 to 0.55
Chromium (Cr), % 0
27 to 30
Iron (Fe), % 97.4 to 99.1
9.4 to 20.7
Manganese (Mn), % 0.3 to 1.3
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
47 to 50
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0.15 to 0.35
1.0 to 2.0
Sulfur (S), % 0 to 0.050
0 to 0.030
Tungsten (W), % 0
4.0 to 6.0