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ASTM A229 Spring Steel vs. EN 2.4669 Nickel

ASTM A229 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 A229 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 710 to 790
390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 1020 to 1140
680
Tensile Strength: Ultimate (UTS), MPa 1690 to 1890
1110
Tensile Strength: Yield (Proof), MPa 1100 to 1230
720

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
960
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1410
1330
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 50
12
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
60
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.4
10
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 46
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
160
Resilience: Unit (Modulus of Resilience), kJ/m3 3260 to 4080
1380
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 60 to 67
37
Strength to Weight: Bending, points 40 to 43
28
Thermal Diffusivity, mm2/s 14
3.1
Thermal Shock Resistance, points 54 to 60
33

Alloy Composition

Aluminum (Al), % 0
0.4 to 1.0
Carbon (C), % 0.55 to 0.85
0 to 0.080
Chromium (Cr), % 0
14 to 17
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 97.5 to 99
5.0 to 9.0
Manganese (Mn), % 0.3 to 1.2
0 to 1.0
Nickel (Ni), % 0
65.9 to 77.7
Niobium (Nb), % 0
0.7 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.015
Titanium (Ti), % 0
2.3 to 2.8