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ASTM A229 Spring Steel vs. Nickel 601

ASTM A229 spring steel belongs to the iron alloys classification, while nickel 601 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A229 spring steel and the bottom bar is nickel 601.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
10 to 38
Fatigue Strength, MPa 710 to 790
220 to 380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Shear Strength, MPa 1020 to 1140
440 to 530
Tensile Strength: Ultimate (UTS), MPa 1690 to 1890
660 to 890
Tensile Strength: Yield (Proof), MPa 1100 to 1230
290 to 800

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
11
Thermal Expansion, µm/m-K 12
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
49
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.4
8.0
Embodied Energy, MJ/kg 19
110
Embodied Water, L/kg 46
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
86 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 3260 to 4080
210 to 1630
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 60 to 67
22 to 30
Strength to Weight: Bending, points 40 to 43
20 to 25
Thermal Diffusivity, mm2/s 14
2.8
Thermal Shock Resistance, points 54 to 60
17 to 23

Alloy Composition

Aluminum (Al), % 0
1.0 to 1.7
Carbon (C), % 0.55 to 0.85
0 to 0.1
Chromium (Cr), % 0
21 to 25
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 97.5 to 99
7.7 to 20
Manganese (Mn), % 0.3 to 1.2
0 to 1.0
Nickel (Ni), % 0
58 to 63
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.015

Comparable Variants