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Nickel 693 vs. ASTM A232 Spring Steel

Nickel 693 belongs to the nickel alloys classification, while ASTM A232 spring steel belongs to the iron alloys. There are 27 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 nickel 693 and the bottom bar is ASTM A232 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
14
Fatigue Strength, MPa 230
1040
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 440
1090
Tensile Strength: Ultimate (UTS), MPa 660
1790
Tensile Strength: Yield (Proof), MPa 310
1610

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 1010
420
Melting Completion (Liquidus), °C 1350
1460
Melting Onset (Solidus), °C 1310
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 9.1
52
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 60
2.3
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 9.9
2.0
Embodied Energy, MJ/kg 140
28
Embodied Water, L/kg 320
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23
64
Strength to Weight: Bending, points 21
42
Thermal Diffusivity, mm2/s 2.3
14
Thermal Shock Resistance, points 19
53

Alloy Composition

Aluminum (Al), % 2.5 to 4.0
0
Carbon (C), % 0 to 0.15
0.48 to 0.53
Chromium (Cr), % 27 to 31
0.8 to 1.1
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 2.5 to 6.0
96.8 to 97.7
Manganese (Mn), % 0 to 1.0
0.7 to 0.9
Nickel (Ni), % 53.3 to 67.5
0
Niobium (Nb), % 0.5 to 2.5
0
Phosphorus (P), % 0
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
Titanium (Ti), % 0 to 1.0
0
Vanadium (V), % 0
0.15 to 0.3