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Nickel 689 vs. ASTM A372 Grade K Steel

Nickel 689 belongs to the nickel alloys classification, while ASTM A372 grade K steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is nickel 689 and the bottom bar is ASTM A372 grade K steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
230
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
23
Fatigue Strength, MPa 420
440
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
73
Shear Strength, MPa 790
490
Tensile Strength: Ultimate (UTS), MPa 1250
780
Tensile Strength: Yield (Proof), MPa 690
620

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 990
440
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
4.4
Density, g/cm3 8.5
7.9
Embodied Carbon, kg CO2/kg material 11
1.8
Embodied Energy, MJ/kg 150
24
Embodied Water, L/kg 330
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
160
Resilience: Unit (Modulus of Resilience), kJ/m3 1170
1010
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 41
27
Strength to Weight: Bending, points 30
24
Thermal Shock Resistance, points 35
23

Alloy Composition

Aluminum (Al), % 0.75 to 1.3
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.1 to 0.2
0 to 0.18
Chromium (Cr), % 18 to 20
1.0 to 1.8
Cobalt (Co), % 9.0 to 11
0
Iron (Fe), % 0 to 5.0
93.4 to 96.6
Manganese (Mn), % 0 to 0.5
0.1 to 0.4
Molybdenum (Mo), % 9.0 to 10.5
0.2 to 0.6
Nickel (Ni), % 48.3 to 60.9
2.0 to 3.3
Phosphorus (P), % 0 to 0.015
0 to 0.015
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 2.3 to 2.8
0