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Nickel 689 vs. ASTM Grade HC Steel

Nickel 689 belongs to the nickel alloys classification, while ASTM grade HC steel belongs to the iron alloys. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
6.0
Fatigue Strength, MPa 420
96
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 1250
430
Tensile Strength: Yield (Proof), MPa 690
200

Thermal Properties

Latent Heat of Fusion, J/g 330
310
Maximum Temperature: Mechanical, °C 990
1100
Melting Completion (Liquidus), °C 1440
1410
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 450
490
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 70
14
Density, g/cm3 8.5
7.6
Embodied Carbon, kg CO2/kg material 11
2.8
Embodied Energy, MJ/kg 150
40
Embodied Water, L/kg 330
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
21
Resilience: Unit (Modulus of Resilience), kJ/m3 1170
95
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 41
16
Strength to Weight: Bending, points 30
16
Thermal Shock Resistance, points 35
14

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 0.5
Chromium (Cr), % 18 to 20
26 to 30
Cobalt (Co), % 9.0 to 11
0
Iron (Fe), % 0 to 5.0
61.9 to 74
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 9.0 to 10.5
0 to 0.5
Nickel (Ni), % 48.3 to 60.9
0 to 4.0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.040
Titanium (Ti), % 2.3 to 2.8
0