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ASTM Grade HP Steel vs. Nickel 689

ASTM grade HP steel belongs to the iron alloys classification, while nickel 689 belongs to the nickel alloys. They have 57% of their average alloy composition in common. There are 26 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 ASTM grade HP steel and the bottom bar is nickel 689.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
350
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 5.1
23
Fatigue Strength, MPa 130
420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 490
1250
Tensile Strength: Yield (Proof), MPa 260
690

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Maximum Temperature: Mechanical, °C 1100
990
Melting Completion (Liquidus), °C 1370
1440
Melting Onset (Solidus), °C 1330
1390
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 34
70
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 5.8
11
Embodied Energy, MJ/kg 82
150
Embodied Water, L/kg 220
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
240
Resilience: Unit (Modulus of Resilience), kJ/m3 170
1170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 17
41
Strength to Weight: Bending, points 17
30
Thermal Shock Resistance, points 11
35

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0.35 to 0.75
0.1 to 0.2
Chromium (Cr), % 24 to 28
18 to 20
Cobalt (Co), % 0
9.0 to 11
Iron (Fe), % 29.2 to 42.7
0 to 5.0
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
9.0 to 10.5
Nickel (Ni), % 33 to 37
48.3 to 60.9
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 2.5
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
2.3 to 2.8