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ASTM Grade HI Steel vs. Nickel 617

ASTM grade HI steel belongs to the iron alloys classification, while nickel 617 belongs to the nickel alloys. They have 41% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HI steel and the bottom bar is nickel 617.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 11
40
Fatigue Strength, MPa 150
220
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 550
740
Tensile Strength: Yield (Proof), MPa 270
280

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Maximum Temperature: Mechanical, °C 1100
1010
Melting Completion (Liquidus), °C 1400
1380
Melting Onset (Solidus), °C 1350
1330
Specific Heat Capacity, J/kg-K 490
450
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 23
75
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 4.1
10
Embodied Energy, MJ/kg 59
140
Embodied Water, L/kg 200
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
230
Resilience: Unit (Modulus of Resilience), kJ/m3 180
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 20
24
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 3.9
3.5
Thermal Shock Resistance, points 12
21

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.5
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0.2 to 0.5
0.050 to 0.15
Chromium (Cr), % 26 to 30
20 to 24
Cobalt (Co), % 0
10 to 15
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 46.9 to 59.8
0 to 3.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
8.0 to 10
Nickel (Ni), % 14 to 18
44.5 to 62
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015