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ASTM Grade HI Steel vs. EN 2.4669 Nickel

ASTM grade HI steel belongs to the iron alloys classification, while EN 2.4669 nickel belongs to the nickel alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 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 HI steel and the bottom bar is EN 2.4669 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
16
Fatigue Strength, MPa 150
390
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 550
1110
Tensile Strength: Yield (Proof), MPa 270
720

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1400
1380
Melting Onset (Solidus), °C 1350
1330
Specific Heat Capacity, J/kg-K 490
460
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 17
13

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
60
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 4.1
10
Embodied Energy, MJ/kg 59
150
Embodied Water, L/kg 200
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
160
Resilience: Unit (Modulus of Resilience), kJ/m3 180
1380
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 20
37
Strength to Weight: Bending, points 19
28
Thermal Diffusivity, mm2/s 3.9
3.1
Thermal Shock Resistance, points 12
33

Alloy Composition

Aluminum (Al), % 0
0.4 to 1.0
Carbon (C), % 0.2 to 0.5
0 to 0.080
Chromium (Cr), % 26 to 30
14 to 17
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 46.9 to 59.8
5.0 to 9.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 14 to 18
65.9 to 77.7
Niobium (Nb), % 0
0.7 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
2.3 to 2.8