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ASTM A387 Grade 9 Steel vs. Nickel 625

ASTM A387 grade 9 steel belongs to the iron alloys classification, while nickel 625 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 9 steel and the bottom bar is nickel 625.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 21
33 to 34
Fatigue Strength, MPa 160 to 240
240 to 320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
79
Shear Strength, MPa 310 to 380
530 to 600
Tensile Strength: Ultimate (UTS), MPa 500 to 600
790 to 910
Tensile Strength: Yield (Proof), MPa 230 to 350
320 to 450

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Maximum Temperature: Mechanical, °C 600
980
Melting Completion (Liquidus), °C 1460
1350
Melting Onset (Solidus), °C 1410
1290
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 26
11
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 10
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
80
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 2.1
14
Embodied Energy, MJ/kg 28
190
Embodied Water, L/kg 87
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
220 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 310
260 to 490
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 18 to 21
26 to 29
Strength to Weight: Bending, points 18 to 20
22 to 24
Thermal Diffusivity, mm2/s 6.9
2.9
Thermal Shock Resistance, points 14 to 17
22 to 25

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Carbon (C), % 0 to 0.15
0 to 0.1
Chromium (Cr), % 8.0 to 10
20 to 23
Cobalt (Co), % 0
0 to 1.0
Iron (Fe), % 87.1 to 90.8
0 to 5.0
Manganese (Mn), % 0.3 to 0.6
0 to 0.5
Molybdenum (Mo), % 0.9 to 1.1
8.0 to 10
Nickel (Ni), % 0
58 to 68.9
Niobium (Nb), % 0
3.2 to 4.2
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0
0 to 0.4
Vanadium (V), % 0 to 0.040
0

Comparable Variants