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Nickel 30 vs. ASTM A387 Grade 21 Steel

Nickel 30 belongs to the nickel alloys classification, while ASTM A387 grade 21 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is nickel 30 and the bottom bar is ASTM A387 grade 21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
21
Fatigue Strength, MPa 200
160 to 250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 82
74
Shear Strength, MPa 440
310 to 370
Tensile Strength: Ultimate (UTS), MPa 660
500 to 590
Tensile Strength: Yield (Proof), MPa 270
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Maximum Temperature: Mechanical, °C 1020
480
Melting Completion (Liquidus), °C 1480
1470
Melting Onset (Solidus), °C 1430
1430
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 10
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 60
4.1
Density, g/cm3 8.5
7.9
Embodied Carbon, kg CO2/kg material 9.4
1.8
Embodied Energy, MJ/kg 130
23
Embodied Water, L/kg 290
62

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
84 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 180
140 to 320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
18 to 21
Strength to Weight: Bending, points 20
18 to 20
Thermal Diffusivity, mm2/s 2.7
11
Thermal Shock Resistance, points 18
14 to 17

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.15
Chromium (Cr), % 28 to 31.5
2.8 to 3.3
Cobalt (Co), % 0 to 5.0
0
Copper (Cu), % 1.0 to 2.4
0
Iron (Fe), % 13 to 17
94.4 to 96
Manganese (Mn), % 0 to 0.030
0.3 to 0.6
Molybdenum (Mo), % 4.0 to 6.0
0.9 to 1.1
Nickel (Ni), % 30.2 to 52.2
0
Niobium (Nb), % 0.3 to 1.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.025
Tungsten (W), % 1.5 to 4.0
0