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ASTM A387 Grade 21 Steel vs. EN 1.4889 Cast Nickel

ASTM A387 grade 21 steel belongs to the iron alloys classification, while EN 1.4889 cast nickel belongs to the nickel alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 21 steel and the bottom bar is EN 1.4889 cast nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
3.4
Fatigue Strength, MPa 160 to 250
110
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
79
Tensile Strength: Ultimate (UTS), MPa 500 to 590
500
Tensile Strength: Yield (Proof), MPa 230 to 350
270

Thermal Properties

Latent Heat of Fusion, J/g 260
350
Maximum Temperature: Mechanical, °C 480
1160
Melting Completion (Liquidus), °C 1470
1360
Melting Onset (Solidus), °C 1430
1320
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
55
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.8
8.5
Embodied Energy, MJ/kg 23
120
Embodied Water, L/kg 62
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 110
14
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
18
Strength to Weight: Bending, points 18 to 20
18
Thermal Shock Resistance, points 14 to 17
13

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.35 to 0.45
Chromium (Cr), % 2.8 to 3.3
32.5 to 37.5
Iron (Fe), % 94.4 to 96
10.5 to 21.2
Manganese (Mn), % 0.3 to 0.6
1.0 to 1.5
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
42 to 46
Niobium (Nb), % 0
1.5 to 2.0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
1.5 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.030