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SAE-AISI H21 Steel vs. EN 1.4869 Casting Alloy

SAE-AISI H21 steel belongs to the iron alloys classification, while EN 1.4869 casting alloy belongs to the nickel alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 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 SAE-AISI H21 steel and the bottom bar is EN 1.4869 casting alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 720 to 1790
540

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Melting Completion (Liquidus), °C 1630
1450
Melting Onset (Solidus), °C 1580
1390
Specific Heat Capacity, J/kg-K 440
460
Thermal Conductivity, W/m-K 27
10
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 23
70
Density, g/cm3 8.5
8.5
Embodied Carbon, kg CO2/kg material 4.5
7.7
Embodied Energy, MJ/kg 68
110
Embodied Water, L/kg 72
300

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 23 to 58
18
Strength to Weight: Bending, points 21 to 38
17
Thermal Diffusivity, mm2/s 7.1
2.6
Thermal Shock Resistance, points 24 to 59
14

Alloy Composition

Carbon (C), % 0.28 to 0.36
0.45 to 0.55
Chromium (Cr), % 3.0 to 3.8
24 to 26
Cobalt (Co), % 0
14 to 16
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 87.6 to 93.8
11.4 to 23.6
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Nickel (Ni), % 0 to 0.3
33 to 37
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.5
1.0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 8.5 to 10
4.0 to 6.0
Vanadium (V), % 0.3 to 0.6
0