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AWS ERNiCrFe-5 vs. SAE-AISI H21 Steel

AWS ERNiCrFe-5 belongs to the nickel alloys classification, while SAE-AISI H21 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCrFe-5 and the bottom bar is SAE-AISI H21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 74
76
Tensile Strength: Ultimate (UTS), MPa 630
720 to 1790

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Melting Completion (Liquidus), °C 1390
1630
Melting Onset (Solidus), °C 1340
1580
Specific Heat Capacity, J/kg-K 450
440
Thermal Conductivity, W/m-K 14
27
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 65
23
Density, g/cm3 8.5
8.5
Embodied Carbon, kg CO2/kg material 11
4.5
Embodied Energy, MJ/kg 150
68
Embodied Water, L/kg 250
72

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 20
23 to 58
Strength to Weight: Bending, points 19
21 to 38
Thermal Diffusivity, mm2/s 3.6
7.1
Thermal Shock Resistance, points 19
24 to 59

Alloy Composition

Carbon (C), % 0 to 0.080
0.28 to 0.36
Chromium (Cr), % 14 to 17
3.0 to 3.8
Cobalt (Co), % 0 to 0.12
0
Copper (Cu), % 0 to 0.5
0 to 0.25
Iron (Fe), % 6.0 to 10
87.6 to 93.8
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Nickel (Ni), % 70 to 78.5
0 to 0.3
Niobium (Nb), % 1.5 to 3.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.35
0.15 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
8.5 to 10
Vanadium (V), % 0
0.3 to 0.6
Residuals, % 0 to 0.5
0