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SAE-AISI H25 Steel vs. AWS BNi-4

SAE-AISI H25 steel belongs to the iron alloys classification, while AWS BNi-4 belongs to the nickel alloys. There are 19 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 SAE-AISI H25 steel and the bottom bar is AWS BNi-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 79
67
Tensile Strength: Ultimate (UTS), MPa 710 to 1620
430

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Melting Completion (Liquidus), °C 1750
1070
Melting Onset (Solidus), °C 1700
980
Specific Heat Capacity, J/kg-K 420
470
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 38
60
Density, g/cm3 9.1
8.5
Embodied Carbon, kg CO2/kg material 6.2
10
Embodied Energy, MJ/kg 93
140
Embodied Water, L/kg 83
220

Common Calculations

Stiffness to Weight: Axial, points 12
12
Stiffness to Weight: Bending, points 22
22
Strength to Weight: Axial, points 22 to 50
14
Strength to Weight: Bending, points 20 to 34
15
Thermal Shock Resistance, points 22 to 49
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
1.5 to 2.2
Carbon (C), % 0.22 to 0.32
0 to 0.060
Chromium (Cr), % 3.8 to 4.5
0
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 77.2 to 81.3
0 to 1.5
Manganese (Mn), % 0.15 to 0.4
0
Nickel (Ni), % 0 to 0.3
91.4 to 95.5
Phosphorus (P), % 0 to 0.030
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0.15 to 0.4
3.0 to 4.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Tungsten (W), % 14 to 16
0
Vanadium (V), % 0.4 to 0.6
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5