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AWS BNi-4 vs. Grade 200 Maraging Steel

AWS BNi-4 belongs to the nickel alloys classification, while grade 200 maraging steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-4 and the bottom bar is grade 200 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Poisson's Ratio 0.31
0.3
Shear Modulus, GPa 67
74
Tensile Strength: Ultimate (UTS), MPa 430
970 to 1500

Thermal Properties

Latent Heat of Fusion, J/g 340
260
Melting Completion (Liquidus), °C 1070
1460
Melting Onset (Solidus), °C 980
1420
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 60
31
Density, g/cm3 8.5
8.2
Embodied Carbon, kg CO2/kg material 10
4.5
Embodied Energy, MJ/kg 140
59
Embodied Water, L/kg 220
140

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 14
33 to 51
Strength to Weight: Bending, points 15
27 to 35
Thermal Shock Resistance, points 16
29 to 45

Alloy Composition

Aluminum (Al), % 0 to 0.050
0.050 to 0.15
Boron (B), % 1.5 to 2.2
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0 to 0.060
0 to 0.030
Cobalt (Co), % 0 to 0.1
8.0 to 9.0
Iron (Fe), % 0 to 1.5
67.8 to 71.8
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0
3.0 to 3.5
Nickel (Ni), % 91.4 to 95.5
17 to 19
Phosphorus (P), % 0 to 0.020
0 to 0.010
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 3.0 to 4.0
0 to 0.1
Sulfur (S), % 0 to 0.020
0 to 0.010
Titanium (Ti), % 0 to 0.050
0.15 to 0.25
Zirconium (Zr), % 0 to 0.050
0 to 0.020
Residuals, % 0 to 0.5
0