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EN 1.4945 Stainless Steel vs. AWS BNi-1a

EN 1.4945 stainless steel belongs to the iron alloys classification, while AWS BNi-1a belongs to the nickel alloys. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is EN 1.4945 stainless steel and the bottom bar is AWS BNi-1a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 77
70
Tensile Strength: Ultimate (UTS), MPa 640 to 740
450

Thermal Properties

Latent Heat of Fusion, J/g 290
370
Melting Completion (Liquidus), °C 1490
1080
Melting Onset (Solidus), °C 1440
980
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 30
55
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 5.0
8.8
Embodied Energy, MJ/kg 73
120
Embodied Water, L/kg 150
240

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 25
16
Strength to Weight: Bending, points 20 to 22
16
Thermal Shock Resistance, points 14 to 16
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
2.8 to 3.5
Carbon (C), % 0.040 to 0.1
0 to 0.060
Chromium (Cr), % 15.5 to 17.5
13 to 15
Cobalt (Co), % 0
0 to 0.1
Iron (Fe), % 57.9 to 65.7
4.0 to 5.0
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 15.5 to 17.5
70.6 to 76.3
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0.3 to 0.6
4.0 to 5.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Tungsten (W), % 2.5 to 3.5
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5