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EN 1.3956 Stainless Steel vs. AWS E309Nb

Both EN 1.3956 stainless steel and AWS E309Nb are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.3956 stainless steel and the bottom bar is AWS E309Nb.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 27
34
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 650
620

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 22
25
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.8
4.4
Embodied Energy, MJ/kg 68
64
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 34
25
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
22
Strength to Weight: Bending, points 21
21
Thermal Shock Resistance, points 18
16

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.12
Chromium (Cr), % 20.5 to 23.5
22 to 25
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 51.9 to 62.1
54.8 to 64.8
Manganese (Mn), % 4.0 to 6.0
0.5 to 2.5
Molybdenum (Mo), % 1.5 to 3.0
0 to 0.75
Nickel (Ni), % 11.5 to 13.5
12 to 14
Niobium (Nb), % 0.1 to 0.3
0.7 to 1.0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.1 to 0.3
0