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EN 1.3956 Stainless Steel vs. EN 1.4123 Stainless Steel

Both EN 1.3956 stainless steel and EN 1.4123 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 22 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 EN 1.4123 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 650
720 to 810

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 460
390
Maximum Temperature: Mechanical, °C 1080
840
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
10

Otherwise Unclassified Properties

Base Metal Price, % relative 22
10
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.8
4.2
Embodied Energy, MJ/kg 68
62
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 34
24
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
26 to 29
Strength to Weight: Bending, points 21
23 to 25
Thermal Shock Resistance, points 18
26 to 29

Alloy Composition

Carbon (C), % 0 to 0.060
0.35 to 0.5
Chromium (Cr), % 20.5 to 23.5
14 to 16.5
Iron (Fe), % 51.9 to 62.1
76.7 to 84.6
Manganese (Mn), % 4.0 to 6.0
0 to 1.0
Molybdenum (Mo), % 1.5 to 3.0
1.0 to 2.5
Nickel (Ni), % 11.5 to 13.5
0 to 0.5
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0.1 to 0.3
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 to 1.5