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EN 1.4123 Stainless Steel vs. EN 1.3956 Stainless Steel

Both EN 1.4123 stainless steel and EN 1.3956 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 1.4123 stainless steel and the bottom bar is EN 1.3956 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 77
79
Tensile Strength: Ultimate (UTS), MPa 720 to 810
650

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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