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EN 1.4123 Stainless Steel vs. EN 1.4378 Stainless Steel

Both EN 1.4123 stainless steel and EN 1.4378 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 23 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 1.4378 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
190 to 340
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 720 to 810
760 to 1130

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 840
910
Melting Completion (Liquidus), °C 1450
1390
Melting Onset (Solidus), °C 1410
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 10
17

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 4.2
2.7
Embodied Energy, MJ/kg 62
39
Embodied Water, L/kg 120
150

Common Calculations

PREN (Pitting Resistance) 24
23
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26 to 29
28 to 41
Strength to Weight: Bending, points 23 to 25
24 to 31
Thermal Shock Resistance, points 26 to 29
16 to 23

Alloy Composition

Carbon (C), % 0.35 to 0.5
0 to 0.080
Chromium (Cr), % 14 to 16.5
17 to 19
Iron (Fe), % 76.7 to 84.6
61.2 to 69
Manganese (Mn), % 0 to 1.0
11.5 to 14.5
Molybdenum (Mo), % 1.0 to 2.5
0
Nickel (Ni), % 0 to 0.5
2.3 to 3.7
Nitrogen (N), % 0.1 to 0.3
0.2 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.060
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