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EN 1.4123 Stainless Steel vs. EN 1.4905 Stainless Steel

Both EN 1.4123 stainless steel and EN 1.4905 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 1.4905 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 720 to 810
740

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 390
380
Maximum Temperature: Mechanical, °C 840
660
Melting Completion (Liquidus), °C 1450
1480
Melting Onset (Solidus), °C 1410
1440
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
26
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
4.2

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 4.2
2.8
Embodied Energy, MJ/kg 62
40
Embodied Water, L/kg 120
90

Common Calculations

PREN (Pitting Resistance) 24
15
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 29
26
Strength to Weight: Bending, points 23 to 25
23
Thermal Diffusivity, mm2/s 6.3
7.0
Thermal Shock Resistance, points 26 to 29
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Boron (B), % 0
0.00050 to 0.0050
Carbon (C), % 0.35 to 0.5
0.090 to 0.13
Chromium (Cr), % 14 to 16.5
8.5 to 9.5
Iron (Fe), % 76.7 to 84.6
86.2 to 88.8
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 1.0 to 2.5
0.9 to 1.1
Nickel (Ni), % 0 to 0.5
0.1 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0.1 to 0.3
0.050 to 0.090
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0.1 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 0
0.9 to 1.1
Vanadium (V), % 0 to 1.5
0.18 to 0.25