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EN 1.4646 Stainless Steel vs. EN 1.4123 Stainless Steel

Both EN 1.4646 stainless steel and EN 1.4123 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.4646 stainless steel and the bottom bar is EN 1.4123 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
220 to 250
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 750
720 to 810

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 910
840
Melting Completion (Liquidus), °C 1390
1450
Melting Onset (Solidus), °C 1340
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
10

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.8
4.2
Embodied Energy, MJ/kg 41
62
Embodied Water, L/kg 160
120

Common Calculations

PREN (Pitting Resistance) 23
24
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
26 to 29
Strength to Weight: Bending, points 24
23 to 25
Thermal Shock Resistance, points 16
26 to 29

Alloy Composition

Carbon (C), % 0.020 to 0.1
0.35 to 0.5
Chromium (Cr), % 17 to 19
14 to 16.5
Copper (Cu), % 1.5 to 3.0
0
Iron (Fe), % 59 to 67.3
76.7 to 84.6
Manganese (Mn), % 10.5 to 12.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
1.0 to 2.5
Nickel (Ni), % 3.5 to 4.5
0 to 0.5
Nitrogen (N), % 0.2 to 0.3
0.1 to 0.3
Phosphorus (P), % 0 to 0.050
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0
0 to 1.5