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EN 1.4650 Stainless Steel vs. EN 1.4122 Stainless Steel

Both EN 1.4650 stainless steel and EN 1.4122 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4650 stainless steel and the bottom bar is EN 1.4122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 48
14
Fatigue Strength, MPa 230
260 to 360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 440
480 to 520
Tensile Strength: Ultimate (UTS), MPa 620
790 to 850
Tensile Strength: Yield (Proof), MPa 240
450 to 630

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
400
Maximum Temperature: Mechanical, °C 970
870
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.1
2.4
Embodied Energy, MJ/kg 43
33
Embodied Water, L/kg 150
120

Common Calculations

PREN (Pitting Resistance) 20
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
93 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
520 to 1000
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
28 to 31
Strength to Weight: Bending, points 21
25 to 26
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 14
28 to 30

Alloy Composition

Carbon (C), % 0 to 0.030
0.33 to 0.45
Chromium (Cr), % 18.5 to 20
15.5 to 17.5
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 65.8 to 72.5
77.2 to 83.4
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0
0.8 to 1.3
Nickel (Ni), % 9.0 to 10
0 to 1.0
Nitrogen (N), % 0 to 0.080
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015