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EN 1.4122 Stainless Steel vs. S32950 Stainless Steel

Both EN 1.4122 stainless steel and S32950 stainless steel are iron alloys. They have 84% 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 1.4122 stainless steel and the bottom bar is S32950 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14
17
Fatigue Strength, MPa 260 to 360
330
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 480 to 520
480
Tensile Strength: Ultimate (UTS), MPa 790 to 850
780
Tensile Strength: Yield (Proof), MPa 450 to 630
550

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 400
460
Maximum Temperature: Mechanical, °C 870
1100
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
17
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.4
3.4
Embodied Energy, MJ/kg 33
47
Embodied Water, L/kg 120
180

Common Calculations

PREN (Pitting Resistance) 20
37
Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 520 to 1000
730
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 31
28
Strength to Weight: Bending, points 25 to 26
24
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 28 to 30
21

Alloy Composition

Carbon (C), % 0.33 to 0.45
0 to 0.030
Chromium (Cr), % 15.5 to 17.5
26 to 29
Iron (Fe), % 77.2 to 83.4
60.3 to 69.4
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0.8 to 1.3
1.0 to 2.5
Nickel (Ni), % 0 to 1.0
3.5 to 5.2
Nitrogen (N), % 0
0.15 to 0.35
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.010