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EN 1.4122 Stainless Steel vs. S39277 Stainless Steel

Both EN 1.4122 stainless steel and S39277 stainless steel are iron alloys. They have 79% 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 S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14
28
Fatigue Strength, MPa 260 to 360
480
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 480 to 520
600
Tensile Strength: Ultimate (UTS), MPa 790 to 850
930
Tensile Strength: Yield (Proof), MPa 450 to 630
660

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 400
450
Maximum Temperature: Mechanical, °C 870
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 10
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.4
4.2
Embodied Energy, MJ/kg 33
59
Embodied Water, L/kg 120
180

Common Calculations

PREN (Pitting Resistance) 20
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 110
240
Resilience: Unit (Modulus of Resilience), kJ/m3 520 to 1000
1070
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 31
33
Strength to Weight: Bending, points 25 to 26
27
Thermal Diffusivity, mm2/s 4.0
4.2
Thermal Shock Resistance, points 28 to 30
26

Alloy Composition

Carbon (C), % 0.33 to 0.45
0 to 0.025
Chromium (Cr), % 15.5 to 17.5
24 to 26
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 77.2 to 83.4
56.8 to 64.3
Manganese (Mn), % 0 to 1.5
0 to 0.8
Molybdenum (Mo), % 0.8 to 1.3
3.0 to 4.0
Nickel (Ni), % 0 to 1.0
6.5 to 8.0
Nitrogen (N), % 0
0.23 to 0.33
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.0020
Tungsten (W), % 0
0.8 to 1.2