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EN 1.4378 Stainless Steel vs. S39277 Stainless Steel

Both EN 1.4378 stainless steel and S39277 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4378 stainless steel and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 34
28
Fatigue Strength, MPa 340 to 550
480
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 510 to 680
600
Tensile Strength: Ultimate (UTS), MPa 760 to 1130
930
Tensile Strength: Yield (Proof), MPa 430 to 970
660

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 2.7
4.2
Embodied Energy, MJ/kg 39
59
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 23
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 220
240
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 2370
1070
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 41
33
Strength to Weight: Bending, points 24 to 31
27
Thermal Shock Resistance, points 16 to 23
26

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.025
Chromium (Cr), % 17 to 19
24 to 26
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 61.2 to 69
56.8 to 64.3
Manganese (Mn), % 11.5 to 14.5
0 to 0.8
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 2.3 to 3.7
6.5 to 8.0
Nitrogen (N), % 0.2 to 0.4
0.23 to 0.33
Phosphorus (P), % 0 to 0.060
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.0020
Tungsten (W), % 0
0.8 to 1.2