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EN 1.4578 Stainless Steel vs. S39277 Stainless Steel

Both EN 1.4578 stainless steel and S39277 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 33 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 1.4578 stainless steel and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 51
28
Fatigue Strength, MPa 200
480
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 400
600
Tensile Strength: Ultimate (UTS), MPa 550
930
Tensile Strength: Yield (Proof), MPa 200
660

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 930
1100
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
16
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
23
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.7
4.2
Embodied Energy, MJ/kg 51
59
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 25
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
240
Resilience: Unit (Modulus of Resilience), kJ/m3 100
1070
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
33
Strength to Weight: Bending, points 19
27
Thermal Diffusivity, mm2/s 3.9
4.2
Thermal Shock Resistance, points 12
26

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.025
Chromium (Cr), % 16.5 to 17.5
24 to 26
Copper (Cu), % 3.0 to 3.5
1.2 to 2.0
Iron (Fe), % 62.3 to 68.5
56.8 to 64.3
Manganese (Mn), % 0 to 2.0
0 to 0.8
Molybdenum (Mo), % 2.0 to 2.5
3.0 to 4.0
Nickel (Ni), % 10 to 11
6.5 to 8.0
Nitrogen (N), % 0 to 0.1
0.23 to 0.33
Phosphorus (P), % 0 to 0.045
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