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EN 1.4378 Stainless Steel vs. EN 1.4539 Stainless Steel

Both EN 1.4378 stainless steel and EN 1.4539 stainless steel are iron alloys. They have 70% 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 EN 1.4539 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 34
38
Fatigue Strength, MPa 340 to 550
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 510 to 680
430
Tensile Strength: Ultimate (UTS), MPa 760 to 1130
630
Tensile Strength: Yield (Proof), MPa 430 to 970
260

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1390
1440
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 7.6
8.1
Embodied Carbon, kg CO2/kg material 2.7
5.7
Embodied Energy, MJ/kg 39
78
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 23
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 220
190
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 2370
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 41
22
Strength to Weight: Bending, points 24 to 31
20
Thermal Shock Resistance, points 16 to 23
14

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.020
Chromium (Cr), % 17 to 19
19 to 21
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 61.2 to 69
43.1 to 51.8
Manganese (Mn), % 11.5 to 14.5
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 2.3 to 3.7
24 to 26
Nitrogen (N), % 0.2 to 0.4
0 to 0.15
Phosphorus (P), % 0 to 0.060
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.010