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EN 1.4378 Stainless Steel vs. EN 1.4615 Stainless Steel

Both EN 1.4378 stainless steel and EN 1.4615 stainless steel are iron alloys. They have a moderately high 92% 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 1.4615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 34
50
Fatigue Strength, MPa 340 to 550
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 510 to 680
360
Tensile Strength: Ultimate (UTS), MPa 760 to 1130
500
Tensile Strength: Yield (Proof), MPa 430 to 970
200

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
400
Maximum Temperature: Mechanical, °C 910
840
Melting Completion (Liquidus), °C 1390
1400
Melting Onset (Solidus), °C 1350
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 12
13
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 39
40
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 23
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 220
200
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 2370
99
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 41
18
Strength to Weight: Bending, points 24 to 31
18
Thermal Shock Resistance, points 16 to 23
11

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 17 to 19
14 to 16
Copper (Cu), % 0
2.0 to 4.0
Iron (Fe), % 61.2 to 69
63.1 to 72.5
Manganese (Mn), % 11.5 to 14.5
7.0 to 9.0
Molybdenum (Mo), % 0
0 to 0.8
Nickel (Ni), % 2.3 to 3.7
4.5 to 6.0
Nitrogen (N), % 0.2 to 0.4
0.020 to 0.060
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010