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EN 1.4855 Stainless Steel vs. EN 1.4378 Stainless Steel

Both EN 1.4855 stainless steel and EN 1.4378 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4855 stainless steel and the bottom bar is EN 1.4378 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
190 to 340
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 4.6
14 to 34
Fatigue Strength, MPa 120
340 to 550
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 500
760 to 1130
Tensile Strength: Yield (Proof), MPa 250
430 to 970

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Corrosion, °C 610
410
Maximum Temperature: Mechanical, °C 1050
910
Melting Completion (Liquidus), °C 1400
1390
Melting Onset (Solidus), °C 1350
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 34
12
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 5.9
2.7
Embodied Energy, MJ/kg 85
39
Embodied Water, L/kg 200
150

Common Calculations

PREN (Pitting Resistance) 25
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
150 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 160
470 to 2370
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
28 to 41
Strength to Weight: Bending, points 18
24 to 31
Thermal Shock Resistance, points 11
16 to 23

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.080
Chromium (Cr), % 23 to 25
17 to 19
Iron (Fe), % 42.6 to 51.9
61.2 to 69
Manganese (Mn), % 0 to 2.0
11.5 to 14.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 23 to 25
2.3 to 3.7
Niobium (Nb), % 0.8 to 1.8
0
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 1.0 to 2.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030