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EN 1.4855 Stainless Steel vs. EN 1.4424 Stainless Steel

Both EN 1.4855 stainless steel and EN 1.4424 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 1.4424 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 4.6
28
Fatigue Strength, MPa 120
350 to 370
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 500
800
Tensile Strength: Yield (Proof), MPa 250
480 to 500

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Maximum Temperature: Corrosion, °C 610
420
Maximum Temperature: Mechanical, °C 1050
960
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
13
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 34
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 5.9
3.4
Embodied Energy, MJ/kg 85
46
Embodied Water, L/kg 200
140

Common Calculations

PREN (Pitting Resistance) 25
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 160
580 to 640
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
29
Strength to Weight: Bending, points 18
25
Thermal Diffusivity, mm2/s 3.7
3.5
Thermal Shock Resistance, points 11
23

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.030
Chromium (Cr), % 23 to 25
18 to 19
Iron (Fe), % 42.6 to 51.9
68.6 to 72.4
Manganese (Mn), % 0 to 2.0
1.2 to 2.0
Molybdenum (Mo), % 0 to 0.5
2.5 to 3.0
Nickel (Ni), % 23 to 25
4.5 to 5.2
Niobium (Nb), % 0.8 to 1.8
0
Nitrogen (N), % 0
0.050 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 1.0 to 2.5
1.4 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.015