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EN 1.4855 Stainless Steel vs. EN 1.4547 Stainless Steel

Both EN 1.4855 stainless steel and EN 1.4547 stainless steel are iron alloys. They have 86% 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 1.4547 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
39
Fatigue Strength, MPa 120
290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 500
750
Tensile Strength: Yield (Proof), MPa 250
340

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Corrosion, °C 610
420
Maximum Temperature: Mechanical, °C 1050
1090
Melting Completion (Liquidus), °C 1400
1470
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 14
14
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 34
28
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 5.9
5.6
Embodied Energy, MJ/kg 85
75
Embodied Water, L/kg 200
190

Common Calculations

PREN (Pitting Resistance) 25
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
240
Resilience: Unit (Modulus of Resilience), kJ/m3 160
290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
26
Strength to Weight: Bending, points 18
23
Thermal Diffusivity, mm2/s 3.7
3.8
Thermal Shock Resistance, points 11
16

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.020
Chromium (Cr), % 23 to 25
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 42.6 to 51.9
51 to 56.3
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
6.0 to 7.0
Nickel (Ni), % 23 to 25
17.5 to 18.5
Niobium (Nb), % 0.8 to 1.8
0
Nitrogen (N), % 0
0.18 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 1.0 to 2.5
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.010