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EN 1.4855 Stainless Steel vs. EN 1.4911 Stainless Steel

Both EN 1.4855 stainless steel and EN 1.4911 stainless steel are iron alloys. They have 60% of their average alloy composition in common. There are 29 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 1.4911 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 4.6
11
Fatigue Strength, MPa 120
530
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 500
1070
Tensile Strength: Yield (Proof), MPa 250
970

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Corrosion, °C 610
430
Maximum Temperature: Mechanical, °C 1050
700
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
20
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 34
20
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 5.9
3.4
Embodied Energy, MJ/kg 85
49
Embodied Water, L/kg 200
130

Common Calculations

PREN (Pitting Resistance) 25
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160
2410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
38
Strength to Weight: Bending, points 18
30
Thermal Diffusivity, mm2/s 3.7
5.4
Thermal Shock Resistance, points 11
37

Alloy Composition

Boron (B), % 0
0.0050 to 0.015
Carbon (C), % 0.3 to 0.5
0.050 to 0.12
Chromium (Cr), % 23 to 25
9.8 to 11.2
Cobalt (Co), % 0
5.0 to 7.0
Iron (Fe), % 42.6 to 51.9
75.7 to 83.8
Manganese (Mn), % 0 to 2.0
0.3 to 1.3
Molybdenum (Mo), % 0 to 0.5
0.5 to 1.0
Nickel (Ni), % 23 to 25
0.2 to 1.2
Niobium (Nb), % 0.8 to 1.8
0.2 to 0.5
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 1.0 to 2.5
0.1 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0
0 to 0.7
Vanadium (V), % 0
0.1 to 0.4