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EN 1.4857 Stainless Steel vs. EN 1.4855 Stainless Steel

Both EN 1.4857 stainless steel and EN 1.4855 stainless steel are iron alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 88% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4857 stainless steel and the bottom bar is EN 1.4855 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 6.7
4.6
Fatigue Strength, MPa 120
120
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 500
500
Tensile Strength: Yield (Proof), MPa 250
250

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Maximum Temperature: Corrosion, °C 440
610
Maximum Temperature: Mechanical, °C 1100
1050
Melting Completion (Liquidus), °C 1370
1400
Melting Onset (Solidus), °C 1320
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 13
14
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 34
34
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.7
5.9
Embodied Energy, MJ/kg 81
85
Embodied Water, L/kg 220
200

Common Calculations

PREN (Pitting Resistance) 26
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
19
Resilience: Unit (Modulus of Resilience), kJ/m3 150
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
18
Strength to Weight: Bending, points 18
18
Thermal Diffusivity, mm2/s 3.4
3.7
Thermal Shock Resistance, points 11
11

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.3 to 0.5
Chromium (Cr), % 24 to 27
23 to 25
Iron (Fe), % 31.4 to 41.7
42.6 to 51.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 33 to 36
23 to 25
Niobium (Nb), % 0
0.8 to 1.8
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
1.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030