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EN 1.4451 Stainless Steel vs. EN 1.4855 Stainless Steel

Both EN 1.4451 stainless steel and EN 1.4855 stainless steel are iron alloys. They have 79% 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 1.4451 stainless steel and the bottom bar is EN 1.4855 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 25
4.6
Fatigue Strength, MPa 370
120
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 750
500
Tensile Strength: Yield (Proof), MPa 540
250

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Corrosion, °C 450
610
Maximum Temperature: Mechanical, °C 1100
1050
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1380
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
14
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 20
34
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
5.9
Embodied Energy, MJ/kg 53
85
Embodied Water, L/kg 190
200

Common Calculations

PREN (Pitting Resistance) 39
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
19
Resilience: Unit (Modulus of Resilience), kJ/m3 710
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 4.5
3.7
Thermal Shock Resistance, points 16
11

Alloy Composition

Carbon (C), % 0 to 0.030
0.3 to 0.5
Chromium (Cr), % 25 to 27
23 to 25
Copper (Cu), % 2.8 to 3.5
0
Iron (Fe), % 56.2 to 64.6
42.6 to 51.9
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 2.5 to 3.5
0 to 0.5
Nickel (Ni), % 5.0 to 7.0
23 to 25
Niobium (Nb), % 0
0.8 to 1.8
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.025
0 to 0.030