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EN 1.4864 Stainless Steel vs. EN 1.4886 Stainless Steel

Both EN 1.4864 stainless steel and EN 1.4886 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4864 stainless steel and the bottom bar is EN 1.4886 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 33
45
Fatigue Strength, MPa 200
280
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 430
400
Tensile Strength: Ultimate (UTS), MPa 650
580
Tensile Strength: Yield (Proof), MPa 260
300

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1390
1390
Melting Onset (Solidus), °C 1340
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 13
12
Thermal Expansion, µm/m-K 14
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 30
31
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 5.3
5.4
Embodied Energy, MJ/kg 75
76
Embodied Water, L/kg 180
190

Common Calculations

PREN (Pitting Resistance) 17
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
220
Resilience: Unit (Modulus of Resilience), kJ/m3 170
230
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23
20
Strength to Weight: Bending, points 21
19
Thermal Diffusivity, mm2/s 3.3
3.1
Thermal Shock Resistance, points 17
14

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.15
Chromium (Cr), % 15 to 17
17 to 20
Iron (Fe), % 41.7 to 51
38.7 to 49
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 33 to 37
33 to 37
Nitrogen (N), % 0 to 0.1
0 to 0.1
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 1.0 to 2.0
1.0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.015