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EN 1.4886 Stainless Steel vs. EN 1.4449 Stainless Steel

Both EN 1.4886 stainless steel and EN 1.4449 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 75% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4886 stainless steel and the bottom bar is EN 1.4449 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
48
Fatigue Strength, MPa 280
240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Shear Strength, MPa 400
440
Tensile Strength: Ultimate (UTS), MPa 580
620
Tensile Strength: Yield (Proof), MPa 300
250

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1390
1440
Melting Onset (Solidus), °C 1340
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 15
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 31
19
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.4
3.9
Embodied Energy, MJ/kg 76
54
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 19
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
240
Resilience: Unit (Modulus of Resilience), kJ/m3 230
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 3.1
4.0
Thermal Shock Resistance, points 14
14

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.035
Chromium (Cr), % 17 to 20
17 to 18.2
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 38.7 to 49
62.4 to 69.3
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
2.3 to 2.8
Nickel (Ni), % 33 to 37
11.5 to 12.5
Nitrogen (N), % 0 to 0.1
0 to 0.080
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 1.0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015