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EN 1.4886 Stainless Steel vs. AISI 439 Stainless Steel

Both EN 1.4886 stainless steel and AISI 439 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (3, 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 AISI 439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
23
Fatigue Strength, MPa 280
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 400
310
Tensile Strength: Ultimate (UTS), MPa 580
490
Tensile Strength: Yield (Proof), MPa 300
250

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Corrosion, °C 420
530
Maximum Temperature: Mechanical, °C 1100
890
Melting Completion (Liquidus), °C 1390
1510
Melting Onset (Solidus), °C 1340
1430
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
25
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.0
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 5.4
2.3
Embodied Energy, MJ/kg 76
34
Embodied Water, L/kg 190
120

Common Calculations

PREN (Pitting Resistance) 19
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
95
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
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 3.1
6.7
Thermal Shock Resistance, points 14
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 17 to 20
17 to 19
Iron (Fe), % 38.7 to 49
77.1 to 82.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 33 to 37
0 to 0.5
Nitrogen (N), % 0 to 0.1
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 1.0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.1