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AISI 439 Stainless Steel vs. EN 1.4710 Stainless Steel

Both AISI 439 stainless steel and EN 1.4710 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 88% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AISI 439 stainless steel and the bottom bar is EN 1.4710 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
260
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
20
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 530
360
Maximum Temperature: Mechanical, °C 890
750
Melting Completion (Liquidus), °C 1510
1430
Melting Onset (Solidus), °C 1430
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
24
Thermal Expansion, µm/m-K 11
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
6.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
7.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
5.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.3
1.8
Embodied Energy, MJ/kg 34
24
Embodied Water, L/kg 120
76

Common Calculations

PREN (Pitting Resistance) 18
7.2
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Thermal Diffusivity, mm2/s 6.7
6.5

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Carbon (C), % 0 to 0.030
0.2 to 0.35
Chromium (Cr), % 17 to 19
6.0 to 8.0
Iron (Fe), % 77.1 to 82.8
87.4 to 92.3
Manganese (Mn), % 0 to 1.0
0.5 to 1.0
Molybdenum (Mo), % 0
0 to 0.15
Nickel (Ni), % 0 to 0.5
0 to 0.5
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0.2 to 1.1
0