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EN 1.4529 Stainless Steel vs. AISI 439 Stainless Steel

Both EN 1.4529 stainless steel and AISI 439 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4529 stainless steel and the bottom bar is AISI 439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 43
23
Fatigue Strength, MPa 310
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 520
310
Tensile Strength: Ultimate (UTS), MPa 750
490
Tensile Strength: Yield (Proof), MPa 340
250

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 420
530
Maximum Temperature: Mechanical, °C 1100
890
Melting Completion (Liquidus), °C 1460
1510
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
25
Thermal Expansion, µm/m-K 16
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 33
9.0
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 6.2
2.3
Embodied Energy, MJ/kg 84
34
Embodied Water, L/kg 200
120

Common Calculations

PREN (Pitting Resistance) 45
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
95
Resilience: Unit (Modulus of Resilience), kJ/m3 280
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 3.2
6.7
Thermal Shock Resistance, points 17
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 19 to 21
17 to 19
Copper (Cu), % 0.5 to 1.5
0
Iron (Fe), % 42.7 to 50.4
77.1 to 82.8
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 24 to 26
0 to 0.5
Nitrogen (N), % 0.15 to 0.25
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.1