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EN 1.4539 Stainless Steel vs. AISI 429 Stainless Steel

Both EN 1.4539 stainless steel and AISI 429 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 1.4539 stainless steel and the bottom bar is AISI 429 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 38
25
Fatigue Strength, MPa 220
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 430
300
Tensile Strength: Ultimate (UTS), MPa 630
480
Tensile Strength: Yield (Proof), MPa 260
260

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 420
400
Maximum Temperature: Mechanical, °C 1100
810
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
26
Thermal Expansion, µm/m-K 16
10

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
7.5
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.7
2.0
Embodied Energy, MJ/kg 78
28
Embodied Water, L/kg 200
110

Common Calculations

PREN (Pitting Resistance) 36
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
99
Resilience: Unit (Modulus of Resilience), kJ/m3 160
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 3.2
6.9
Thermal Shock Resistance, points 14
17

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.12
Chromium (Cr), % 19 to 21
14 to 16
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 43.1 to 51.8
81.8 to 86
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 24 to 26
0
Nitrogen (N), % 0 to 0.15
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030