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EN 1.4742 Stainless Steel vs. EN 1.4539 Stainless Steel

Both EN 1.4742 stainless steel and EN 1.4539 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 (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4742 stainless steel and the bottom bar is EN 1.4539 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
38
Fatigue Strength, MPa 180
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 370
430
Tensile Strength: Ultimate (UTS), MPa 600
630
Tensile Strength: Yield (Proof), MPa 300
260

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 1000
1100
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 490
460
Thermal Conductivity, W/m-K 19
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
31
Density, g/cm3 7.6
8.1
Embodied Carbon, kg CO2/kg material 2.2
5.7
Embodied Energy, MJ/kg 32
78
Embodied Water, L/kg 130
200

Common Calculations

PREN (Pitting Resistance) 18
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
190
Resilience: Unit (Modulus of Resilience), kJ/m3 230
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
22
Strength to Weight: Bending, points 21
20
Thermal Diffusivity, mm2/s 5.1
3.2
Thermal Shock Resistance, points 21
14

Alloy Composition

Aluminum (Al), % 0.7 to 1.2
0
Carbon (C), % 0 to 0.12
0 to 0.020
Chromium (Cr), % 17 to 19
19 to 21
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 77.2 to 81.6
43.1 to 51.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0
24 to 26
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0.7 to 1.4
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.010