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EN 1.4740 Stainless Steel vs. EN 1.4606 Stainless Steel

Both EN 1.4740 stainless steel and EN 1.4606 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.4740 stainless steel and the bottom bar is EN 1.4606 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 22
23 to 39
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
75

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 410
770
Maximum Temperature: Mechanical, °C 900
910
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 18
14
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
26
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 2.3
6.0
Embodied Energy, MJ/kg 32
87
Embodied Water, L/kg 120
170

Common Calculations

PREN (Pitting Resistance) 18
19
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Thermal Diffusivity, mm2/s 4.8
3.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0.3 to 0.5
0 to 0.080
Chromium (Cr), % 16 to 19
13 to 16
Iron (Fe), % 75.4 to 82.7
49.2 to 59
Manganese (Mn), % 0 to 1.0
1.0 to 2.0
Molybdenum (Mo), % 0 to 0.5
1.0 to 1.5
Nickel (Ni), % 0 to 1.0
24 to 27
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 1.0 to 2.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
1.9 to 2.3
Vanadium (V), % 0
0.1 to 0.5