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EN 1.4606 Stainless Steel vs. EN 1.4740 Stainless Steel

Both EN 1.4606 stainless steel and EN 1.4740 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 1.4606 stainless steel and the bottom bar is EN 1.4740 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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