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EN 1.4612 Stainless Steel vs. EN 1.4740 Stainless Steel

Both EN 1.4612 stainless steel and EN 1.4740 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is EN 1.4612 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, % 11
22
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 790
900
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
490
Thermal Expansion, µm/m-K 11
10

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.5
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 3.6
2.3
Embodied Energy, MJ/kg 50
32
Embodied Water, L/kg 140
120

Common Calculations

PREN (Pitting Resistance) 19
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25

Alloy Composition

Aluminum (Al), % 1.4 to 1.8
0
Carbon (C), % 0 to 0.015
0.3 to 0.5
Chromium (Cr), % 11 to 12.5
16 to 19
Iron (Fe), % 71.5 to 75.5
75.4 to 82.7
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 1.8 to 2.3
0 to 0.5
Nickel (Ni), % 10.2 to 11.3
0 to 1.0
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.1
1.0 to 2.5
Sulfur (S), % 0 to 0.0050
0 to 0.030
Titanium (Ti), % 0.2 to 0.5
0