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EN 1.4640 Stainless Steel vs. EN 1.7106 Steel

Both EN 1.4640 stainless steel and EN 1.7106 steel are iron alloys. They have 72% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4640 stainless steel and the bottom bar is EN 1.7106 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 200
200 to 500
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 620 to 650
660 to 2020

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Mechanical, °C 930
410
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
46
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 14
2.1
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 40
20
Embodied Water, L/kg 150
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22 to 23
24 to 73
Strength to Weight: Bending, points 21
22 to 46
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 14 to 15
20 to 61

Alloy Composition

Carbon (C), % 0.030 to 0.080
0.52 to 0.6
Chromium (Cr), % 18 to 19
0.2 to 0.45
Copper (Cu), % 1.3 to 2.0
0
Iron (Fe), % 67.4 to 73.6
95.9 to 97
Manganese (Mn), % 1.5 to 4.0
0.7 to 1.0
Nickel (Ni), % 5.5 to 6.9
0
Nitrogen (N), % 0.030 to 0.11
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 0.5
1.6 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.025