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EN 1.4021 Stainless Steel vs. EN 1.7106 Steel

Both EN 1.4021 stainless steel and EN 1.7106 steel are iron alloys. They have 87% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4021 stainless steel and the bottom bar is EN 1.7106 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 630 to 880
660 to 2020

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 760
410
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
2.1
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.9
1.5
Embodied Energy, MJ/kg 27
20
Embodied Water, L/kg 100
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23 to 31
24 to 73
Strength to Weight: Bending, points 21 to 26
22 to 46
Thermal Diffusivity, mm2/s 8.1
13
Thermal Shock Resistance, points 22 to 31
20 to 61

Alloy Composition

Carbon (C), % 0.16 to 0.25
0.52 to 0.6
Chromium (Cr), % 12 to 14
0.2 to 0.45
Iron (Fe), % 83.2 to 87.8
95.9 to 97
Manganese (Mn), % 0 to 1.5
0.7 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
1.6 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.025

Comparable Variants