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EN 1.4006 Stainless Steel vs. EN 1.5521 Steel

Both EN 1.4006 stainless steel and EN 1.5521 steel are iron alloys. They have 87% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4006 stainless steel and the bottom bar is EN 1.5521 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16 to 23
11 to 21
Fatigue Strength, MPa 150 to 300
210 to 310
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 370 to 460
310 to 360
Tensile Strength: Ultimate (UTS), MPa 590 to 750
430 to 1390
Tensile Strength: Yield (Proof), MPa 230 to 510
300 to 490

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 740
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
51
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
1.9
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.9
1.4
Embodied Energy, MJ/kg 27
19
Embodied Water, L/kg 100
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99 to 110
44 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 660
250 to 630
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 27
15 to 49
Strength to Weight: Bending, points 20 to 24
16 to 35
Thermal Diffusivity, mm2/s 8.1
14
Thermal Shock Resistance, points 21 to 26
13 to 41

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.080 to 0.15
0.16 to 0.2
Chromium (Cr), % 11.5 to 13.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 83.1 to 88.4
98 to 98.9
Manganese (Mn), % 0 to 1.5
0.9 to 1.2
Nickel (Ni), % 0 to 0.75
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.025

Comparable Variants