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EN 1.5681 Steel vs. EN 1.4571 Stainless Steel

Both EN 1.5681 steel and EN 1.4571 stainless steel are iron alloys. They have 72% 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 1.5681 steel and the bottom bar is EN 1.4571 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
14 to 40
Fatigue Strength, MPa 300
200 to 330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 630
600 to 900
Tensile Strength: Yield (Proof), MPa 430
230 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
950
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
19
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.9
3.9
Embodied Energy, MJ/kg 25
54
Embodied Water, L/kg 55
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 490
130 to 820
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
21 to 32
Strength to Weight: Bending, points 21
20 to 26
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 19
13 to 20

Alloy Composition

Carbon (C), % 0.060 to 0.12
0 to 0.080
Chromium (Cr), % 0
16.5 to 18.5
Iron (Fe), % 92.9 to 94.9
61.7 to 71
Manganese (Mn), % 0.5 to 0.8
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 4.5 to 5.5
10.5 to 13.5
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0
0 to 0.7