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EN 1.6771 Steel vs. EN 1.6982 Stainless Steel

Both EN 1.6771 steel and EN 1.6982 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.6771 steel and the bottom bar is EN 1.6982 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.0 to 8.7
17
Fatigue Strength, MPa 440 to 680
350
Impact Strength: V-Notched Charpy, J 20 to 32
56
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 930 to 1180
800
Tensile Strength: Yield (Proof), MPa 740 to 1140
570

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 440
770
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
10
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.9
2.4
Embodied Energy, MJ/kg 25
33
Embodied Water, L/kg 58
110

Common Calculations

PREN (Pitting Resistance) 2.5
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 75 to 93
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1460 to 3450
820
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 33 to 41
28
Strength to Weight: Bending, points 27 to 31
25
Thermal Diffusivity, mm2/s 13
6.6
Thermal Shock Resistance, points 27 to 35
29

Alloy Composition

Carbon (C), % 0.27 to 0.33
0 to 0.050
Chromium (Cr), % 0.8 to 1.2
12 to 13.5
Iron (Fe), % 92.2 to 95
78.7 to 84.5
Manganese (Mn), % 0.6 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.3 to 0.6
0 to 0.7
Nickel (Ni), % 3.0 to 4.0
3.5 to 5.0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015