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EN 1.6982 Stainless Steel vs. EN 1.8505 Steel

Both EN 1.6982 stainless steel and EN 1.8505 steel are iron alloys. Both are furnished in the quenched and tempered condition. They have 84% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.6982 stainless steel and the bottom bar is EN 1.8505 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
13
Fatigue Strength, MPa 350
540
Impact Strength: V-Notched Charpy, J 56
28
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 800
1050
Tensile Strength: Yield (Proof), MPa 570
860

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 770
440
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.6
Embodied Energy, MJ/kg 33
22
Embodied Water, L/kg 110
65

Common Calculations

PREN (Pitting Resistance) 14
2.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 820
1950
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
37
Strength to Weight: Bending, points 25
30
Thermal Diffusivity, mm2/s 6.6
11
Thermal Shock Resistance, points 29
31

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.050
0.28 to 0.35
Chromium (Cr), % 12 to 13.5
1.5 to 1.8
Iron (Fe), % 78.7 to 84.5
95.4 to 97.1
Manganese (Mn), % 0 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0 to 0.7
0.2 to 0.4
Nickel (Ni), % 3.5 to 5.0
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035