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EN 1.4986 Stainless Steel vs. EN 1.6982 Stainless Steel

Both EN 1.4986 stainless steel and EN 1.6982 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 32 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 1.4986 stainless steel and the bottom bar is EN 1.6982 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 18
17
Fatigue Strength, MPa 350
350
Impact Strength: V-Notched Charpy, J 57
56
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 750
800
Tensile Strength: Yield (Proof), MPa 560
570

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 520
390
Maximum Temperature: Mechanical, °C 940
770
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 25
10
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.8
2.4
Embodied Energy, MJ/kg 67
33
Embodied Water, L/kg 150
110

Common Calculations

PREN (Pitting Resistance) 22
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 790
820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
28
Strength to Weight: Bending, points 23
25
Thermal Diffusivity, mm2/s 4.0
6.6
Thermal Shock Resistance, points 16
29

Alloy Composition

Boron (B), % 0.050 to 0.1
0
Carbon (C), % 0.040 to 0.1
0 to 0.050
Chromium (Cr), % 15.5 to 17.5
12 to 13.5
Iron (Fe), % 59.4 to 66.6
78.7 to 84.5
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 1.6 to 2.0
0 to 0.7
Nickel (Ni), % 15.5 to 17.5
3.5 to 5.0
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0.3 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015