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EN 1.4959 Stainless Steel vs. EN 1.4986 Stainless Steel

Both EN 1.4959 stainless steel and EN 1.4986 stainless steel are iron alloys. They have 79% 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 1.4959 stainless steel and the bottom bar is EN 1.4986 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
18
Fatigue Strength, MPa 170
350
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 430
460
Tensile Strength: Ultimate (UTS), MPa 630
750
Tensile Strength: Yield (Proof), MPa 190
560

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 510
520
Maximum Temperature: Mechanical, °C 1090
940
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1350
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 15
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 31
25
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.4
4.8
Embodied Energy, MJ/kg 76
67
Embodied Water, L/kg 200
150

Common Calculations

PREN (Pitting Resistance) 21
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120
Resilience: Unit (Modulus of Resilience), kJ/m3 96
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
26
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 0.25 to 0.65
0
Boron (B), % 0
0.050 to 0.1
Carbon (C), % 0.050 to 0.1
0.040 to 0.1
Chromium (Cr), % 19 to 22
15.5 to 17.5
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 39.4 to 50.5
59.4 to 66.6
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 0
1.6 to 2.0
Nickel (Ni), % 30 to 34
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.7
0.3 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.25 to 0.65
0