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EN 1.4911 Stainless Steel vs. EN 1.4986 Stainless Steel

Both EN 1.4911 stainless steel and EN 1.4986 stainless steel are iron alloys. They have 77% 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 1.4911 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, % 11
18
Fatigue Strength, MPa 530
350
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 640
460
Tensile Strength: Ultimate (UTS), MPa 1070
750
Tensile Strength: Yield (Proof), MPa 970
560

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 430
520
Maximum Temperature: Mechanical, °C 700
940
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 20
25
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.4
4.8
Embodied Energy, MJ/kg 49
67
Embodied Water, L/kg 130
150

Common Calculations

PREN (Pitting Resistance) 14
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 2410
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 38
26
Strength to Weight: Bending, points 30
23
Thermal Diffusivity, mm2/s 5.4
4.0
Thermal Shock Resistance, points 37
16

Alloy Composition

Boron (B), % 0.0050 to 0.015
0.050 to 0.1
Carbon (C), % 0.050 to 0.12
0.040 to 0.1
Chromium (Cr), % 9.8 to 11.2
15.5 to 17.5
Cobalt (Co), % 5.0 to 7.0
0
Iron (Fe), % 75.7 to 83.8
59.4 to 66.6
Manganese (Mn), % 0.3 to 1.3
0 to 1.5
Molybdenum (Mo), % 0.5 to 1.0
1.6 to 2.0
Nickel (Ni), % 0.2 to 1.2
15.5 to 17.5
Niobium (Nb), % 0.2 to 0.5
0.4 to 1.2
Nitrogen (N), % 0 to 0.035
0
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0.1 to 0.8
0.3 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0 to 0.7
0
Vanadium (V), % 0.1 to 0.4
0