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Common Trade Names
Incoloy Alloy A286 (® Special Metals)
Pyromet Alloy A-286 (® Carpenter Technology)
ATI A286 (™ Allegheny Technologies)
The chemical composition of super alloy A-286 is outlined in the following table.
| Element | Content (%) |
|---|---|
| Iron, Fe | 54 |
| Nickel, Ni | 25.5 |
| Chromium, Cr | 14.8 |
| Titanium, Ti | 2.13 |
| Molybdenum, Mo | 1.30 |
| Manganese, Mn | 1.0 |
| Silicon, Si | 0.50 |
| Vanadium, V | 0.30 |
| Aluminum, Al | 0.18 |
| Carbon, C | 0.040 |
| Phosphorous, P | 0.020 |
| Sulfur, S | 0.015 |
| Boron, B | 0.0060 |
The following table shows the physical properties of super alloy A-286.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.92 g/cm3 | 0.286 lb/in3 |
| Melting point | 1399°C | 2550°F |
Stainless steel grade 660 Mechanical Properties
A286 Stainless Steel Yield Strength
The mechanical properties of super alloy A-286 are displayed in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 1035 MPa | 150100 psi |
| Yield strength (@strain 0.200%) | 759 MPa | 110000 psi |
| Elongation at break | 25% | 25% |
| Reduction of area | 40% | 40% |
| Hardness, Brinell (estimated from Rockwell C value for Brinell test with 3000 kg load/10 mm diameter ball) | 304 | 304 |
| Hardness, Knoop (estimated from Rockwell C value) | 330 | 330 |
| Hardness, Rockwell C | 32 | 32 |
| Hardness, Vickers (estimated from Rockwell C value) | 318 | 318 |
Equivalent materials to super alloy A-286 are given in the table below.
| AISI 660 | AMS 5525 | AMS 5726 | AMS 5732 | AMS 5734 |
| AMS 5731 | AISI 662 | AMS 5737 | AMS 5804 | AMS 5895 |
| AMS 5853 | AMS 5805 | AMS 5858 | DIN 1.4943 | SPS M250 |
| DIN 1.4944 | GE B50T81 | GE B50T12 | GE B50T1181 | ASTM A453 Grade 660 |
| ASTM A638 Grade 660 |
Alloy A286 (AMS 5731/ AMS 5732 / AMS 5737 / AMS 5525) is a iron-nickel-chromium based, austenitic superalloy with additions of molybdenum and titanium. It is one of the most popular high temperature alloys. As one of the austenitic alloys it maintains good strength and oxidation resistance at temperatures up to 1300ºF (704˚C). It is available in various forms such as Coil, Sheet, Bars, Pipes, Tubes, Fasteners, Plates, Bolts etc.
Common Trade Names include Incoloy Alloy A286 (® Special Metals), Pyromet Alloy A-286 (® Carpenter Technology), ATI A286 (™ Allegheny Technologies). They have outstanding physical properties for Solution Treated such as Density 0.286 lb./in3 (7.92 g/cm3), Specific Gravity as 7.92, Melting Point as 2500 - 2600 °F, Magnetic Permeability as 1.010, then physical properties for Solution Treated and Aged such as Density 0.287 lb./in3 (7.94 g/cm3), Specific Gravity as 7.94, Melting Point as 1370 - 1430 °C, Magnetic Permeability as 1.007.
Chemical composition of Alloy A286 material include Carbon 0.08 max, Manganese 2 max, Silicon 1 max, Phosphorous 0.025 max, Sulfur 0.025 max, Chromium 13.5-16, Nickel 24-27, Titanium 1.9-2.35, Vanadium 0.10-0.50, Aluminim 0.35 max, Boron 0.0003-0.010, Cobalt 1 max and copper 0.0003-0.010 and molybdenum 1-1.5
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