INCOLOY® alloy A-286

INCOLOY-A-286

Incoloy A-286 nickel-based alloy is Fe-25Ni-15Cr-based superalloy , which is comprehensively strengthened by adding molybdenum, titanium, aluminum, vanadium and trace boron.

A-286 Chemical composition:

Alloy%NiCrMoBFeAlTiCMnSiVS
A-286Min.2413.51.00.0011.90.1
Max.27161.50.01Balance0.352.350.082.01.00.50.03

A-286 Physical properties:

Density7.93 g/cm3
Melting point1364-1424℃

A-286 minimum mechanical properties in the room temperature:

StatusTensile strength
Rm N/mm2
Yield strength
RP0.2N/mm2
Elongation
A5 %
A-28695068028

IncoloyA-286 nickel-based alloy is Fe-25Ni-15Cr-based superalloy , which is comprehensively strengthened by adding molybdenum, titanium, aluminum, vanadium and trace boron.

1. It has high yield strength, durability and creep strength below 650℃, and has good processing plasticity and satisfactory welding performance. It is suitable for the manufacture of high-temperature load-bearing parts of aero-engines that work for a long time below 650°C , such as turbine disks, press disks, rotor blades and fasteners. The alloy can produce deformed products of various shapes, such as discs, forgings, plates, rods, wires and rings.

IncoloyA-286 nickel-based alloy improves the purity of the alloy, limits the gas content, controls the content of low melting point elements, and adjusts the heat treatment system, so as to improve the thermal strength and long-term performance of the alloy.

2. IncoloyA-286 material grade: IncoloyA-286.

3. Similar grades of IncoloyA-286: A286, UNSS66286 (United States), ZbNCT25 (France), PQA286 (United States).

4. Technical standard of IncoloyA-286 material: ASTM.

2. Heat treatment system of IncoloyA-286 nickel-based alloy :

The heat treatment system of IncoloyA-286 specified by the IncoloyA-286 material standard is shown in Table 1-2; the heat treatment system of high-quality IncoloyA-286 is 900℃±10℃, 1~2h, oil cooling +750℃±10℃, 16h, air cooling.

Table 1-2 Material Varieties Heat Treatment System Bar, round cake 980~1000℃, 1~2h, oil cooling +700~720℃, 12~16h, air cooling. Hot-rolled sheet, cold-rolled sheet 980~1000℃, air cooling +700~720℃, 12~16h, air cooling. Cold drawn rod 980~1000℃, 1~2h, oil cooling +700~720℃, 16h, air cooling.

Ring blank 980~990℃, 1~2h, oil cooling +700~720℃, 16h, air cooling. Cold heading is used for cold drawing at 980~1000℃, water cooling or oil cooling +700~720℃, 16h, air cooling.

Material varietyHeat treatment system
Bars, round cakes980~1000℃, 1~2h, oil cooling +700~720℃, 12~16h, air cooling.
Hot rolled sheet, cold rolled sheet980~1000℃, air cooling +700~720℃, 12~16h, air cooling.
cold drawn rod980~1000℃, 1~2h, oil cooling +700~720℃, 16h, air cooling.
Ring blank980~990℃, 1~2h, oil cooling +700~720℃, 16h, air cooling.
Cold drawing for cold heading980~1000℃, water cooling or oil cooling +700~720℃, 16h, air cooling.

Material variety heat treatment system

Bar, round cake 980~1000℃, 1~2h, oil cooling +700~720℃, 12~16h, air cooling.

Hot-rolled sheet, cold-rolled sheet 980~1000℃, air cooling +700~720℃, 12~16h, air cooling.

Cold drawn rod 980~1000℃, 1~2h, oil cooling +700~720℃, 16h, air cooling.

Ring blank 980~990℃, 1~2h, oil cooling +700~720℃, 16h, air cooling.

Cold heading is used for cold drawing at 980~1000℃, water cooling or oil cooling +700~720℃, 16h, air cooling.

Note: According to the standards of cold drawing and cold drawing, when the performance test is unqualified, the aging time at 760°C can be no more than 16h, and the delivery can be made after passing the test.

3. Specifications and supply status of Incoloy A-286 nickel-based alloy:

1. Variety classification: Incoloy A-286 seamless pipe, Incoloy A-286 steel plate, Incoloy A-286 round steel, Incoloy A-286 forging, Incoloy A-286 flange, IncoloyA-286 ring, Incoloy A-286 welded pipe, IncoloyA-286 Steel strip, Incoloy A-286 wire and Incoloy A-286 supporting welding consumables.

2. Delivery status: seamless pipe: solid solution + acid white, the length can be fixed to length; plate: solid solution, pickling, trimming; welded pipe: solid solution acid white + RT% flaw detection, forgings: annealing + car polishing; Bars are delivered in forged and rolled state, surface polished or polished; strips are delivered in cold-rolled, solution-softened, and de-scaled state; wire is in solution