Description
1.Introduction
HAYNES 282 alloy (UNS N07208) is a new, wrought, gamma-prime strengthened superalloy developed
for high temperature structural applications, especially those in aero and land-based gas turbine engines.
It possesses a unique combination of creep strength, thermal stability, weldability, and fabricability not
found in currently available commercial alloys. The new alloy has excellent creep strength in the
temperature range of 1200 to 1700°F (649 to 927°C), surpassing that of Waspaloy alloy, and approaching
that of R-41 alloy.
2.Chemical composition
C Cr Co Mo Nb Ti Al Si Mn Fe Ni
% 0.06 20.0 10.0 8.5 - 2.1 1.5 0.15 0.3 1.5 margin
3.Easily fabricated
This high level of creep strength in HAYNES 282 alloy has been attained at a relatively low volume fraction
of the strengthening gamma-prime phase, resulting in outstanding resistance to strain-age cracking
(normally a problem with superalloys in this creep strength range). Additionally, slow gamma-prime
precipitation kinetics allow for the alloy to have excellent ductility in the as-annealed condition.
Consequently, HAYNES 282 alloy exhibits superior weldability and fabricability.
4.Heat treatment
HAYNES 282 alloy is provided in the solution-annealed condition, in which it is readily formable. The
typical solution-annealing temperature is in the range of 2050 to 2100°F (1121 to 1149°C). After
component fabrication, a two-step age hardening treatment is required to put the alloy into the
high-strength condition. The treatment includes 1850°F (1010°C) / 2 hours / AC (air cool) +
1450°F (788°C) / 8 hours / AC.
The features of HAYNES 282 alloy make it suitable for critical gas turbine applications, such as
sheet fabrications, seamless and flash butt-welded rings, and cases found in compressor,
combustor, and turbine sections. In augmented aircraft gas turbines, the new alloy will be useful
for exhaust and nozzle components. In land-based gas turbines, HAYNES 282 alloy is a good
candidate for transition sections and other hot-gas-path components.
haynes 282 bar
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- Haynes alloy
- Nickel alloy
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More about
Jiangsu Lambor Metal Co., Ltd.
10-50
Employees
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Year
Established
Business type
- Distributor / Wholesaler
Keywords
- inconel
- monel
- hastelloy
Contact and location
- Jiangsu Lambor Metal Co., Ltd.
- +86 xxxxxxxx
- taizhou / jiangsu | China