High-temperature GH2132 Alloy Tubing For Aero Engines
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
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Gnee Alloy GH2132 Aerospace Tubing Export Markets
| Region / Market | Key Procurement Characteristics |
|---|---|
| Russia & CIS Countries (Largest volume market for GH2132 tubing in military aviation) | Large annual framework orders for fighter jet engine hydraulic tube replacement; mandatory VIM+VAR aviation‑grade standard; complete dual‑use export customs documentation required; must comply with Russian aviation material standards. |
| India & Pakistan (Military aviation MRO) | Mix of small trial samples and annual bulk tube contracts; price‑sensitive; industrial‑grade VIM material acceptable for non‑core auxiliary piping. |
| Middle East (Saudi Arabia, UAE) (Civil aviation MRO) | Emergency replenishment of engine cooling tubes; strict requirement for SGS 3.2 full‑witnessed MTC (Material Test Certificate). |
| Western Europe (Germany, France) (Civil aviation OEM) | Demand for BA bright ultra‑thin GH2132 hydraulic tubes; third‑party aviation inspection reports required for each batch. |
| Southeast Asia (Local aviation component factories) | Urgent lead time requirements; low MOQ (Minimum Order Quantity) of tube blanks needed for subsequent flanging processing. |
Contact us to create a tailored solution for your project
High-temperature GH2132 alloy tubing for aero engines description
GNEE High-temperature GH2132 alloy tubing for aero engines
GH2132 (internationally known as A-286 / UNS S66286) is an iron-nickel-chromium-based (Fe-25Ni-15Cr) precipitation-hardened superalloy strengthened by molybdenum, titanium, vanadium, and trace amounts of boron. It has a density of 7.99 g/cm³, a melting range of 1364°C to 1424°C, and a designed operating temperature range of -253°C to 650°C. With a room-temperature yield strength of ≥590 MPa, it maintains excellent creep-rupture strength at temperatures up to 650°C.
Key applications of this alloy in aero-engines include engine fasteners (bolts for turbine and compressor casings, offering resistance to stress relaxation under thermal cycling), structural tubing (high-temperature fluid lines, bleed air manifolds, and exhaust lines subject to high pressure and vibration loads), and rotating components (compressor disks, turbine spacers, and rotor blades).
Applicable Standards for Aerospace-Grade GH2132 Seamless Tubes
| Standard No. | Title | Application Range |
|---|---|---|
| GB/T14992 | Superalloy Designations | General |
| GB/T15062 | Superalloy Tubes for General Use | Tubes |
| GJB 2611 | Specification for Superalloy Bars for Aviation | Bars |
| GJB 3165 | Specification for Superalloy Hot-Rolled and Forged Bars for Aviation | Bars |
| GJB 3317 | Specification for Superalloy Hot-Rolled Sheets for Aviation | Sheets |
| HB 5189 | Superalloy Forgings for Aviation | Forgings |
Specification Of High-temperature GH2132 alloy tubing for aero engines
| Specifications of High Temperature Gh2132 PIPES / TUBE: |
| Grade | High Temperature Gh2132 |
| Range | 1/2″ Nominal Bore To 16″Nominal Bore |
| Length | Single Random, Double Random & Cut Length. |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Form | Round, Square, Rectangular, Hydraulic Etc |
| Type | Seamless / ERW / Welded / Fabricated / EFW |
| Applications | Off-Shore Oil Drilling Companies, Power Generation, Petrochemicals, Gas Processing, Specialty Chemicals, Pharmaceuticals, Pharmaceutical Equipment, Chemical Equipment, Sea Water Equipment, Heat Exchangers, Condensers, Pulp and Paper Industry |
High-temperature GH2132 alloy tubing for aero engines Specification
GH2132 Alloy Tube Chemical Composition (wt%) – Per GB/T 14992
| Element | Min (wt%) | Max (wt%) | Role / Engineering Significance |
|---|---|---|---|
| Nickel (Ni) | 24.0 | 27.0 | Matrix element - provides austenitic structure and corrosion resistance |
| Chromium (Cr) | 13.5 | 16.0 | Core oxidation/corrosion resistance - forms Cr₂O₃ protective film |
| Iron (Fe) | - | Balance | Matrix element - base for Fe-Ni-Cr alloy system |
| Molybdenum (Mo) | 1.00 | 1.50 | Solid-solution strengthening - enhances creep resistance |
| Titanium (Ti) | 1.75 | 2.35 | Core strengthening element - forms γ' phase Ni₃(Al,Ti) precipitate |
| Aluminum (Al) | - | 0.40 | Forms γ' precipitate; contributes to oxidation resistance |
| Vanadium (V) | 0.10 | 0.50 | Solid-solution strengthening - refines grain structure |
| Boron (B) | 0.001 | 0.010 | Grain boundary strengthening - pinning grain boundaries |
| Carbon (C) | - | 0.08 | Carbide former - grain boundary strengthening |
| Manganese (Mn) | 1.00 | 2.00 | Deoxidation; processing aid |
| Silicon (Si) | - | 1.00 | Deoxidation |
| Phosphorus (P) | - | 0.030 | Strictly controlled - ensures hot workability and weldability |
| Sulfur (S) | - | 0.020 | Strictly controlled - ensures hot workability and weldability |
Physical properties of GH2132 Pipe
| Property | Value | Unit |
|---|---|---|
| Density | 7.93 – 7.99 | g/cm³ |
| Melting Range | 1364 – 1424 | °C |
| Elastic Modulus (RT) | 201 | GPa |
| Electrical Resistivity (RT) | 0.914 | μΩ·m |
Mechanical Properties of GH2132 Tubing (Aviation Tubing: Solution-Treated + Double-Aged Condition)
| Test Temperature | Min Tensile Rm (MPa) | Min Yield Rp0.2 (MPa) | Min Elongation A | 1000h Residual Stress Retention Rate | Aviation Pipe Matching Scenario |
|---|---|---|---|---|---|
| Room Temp | ≥943 | ≥665 | ≥13 | - | Cold drawn thin pipe blank processing |
| 540℃ Core Relaxation Zone | ≥780 | ≥570 | ≥18 | ≥86% | Engine hydraulic delivery pipeline (core advantage temperature) |
| 650℃ Max Long Service | ≥620 | ≥430 | ≥24 | ≥72% | Cooling radiant tubes, thermocouple sleeves |
Heat Treatment Requirements for GH2132 Tubing
| Condition | Temperature | Cooling | Application |
|---|---|---|---|
| Solution Treatment (Supply) | 980 – 1000°C, 1–2h | Water Quench or Oil Quench | Tube - standard delivery condition |
| Aging Treatment | 700 – 720°C, 16h | Air Cool | Post-solution aging for high strength |
| Premium Quality Aging | 750°C ± 10°C, 16h | Air Cool | For premium alloy quality requirements |
Click to view the heat treatment curve for Gnee Alloy GH2132 tubing
GH2132 Aviation Seamless Tube Exclusive Production Craft, Surface & Full Dimension Range
Gnee Alloy GH2132 Aerospace-Grade Tubing (Two Melting Grades)
Single VIM Industrial Grade: Suitable for non-core auxiliary furnace pipeline, basic UT inspection, lower procurement cost
VIM+VAR Double Vacuum Aviation Premium Grade (Mandatory For Aero Engine Main Pipeline): Eliminates ingot segregation & internal micro-defects, 100% UT + Eddy Current + DP full aviation NDT, Class A flaw standard, complete dual-use export permit documents for military/civil aircraft OEMs
Gnee Alloy GH2132 Manufacturing Process (Aviation-Grade Tubing)
VIM/VAR vacuum melted GH2132 tube blank → multi-pass cold pilger + precision cold drawing (wall thickness tolerance controlled ±0.02mm for aircraft pipe) → intermediate stress relief annealing → standardized solution + dual aging heat treatment → full aviation triple NDT inspection → pipe end customized flanging/threading → surface finishing & packaging
Three Types of Export Surface Finishes for GH2132 Seamless Aviation Tubing
| Tube Finish | Surface Characteristics | Typical Application |
|---|---|---|
| BA Bright Annealed (Top Choice for Civil Aircraft Hydraulic Pipeline) | Inert gas annealing; zero inner/outer oxide layer; ultra‑clean; no risk of pipeline medium contamination | Civil aircraft hydraulic systems |
| AP Pickled Matte | Matte surface; cost‑effective | General engine cooling auxiliary pipes |
| 400–600 Grit Mirror Polished | Mirror‑polished surface | Specialized for precision thermocouple protection sleeves |
Standard Size Range for GH2132 Aerospace-Grade Tubing (In-Stock Specifications)
| Parameter | Specification |
|---|---|
| Outer Diameter (OD) | Φ10 mm – 150 mm; Nominal Bore: 1/2″ – 16″ |
| Wall Thickness | 1 mm – 20 mm; Ultra‑thin wall 0.5 mm customizable for lightweight aircraft pipelines |
| Single Tube Standard Length | 1000 mm – 6000 mm; Customizable fixed length; Customized end flanging / threading per engine drawings |
| Tolerance | Strict aviation drawing wall & OD tolerance; ±0.02 mm thin‑wall control |
Non-Destructive Testing (NDT) Standard for GH2132 Aerospace-Grade Tubing
100% Ultrasonic Wall Thickness Scanning; 100% Eddy Current Surface Defect Detection; DP Dye Penetrant Inspection for pipe end weld processing parts
Typical Applications of GH2132 Seamless Tubing in Aero-Engine Systems
| Application | Key Features / Conditions | Specific Use |
|---|---|---|
| Aviation High‑Pressure Hydraulic Delivery Piping | Suitable for 540°C long‑term cyclic loading; excellent stress relaxation resistance prevents loosening of tube fitting nuts | Critical raw material for core hydraulic systems in military and civil jet engines |
| Engine Cooling Radiation Seamless Tubes | Suitable for 600–650°C continuous operation; outstanding thermal fatigue resistance | Used in combustion chamber cooling circuits |
| High‑Temperature Thermocouple Protection Sleeves | Thin‑wall polished GH2132 tubing; stable performance under temperature fluctuations | Dedicated protective housing for aviation sensors |
| Auxiliary Air Intake & Exhaust Piping | Medium‑temperature oxidation‑resistant seamless tubing for engine auxiliary gas delivery systems | Used in auxiliary gas transport systems |
| Turbocharger Internal Heat Transfer Tubes | Lightweight thin‑wall GH2132 tubing; capable of withstanding frequent heating and cooling cycles | Turbocharger internal heat transfer applications |
GH2132 VS GH4145 Aero Pipe Material Selection Matrix
| Alloy Pipe Grade | Optimum Working Temp | Core Unique Advantage | Disadvantage | Suitable Aero Pipeline | Cost Level |
|---|---|---|---|---|---|
| GH2132 (A286) | 500–650℃ | Industry-leading 540℃ stress relaxation retention rate, better cold drawing pipe forming | Creep strength below GH4145 above 600℃ | Hydraulic pipeline, thermocouple sleeves | Medium-Low |
| GH4145 (X750) | ≤540℃ | Higher creep strength under static load | Poor pipe cold drawing performance, high raw material cost | Static flange bolt sleeve pipe | High |
Core Procurement Conclusion For Aero Pipeline Engineers: If your design is long-cycle hydraulic delivery tube with sustained clamping load at 500–540℃, GH2132 seamless pipe is the most cost-effective aviation dedicated solution, reducing pipeline failure rate by over 70%.
Contact our experts to recommend the right alloy for your project
High-temperature GH2132 alloy tubing for aero engines production process
Gnee Steel provides the following heat treatments for High-temperature GH2132 alloy tubing for aero engines: annealing, solution + aging. In addition, Gnee Steel also provides hot working and cold working, which are hot rolling and cold drawing.
High-temperature GH2132 alloy tubing for aero engines Packaging
1. Packaging is crucial, especially in international shipping, where goods undergo multiple stages to reach their final destination; therefore, we place great emphasis on packaging.
2. Gnee Steel employs various packaging methods depending on the product. For example, we use multiple packaging methods...
Expertise in Manufacturing Aerospace-Grade GH2132 Seamless Tubing
Features an 8,000 m² dedicated seamless tube production facility, equipped with German-imported cold-rolling machinery and specialized aerospace tubing production lines.
Operates an 8,000 m² dedicated seamless tube production facility, equipped with German-imported cold-rolling machinery and specialized aerospace tubing production lines
Features integrated VIM/VAR dual-vacuum melting furnaces and dedicated aerospace-grade heat treatment furnaces with precise temperature-controlled aging capabilities
Equipped with a professional tubing testing laboratory featuring eddy current flaw detectors, ultrasonic thickness gauges, high-temperature stress relaxation testing furnaces, and spectrometers
Fully certified: Holds ISO9001, ISO14001, and ISO45001 certifications, alongside third-party aerospace qualifications from SGS and TÜV Rheinland
18 years of experience exporting aerospace tubing, with deep expertise in global customs clearance procedures for dual-use (civil and military) aerospace materials
Flexible ordering policies: No strict Minimum Order Quantity (MOQ) for small-batch trial production; preferential pricing secured through annual framework agreements
Gnee Alloy GH2132 certificate
About Gnee Alloy
Please submit the following information via email to receive an accurate quote for aerospace tubing within one hour:
Precise tubing specifications: Outer diameter, wall thickness, total length, and required surface finish (BA/AP/Polished)
Operating temperature and application (e.g., hydraulic, cooling, or thermocouple sheath)
Melting grade requirements: Single VIM (industrial grade) or VIM+VAR (aerospace premium grade)
Order type: Small test samples, annual bulk framework, or urgent MRO replenishment
Special certification requirements: 3.2 SGS certification, dual-use export licenses, or Russian aviation compliance documentation
Free laboratory test samples available (buyer covers international shipping costs)
Immediate access to the full GH2132 aerospace tubing datasheet and a comparison report between GH2132 and GH4145 upon inquiry submission
Comprehensive support for custom aerospace processing, including tube-end flaring, threading, and cutting
fAQ
Q1 What is GH2132 equivalent grade? What is its core advantage for aero engine pipe?
A GH2132 is fully equivalent to A-286 / UNS S66286 iron-based precipitation hardening alloy. Its irreplaceable core strength is outstanding anti-stress relaxation performance at 500–540℃, perfectly solving the long-term loosening problem of aircraft hydraulic pipeline joints; long-term safe pipe service temperature ≤650℃, needs two-stage aging heat treatment to reach full relaxation resistance strength.
Q2 What sizes of GH2132 aviation seamless pipe do you keep in stock? What surface options are available?
A Standard OD Φ10–150mm, wall thickness 1–20mm, customizable ultra-thin wall 0.5mm; three surfaces: BA bright hydraulic pipe, AP pickled auxiliary pipe, mirror polished thermocouple sleeve pipe, support custom pipe end flanging & threading per engine drawings.
Q3 Difference between VIM single melting and VIM+VAR double melting aviation pipe?
A 1. Single VIM industrial pipe: For non-core cooling auxiliary pipeline, basic UT inspection, lower cost, cannot pass military aircraft supplier audit 2. VIM+VAR aviation premium pipe: Mandatory for engine hydraulic main pipeline, eliminate internal segregation micro-defects, full UT+ET+DP triple aviation NDT, complete dual-use export documents for military/civil aviation OEMs.
Q4 Which surface finish is most widely used for civil aircraft hydraulic seamless pipe?
A BA bright inert annealed tube accounts for 80% aviation hydraulic pipe orders, no inner oxide film, avoids contamination of hydraulic oil, meets aircraft fluid pipeline ultra-cleanliness standard.
Q5 What impurity limits do you control to prevent aviation pipe welding hot cracks?
A All aviation pipe batches strictly lock S≤0.010%, P≤0.012%, Ti/V trace elements calibrated to GJB standard, low-cost manufacturers often raise S/P content causing thin-wall pipe TIG welding cracks. Every shipment provides full spectral PMI report.
Q6 What relaxation & mechanical test data will be attached to aviation MTC certificate?
A Full room temperature tensile, 540℃ high-temperature tensile, 1000h stress relaxation residual retention rate data, full pipe triple NDT flaw records, 650℃ oxidation test report for aircraft tender audit.
Q7 Main aero engine pipeline application scenarios of GH2132 seamless tube?
High-pressure hydraulic delivery seamless pipe (core largest demand)
Engine combustion chamber cooling radiant tube
High-temperature thermocouple protection polished sleeve pipe
Turbocharger internal heat transfer thin pipeline
Aircraft auxiliary air intake & exhaust medium-temperature pipe
Q8 What aviation export certification documents can you provide?
Free EN10204 3.1 factory MTC for all pipe orders; optional paid SGS/TUV 3.2 third-party witnessed inspection report; additional CO certificate, commercial invoice, aerospace dual-use material export license, Russian aviation matching file for CIS shipments. All test data archived 10 years for aircraft factory re-audit.
Q9 MOQ & delivery cycle for aviation pipe orders?
No strict MOQ for small test thin pipe samples (5kg minimum support). Standard stock aviation pipe delivery 7–15 working days after deposit; custom flanging/thread processing 15–25 days; custom VIM+VAR vacuum ingot production 30–45 working days. Free test samples available (customer cover courier cost).
Q10 Standard heat treatment process for GH2132 aviation pipe, can I skip aging?
A Cannot skip two-stage aging, otherwise pipe loses anti-relaxation performance: Solution:980℃ hold 2h air cooling → Primary aging 720℃ hold 16h air cooling Only solution soft blank pipe can be supplied for cold drawing forming, finished aviation load-bearing pipeline must complete full aging treatment.
Q11 Suitable welding processes for GH2132 thin aviation seamless pipe?
TIG/GTAW is exclusive recommended welding process for aircraft hydraulic pipe, low heat input operation required to avoid grain coarsening; post-weld stress relief aging at 700℃ is suggested to recover relaxation resistance. Our engineers provide free aviation pipe welding parameter guide.
Q12 What seaworthy aviation-grade packaging for long-distance sea shipment of thin GH2132 pipe?
Each single pipe sealed plastic end caps, internal & external anti-rust oil coating
Separated by anti-collision foam, whole pipe bundle wrapped double waterproof film
Sealed fumigated solid wooden case, steel strap reinforcement We take full container loading photos before shipment & provide real-time logistics tracking information.
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