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High Temperature Nickel Alloy
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Oxidation Resistant 3mm GH2747 Nickel Alloy Plate for Thermal Processing Equipment

Oxidation Resistant 3mm GH2747 Nickel Alloy Plate for Thermal Processing Equipment

Brand Name: DLX
Model Number: GH2747
MOQ: 5kg
Payment Terms: T/T,D/P,D/A,L/C,VTB
Supply Ability: 1200 tons per month
Detail Information
Place of Origin:
China Jiangsu
Certification:
CE,ROHS
Packaging Details:
Spool package with Carton box, Coil package with polybag, Wooden case package
Supply Ability:
1200 tons per month
Highlight:

Oxidation Resistant Nickel Alloy Plate

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3mm GH2747 Plate

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Thermal Processing Equipment Nickel Alloy Plate

Product Description

Engineered for extreme thermal environments, DLX GH2747 3mm nickel alloy plate delivers unmatched oxidation resistance up to 1250°C, high thermal creep strength, and minimal thermal distortion for continuous furnace operations, heat treating fixtures, and petrochemical reactor internals.

GH2747 plate Customized service available

Product Overview

In modern thermal processing and continuous heating systems, structural materials face severe degradation from high-temperature oxidation, carburization, and thermal fatigue. Standard stainless steels and generic heat-resistant alloys rapidly develop scale spallation, embrittlement, and wall thinning when subjected to temperatures exceeding 1000°C.

DLX GH2747 3mm oxidation resistant nickel alloy plate is metallurgical-designed to bridge this gap. By forming a dense, self-healing continuous aluminum-chromium oxide surface film, GH2747 prevents aggressive atmospheric penetration under oxidizing, neutral, and alternating combustion atmospheres. The 3.0 mm calibrated plate profile provides optimal mechanical rigidity and high-temperature load-bearing capacity while maintaining efficient thermal transfer and ease of fabrication.

Every plate undergoes precise cold/hot rolling, continuous bright annealing, and strict ultrasonic verification to ensure uniform grain boundary structure, tight dimensional tolerance, and flawless surface finish free of micro-cracks or inclusions.

GH2747 plate details

Technical Specifications
Table 1: Chemical Composition (%)
Element Symbol Composition (wt. %)
Nickel Ni 45.00 – 49.00
Chromium Cr 18.00 – 22.00
Aluminum Al 2.50 – 3.50
Iron Fe Balance
Carbon C ≤ 0.08
Manganese Mn ≤ 0.50
Silicon Si ≤ 0.60
Phosphorus P ≤ 0.020
Sulfur S ≤ 0.015
Table 2: Physical & Thermal Properties
Property Value Unit
Density 8.12 g/cm³
Melting Range ~1360 – 1410 °C
Max Continuous Working Temperature 1250 (Intermittent up to 1300) °C
Thermal Conductivity (20°C - 1000°C) 11.2 – 24.5 W/(m·K)
Specific Heat Capacity 460 J/(kg·°C)
Electrical Resistivity 1.18 μΩ·m
Table 3: Mechanical Properties (Solution Treated at 20°C)
Mechanical Property Test Standard / Condition Minimum Specified Value
Tensile Strength (Rm) Room Temperature (20°C) ≥ 680 MPa
Yield Strength (Rp0.2) Room Temperature (20°C) ≥ 300 MPa
Elongation (A5) Room Temperature (20°C) ≥ 30%
Hardness Brinell Scale ≤ 220 HBW
High-Temperature Stress Rupture 1000°C / 100h ≥ 25 MPa
Table 4: Dimensional Specifications & Tolerances
Parameter Standard Dimension Tolerance & Availability
Thickness 3.0 mm ±0.05 mm (High Precision Tolerance)
Width 1000 mm / 1219 mm / 1500 mm Custom slitting available upon request
Length 2000 mm / 2438 mm / 3000 mm Custom coil or cut-to-length available
Surface Finish 2B / Bright Annealed / Descaled & Pickled / Polished Fully customized per application
Product Features
1. Superior High Temperature Oxidation Resistance & Self-Healing Oxide Film

The balanced high-chromium and aluminum chemistry enables GH2747 to rapidly generate a tenacious, adherent Al2O3-Cr2O3 protective layer at elevated temperatures. This barrier effectively resists scaling, spallation, and grain-boundary oxidation up to 1250°C, substantially extending component service life in continuous thermal cycling.

2. Outstanding Structural Stability & Anti-Sag Creep Strength at Elevated Temperatures

Engineered with solid-solution strengthening and micro-alloy stabilization, DLX GH2747 3mm plate exhibits exceptional resistance to structural sagging, high-temperature creep deformation, and thermal shock during cyclic heating and rapid furnace shutdowns.

3. Excellent Formability, Deep Drawing & High Integrity Weldability

Unlike conventional brittle heat-resistant cast alloys, our wrought GH2747 3mm sheet maintains high ductility in the annealed state. It can be easily laser-cut, CNC punched, brake-formed, and joined using standard TIG/MIG welding techniques without post-weld micro-fissuring.

4. Low Thermal Expansion Coefficient & Severe Atmosphere Carburization Resistance

The alloy matrix exhibits low thermal expansion mismatch against heating elements and refractory linings, while demonstrating robust resistance against protective gas cracking, carbon diffusion, and reducing/oxidizing alternating industrial gases.

GH2747 plate comparison

Product Applications 
1. Industrial Heat Treatment Equipment & High-Temperature Furnace Fixtures
  • Vacuum furnace heat shields, internal baffles, and hot-zone insulation liners.
  • High-load heat treating baskets, stacking trays, charging grids, and workpiece carrier jigs.
  • Radiant tube heating sleeves, burner nozzles, and exhaust gas deflector plates.
2. Thermal Processing Equipment & Petrochemical Pyrolysis Systems
  • Thermal cracker furnace structural dampers, reformer internal shrouds, and catalyst support grids.
  • High-temperature exhaust flues, expansion bellow liners, and thermocouple protection tubes.
3. Aerospace, Power Generation & Gas Turbine Thermal Enclosures
  • Combustor flame tubes, exhaust diffuser shrouds, transition ducts, and auxiliary heat exchanger plates.
  • Waste-to-energy incinerator baffles and high-velocity gas deflector sheets.

GH2747 plate application field

Why Choose DLX
  • Integrated Vacuum Metallurgy & Precision Rolling Line: DLX operates fully integrated upstream-to-downstream production lines featuring VIM + ESR refining, four-high precision rolling mills, continuous optical bright annealing furnaces, and high-precision CNC tension leveling systems.
  • Massive Manufacturing Capacity: Our monthly alloy production capacity exceeds 1,200 metric tons, guaranteeing stable supply chains, uninterrupted batch consistency, and reliable large-scale export schedules.
  • 100% Full-Lifecycle Non-Destructive Quality Assurance: Every batch of GH2747 3mm plate is rigorously inspected with full optical direct-reading spectrometry, automated ultrasonic flaw detection (UT), dimensional laser scanning, and high-temperature stress-rupture lab testing. Full mill test certification (MTC) with 3.1 chemical and mechanical traceability is delivered with every shipment.
  • Flexible B2B Custom Engineering: We support custom plate cutting, laser profiling, edge beveling, deep punching, and dedicated packaging tailored to OEM equipment manufacturers and global thermal engineering contractors.

production plant

Oxidation Resistant 3mm GH2747 Nickel Alloy Plate for Thermal Processing Equipment

Product FAQ
Q1: What are the primary differences in high-temperature performance between GH2747 and common nickel alloys such as Inconel 600 or Incoloy 800H?

A: While Inconel 600 and Incoloy 800H are well-suited for moderate temperatures (up to 1000°C–1100°C), GH2747 is specifically alloyed with high aluminum and chromium to form an alumina-dominant surface layer. This enables GH2747 to resist cyclic oxidation up to 1250°C and maintain higher creep-rupture resistance without severe scale spallation in combustion and industrial furnace atmospheres.

Q2: How does the 3.0 mm thickness specification perform in welding and secondary fabrication?

A: The 3mm thickness offers an optimal balance between structural rigidity and forming flexibility. In the solution-annealed condition, GH2747 plates can be cold-bent and sheared cleanly. For welding, GTAW (TIG) is recommended using matching GH2747 filler wire or high-performance nickel-base consumables under pure argon backing gas. Preheating is not required.

Q3: What quality documentation and inspection reports are supplied with each export shipment?

A: Every shipment includes comprehensive inspection reports comprising positive material identification (PMI), chemical analysis, room-temperature & high-temperature tensile test data, hardness reports, dimensional tolerance verification, and ultrasonic test certificates (UT Grade A/B compliant with precision equipment criteria).

Q4: What are the minimum order quantities (MOQ), standard lead times, and export packaging specifications?

A: Custom production MOQ is flexibly aligned with specific project bill-of-materials and plate dimensions. Standard sheet sizes are readily prepared from semi-finished stock within 7–15 working days. Export orders are packaged with waterproof moisture-barrier wrapping, edge protection angles, interleaved paper/protective film, and reinforced fumigated wooden crates suitable for long-distance ocean and air freight.

OEM services

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