Introduction

GH3039 Superalloy (GH39) is a single-phase austenitic solid-solution strengthened nickel-chromium based superalloy with moderate thermal strength and good thermal fatigue performance below 800°C, and excellent oxidation resistance up to 1000°C. It offers good cold formability, good weldability, and a stable microstructure for long-term service below 850°C. Ideal for aircraft engine combustion chambers, afterburner components, and gas turbine casings. Available in sheet, plate, bar, wire, tube, and forgings per GB/T, ASTM, AMS, or BS standards.

Chemical components(%)

Mechanical properties

Physical properties

GH3039 Superalloy Available Products and Standard

1. GB/T 14992 (Superalloys – Classification and Specifications)

• Type:

GH3039 Alloy Plate

GH3039 Alloy Sheet

GH3039 Alloy Round bar

GH3039 Alloy Strip

GH3039 Alloy Tube

GH3039 Alloy Pipes

GH3039 Alloy  Wire

GH3039 Alloy Forgings

• Size Range:

Wire: 0.1 – 15.0 mm dia

Strip: 0.05 – 5.0 mm thick × 5 – 500 mm wide

Bar: 8 – 355 mm dia

Sheet / Plate: 0.5 – 180 mm thick

Tube: Custom sizes available

• Surface: Annealed, Bright, Pickled, Ground

• Testing: Chemical analysis, mechanical test (tensile strength, yield strength, elongation), high-temperature oxidation test, dimensional inspection

2. ASTM B564 (Standard Specification for Nickel Alloy Forgings)

• Grade: GH3039 / Ni-Cr based solid-solution strengthened alloy

• Type: Bar / Forging / Rod

• Size Range:

Bar: 8 – 355 mm dia (hot rolled or cold drawn)

Forging: Custom sizes available per customer drawing

• Surface: Annealed, Pickled, Ground, Turned

• Testing: Chemical analysis, mechanical test (tensile, yield, elongation), high-temperature oxidation test, ultrasonic test, dimensional inspection

3. Reference Standards (Available Upon Request)

• ASTM B446 – Nickel-Chromium-Molybdenum Alloy Bar

• ASTM B704 – Nickel Alloy Welded Tube

• ASTM B705 – Nickel Alloy Welded Pipe

• ASTM B751 – Nickel Alloy Tube General Requirements

• ASTM B775 – Nickel Alloy Pipe General Requirements

Advantages

(1)High temperature strength: As a single-phase austenitic solid-solution strengthened nickel-chromium based superalloy, it offers moderate thermal strength and maintains reliable performance below 850°C.

(2)Excellent oxidation resistance: The alloy provides excellent oxidation resistance up to 1000°C, forming a stable protective layer that prevents surface degradation in high-temperature environments.

(3)Good thermal fatigue performance: With good thermal fatigue performance below 800°C, it withstands cyclic thermal stress without cracking, ensuring long-term reliability.

(4)Stable microstructure: After prolonged service at elevated temperatures, the material retains a stable microstructure, minimizing property degradation over time.

(5)Excellent workability: Featuring good cold formability and good weldability, it supports complex forming and joining operations, making it suitable for intricate component designs.

(6)Corrosion resistance: The Ni-Cr based composition provides good resistance to corrosive media, complementing its high-temperature capabilities.

Applications

(1)Aviation sector – Widely used in aircraft engine combustion chambers and afterburner components, where high temperature strength and oxidation resistance are critical for performance and safety.

(2)Aerospace field – Applied in gas turbine casings and high-temperature structural parts for rockets and spacecraft, benefiting from its thermal stability and good weldability.

(3)Industrial furnaces – Suitable for heat exchanger components, furnace fixtures, and other equipment operating in high-temperature environments up to 900°C.

(4)Power generation – Used in gas turbine components where thermal fatigue resistance and stable microstructure ensure reliable long-term service.

(5)General high-temperature applications – Ideal for any application requiring a solid-solution strengthened nickel-chromium alloy with good formability and oxidation resistance up to 1000°C.

MONO Group is one of Superalloy, Nickel alloy, high Temperature alloy manufacturer&Supplier&Wholesaler from China,We can supply high quality alloy plate,sheet,round bar,tube.pipes,fittings,flange,and custom parts in accordance with ASTM, ASME, DIN, ISO, GB, and other international standards. For inquiries or to request a quote , please freely contact us at info@monokj.com.