Introduction

GH1131 Superalloy (GH113) is a solid-solution strengthened iron-nickel base superalloy reinforced with W, Mo, Nb, and N. With 28% nickel, it offers high thermal strength and good process performance among low-nickel high-temperature alloys. It is used for rocket engine and aero engine parts such as afterburner components. However, it has lower oxidation resistance and structural stability than similar nickel-based alloys; after long-term use at 700–900°C, plasticity and formability may decrease. Available in round bar, sheet, plate, strip, wire, and forgings per GB/T standards.

Chemical components(%)

Mechanical properties

Physical properties

GH1131 Nickel Alloy Available Products and Standard

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

• Type: 

GH1131 Nickel Alloy Wire

GH1131 Nickel Alloy Strip

GH1131 Nickel Alloy Bar

GH1131 Nickel Alloy Sheet

GH1131 Nickel Alloy Tube

GH1131 Nickel 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: 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 performance test, oxidation resistance test, dimensional inspection

2. ASTM B435 (Standard Specification for UNS N06002 and Similar Nickel-Based Superalloys – Reference)

• Grade: GH1131 / Fe-Ni-Cr based superalloy

• Type: Wire / Strip / Bar / Sheet / Tube

• Size Range:

Wire: 0.1 – 15.0 mm dia (coils or straight)

Strip: 0.05 – 5.0 mm thick × up to 500 mm wide (coils)

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

Sheet: 0.5 – 180 mm thick (hot rolled or cold rolled)

• Surface: Annealed, Bright, Pickled, Polished

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

Advantages

(1) High temperature strength: As a solid-solution strengthened iron-nickel base superalloy reinforced with W, Mo, Nb, and N additions, GH1131 round bar and forging deliver excellent yield strength and creep resistance at elevated temperatures.

(2) Good process performance: GH1131 sheet and strip offer good weldability and hot plasticity, enabling fabrication of complex aero engine afterburner components.

(3) Low nickel content (28%): This alloy maintains high‑temperature strength while using less nickel than many superalloys, providing a cost‑effective solution for moderate‑temperature applications.

(4) Good workability: GH1131 wire and welding wire are readily formed and joined, making them suitable for rocket engine parts and structural components.

(5)Wide product availability: Supplied as round bar, sheet, plate, strip, wire, tube, and forgings per GB/T standards, with custom sizes available.

Note: Compared to nickel‑rich superalloys, GH1131 has lower oxidation resistance and structural stability. After long‑term service at 700–900°C, room temperature plasticity and formability may decrease.

Applications

(1)Rocket engine components – GH1131 seamless tube and forging are used in thrust chambers, nozzle extensions, and gas generator parts operating up to 1000°C.

(2)Aero engine afterburner parts – GH1131 sheet and strip serve in afterburner adjustable nozzle housings, flame holders, and mixing ducts.

(3)High‑temperature structural parts – GH1131 round bar and plate are applied in gas turbine casings, transition ducts, and support rings where moderate strength is sufficient.

(4)Exhaust system components – GH1131 wire and fastener are specified for jet engine exhaust manifolds and tail cones.

(5)Industrial furnace fixtures – GH1131 plate and forging are used in heat treating baskets, retorts, and furnace muffles for intermittent high‑temperature service.

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.