GH1180

Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of gh1180 in China. If you're going to wholesale high quality gh1180 made in China, welcome to get free sample from our factory. Good service and reasonable price are available.

GH1180 High Temperature Alloy

GH1180 (NS111) is an Fe-Ni-Cr-based solid-solution strengthened wrought superalloy, designed for operating temperatures below 1000°C. It features excellent high-temperature corrosion resistance, good processability, and high microstructural stability. The alloy possesses superior cold/hot workability and weldability, making it easy to form. It is particularly suitable for components operating long-term at elevated temperatures under severe corrosive conditions. Main product forms include hot-rolled and forged round bars, hot-rolled plates, cold-rolled thin sheets, cold-rolled (drawn) seamless tubes, cold-rolled strips, and forgings.

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Heat Treatment：

GH1180 is a solid-solution strengthened superalloy that does not require precipitation age hardening. Its primary heat treatment consists strictly of solution annealing：

• Solution Annealing Procedure: Heat to 1020°C – 1070°C (1868°F – 1958°F) followed by rapid air cooling or water quenching to optimize ductility and corrosion resistance.
• Soaking Time Rule: Soaking duration is directly determined by the section thickness-allow 1 hour of soaking time per 25 mm (1 inch) of effective work-piece thickness to ensure complete phase homogenization and uniform grain structure.

Melting Process：

GH1180 is manufactured using a precision Vacuum Induction Melting (VIM) + Electroslag Remelting (ESR) dual-refining process to meet strict high-temperature industrial standards:

• Primary Melting (VIM): Vacuum Induction Melting ensures ultra-precise chemical composition control while eliminating harmful gaseous impurities ($\mathrm{O_2, N_2, H_2}$) and preventing oxidation of active elements like Titanium ($\mathrm{Ti}$) and Aluminum ($\mathrm{Al}$).
• Secondary Refining (ESR): Electroslag Remelting further removes non-metallic inclusions, refines the alloy's macrostructure, and eliminates center porosity or ingot segregation.

Standard sizes are available from stock, with custom production based on drawings. We also offer cut-to-length and small-quantity cutting services. Dimensional tolerances can comply with applicable GB/T standards or be supplied to ASTM B409, ASTM B408, and ASTM B564 tolerance requirements.

Each GH1180 batch is supplied with an EN 10204 Type 3.1 material certificate. Type 3.2 certification with third-party witness inspection is also available upon request. All testing is carried out in accordance with the applicable GB and ASTM standards.

1.Chemical Composition Test

• OES / ICP chemical analysis, composition verified per heat lot;
• On‑site PMI spectral re‑check before delivery to avoid material mixing.

2.Mechanical Property Test (Solution‑annealed condition)

• Room‑temperature tensile test: Tensile strength, 0.2% offset yield strength, elongation after fracture;
• HB hardness test;
• High‑temperature tensile test, stress‑rupture & creep test available for type test upon request.

Tensile Test

Hardness Test

PMI Test

3.Non‑Destructive Testing (NDT) 

Eddy Current Testing

Penetrant Testing / Liquid Penetrant Testing

Ultrasonic Testing

4.Visual & Dimensional Inspection

• 100% visual inspection: Free of cracks, laps and peeling;
• Batch sampling inspection for dimensional tolerances using calipers, micrometers and laser thickness gauge;
• Straightness control for bars, flatness control for plates.

Why Choose Our GH1180 Alloy?

 

• Reliable high‑temperature mechanical properties Solution‑strengthened Fe‑Ni‑Cr superalloy, maintaining stable tensile and creep‑rupture performance up to 1000 °C, resisting thermal cyclic brittle fracture for high‑temp structural parts.
• Excellent high‑temperature oxidation & thermal corrosion resistance Cr‑Ni‑rich matrix forms dense protective oxide film. Good oxidation resistance below 1000 °C, tolerates mixed gas and chloride‑containing corrosive media.
• Stable homogenized microstructure Supplied in solution‑annealed condition with uniform austenitic grains. Low carbide precipitation reduces intergranular corrosion risk for long‑term service.
• Good processing & welding performance Suitable for hot forming and controlled cold working. Conventional welding processes are applicable, available for bars, plates, tubes and custom forgings.

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