High-Temperature Resistant HASTELLOY S Rod for Aerospace Applications​

HASTELLOY S rod (UNS N06635) is a high-performance nickel-chromium-molybdenum alloy renowned for its exceptional strength, thermal stability, and resistance to oxidation and corrosion in high-temperature environments. Developed primarily for aerospace applications, it is widely utilized in gas turbine engines, power generation, and chemical processing industries.​

HASTELLOY S Rod – Material Overview

HASTELLOY S rod offers outstanding thermal stability and low thermal expansion, making it ideal for components subjected to severe thermal cycling. It maintains excellent oxidation resistance up to 2000°F (1093°C) and retains strength and ductility after prolonged exposure to temperatures ranging from 800°F to 1600°F (427°C to 871°C). This alloy is particularly suitable for applications requiring materials that can withstand severe cyclical heating conditions while maintaining structural integrity.​

Chemical Composition

Mechanical Properties

Physical Properties

Applicable Standards

• ASTM B622 – Seamless Nickel-Chromium-Molybdenum Alloy Pipes and Tubes

• ASTM B619 – Welded Nickel-Chromium-Molybdenum Alloy Pipes and Tubes

• ASTM B366 – Nickel Alloy Fittings

• NACE MR0175/ISO 15156 – Materials for Use in H₂S-Containing Environments in Oil and Gas Production​

Applications

• Aerospace: Components in gas turbine engines, including seals and structural parts.

• Chemical Processing: Equipment exposed to high temperatures and corrosive environments.

• Power Generation: Parts in gas turbines and other high-temperature systems.

• Marine: Components in seawater desalination plants and other marine applications.​

FAQs

Q1: What is the maximum operating temperature for HASTELLOY S rod?

A1: HASTELLOY S rod maintains excellent oxidation resistance up to 2000°F (1093°C), making it suitable for high-temperature applications.​

Q2: Can HASTELLOY S rod be welded?

A2: Yes, HASTELLOY S rod can be welded using standard welding techniques, including gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW).​

Q3: What are the main industries that use HASTELLOY S rod?

A3: HASTELLOY S rod is widely used in aerospace, chemical processing, power generation, and marine industries due to its excellent high-temperature strength and corrosion resistance.

Wuxi Nickel New Material Co., Ltd. is a high-tech enterprise integrating the production, manufacturing, and research & development of specialty alloy materials. Located in Wuxi, Jiangsu Province, the company specializes in precision alloys, titanium alloys, high-temperature alloys, corrosion-resistant alloys, heat-resistant steels, nickel-based welding wires, and other specialty materials, with an annual production capacity of 5,000 tonnes. Our product range includes plates, bars, wires, and strips, which are widely used in industrial electric furnaces, power‐station boilers, petrochemical plants, aerospace, marine engineering, machinery, and electronic instrumentation. These materials are characterized by high electrical resistance, high‐temperature strength, corrosion resistance, wear resistance, and fatigue resistance. We can manufacture in compliance with national, industry, and international standards, and are also able to tailor products to meet specific customer requirements.
The company is committed to improving and enhancing its production infrastructure all year round, with a full range of production and processing equipment including vacuum smelting, hot processing, cold processing, and heat treatment. It also has various physical and chemical analysis testing facilities such as spectrometers to ensure product quality. The company has a high-quality R&D, production, and management team that is fully capable of meeting the complex requirements of the current market for material diversification, refinement, and functionalization. Our company is particularly skilled in developing and producing "specialized materials" that are suitable for the market and specific customer needs, which will be one of our company's characteristics. The company adheres to the business philosophy of "guided by market demand, driven by technological progress, and committed to optimizing and innovating materials to create greater value for customers", serving society and the market.