GH3030 Seamless Nickel Alloy Tube Supplier | High-Temperature Superalloy Pipe Factory Price
GH3030 Seamless Nickel Alloy Tube Supplier | High-Temperature Superalloy Pipe Factory Price
GH3030 is a nickel-based solid solution strengthened high-temperature alloy, commonly used in combustion chambers and afterburners below 800℃. It possesses excellent oxidation resistance, thermal fatigue resistance, and good cold and hot working properties. Common specifications for seamless steel pipes are outer diameters of 6-273mm and wall thicknesses of 1-30mm.
What are the components of GH3030?
GH3030 is a solid solution strengthened superalloy, primarily composed of nickel (Ni) and chromium (Cr), typically with 80% Ni and 20% Cr. This simple yet efficient alloy system provides excellent mechanical and chemical stability even under harsh conditions.
Why Choose Our GH3030 Superalloy Tubing?
GH3030 (a nickel-chromium based solid solution strengthened alloy) is renowned for its excellent oxidation resistance up to 800°C and superior thermal strength. As a leading nickel alloy manufacturer, Gnee Steel ensures that every tube we produce meets the most stringent engineering standards.
Superior Oxidation Resistance: Stable operation in oxidizing atmospheres, even under repeated thermal cycling.
Excellent Weldability: Suitable for TIG, MIG, and spot welding, with minimal post-weld cracking.
High Plasticity: Excellent cold stamping and deep drawing properties (elongation ≥ 35%).
Dimensional Accuracy: High concentricity and tight wall thickness tolerances meet the demands of precision engineering.
Get a free quote for GH3030 high-temperature alloy tubing now!
GH3030 Technical Specifications & Standards
Our GH3030 high-temperature alloy tubes are manufactured to comply with international standards, ensuring they are the perfect equivalent to EI435 (ЭИ435) and Nimonic 75.
| Parameter | Specification Details |
| Material Grade | GH3030 / Nickel Alloy 3030 / EI435 / Nimonic 75 |
| Production Standard | GB/T 15062, GB/T 14992, GJB 2297 |
| Type | Seamless Pipe / Cold Drawn Tube / Cold Rolled Tube |
| Outside Diameter (OD) | 6mm – 114mm (Customizable) |
| Wall Thickness (WT) | 0.5mm – 10.0mm (Customizable) |
| Surface Finish | Bright Annealed (BA) or Annealed & Pickled (AP) |
Gh3030 Pipe Chemical Composition (Typical %)
| Element | Composition (Typical %) |
|---|---|
| Nickel (Ni) | Balance |
| Chromium (Cr) | 19.0 - 22.0% |
| Titanium (Ti) | 0.15 - 0.35% |
| Iron (Fe) | ≤ 1.5% |
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Quality Assurance and Testing
As a professional supplier of superalloy materials, we always prioritize quality. Every batch of GH3030 high-temperature steel pipes undergoes 100% rigorous testing:
Chemical Composition Analysis: Ensuring 100% compliance with GB and international standards.
Non-Destructive Testing: Employing eddy current testing (ET) and ultrasonic testing (UT) to detect subsurface defects.
Pressure Testing: Conducting hydrostatic testing to ensure zero leakage in high-pressure systems.
Certification: Providing a factory test certificate (MTC) conforming to EN 10204 3.1.
Industrial Applications of GH3030 Steel Pipe
Due to its stable mechanical properties and heat resistance, GH3030 seamless steel pipe is the material of choice for the following fields:
Aerospace: Aircraft engine combustion chamber linings, combustor components, and exhaust manifolds.
Industrial Heating: Muffle furnace tubes, radiant tubes, and heat treatment trays.
Petrochemicals: High-temperature gas sampling lines and heat exchangers.
Sensors: Thermocouple protection tubes for extreme environments.
Your Trusted GH3030 Material Partner in China
Why Choose Our Superalloy Factory? We are committed to finding the optimal balance between high performance and cost-effectiveness.
Wholesale Prices: Factory direct sales, eliminating middlemen.
Ample Inventory: Large stock of standard sizes for fast global shipping.
Customization Services: We can customize outer diameters, wall thicknesses, and lengths according to your technical drawings.
Global Logistics: Decades of export experience, with products sold to Russia, India, Europe, and the Middle East.
View our current GH3030 tube inventory list
Stop paying exorbitant prices for Western brands. We can offer you the same aerospace-grade GH3030 high-temperature alloy tubing at a lower price. Our team is ready to provide you with a rapid quote (RFQ) within 12 hours.
Email: [ru@gneesteelgroup.com]
WhatsApp/WeChat: +86 15824687445
Website: [https://www.china-plate-steel.com/]
Contact us now to get the latest export price for GH3030 in 2026
FAQ
Q: What are the international equivalent grades of GH3030?
A: GH3030 is a Chinese standard nickel-based superalloy. Its most common international equivalent grades are:
Russia: EI435 (ЭИ435) or VZh98.
UK/Europe: Nimonic 75.
USA: Alloy 75 / UNS N06075.
Germany: W.Nr. 2.4951.
As a professional supplier of superalloys, Gnee Steel ensures that the mechanical properties of GH3030 steel pipes meet or exceed these equivalent grades.
Q: What is the maximum operating temperature of GH3030 steel pipes?
A: GH3030 is designed for high-temperature oxidation resistance. It can operate stably in oxidizing atmospheres up to 800°C (1472°F). For applications requiring short-term exposure or low stress, it can withstand higher temperatures, but to maintain optimal structural integrity, the recommended limit temperature is 800°C.
Q: Is GH3030 seamless pipe easy to weld?
A: Yes. GH3030 has excellent weldability and is suitable for argon arc welding (GTAW), gas metal arc welding (MIG), and spot welding. Because it is a solid solution strengthened alloy, it is not as prone to post-weld cracking as precipitation hardening alloys. We also provide matching GH3030 welding wire to meet your assembly needs.
