GH3030 Pipe
Grade: GH3030
Surface Treatment: 2B, 2D, BA NO(8)
Shape: Round, Square, Rectangular
Type: Seamless/ERW/Welded
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
- Send E-mail: ss@gneesteel.com
- Tel: +8615824687445
Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of gh3030 pipe in China. If you're going to wholesale high quality gh3030 pipe made in China, welcome to get free sample from our factory. Good service and reasonable price are available.
GH3030 Seamless Pipe description
GNEE Alloy 3030 Seamless Pipe
GH3030 (equivalent to Nimonic 75) tubing is a nickel-chromium-based solid solution-strengthened high-temperature alloy designed specifically for high-temperature structural integrity. Our GH3030 tubing is widely recognized for its excellent oxidation resistance and thermal fatigue strength, with long-term temperature resistance up to 800°C and short-term temperature resistance up to 1000°C.
Due to its simple chemical composition and mature manufacturing process, GH3030 tubing perfectly balances cost-effectiveness with high performance and durability. It is ideal for combustion chamber components, heat exchangers, and furnace assemblies.
Need a specific wall thickness or length? We offer custom-cut GH3030 seamless and welded steel pipe with short lead times.
Get a free quote within 24 hours
| EQUIVALENT GRADES OF High Temperature Gh3030 Tube: |
| China | Russia |
| GH3030 | XH78T |
High temperature Alloy GH3030 Seamless Pipe Specification
| Specifications of High Temperature Gh3030 PIPES / TUBE: |
| Grade | High Temperature Gh3030 |
| Range | 1/2″ Nominal Bore To 16″Nominal Bore |
| Length | Single Random, Double Random & Cut Length. |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Form | Round, Square, Rectangular, Hydraulic Etc |
| Type | Seamless / ERW / Welded / Fabricated / EFW |
| Applications | Off-Shore Oil Drilling Companies, Power Generation, Petrochemicals, Gas Processing, Specialty Chemicals, Pharmaceuticals, Pharmaceutical Equipment, Chemical Equipment, Sea Water Equipment, Heat Exchangers, Condensers, Pulp and Paper Industry |
Nimonic 75 Seamless Pipe Specification
| CHEMICAL COMPOSITION OF High Temperature Gh3030 Pipe |
| Grade | C | Mn | Si | S | Ti | Fe | Ni | Cr | P | Al |
| GH3030 | 0.12 max | 0.70 max | 0.80 max | 0.02max | 0.15-0.35 | 1.5max | balance | 19.00 – 22.00 | 0.03 | 0.15 |
GH3030 - UNS GH30 / XH78T High Temperature Alloy Pipe Mechanical Properties
| Element | Yield Strength (0.2%Offset) | Melting Point | Density | Tensile Strength | Elongation |
| GH3030 | MPa – | 1420 °C | 8.4 g/cm3 | MPa – 785 | Min 35 % |
Click to download the GH3030 alloy PDF file now
GH3030 pipe available in a range of sizes (standard and custom sizes)
We offer GH3030 tubes in both Seamless (Cold Rolled/Cold Drawn) and Welded versions to suit different pressure and cost requirements.
| Type | Outside Diameter (OD) | Wall Thickness (WT) | Length |
| Seamless Tube | 6mm – 219mm | 0.5mm – 20mm | Up to 12,000mm |
| Welded Pipe | 10mm – 508mm | 1.0mm – 15mm | Up to 12,000mm |
| Capillary Tube | 0.5mm – 6.0mm | 0.1mm – 1.0mm | Coil or Straight |
GH3030 High Temperature Alloy Tube: Size Chart and Pressure Ratings
As experts in high temperature alloys, Gnee Steel understands that precision and safety are paramount. Below is a technical reference table for our GH3030 (nickel-chromium alloy) seamless tubes.
1. GH3030 Common Size Chart (Standard Sizes and Stock Sizes)
We maintain ample stock of standard sizes and offer custom machining services for non-standard sizes.
| Outside Diameter (OD) | Wall Thickness (WT) | Type | Theoretical Weight ( kg/m ) |
| 6.0 mm | 0.5 mm / 1.0 mm | Seamless / Capillary | 0.069 / 0.126 |
| 10.0 mm | 1.0 mm / 1.5 mm | Seamless | 0.227 / 0.321 |
| 18.0 mm | 1.5 mm / 2.0 mm | Seamless | 0.623 / 0.806 |
| 25.0 mm | 2.0 mm / 3.0 mm | Seamless | 1.159 / 1.663 |
| 38.0 mm | 2.5 mm / 4.0 mm | Seamless | 2.235 / 3.427 |
| 57.0 mm | 3.0 mm / 5.0 mm | Seamless | 4.080 / 6.552 |
| 76.0 mm | 4.0 mm / 6.0 mm | Seamless | 7.252 / 10.584 |
| 108.0 mm | 5.0 mm / 8.0 mm | Seamless / Welded | 12.978 / 20.160 |
| 219.0 mm | 6.0 mm / 10.0 mm | Welded / Forged | 32.128 / 52.668 |
Note: Custom outer diameters (maximum 508 mm) and wall thicknesses are available upon request. Lengths are available in random or fixed sizes, up to 12 meters.
2. Pressure Rating Table for GH3030 Pipes
The rated pressure of GH3030 varies significantly with operating temperature. The following values are calculated based on the Barlow formula (P = 2St/D) and use a standard safety factor.
| OD x WT (mm) | at 20°C (MPa) | at 600°C (MPa) | at 800°C (MPa) |
| 10 x 1.0 | 24.5 MPa | 18.2 MPa | 8.5 MPa |
| 18 x 1.5 | 20.4 MPa | 15.1 MPa | 7.1 MPa |
| 25 x 2.0 | 19.6 MPa | 14.5 MPa | 6.8 MPa |
| 38 x 3.0 | 19.3 MPa | 14.3 MPa | 6.7 MPa |
| 57 x 4.0 | 17.2 MPa | 12.7 MPa | 5.9 MPa |
| 76 x 5.0 | 16.1 MPa | 11.9 MPa | 5.6 MPa |
| 108 x 8.0 | 18.1 MPa | 13.4 MPa | 6.3 MPa |
GH3030 tubing exhibits excellent structural stability. However, as shown above, its permissible pressure decreases by approximately 60-70% when the temperature rises from room temperature to 800°C. This is particularly relevant for ultra-high pressure applications above 800°C.
Click to contact us for customized pipe size solutions
GH3030 Pipe Manufacturing Process
Quality stems from exquisite craftsmanship. Our GH3030 pipes undergo a rigorous multi-stage production process:
Vacuum Melting/ESR: Ensures ultra-pure material with extremely low impurity content.
Hot Extrusion: Forms a seamless hollow tube body.
Multi-pass Cold Rolling/Drawing: Achieves precise dimensional accuracy and superior surface finish.
Bright Annealing (Solution Treatment): Rapid cooling at 1100°C to 1150°C restores ductility and corrosion resistance.
Non-destructive Testing: 100% eddy current and ultrasonic testing ensures zero-defect integrity.
The delivery time for GH3030 Seamless Pipe varies depending on the location
| Cost Changes 5 % extra | |
|---|---|
| Export to | Delivery Time |
| UAE | 5 days |
| Qatar | 7 |
| France | 30 |
| Kuwait | 10 |
| USA | 40-60 |
| Saudi Arabia | 7 |
| Oman | 5 |
| Italy | 30 |
| Uk | 30 |
Products and services offered by Gnee Steel
Main Applications of GH3030 Steel Pipe
GH3030 steel pipe is a key component in industries where high-temperature and oxidizing environments are critical:
Aerospace and Defense: Jet engine combustion chamber fuel lines, fuel manifolds, and afterburner guide vanes.
Industrial Furnaces: Radiant tubes, muffle furnaces, thermocouples, and heat treatment furnaces.
Petrochemical and Energy: Corrosive high-temperature gas heat exchangers and catalyst support tubes.
Automotive: High-performance exhaust system components and sensor housings.
Automotive exhaust components
Packaging method for Alloy 400 Pipe
Gnee Steel uses the safest and most effective packaging methods for all types of cargo transportation. Our packaging methods include:
Wooden crates
Wooden pallets
Shrink wrap packaging
Cardboard boxes
Wooden crates (slatted)
Every GH3030 pipe we ship comes with a certified EN 10204 3.1 Material Testing Certificate (MTC), which includes chemical, mechanical, and non-destructive testing reports.
About Gnee Steel
Request the latest High Temperature Alloy GH3030 Pipe price list. Please call +8615824687445 or email ss@gneesteel.com for information on available stock and the latest price list for Nickel GH3030 Pipe.
Please contact us to get a quick quote for the Alloy GH3030 Pipe you need
We supply these GH3030 Pipe and tubes according to DIN, ISO, JIS, or ANSI/ASME standards.
FAQ
Q1: Can GH3030 tubes be easily welded?
A: Yes. GH3030 has excellent weldability. It can be welded using Argon Arc Welding (TIG), Plasma Welding, or Resistance Welding. We recommend using matching GH3030 filler wire to ensure the weld seam maintains the same oxidation resistance as the base metal.
Q2: What is the maximum continuous working temperature?
A: For long-term load-bearing applications, we recommend a limit of 800°C. For non-load-bearing oxidation resistance (e.g., sensor guards), it can withstand up to 1000°C.
Q3: Is GH3030 suitable for high-pressure environments?
A: Our seamless GH3030 tubes are designed for high-pressure applications. We perform hydrostatic testing on every pipe to ensure it meets your specific pressure safety requirements.
Q4: Do you offer samples for testing?
A: Yes, we can provide small-batch samples for material verification and welding trials. Please contact our sales team for availability.
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