Hastelloy G30 Tube Manufacturer & Supplier
TSM Technology is a professional manufacturer and supplier of Hastelloy G30 tubes in China, offering seamless and welded nickel alloy tubing for highly corrosive industrial environments. Our Hastelloy G30 tubes are manufactured in accordance with ASTM B622, ASTM B619, and ASTM B626 standards, ensuring excellent corrosion resistance, high thermal stability, and long-term reliability in aggressive chemical processing systems. Our Hastelloy G30 seamless tubes are produced using a 2500-ton extrusion press and multiple cold pilger rolling lines to ensure excellent wall thickness tolerance and surface finish.
Comprehensive Overview of Hastelloy G30 (UNS N06030)
Hastelloy G30, also known as UNS N06030, is a sophisticated high-performance, nickel-chromium-iron-molybdenum-copper alloy specifically optimized with a high chromium content (30%). This metallurgical design confers superior resistance compared to standard nickel alloys such as G-3 or Inconel 625, particularly in commercial phosphoric acid and in complex environments containing nitric and hydrofluoric acids.
Hastelloy G30 pipe is a solid-solution-strengthened material, meaning its resistance is derived from a meticulously balanced chemical matrix rather than from complex heat treatments. For global engineers in the agrichemical and nuclear sectors, G30 is not just a material choice-it is a strategic asset for minimizing maintenance cycles and preventing catastrophic corrosion failures in evaporator tubes and reboilers. Due to its excellent resistance to oxidizing acids and chloride-containing media, Hastelloy G30 tubing is widely used in heat exchangers, pickling equipment, fertilizer plants, flue gas desulfurization systems, and chemical processing industries.
Hastelloy G30 Tube Specifications
| Specification | Details |
|---|---|
| Material Grade | Hastelloy G30 / UNS N06030 |
| Standards | ASTM B622, ASTM B619, ASTM B626 |
| Tube Type | Seamless / Welded / ERW / Fabricated |
| Outside Diameter | 6.0 mm – 219mm |
| Wall Thickness | 0.5 mm – 15 mm |
| Length | Up to 15000 mm (The size can be customized according to ASME B36.10 / ASME B36.19) |
| Form | Round Tube, Pipe, U Tube, Coil Tube |
| Surface Finish | Annealed, Pickled, Bright Annealed, Polished |
| Manufacturing Method | Cold Rolled, Cold Drawn, Hot Extruded |
| Inspection | PMI, Hydro Test, Eddy Current Test, Ultrasonic Test |
| Certification | SGS, ISO 9001:2008, TÜV, MTC acc. EN 10204.3.1 |
Hastelloy G30 Equivalent Grades
| Grade | UNS | Werkstoff Nr. |
| Hastelloy G-30 | DIN 2.4603 | UNS N06030 |
| Hastelloy G-35 | DIN 2.4643 |
UNS N06035 |
Hastelloy G30 chemical composition
The unparalleled corrosion resistance of Hastelloy G30 Tube is a direct result of its strategic chemical matrix. The high chromium level provides the primary defense in oxidizing environments, while molybdenum, tungsten, and copper fortify the alloy against reducing conditions.
| Ni | Cr | Fe | Mo | Cu | Mn | Co | C | W | Si | P | S | Nb+Ta |
| Balance (approx. 43%) | 28.0-31.5 | 13.0-17.0 | 4.0-6.0 | 1.0-2.4 | 1.5 | 5.0 | 0.03 | 1.5-4.0 | 0.8 | 0.04 | 0.02 | 0.30-1.50 |
Material Standards & Mechanical Properties
Mechanical Properties
hastelloy g30 pipe products provide a robust combination of high tensile strength and excellent ductility, critical for complex pressure-retaining components.
| Ultimate Tensile Strength | min 586 MPa (85 ksi) |
| Yield Strength (0.2% Offset) | min 241 MPa (35 ksi) |
| Elongation at Break | min 30% |
| Hardness (Rockwell B) | Typical 80 - 90 HRB |
| Density | 8.22 g/cm³ |
| Melting Range | 1370 – 1400°C |
Solution Annealing: To ensure peak performance, G30 is solution-annealed at 1177°C (2150°F) and rapid-quenched.
Material Standards
TSM Technology ensures that every Hastelloy G30 Tube conforms to the following global specifications:
•Seamless Pipe & Tube: ASTM B622, ASME SB622
•Welded Pipe & Tube: ASTM B619, B626; ASME SB619, SB626
•Fittings: ASTM B366, B462
•Plate, Sheet & Strip: ASTM B582, ASME SB582
•Forgings: ASTM B462, ASME SB462
Hastelloy G30 Pipe Dimensions & Weight Specifications
We provide a comprehensive range of dimensions in both seamless and welded configurations to meet ANSI/ASME B36.10 and B36.19 standards.
| Nominal Size (in) | OD(mm) | SCH 10 Wall (mm) | SCH 40 Wall (mm) | SCH 80 Wall (mm) |
| 1/2" | 21.3 | 2.11 | 2.77 | 3.73 |
| 1" | 33.4 | 2.77 | 3.38 | 4.55 |
| 2" | 60.3 | 2.77 | 3.91 | 5.54 |
| 4" | 114.3 | 3.05 | 6.02 | 8.56 |
| 6" | 168.3 | 3.40 | 7.11 | 10.97 |
| 10" | 273.1 | 4.19 | 9.27 | 15.09 |
Available Types of Hastelloy G30 Tubes
TSM Technology manufactures a complete range of Hastelloy G30 tubing products:
- Hastelloy G30 Seamless Tube
- Hastelloy G30 Welded Tube
- Hastelloy G30 Heat Exchanger Tube
- Hastelloy G30 U Tube
- Hastelloy G30 Instrumentation Tube
- Hastelloy G30 Coil Tube
- Hastelloy G30 Capillary Tube
- Thin Wall Hastelloy G30 Tube
- Heavy Wall Hastelloy G30 Pipe
Customized dimensions and non-standard specifications are available according to customer drawings and project requirements.
Get more about other grades of nickel alloys
Hastelloy G30 Tube Manufacturing Process
TSM Technology adopts strict quality-controlled manufacturing processes to ensure consistent product performance and dimensional accuracy.
Raw Material Melting
Premium nickel alloy raw materials are melted using vacuum induction melting and vacuum arc remelting processes for purity and uniform composition.
Hot Extrusion
Billets are hot extruded to form hollow tube shells under controlled temperatures.
Cold Pilger Rolling
Multiple cold rolling and cold drawing processes are used to achieve precise wall thickness and surface finish.
Heat Treatment
Solution annealing and bright annealing improve corrosion resistance and mechanical properties.
Final Finishing
Processes include straightening, cutting, polishing, pickling, beveling, and dimensional inspection.
Quality Inspection
EN 10204 3.1 MTR (Mill Test Certificate)
Hydrostatic / Pneumatic test
Ultrasonic (UT) & Eddy current (ET)
Intergranular corrosion test per ASTM A262
Third-party inspection (SGS,TUV, BV) on request
Complete EN 10204 3.1 mill test certificates are provided with each shipment.
Hastelloy G30 Tube vs Hastelloy C276
| Property | Hastelloy G30 | Hastelloy C276 |
|---|---|---|
| Main Advantage | Excellent oxidizing acid resistance | Superior reducing acid resistance |
| Chromium Content | Higher | Lower |
| Phosphoric Acid Resistance | Excellent | Very Good |
| Sulfuric Acid Resistance | Excellent | Excellent |
| Chloride Resistance | Excellent | Excellent |
| Cost | More economical in some acid systems | Higher |
| Typical Application | Fertilizer & phosphoric acid plants | Severe mixed chemical processing |
Hastelloy G30 is often preferred for phosphoric acid and oxidizing acid applications, while Hastelloy C276 is commonly selected for broader chemical resistance in mixed aggressive environments.
Key Features and Advantages of G30 Material
Superior P2O5 Resistance
Exceptional life in concentrated 'wet process' phosphoric acid evaporators, outperforming Alloys 625 and G-3.
Oxidizing Acid Passivity
High chromium content ensures stable passivity in boiling nitric acid and mixed-acid pickling baths.
Localized Attack Immunity
Proven resistance to pitting and crevice corrosion underneath deposits in phosphoric acid slurry evaporators.
As-Welded Suitability
Resists grain-boundary precipitates in the heat-affected zone, allowing for use in the as-welded condition.
Chloride SCC Resistance
Virtually immune to chloride-induced stress corrosion cracking compared to 300-series stainless steels.
Nuclear Industry Reliability
Standard material for dissolvers and reboilers in high-activity waste reprocessing and fuel dissolution.
Key Industrial Applications for Hastelloy G30 Tubing
Hastelloy G-30 (UNS N06030) is a high-performance, nickel-chromium-iron alloy specifically engineered to outperform other metals in highly aggressive acidic environments. It is the premier choice for handling "wet process" phosphoric acid and complex mixtures of nitric, hydrofluoric, and sulfuric acids, providing unmatched durability where traditional stainless steels fail.
Fertilizer Production
Essential for evaporator tubes and heat exchangers in concentrated phosphoric acid plants.
Nuclear Industry
Used in dissolvers and reboilers for nuclear fuel recycling and high-activity waste management.
Acid Pickling Systems
Vital hardware for nitric/hydrofluoric pickling baths used in global stainless steel production.
Petrochemical & Mining
Applied in leaching systems where highly oxidizing mixed acids are used to recover precious metals.
Partner with TSM Technology: Global titanium Nickel Alloy suppliers
Choosing TSM Technology means selecting 14 years of material innovation and a supply chain built for reliability. We export to over 70 countries, supporting massive industrial projects with precision.
•Certified Quality: AS9100 and ISO 9001 certified quality management systems ensure full material traceability (MTC).
•Advanced Testing: Every batch is verified through Ultrasonic (UT), Radiographic (RT), and Eddy Current (ET) testing to ensure integrity.
•Smart Factory: Our three specialized factories ensure a reliable monthly capacity of 300 tons, eliminating supply chain risks for your projects.
•Expert Consulting: Our team of materials specialists provides tailored advice on alloy selection and fabrication for your specific chemical environment.
Packaging and Delivery
FAQ
Q: What Is Hastelloy G30 Tube Used For?
A: Hastelloy G30 tubes are mainly used in phosphoric acid production, sulfuric acid systems, heat exchangers, fertilizer plants, and highly corrosive chemical processing equipment.
Q: Is Hastelloy G30 Better Than C276?
A: Hastelloy G30 provides superior resistance to oxidizing acids and phosphoric acid, while Hastelloy C276 offers broader resistance in mixed reducing and oxidizing chemical environments.
Q: What Standards Apply To Hastelloy G30 Tubes?
A: Common standards include ASTM B622 for seamless tubes and ASTM B619/B626 for welded tubes. (Nickel Systems)
Q: Can Hastelloy G30 Tubes Be Welded?
A: Yes. Hastelloy G30 has good weldability and can be fabricated using standard nickel alloy welding procedures.
Q: What Industries Use Hastelloy G30 Tubes?
A: Industries include chemical processing, fertilizer manufacturing, pollution control, marine engineering, heat exchanger manufacturing, and sulfuric acid processing.
Q: Are Custom Sizes Available?
A: Yes. TSM Technology can manufacture customized Hastelloy G30 tubes according to customer specifications and drawings.
Q: Why does Hastelloy G30 cost more?
A: The core justification for the higher cost of hastelloy g30 is its unparalleled resistance to commercial-grade industrial acids which often contain high levels of impurities like fluorides, chlorides, and iron ions.
Contact us
TSM Technology supplies premium-quality Hastelloy G30 seamless and welded tubes with strict quality control and global delivery support. Whether you require standard sizes or customized nickel alloy tubing solutions, our engineering and sales teams are ready to assist your project.
Contact us today for pricing, technical support, stock availability, and material recommendations.
Email: info@tsm-titanium.com
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