Hastelloy C276 Tube Manufacturer & Supplier
TSM Technology is a professional manufacturer and global supplier of Hastelloy C276 tubes and pipes in China. With more than 14 years of experience in nickel alloy manufacturing, we provide high-performance UNS N10276 seamless and welded tubing solutions for highly corrosive industrial environments. Our Hastelloy C276 tubes are manufactured in accordance with ASTM B622, ASTM B619, and ASTM B626 standards, offering excellent resistance to oxidizing and reducing media, chloride-induced corrosion, pitting, crevice corrosion, and stress corrosion cracking.
At TSM Technology, we manufacture and supply ASTM B622 Hastelloy C276 seamless tubes and welded pipes in a wide range of sizes and specifications for industrial projects worldwide. We supply custom sizes, precision tolerances, and complete inspection documentation for demanding applications in chemical processing, offshore engineering, flue gas desulfurization systems, marine equipment, heat exchangers, and acid handling systems.
What is C276 Hastelloy Pipe?
ASTM B622 / UNS N10276 Seamless & Welded Tubing
Hastelloy C276 tube is a nickel-molybdenum-chromium alloy tube designed for highly corrosive environments where conventional stainless steels often fail. Thanks to its excellent resistance to oxidizing and reducing media, C276 tubing is widely used in chemical processing, marine engineering, flue gas desulfurization (FGD), heat exchangers, and offshore systems.
Compared with standard stainless steel tubing, Hastelloy C276 offers superior protection against pitting, crevice corrosion, chloride attack, and stress corrosion cracking. It also performs reliably in environments containing wet chlorine, sulfuric acid, hydrochloric acid, and contaminated process chemicals.
Hastelloy C276 Tube Specifications
| Specification | Details |
|---|---|
| Material Grade | Hastelloy C276 |
| UNS Number | UNS N10276 |
| Werkstoff No. | 2.4819 |
| Standards | ASTM B622 / ASTM B619 / ASTM B626 |
| Type | Seamless Tube / Welded Tube / Pipe |
| Outer Diameter | 6 mm – 114.3 mm |
| Wall Thickness | 0.5 mm – 8 mm |
| Length | Up to 18000 mm |
| Surface Finish | Pickled / Bright Annealed / Polished |
| Delivery Condition | Solution Annealed |
| Inspection | Eddy Current / Ultrasonic / PMI / Hydro Test |
Chinese Hastelloy C276 Tube Sizes & Customization
TSM Technology leverages the massive production capacity of the Chinese industrial base to offer an unrivaled range of chinese hastelloy c276 tube sizes. From standard Schedule 10s and 40s to extra-heavy walls, we maintain a massive inventory of ready-to-ship stock.We recognize that every project has unique requirements. As premier hastelloy c276 pipe suppliers, we offer custom hastelloy c276 tube services including:
•Custom Lengths: Up to 18 meters for seamless tubes.
•Precision Tolerances: OD/WT tolerances as tight as ±0.05mm for instrumentation tubing.
•Surface Finishes: BA (Bright Annealed), EP (Electropolished), and MF (Mirror Finished).
•End Preparation: Beveled, threaded, or plain ends per customer blueprint.
Technical Specifications & Material Data
Chemical Composition
The performance of the hastelloy c276 heat resisting alloy tube is derived from its precise chemical balance. The high molybdenum content (15-17%) provides its trademark resistance to pitting, while the addition of tungsten (3-4.5%) enhances corrosion resistance in the most severe environments.
| Grade | C | Mn | Si | S | Co | Ni | Cr | Fe | Mo | P |
| C276 | 0.010 max | 1.00 max | 0.08 max | 0.03 max | 2.50 max | 50.99 min* | 14.50 – 16.50 | 4.00 – 7.00 | 15.00 – 17.00 | 0.04 max |
Mechanical Properties
Our Hastelloy C276 pipe specification adheres to stringent ASTM and ASME standards. The material maintains excellent ductility even after prolonged exposure to heat, making it ideal for high-pressure piping systems.
| Property | Metric (Annealed) | English (Annealed) |
| Tensile Strength | ≥ 690 MPa | ≥ 100,000 psi |
| Yield Strength (0.2% Offset) | ≥ 283 MPa | ≥ 41,000 psi |
| Elongation in 2 in. | 40% | 40% |
| Hardness (Rockwell B) | ≤ 100 HRB | ≤ 100 HRB |
Physical Properties
Understanding the physical properties of the alloy c276 pipe is essential for thermal expansion and fluid dynamic modeling in chemical reactors and heat exchangers.
| Property | Value |
| Density | 8.89 g/cm³ (0.321 lb/in³) |
| Melting Range | 1325 - 1370°C (2415 - 2500°F) |
| Thermal Conductivity | 9.8 W/m·K (68 Btu·in/ft²·hr·°F) |
| Electrical Resistivity | 1.30 μΩ·m (510 Circular mil·ohm/ft) |
| Specific Heat | 427 J/kg·K (0.102 Btu/lb·°F) |
Quality Inspection for Hastelloy C276 Tubes
To ensure stable performance and international quality compliance, all Hastelloy C276 tubing products undergo strict inspection procedures:
- Ultrasonic Testing (UT)
- Eddy Current Testing (ET)
- Hydrostatic Pressure Testing
- Dimensional Inspection
- Surface Quality Inspection
- Chemical Composition Analysis
- Mechanical Property Testing
- Third-party inspection is available upon request
Manufacturing Types: Seamless vs. Welded Pipe
Hastelloy C276 Seamless Tube
Manufactured via cold drawing or hot extrusion, the hastelloy c276 seamless tube (ASTM B622) offers superior pressure ratings and uniformity. It is the preferred choice for high-critical applications where internal integrity is paramount.
Standard：ASTM B622 / ASME SB622
Size Range：1/8" to 12" NPS
Tolerance：Tight (per ASTM B829)
Hastelloy C276 Welded Pipe
For larger diameters, hastelloy c276 welded pipe (ASTM B619/B626) provides a cost-effective solution without compromising corrosion resistance. Our advanced welding techniques ensure 100% X-ray quality seams.
Standard：ASTM B619 / ASME SB619
Size Range：1/2" to 150" NPS
Welding：TIG / MIG / Plasma
Industrial Performance: Corrosion Resistance Profiles
The main reason most customers choose Hastelloy C276 tube is its superior resistance to localized corrosion. During chemical processing, the presence of chlorides typically leads to catastrophic failure in stainless steel; however, Hastelloy C276 remains passivated.
Resistance to Specific Media:
Wet Chlorine Gas
One of the few materials that can withstand the corrosive effects of wet chlorine, hypochlorite, and chlorine dioxide.
Strong Oxidizers
Excellent resistance to ferric and cupric chlorides, as well as organic and inorganic chloride-contaminated media.
Reducing Acids:
Superior to stainless steel and many other nickel alloys in boiling hydrochloric and sulfuric acids.
Sour Gas (H2S):
Widely utilized in oil and gas production to combat sulfide stress cracking.
Advantages of Hastelloy C276 Tubing
Excellent Corrosion Resistance
Hastelloy C276 seamless tubes offer exceptional resistance to oxidizing and reducing chemicals, making them ideal for harsh acid processing environments.
Superior Resistance To Chlorides
UNS N10276 tubing performs extremely well in chloride-containing systems where stainless steels commonly fail due to pitting and stress corrosion cracking.
High Temperature Stability
C276 nickel alloy tubes maintain structural integrity and corrosion resistance at elevated temperatures in aggressive process conditions.
Long Service Life
The alloy significantly reduces maintenance frequency and downtime in chemical plants and offshore systems, improving overall operational efficiency.
Industrial Applications of Hastelloy C276 Tubing
Hastelloy C276 (UNS N10276) is a high-performance nickel-molybdenum-chromium alloy, prized for its exceptional corrosion resistance in the most aggressive industrial environments. Its unique chemistry makes it indispensable across several critical sectors:
Chemical Processing
It is the standard for heat exchangers, reaction vessels, and evaporators handling highly corrosive mineral acids, solvents, and chloride-contaminated media.
Oil & Gas
C276 is essential for 'sour gas' applications, resisting sulfide stress cracking and localized pitting in high-pressure, high-temperature (HPHT) subsea environments.
Pollution Control
Vital in Flue Gas Desulfurization (FGD) systems, C276 tubes resist the condensed sulfuric and hydrochloric acids found in scrubbers and chimney liners.
Marine Engineering
Due to its immunity to seawater-induced stress corrosion cracking, it is frequently used in desalination plants and offshore equipment.
Packaging
Our Hastelloy C276 tubes are packed using export-standard wooden cases, waterproof wrapping, and anti-damage protection suitable for international transportation.
We support worldwide delivery for customers in Europe, North America, Southeast Asia, the Middle East, and other global markets.
Why Choose TSM for Hastelloy C276 Tubes
- 14+ years of nickel alloy manufacturing experience
- Full compliance with ASTM / ASME standards
- Seamless and welded tube production available
- Custom OD, wall thickness, and length support
- 100% PMI material verification
- Eddy current and ultrasonic testing
- EN 10204 3.1 / 3.2 certification available
- Third-party inspection supported (SGS, TUV, BV)
- Fast quotation and global export service
- Stable supply capacity with short lead times
FAQ
Q: What Is The Difference Between Hastelloy C276 Pipe And Tube?
A: Generally, tubes are specified by outside diameter and wall thickness with tighter tolerances, while pipes are specified by nominal pipe size. Tubes are commonly used in heat exchangers and instrumentation systems.
Q: Is Hastelloy C276 Suitable For Hydrochloric Acid?
A: Yes. Hastelloy C276 has excellent resistance to hydrochloric acid across a wide range of concentrations and temperatures.
Q: What Standard Covers Hastelloy C276 Seamless Tube?
A: ASTM B622 is the primary specification for seamless Hastelloy C276 tubing.
Q: Can You Provide Custom Sizes?
A: Yes. TSM Technology supplies customized OD, wall thickness, length, and surface finish according to project requirements.
Q: Do You Provide Mill Test Certificates?
A: Yes. EN10204 3.1 and third-party inspection reports are available.
Related Nickel Alloy Products
Request a Quote for Hastelloy C276 Tube
Looking for a reliable Hastelloy C276 tube supplier in China?
TSM Technology provides high-quality nickel alloy tubing solutions with competitive pricing, strict quality control, and fast delivery support for global industrial projects.
Contact our sales team today at info@tsm-titanium.com
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