As a premier global supplier, TSM TECHNOLOGY CO specializes in high-performance nickel alloys. Hastelloy C276 pipe and hastelloy C276 tube products represent the pinnacle of corrosion resistance in the most aggressive chemical environments. Whether you require an ASTM B622 Hastelloy C276 tube for high-pressure systems or a custom Hastelloy C276 tube for specialized heat exchangers, our technical expertise ensures your project meets the highest safety and performance standards. Explore our comprehensive specifications, Chinese manufacturing sizes, and current market pricing below.
What is C276 Hastelloy Pipe?
The C276 Hastelloy pipe (UNS N10276) is a wrought nickel-chromium-molybdenum alloy that is widely considered the most versatile corrosion-resistant alloy available today. This alloy C276 pipe is specifically engineered to alleviate concerns over welding by utilizing an extremely low carbon and silicon content, which prevents carbide precipitation during the welding process.
Key characteristics of our Hastelloy C276 include:
•Exceptional Versatility: It withstands both oxidizing and reducing environments, from hot contaminated mineral acids to wet chlorine gas.
•Localized Corrosion Resistance: Outstanding protection against pitting, crevice corrosion, and stress corrosion cracking (SCC).
•High-Temperature Stability: Maintains mechanical integrity in environments up to 1900°F (1037°C).
As leading hastelloy c276 pipe manufacturers, TSM Technology Co ensures every mill run is optimized for structural integrity and longevity in harsh chemical processing zones.
Chinese Hastelloy C276 Tube Sizes & Customization
TSM Technology Co 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) |
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.
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.
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