Hastelloy C276 Round Bars

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Hastelloy C276 round bars possess a plethora of outstanding characteristics, making them a top - notch choice for a wide array of applications. Their most prominent feature is their exceptional corrosion resistance. They can endure the harsh corrosion of numerous aggressive media, including strong acids like hydrochloric acid, sulfuric acid, and nitric acid, as well as highly corrosive chloride - containing environments. This remarkable property not only extends the service life of products made from these round bars but also significantly reduces maintenance and replacement costs. Additionally, Hastelloy C276 round bars exhibit excellent high - temperature performance. They can maintain stable mechanical properties even at elevated temperatures, making them suitable for high - temperature industrial processes. Moreover, these round bars offer good formability and weldability, facilitating the manufacturing of complex - shaped components.

The combination of a high content of both elements molybdenum and chromium in the alloy used in the manufacture of Hastelloy C276 round bar, together with the addition of tungsten, make these bars highly resistant to corrosion in many media. For instance, the alloy demonstrates strong resilience towards chloride ion stress related corrosion cracking, along with localized attacks such as pitting, crevice corrosion. Not forgetting to mention that the UNS N10276 Hastelloy Square Bar also has good resistance to general corrosion. Although this alloy grade can operate in oxidizing atmospheres up to an elevated temperature range of about 1900°F. However, the C276 Hastelloy Polished Bar lacks sufficient chromium content in its alloy, therefore it tends to perform poorly when exposed to the most strongly oxidizing environments for e.g. hot, concentrated nitric acid. The low carbon content present in the Hastelloy C276 Bar is what ensures that the metal can be utilized in an as-welded condition. Since the alloy cannot be hardened by heat treatment, the Hastelloy Alloy C276 Rods are often hardened by a cold working process, which in turn increases its tensile strength properties.Hastelloy C276 Round Bar is supplied by Jinie Technology (Jiangsu) Co., LTD at reasonabe prices. We are a global exporter of ASTM B574 UNS N10276 Bars. With almost 50 years in the business, we can offer the finest expertise to build practically any type of metal, alloys or steel. All of our manufactured products are subject to the rigirous audit process, which allow us to deliver quality products that meet customer requirements at low cost.

Corrosion Resistance

Considered one of the most versatile corrosion resistant alloys available, Hastelloy C-276 exhibits excellent resistance in a wide variety of chemical process environments including those with ferric and cupric chlorides, hot contaminated organic and inorganic media, chlorine, formic and acetic acids, acetic anhydride, seawater, brine and hypochlorite and chlorine dioxide solutions. In addition, alloy C-276 resists formation of grain boundary precipitates in the weld heat affected zone making it useful for most chemical processes in the as-welded condition. This alloy has excellent resistance to pitting and stress corrosion cracking.

High - Temperature Performance

These round bars perform admirably at high temperatures. They can withstand continuous high - temperature exposure and maintain their mechanical strength and structural integrity. This property makes them suitable for applications in high - temperature furnaces, heat treatment equipment, and chemical reactors operating at elevated temperatures. Their ability to resist creep deformation under long - term high - temperature and stress conditions is crucial for ensuring the stability of industrial equipment.

Formability and Weldability

Despite their high - performance nature, Hastelloy C276 round bars have good formability. They can be processed using conventional metal - working techniques such as forging, rolling, and machining to achieve the desired shape. In terms of welding, common welding methods like tungsten inert gas welding (TIG) and metal inert gas welding (MIG) can be applied. After welding, the welded joints retain excellent corrosion resistance and mechanical properties, ensuring the overall integrity of the fabricated components. The following table presents some basic performance parameters of Hastelloy C276 round bars:

Hastelloy C276 Cold Forming
Hastelloy C276 round bar annealed treatment is followed for every forming operations. For cold deformation at high-level, cold forming is done for the deformation process where cracking is a possibility because of mild forming. The cold forming process is used to restore the resistance to stress corrosion cracking. For most of the time, a solution anneal is recommended after the complete formed or annealed operation which helps to restore the material to its optimum condition and properties.

Hastelloy C276 Hot Forming
Hastelloy C276 round bar can be hot-worked into various forms but they are more sensitive to the amounts and rates of hot-reduction with the austenitic stainless steels. During Hot working, all parameters should be taken into account. Special attention should be given to the temperature at which the alloy begins to melt. The high strengths of the Hastelloys at elevated temperature, their low thermal conductivity, and their hardening rate. Moreover, when the temperature is low in the hot working range of the metal, they are resistance to deformation is increased rapidly. So, while hot working practices that give heavy initial reduction followed by moderate final reductions, also with frequent re-heating gives the good result.

Hastelloy C276 Machining
Hastelloy C276 round bar can be machined using conventional production methods at satisfactory rates. During the machining processes these alloys work harden rapidly, generate high heat during cutting, weld to the cutting tool surface and offer high resistance to metal removal because of their high shear strengths. Following are key points that should be considered during machining operations: Capacity, Tooling, Lubrication/Coolants, Drilling. The actual operating parameters are to serve only as a guide and are not to be taken as absolute values.

Hastelloy C276 Welding
Gas tungsten-arc welding, gas metal-arc welding, shielded metal-arc (coated electrode) welding, or resistance welding may be used. Minimum heat input consistent with adequate penetration reduces the chance of hot-cracking. Oxyacetylene welding should be avoided due to possibility of carburization. Hastelloy C276 round bar can be used in the as-welded condition in most chemical and petrochemical process equipment.

Chemical and Petrochemical Processing
Hastelloy C276 Round Bar is widely used in the chemical and petrochemical industries because it resists many corrosive environments, including strong acids like sulfuric, hydrochloric, and phosphoric acids. This makes it ideal for critical components such as chemical reactors, distillation columns, heat exchangers, and scrubbers, where exposure to aggressive chemicals is common.

Oil and Gas Industry
In the oil and gas sector, Hastelloy C276 Round Bar is highly valued for resisting chloride-induced stress corrosion cracking and pitting, making it perfect for offshore platforms and subsea pipelines. Its durability in harsh environments, such as sour gas and seawater, ensures the safety and longevity of equipment like valves, pipelines, and heat exchangers in these demanding applications.

Power Generation
Hastelloy C276 Round Bar is a key material in power generation due to its high-temperature stability and resistance to thermal oxidation. These properties make it ideal for critical components such as boilers, condensers, and heat exchangers, where exposure to high-pressure steam and corrosive flue gases is inevitable.

Pharmaceutical Industry
In the pharmaceutical industry, Hastelloy C276 Round Bar is favored for its resistance to corrosion and contamination, making it essential for pharmaceutical reactors, storage tanks, and pipework systems, where cleanliness and product integrity are crucial. Its non-toxic and non-magnetic properties further enhance its suitability for sensitive pharmaceutical processes.

Pollution Control and Waste Treatment
Hastelloy C276 Round Bar plays a vital role in pollution control and waste treatment systems due to its ability to withstand highly acidic and corrosive environments. It is commonly used in flue gas desulfurization (FGD) systems, chemical scrubbers, and wastewater treatment plants, where its durability and corrosion resistance ensure reliable, long-term performance.

Marine and Pulp and Paper Industry
In marine environments, Hastelloy C276 Round Bar resists seawater corrosion, making it suitable for marine fixtures and subsea components. In the pulp and paper industry, it is used in digesters, bleach plants, and recovery boilers, where it withstands corrosive chemicals and high temperatures, ensuring operational efficiency and longevity.