ASTM A312 Tp 304h High Temperature and Corrosion Resistant Seamless and Welded Stainless Steel Pipe

ASTM A312 Tp 304h High Temperature and Corrosion Resistant Seamless and Welded Stainless Steel Pipe

1. Product Overview

The ASTM A312 Tp 304h stainless steel pipe is a high - performance product designed to meet the demanding requirements of various industrial applications. This pipe is available in both seamless and welded forms, offering flexibility to different project needs. The "304h" grade is a modification of the standard 304 stainless steel, with a higher carbon content that enhances its high - temperature strength and creep resistance.

2. Surface Treatment

The pipe undergoes a complete surface treatment process. This comprehensive treatment not only gives the pipe a smooth and clean appearance but also provides an additional layer of protection against corrosion. The smooth surface reduces the risk of debris accumulation and fouling, which is crucial in applications where maintaining a clean internal surface is essential, such as in food processing and pharmaceutical industries.

3. Manufacturing Techniques

• Hot Rolling: The hot - rolling process is used to shape the stainless steel into pipes. During hot rolling, the steel is heated to a high temperature and then passed through a series of rollers. This process allows for the production of pipes with a large diameter and wall thickness. Hot - rolled pipes have good mechanical properties, including high strength and toughness, making them suitable for applications in high - pressure and high - temperature environments.
• Cold Rolling: Cold rolling is another important manufacturing technique for these pipes. After hot rolling, some pipes may undergo cold rolling to achieve more precise dimensions and a better surface finish. Cold - rolled pipes have a more uniform wall thickness and a smoother surface compared to hot - rolled pipes. They are often used in applications where tight tolerances and high - quality finishes are required, such as in architectural and decorative applications.

4. High - Temperature and Corrosion Resistance

• High - Temperature Resistance: The ASTM A312 Tp 304h pipe is specifically designed to withstand high temperatures. The higher carbon content in the 304h grade provides improved creep strength, which means it can maintain its shape and integrity under long - term exposure to high temperatures. This makes it an ideal choice for applications in power plants, petrochemical refineries, and other industries where high - temperature processes are involved.
• Corrosion Resistance: Stainless steel is well - known for its corrosion resistance, and the 304h grade is no exception. It contains chromium, which forms a passive oxide layer on the surface of the pipe. This layer protects the underlying metal from corrosion by preventing the penetration of oxygen and other corrosive agents. The pipe can resist corrosion in a wide range of environments, including mild acids, alkalis, and marine atmospheres.

5. Applications

• Power Generation: In power plants, these pipes are used in boilers, superheaters, and reheaters. Their high - temperature resistance allows them to handle the extreme heat generated during the power - generation process, ensuring reliable and efficient operation.
• Petrochemical Industry: In petrochemical refineries, the pipes are used for transporting various chemicals and fluids. Their corrosion resistance protects against the corrosive nature of many petrochemical products, while their high - temperature strength enables them to withstand the high - pressure and high - temperature conditions in the refining process.
• Food and Beverage Industry: The smooth surface finish and corrosion resistance of the pipes make them suitable for use in food and beverage processing plants. They can be used for transporting water, milk, and other food products without the risk of contamination.
• Architectural and Structural Applications: Due to their aesthetic appeal and good mechanical properties, the pipes can be used in architectural and structural applications. They can be used for handrails, decorative elements, and structural supports in buildings.

6. Company - Related Assurance

The ASTM A312 Tp 304h pipes are manufactured by Jiangsu Zhonggongte Metallurgical Technology Co., Ltd., a reputable manufacturer established in 2022. The company has overseas offices, which facilitates better communication and service for international customers. With an export share above US$100 million, it has a proven track record in the global market. The company holds the ISO9001 production certification, which means that strict quality control measures are in place throughout the manufacturing process. Their comprehensive service package includes providing detailed product information and samples, flexible price negotiation, efficient order processing, production follow - up, quality control, logistics arrangement, and excellent after - sale service. The company's technical team, composed of sales elites proficient in special alloy knowledge, can quickly explain the product's professional knowledge to customers. The market and sales team accurately grasp market dynamics, while the customer service team offers 24 - hour high - quality service.

In conclusion, the ASTM A312 Tp 304h high - temperature and corrosion - resistant seamless and welded stainless steel pipe is a high - quality product with excellent performance and wide - ranging applications. Backed by a reliable manufacturer, it is a trustworthy choice for customers around the world.