Chanchai Stainless is a highly regarded producer and supplier of high-quality stainless steel products with its main headquarters located in Bangkok, Thailand. With proficiency over a broad range of stainless steel alloys and grades, the company boasts an international-standard delivery of high-strength, high-performance solutions. Amongst its specialized products, Stainless Steel 348H Tubing ranks high as a highly dependable option for industries seeking high strength, corrosion resistance, and high-temperature stability. Engineered with precision, these tubes find use in critical applications where performance and durability are a must. Chanchai Stainless is dedicated to excellence, precision, and customer satisfaction, providing reliable products for various industrial sectors.
Stainless Steel 348H Tubing is an austenitic chromium-nickel Columbium-stabilized steel alloy with a composition that typically consists of 17–19% Chromium, 9–13% Nickel, and 0.04–0.10% Columbium, combined with small amounts of manganese and silicon. The alloy has a very good resistance to corrosion, oxidation, and creep, thus making it extremely suitable for prolonged operation at high temperatures. The material has better mechanical properties, including tensile strength and resistance, with structural stability. Stainless Steel 348H Tubing is suitable for extreme industrial conditions requiring reliability as well as long-term thermal performance.
| Sizes: | 1/8″ to 24″ |
| ASTM A312 Steel grades: | TP304/304L/304H |
| ASTM A312 Schedules: | STD, XS, XXS, SCH5S, SCH10/10S, SCH20, SCH30, SCH40/40S, SCH60, SCH80/80S, SCH100, SCH120, SCH140, SCH160 |
| Standards: | ASTM A312, ASME SA312 |
| Lengths: | SRL and DRL 5meters up to 11meters available from Stock or Production. |
| Ends: | Plain/Bevelled |
| AISI 348H Chemical Properties | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| C | Mn | P | S | Si | Cr | Ni | Cb | Co | Ta |
| 0.08 Max | 2.00 Max | 0.045 Max | 0.030 Max | 1.00 Max | 17.0-20.0 | 9.0-13.0 | 1.10 Max | 0.20 Max | 0.10 Max |
| Yeild strength | Tensile strength | Elongation | Reduction |
| Min 0.2% Mpa | Min Mpa | Min % | Min % |
| 205 | 515 | 30 | 50 |
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We maintains the maximum quality levels by conducting a serious testing and testing certification process to ensure Stainless Steel 348H Tubing quality. Each of the products, before they reach the customers’ doorstep, will undergo proper tests including dimensional verification, chemical analysis, and some mechanical testing procedures. The respective company issues an MTR ensuring the material conformity to international norms and specifications.
This tubing is seamless, available in various sizes with precise dimensions. It offers excellent corrosion resistance suitable for high-temperature applications.
Welded for structural integrity, available in a range of sizes. Known for its robust construction and corrosion resistance, ideal for industrial applications.
Designed specifically for heat transfer applications, available in customized sizes. Offers superior resistance to corrosion and thermal stress.
Precision tubing with controlled dimensions for instrumentation and control systems. Provides high corrosion resistance and reliability in sensitive environments.
Engineered for high-pressure boiler systems, available in standard and custom sizes. Resistant to corrosion and oxidation, ensuring long-term performance.
U-shaped tubes used in heat exchangers and condensers, available in diverse dimensions. Offers excellent resistance to corrosion and stress cracking.
Specifically designed for condenser applications, available in various diameters. Provides superior corrosion resistance and heat transfer efficiency.
Tubes with extended surface area for enhanced heat transfer efficiency, available in multiple configurations. Offers exceptional resistance to corrosion and oxidation.
Stainless Steel 348H Tubing is widely used in industries with severe temperature and corrosive environments. Its excellent resistance to intergranular corrosion and oxidation leads to the use of heat exchangers, boilers, condensers, and reactor vessels. The petrochemical industry, power generation industry, and aerospace industry depend on it for hot and stressed exposed components. It is also employed in pharmaceutical processing equipment, furnace appliances, and air filtration units with high-temperature applications. With stability and durability under extreme operational conditions, Stainless Steel 348H Tubing offers long-term performance, ensuring efficiency, reliability, and safety in high-end industrial applications across diverse industries.







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