Product Knowledge of 304L Stainless Steel Seamless Pipes

Q1: What is the core difference between 304L stainless steel seamless pipes and ordinary 304 seamless pipes?

A1: The core difference lies in the carbon content. 304L has a carbon content of ≤0.03%, and 304 has a carbon content of less than 0.08%; 304L has no intergranular corrosion risk after welding, better corrosion resistance and toughness, suitable for high-pressure, low-temperature and welding scenarios, and the price is slightly higher than ordinary 304 seamless pipes.

Q2: What is the common pressure range of 304L stainless steel seamless pipes?

A2: The common working pressure range for foreign trade is 0.6MPa-10MPa. The pressure adaptability can be adjusted according to the wall thickness. The thicker the wall thickness, the stronger the pressure-bearing capacity, which is suitable for industrial scenarios such as high-pressure pipeline transportation and pressure vessel connection.

Q3: What are the characteristics of the production process of 304L stainless steel seamless pipes?

A3: It adopts seamless production process, with no welds, smooth surface, uniform wall thickness and stable mechanical properties. It can withstand high-pressure and low-temperature environments, not easy to break and leak, with high production precision, which can meet the strict requirements of high-end foreign trade industrial orders.

Q4: Which industries are the main foreign trade export destinations of 304L stainless steel seamless pipes?

A4: They are mainly used in industrial industries such as petrochemical, electric power, water treatment and pharmaceutical, for pipeline transportation and equipment connection, especially suitable for working conditions requiring welding, high pressure and low temperature, and are one of the mainstream categories of foreign trade industrial pipes.

Q5: What are the testing standards for 304L stainless steel seamless pipes?

A5: The common testing standards for foreign trade include GB/T 14976 (national standard), ASTM A312 (American standard) and JIS G3459 (Japanese standard). The main tests include corrosion resistance, mechanical properties and dimensional accuracy to ensure they meet the use requirements of overseas customers.