AISI/SATM316 L Stainless Steel Seamless Pipe Out Diameter 38 mm, Thinkness 4 mm

AISI/SATM316 L Stainless Steel Seamless Pipe Out Diameter 38 mm, Thinkness 4 mm

Introduction

Stainless steel pipes are divided into ordinary carbon steel pipes, high-quality carbon structural steel pipes, alloy structural pipes, alloy steel pipes, bearing steel pipes, stainless steel pipes, bimetallic composite pipes, coated and coated pipes to save precious metals and meet special requirements. Stainless steel pipes have a wide variety, different uses, different technical requirements and different production methods. At present, the outer diameter range of steel pipes is 0.1-4500mm and the wall thickness range is 0.01-250mm. In order to distinguish its characteristics, steel pipes are usually classified according to the following methods

Advantages OF 316L

Corrosion resistance

316L is widely used in the chemical industry because of its excellent corrosion resistance. 316L is also a derivative steel of 18-8 austenitic stainless steel, with 2 ~ 3% Mo added. On the basis of 316L, many steel grades are also derived. For example, 316Ti is derived after adding a small amount of Ti, 316N is derived after adding a small amount of N, and 317L is derived by increasing the content of Ni and mo.

Most of the existing 316L on the market are produced according to American standards. In consideration of cost, steel mills generally limit the Ni content of products to the lower limit as far as possible. The American standard stipulates that the Ni content of 316L is 10 ~ 14%, and the Japanese standard stipulates that the Ni content of 316L is 12 ~ 15%. According to the minimum standard, there is a difference of 2% in Ni content between American Standard and Japanese standard, which is reflected in the price. Therefore, when purchasing 316L products, customers still need to see whether the products refer to ASTM or JIS standards.

The Mo content of 316L makes the steel have excellent corrosion resistance and can be ely applied to the environment containing halogen ions such as Cl -. Since 316L is mainly used for its chemical properties, steel mills have slightly lower requirements for surface inspection of 316L (compared with 304), and customers with higher surface requirements should strengthen surface inspection.

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