Thick-walled stainless steel pipe, also named stainless steel hollow bar, are usually used for mechanical applications or manufacturing hollow components such as nozzles, reducers, couplings etc. These applications always require corrosion-resistant or high-temperature strength. Thick-walled stainless steel pipes can be furnished in different shapes such as round, square, rectangular etc. while hollow bars are produced in round shape. The most common standard applied for thick-walled stainless steel pipe or hollow bar is ASTM A511/A511M-16 which covers requirements for chemical compositions, mechanical properties and diameters. Wisine Co. Limited produces thick-walled stainless steel pipe strictly according to the standard under ISO 9001 system. Each product delivered from Wisine is a brand warrantee.