Reasons to choose stainless steel pipe

Stainless  steel pipe added nickel and chromium chemical elements to improve  corrosion resistance in various environments. Commonly used materials  are 304/L and 316/L, ASTM A312, A213, A270 and other standards. Stainless Steel 316 Round Bar is central to any construction and industrial use.

                                                      

What is stainless steel pipe?

Stainless  steel pipe is hollow and long steel, and the economic part of the steel  has a round shape. Stainless steel pipes and tubes are widely used in  petroleum, chemicals, medicine, food, light industry, tools and  equipment, structural parts, etc. Also, with the same torsion and  anti-moment strength, stainless steel is used for equipment parts and  structural projects due to its lightweight.

 

 

 

 

 

It  is also used to manufacture conventional weapons, artillery,  projectiles and others. The manufacturing process can classify it into  hot-rolled, extruded, cold-rolled, round, hexagonal, equilateral,  octagonal and other special-shaped stainless steel pipes.

 

• High temperature and generally corrosive

ASTM  A312 Standard Specification for Seamless, Welded, and Heavy-Duty  Cold-Working Austenitic Stainless Steel Tubes. Stainless steel pipes and  tubes are widely used in sulphuric acid storage tanks in the phosphate  fertilizer industry.

 

Phosphoric  acid plants with fluorosilicic acid reactors; chlorate crystals in  fertilizer production; ventilation systems in pharmaceutical factories;  filters, condensers and tubes for solvent recovery; Bleaching and  filtering equipment in the pulp and paper industry. Multi-stage flash  distillation, multi-effect low-temperature desalination. Seawater  condensate for power plants etc.

 

• Highly resistant to corrosion

The  ASME SB677 specification covers UNS N08904 (904L), UNS N08925, and UNS  N08926 (Alloy 926) and is for cold- and hot-drawn seamless steel pipe  and high-wear steel pipe. Stainless Steel 316 Pipe  covers materials for carbon steel, ferritic alloy steel, austenitic  stainless steel pipe and seamless pipe and 6% molybdenum alloy pipe.

 

• Duplex Stainless Steel Pipe

Super duplex tube covers  seamless and welded ferritic/austenitic stainless steel pipes for  general service. This specification also applies to duplex stainless  steel pipe. All pipes in this standard must provide heat treatment under  the specified temperature and cooling conditions. If the final heat  treatment is carried out in a continuous furnace, or if the heat  treatment conditions are obtained directly by quenching after hot  forming, the number of pipes of the same size and same heat batch is  determined from the specified pipe size.

 

• Excellent resistance to stress corrosion cracking

 

 

 

ASTM  A790 / ASME SA790 is a standard for seamless and welded  annealed/austenitic stainless steel pipes. Includes stainless steel  duplex tubing material. The bar is primarily designed for  ferritic/austenitic longitudinally welded seamless steel pipes and is  used for general corrosion service, with particular emphasis on  resistance to stress corrosion cracking.

 

This  type of pipe is manufactured through a seamless or automatic welding  process without adding filler metal in the welding process. Thermal  analysis is performed to determine the percentage of specific chemical  elements. Tensile tests, hardness tests, flattening tests, hydrostatic  tests and non-destructive tests shall be carried out in accordance with  the specified requirements.

 

• Corrosion resistance of stainless steel pipes and tubes

Corrosion  resistance is an essential property of stainless steel pipes. Commonly  used steels include ferritic and martensitic steels, mainly produced by  adding chromium and produced by heat treatment or annealing. Austenitic  stainless steel tubes rich in chromium and nickel are available and  provide superior resistance when used under the same conditions as  martensitic or ferritic materials.