Steel pipes applied on FPSO ships can be divided into welded steel pipes and seamless steel pipes.The seamless steel pipes for FPSO(Floating Production Storage and Offloading) ships usage are mainly used for Level 1 & Level 2 pressure pipes in piping s ...

Haihao Group supply & manufacture seamless steel pipes,welded steel pipes,casing and tubing pipes,butt welding pipe fittings,forged pipe fittings and forged flanges in different dimensions, specifications, standards, materials.Our products are widely i ...

Steel pipes applied on FPSO ships can be divided into welded steel pipes and seamless steel pipes. Among them,there are mainly the following types of welded steel pipes: Spiral welded pipes in Haihao Group According to the different welding process,the wel ...

The sockolet and the weldolet both have a run end and a branch end.The run end is connected to the large diameter pipe,and the branch end is connected to the smaller diameter pipe.The sockolet and the weldolet are fillet welds connected to the run pipe.It ...

Outlet pipe fittings are also known as pipe branch fittings,branch connection fittings,tube base or O’lets.It provides a branch of a large-diameter pipe to a small-diameter pipe.Outlet is the reinforcing fitting mainly used branch pipe connection. Ty ...

Threaded couplings and pipe nipples are the commonly used forged pipe fittings,both are a short pipe with threads,but they are different.So what are the differences between threaded couplings and pipe nipples? ASME B16.11 A182 F304 Threaded Half Couplings ...

According to different manufacturing methods,seamless steel pipe can be divided into hot-rolled seamless steel pipe,cold-rolled seamless steel pipe,cold-drawn seamless steel pipe and extruded seamless steel pipe. What is hot rolled seamless steel pipe? Hot ...

API 5L Gr.B pipes and ASTM A106 Gr.B pipes are both carbon steel pipes and used for oil and gas transportation. Both of them can be welded,but ASTM A106 Gr.B pipes are seamless pipes. The difference between API 5L Gr.B pipes and ASTM A106 Gr.B pipes: API 5 ...

Electirc resistance weld(ERW),spiral submerged arc weld(SSAW),longitudinal submerged arc weld(LSAW) are the common methods of forming process of welded steel pipes.From manufacturing processes we can know that SAW steel pipes(LSAW steel pipes,SSAW steel pi ...

Spiral welded steel pipe production process: spiral steel pipe made of steel coiled coil as raw material,often heated and extruded,and welded by automatic double wire double-sided submerged arc welding process. 1. Raw materials are strip coils, welding wir ...

ASTM A106 and ASTM A53 are most commonly used carbon steel pipe types in industry today,and they’re very similar.However,they still have differences:ASTM A106 can only applies to seamless steel pipes,whereas ASTM A53 can either be seamless steel pipe ...

The 3PE coated steel pipe is with 3 layer coatings,the first layer of epoxy powder (FBE> 100um),the second adhesive(AD) 170-250um,the third layer of polyethylene (PE) 2.5-3.7mm.Thus the 3PE coated steel pipe enjoys good performance-abrasive resistance,s ...

Coated with epoxy coatings,that is FBE pipe,also called fusion bonded epoxy pipe.It is an externally applied heat resin for pipes,with a form of dry powder at thickness 400-600 microns on to the heated surface of pipe.Once the FBE coated on the pipe surfac ...

ERW,its full name is electric resistance weld.It is a welding method in which pipe is welded without adding filler material.Electric resistance welded steel pipe is manufactured by cold-forming a sheet of steel plate into a cylindrical shape.ERW has the we ...

API 5L line pipes can be divided into two grades:API 5L PSL1 and API 5L PSL2.PSL is short for Product Specification Levels.Both levels of API 5L line pipes contain seamless steel pipe and welded steel pipe and used of a pipeline in the transportation of pe ...

For PSL2 pipe there is a limit on Maximum Yield & Ultimate Tensile Strength whereas for PSL1 pipe meeting the minimum requirements are sufficient.The second requirement that is mandatory for PSL2 pipe is fracture toughness which is not required for the ...

API 5L PSL1 and PSL2 steel pipe contain seamless steel pipe and welded steel pipe,three elements change when requirements change from PSL1 to PSL2: First is Carbon. Maximum Carbon for Seamless PSL1 pipe is 0.28% for the grade B & higher. For all grade ...

The American Petroleum Institute specification API 5L line pipe covers seamless and welded steel line pipe.This is steel pipe for pipeline transportation systems in the petroleum and natural gas industries.API 5L is suitable for conveying gas,water,and oil ...

What is a seamless steel pipe? A steel pipe made of a single piece of metal with no seams on its surface is called a seamless steel pipe.According to the production method,the seamless pipe is divided into hot rolled pipe,cold rolled pipe,cold drawn pipe,e ...

What is hot galvanized and cold galvanized? Hot-dip galvanized is a method in which steel components are immersed in molten zinc to obtain a metal coating.The workpiece is degreased,pickled,dipped,dried and immersed in molten zinc. Cold galvanized 90 degre ...