What is a socket welding flange? Socket welding flange are typically used on smaller sizes of high pressure pipes.These pipe flanges are attached by inserting the pipe into the socket end and applying fillet weld around the top.This allows for a smooth bor ...

Hebei Haihao Group is Chinese leading flanges,pipe fittings&steel pipes manufacturer with over 35 years experience.We will attend NEFTEGAZ 2019(the 19th International Exhibition for Equipment and Technologies for the Oil & Gas Industries). Haihao G ...

Haihao Group is one of the leading steel piping manufacturer in China. We are specialized in stainless steel flange, fittingsand pipe. A pipe bend looks like a elbow of different bending radius. The most regular pipe bends are 30 degree, 45 degree, 90 degr ...

Hebei Haihao steel pipes department provide the precision tubes to GPC Canada as mechanical parts.The inspector from GPC visited our factory to do the trial order inspection. GPC inspector check the dimensions of the precision tube in HAIHAO GPC (Genuine P ...

Because of the heavy fog and haze in north of China,government is controlling the industry production of Hebei province,China.Many piping products factories are limited and temporary shutdown by government.(The effect of haze on the steel industry in north ...

If you live in northern China,you have to put mask on,because it’s smoggy.The haze not only brings harm to the human body,but effect the steel industry in this area. Air pollution from steel pipe manufacture First,many steel companies and steel pipe ...

Hebei Haihao Group is busy producing in the 20 pieces tube sheets.This’s the second phase of the tube sheets order used in heat exchangers,these products will be installed in Australia.(Client Inspect Tube Sheets Quality and Production In Haihao Grou ...

For a piping component,it will have a working pressure,proof test pressure and burst pressure.What is the difference between these pressure specifications for pipe fittings products? Forged steel flange hydro pressure test The working pressure is the worki ...

January,27th,the European Union(EU) decided to impose definitive anti-dumping duties on imports of the steel products from China and Taiwan to protect struggling steel manufacturers in Europe. Stainless steel tubes and butt welding pipe fittings manufactur ...

Flange Collar is a kind of fittings,people also called it stub end.Flange collar products are working together with lap joint flange(Loose Flange),which are according to EN standard and DIN standard. Flange Collars For Lap Joint Flange There are different ...

Hebei Haihao Pipe Fitting Factory succeeded in experimenting and manufacturing the 5D heat induction pipe bends,the products’ size from DN400 to DN500 and the radius in 180 degree.To get this tender from Pakistan and meet the tolerance requirements o ...

Haihao Flange Factory finished high pressure and large size flanges on time,the products are used for TOTAL(Total S.A.) projects in Africe,and which are ready for shipment. Forged Weld Neck Flanges Finished In Haihao Flange Factory We received the flange o ...

Hebei Haihao Group manufactures steel piping products,like the pipes,fittings and flanges which are used not only in the fluid system,pipelines,vessels,but also the mechanism,structure. 50D Radius Pipe Bend Used For Steel Structure In Haihao Group For exam ...

The Chinese New Year is coming,Haihao factory and staffs are working hard to finish all the goods on time.All clients also want their steel pipes,fittings and flanges products to despatch before the long time new year holidays. Forged Weld Neck Flanges In ...

Hebei Haihao Group received the order request of large size tubes sheets products,and we are producing the tube sheets now.Our clients are leading engineering company,the tubes sheets diameters are around 4 meters,will be used for high capacity heat exchan ...

JIS B2220 flange products,JIS B2220 flange products tolerance-Hebei Haihao Group After more than 30 years development,Hebei Haihao Group obtained the recognition from the clients and end users of domestic markets and all over the world.We have world-famous ...

JIS B2220 Products | JIS B2220 flanges products | JIS B2220 flange products manufacturer-Hebei Haihao Group Haihao Group established in 1982,is one of the biggest flange and pipe fittings manufacturers in China.We manufacture the pipe fittings and flanges ...

JIS B2220 is Japanese Industrial Standard,it’s one of the international standards.The JIS B2220 Standard Products contain pipe fittings and flanges products.This standard specifies steel pipe flanges of normal size 10A to 1500A for normal pressure 5K ...

November 30, 2016,Canada Border Services Agency (CBSA) determine the Oil country tubular goods pup joints made in China will keep the anti-dumping tax,to project the steel pipeline industry of Canada. OCTG Coupling Joints For Oil & Gas Pipeline Manufac ...

The intergranular corrosion(intergranular attack) usually progresses along a narrow path along the grain boundary and in a severe case of grain-boundary corrosion,entire grains may be dislodged due to complete deterioration of their boundaries.In any case ...