If shown, the steel pipes in the picture are a batch of pipeline steel pipe orders from old customers in Belarus that were completed a few days ago. This batch of steel pipe is used in the local project and has certain requirements for the product. Since w ...

In December, an old Brazilian customer ordered a batch of elbows that were different from the regular elbows in each order.The products were ASTM A234 WPB 90 degree long radius reducing elbows according to ASME B16.9 standard. This batch of pipe fittings h ...

Recently, our factory received a batch of orders for carbon steel 2D and 3D pipe bends, and produced a batch of 400NB thick elbows with high quality. At the request of the customer, the exterior is painted with anti-rust oil, the pallet is packaged, and re ...

Recently, the carbon steel, alloy steel and stainless steel flange,pipe fittings produced by Hebei Haihao Group have obtained the certification of DNV and the relevant certificates approved and issued by the headquarters of DNV. This is another classificat ...

Last week we received an inquiry from a customer about plastic steel lined pipes. The details of the inquiry are: 2 “, 3 ” and 4″ with wall thickness of SCH40 and length of 6 meters. However, in the follow-up communication process, we lea ...

Yesterday we received an inquiry from a customer in Singapore for insulating joint s. Mainly including 1 “, 2 “, 6 “, 8 ” insulating joint s. But the customer did not provide the specific Material and pressure, but only the material ...

Pipeline products will be affected by the environment and media corrosion will cause serious consequences, pipe coating, lining and cladding are three commonly used pipeline anticorrosion methods, what is the difference between them? Pipe Coating The coati ...

A pipeline coating is a cost effective and viable solution to maintain pipelines’ integrity. Coatings are typically applied to counter the negative effects of corrosion on pipeline operation, capacity and costs. Pipeline coating is one of the most re ...

What is A234 WPB? A234 WPB is an American standard pipe fitting material. Used for carbon steel elbow, tee, reducing pipe, pipe cap, elbow and other products. How is A234 WPB made up? The chemical composition of A234WPB is C≤0.03Mn= 0.29-1.06P ≤ 0.05s ≤0 ...

The prevention of cold cracks is mainly caused by reducing the diffusion hydrogen content, improving the structure, and reducing the welding stress. Specific measures are: 1.Preheating before welding and slow cooling after welding. This not only improves t ...

Perhaps you have encountered this situation before: after a long wait, a pile of goods with broken packaging have been sent to you across the sea. You try to persuade yourself to accept these products, but after inspection, there are many unqualified produ ...

A182 F51 is a duplex stainless steel made of 21% chromium,2.5% molybdenum and 4.5% nickel-nitrogen alloy. It has high strength, good impact toughness and good integral and local stress corrosion resistance. The yield strength of duplex stainless steel is t ...

After more than one month of production, the flange production of Canadian customers was completed.After inspection, the size meets the requirements, and they are ready to be sent to Canada. One day about two months ago, a Canadian customer sent me an inqu ...

The hot dip galvanized pipe fittings for this batch of order include galvanized elbow, galvanized reducer, galvanized tee, galvanized pipe cap, etc. At the request of the customer in Indonesia, the pipe fittings were hot dip galvanized. The main purpose of ...

Recently we finished the order of customized forging products.It includes pipe and reducers with material ASTM A694 F65. ASTM A694 F65 FORGED PIPE ASTM A694 F65 FORGED PIPE Forging is a processing method that uses forging machinery to hammer or press the m ...

ANSI B36.19 contain stainless steel seamless steel pipes and welded steel pipes,ANSI B36.10 contain seamless steel pipes and welded steel pipes. The steel pipe data chart below can be used to find pipe sizes, diameters, wall thickness, working pressures an ...

Technological process: (1) Use grinding wheel cutting machine to cut the material, turn the end face and fillet R5. (2) The furnace temperature is (450 ± 10) ℃ and the holding time is 136min. (3) Die forging and die forging equipment is 6300kN friction pre ...

Let’s learn about the quality problems and solutions of forgings in quenching and cooling: Insufficient hardness and enough hardening depth: quenching cooling rate is low is forging quenching hardness is insufficient, the cause of the uneven hardness ...

According to different types of steel and process requirements, the following heat treatment methods are often used for forgings: annealing, normalizing, tempering, quenching and low temperature tempering, quenching and aging, etc.Let’s take a look a ...

About a month ago, I received an inquiry from a customer in Singapore, the main product is carbon steel flanges and pipe fittings. The products in the inquiry are as follows: Dimensions inspection of blind flange (1)WN flange RF, size: 1.1/2 “~18R ...