Every morning, the warehouse of Haihao Group is busy. Almost every day, there are trucks coming to the warehouse to deliver goods. Today, a batch of elbows ordered by Shandong customers have been packed and will be loaded and shipped soon. This batch of products will be transported to the custom ...
On the afternoon of October 27, a customer from Shandong made an appointment to inspect the goods at the factory of Haihao Group. Haihao welcomed the inspection and gave full cooperation. This batch of goods was contracted by the customer in August. After more than a month of production, all pro ...
On October 19, a batch of equal tees ordered by Russian customers in Haihao Group completed production, and Haihao’s quality inspectors conducted ultrasonic testing on these tees. After the inspection, the inspection report will be sent to the customer along with the goods. Ultrasonic test ...
With the development of the Belt and Road policy, Haihao Group has ushered in a period of rapid development in recent years. At present, Haihao’s products have been exported to Europe, America, East Asia, Africa and other regions. After decades of market tests, our products have been well ...
Seamless steel pipe is a steel pipe formed by piercing the whole round steel, and there is no weld on the surface, which is called seamless steel pipe. According to the production method, seamless steel pipes can be divided into hot rolled seamless steel pipes, cold rolled seamless steel pipes, ...
After the Middle Autumn Holiday, we gave the reception to our Kuwait client TPI inspector on 14th of September. For this Kuwait client, we have contacted for several months. The first time we communicated it’s about the agent issue, they express they willing to be our agent. So we keep the ...
New energy has received great attention in the world. At present, the planning and construction of many new energy bases in China are accelerating, and the third batch of large-scale wind and power projects are being planned. With the improvement of a series of policies, new energy will usher in ...
As an important participant in the Belt and Road, Brazil has the largest economic volume and market scale in Latin America. It has deep-water oil and gas resources with large reserves and good quality. In May of this year, the first phase of MERO, a deep-water oil field cooperated by China and B ...
This week, we received an inquiry from a Myanmar customer about carbon steel elbow and large size carbon steel bend. The customer requires fittings shall have carbon equivalent not exceeding 0.45%, Marking for pipe specifications ,heat number , bending angle, total lenght and heat shrinkable co ...
With the development of the the Belt and Road policy, China has continuously cooperated with relevant countries and created more opportunities for domestic enterprises on the basis of helping other countries. Niger oil field surface phase II and Nigeria Benin pipeline project are integrated upst ...
On August 24, one of HAIHAO’S business personnel received an inquiry from Saudi Arabia. He wanted to know about pipe fittings, flanges, elbows and other products. These components are used in an oil field. Because the project scale is relatively large, each product needs a variety of diffe ...
What is the worst application environment for pipe fittings?We all know that the working environment of pipe fittings on land is relatively stable,while the environment on the seabed is more complicated than that on land.However there is another environment worse than that on the seabed,which is ...
During the construction of a nuclear power plant,there are some basic requirements that need to be followed.We have gained a better understanding of these requirements through participating in Hainan Changjiang nuclear power phase II project.Let’s take a look at some of them.
Pipeline prod ...
In 1957,the world’s first commercial nuclear power plant,the shipping port nuclear power station in the United States,was officially put into use,and mankind officially entered the era of nuclear energy.In the development process of nearly 70 years since then,the development of nuclear power has ...
Although the environment of steel market was not good in August,HAIHAO Group continued to provide good service and products to customers.On the 15th,we arranged shipments for customers in the Netherlands,Britain,Russia,Singapore and Saudi Arabia.Why HAI HAO can maintain its vitality in the adver ...
The customer who asked for my inquiry because of the quality problems of the supplier before has confirmed the order this week. All details have been confirmed. The customer has sent me the Purchase Order, and WE are waiting for the customer to make payment and arrange production.
In March, a c ...
As previously introduced, due to the supplier’s quality problems, the Brazilian customer purchased the order from our company for the first time. As the customer has strict requirements on delivery time, we have been producing for the customer as soon as possible under the premise of quali ...
There is a customer who has quoted many prices before, but has never placed an order to our company. The reason may be that the customer has a fixed supplier, and each quotation is to compare prices. For me, although customers do not place orders for us, I always give customers quotations in o ...
We received an inquiry from a UAE customer today.The inquiry content is about small size blind flange, and the customer requires galvanized flange surface. Today, let’s learn the types and differences of galvanized.
Galvanized refers to the surface of metal, alloy or other materials coated ...
Tensile test, generally refers to the tensile test, tensile test can determine a series of material strength indicators and plastic indicators. Strength usually refers to the ability of a material to resist elastic deformation, plastic deformation and fracture under the action of external forces ...
Flattening Test– The flattening test as commonly made on specimens cut from tubular products is conducted by subjecting rings from the tube or pipe to a prescribed degree of flattening between parallel plates (As shown).
Flattening test drawing
The severity of the flattening test is measur ...
Charpy impact test is used to measure the notch resistance sensitivity (toughness) of metal materials. The metal sample with a certain shape and size is prepared, so that it has a U-shaped notch or a V-shaped notch, in the charpy impact test machine in a simply supported beam state, with the pen ...
After filling in the application form and submitting the information required for certification to the classification society, then the factory inspection, then the preparation of the type test. The type test is divided into hydrostatic test, low temperature impact test, flattening test, tensile ...
