Whether employing macroscopic structure examination, microscopic analysis, or performance and composition determination, these methods are inherently destructive. For certain critical and large-scale forgings, destructive methods fall short of meeting the ...

In a recent collaboration between Haihao Group and PetroChina, extensive material testing was conducted on large forgings to guarantee the highest quality standards. Haihao Group prepared raw material test blocks according to customer needs and conducted c ...

In yet another testament to its commitment to excellence, Haihao Group proudly announces the successful dispatch of a shipment to our esteemed client in the United Arab Emirates. This delivery comprises a range of top-tier products designed to meet the hig ...

At the beginning of this year, a distinguished client from Turkey placed a substantial order with Haihao Group, encompassing a variety of pipe fittings such as steel pipes, elbows, tees, concentric and eccentric reducers, and flange supports. The total ord ...

Haihao Group is delighted to announce the initiation of production for a recently received order from our esteemed client in Indonesia. This comprehensive order includes a variety of top-quality products tailored to meet the specific needs of our client ...

The nuclear industry stands as one of the largest consumers of stainless steel fittings, and its demands are arguably the most rigorous compared to other sectors. This stringency is primarily due to the higher risk factors associated with nuclear activitie ...

In a testament to our commitment to excellence and global partnerships, Haihao Group proudly announces a new order from our esteemed client in Russia. The comprehensive order encompasses a variety of piping components, including elbows, tees, concentric an ...

Driven by the belt and road initiative, Haihao Group is proud to introduce its pipeline system products to more and more countries. Recently we successfully delivered a batch of high-quality products to Bosnia and Herzegovina, demonstrating our commitment ...

S355ML steel is a type of low-alloy high-strength structural steel. Known for its excellent weldability, toughness, and cold deformation properties, S355ML steel finds applications in various structural uses such as building structures, bridges, lifting eq ...

Cold-rolled steel coils undergo a series of processing steps to transform hot-rolled coils or steel sheets into cold-processed steel plates with specific tolerances, flatness, and surface quality. This process imparts unique physical properties to cold-rol ...

In recent years, weldolet, a widely-used branch connection fitting, has gained popularity in the international market. It has emerged as a versatile alternative to traditional branch connection methods, such as eccentric reducers, reinforcing plates, or re ...

With the continuous development of the Chinese economy and the emphasis on the energy industry, long-distance oil and gas pipelines have become crucial for ensuring energy security. In the construction of anti-corrosion measures for oil and gas pipelines, ...

Haihao Group, a leading manufacturer specializing in pipe products, introduces cutting-edge surface quenching methods for thick-wall steel pipes. These advanced techniques ensure superior hardness and durability, meeting the stringent demands of various in ...

At Haihao Group, we’re thrilled to announce that our valued customer, Shunzhou Shipyard, has placed an additional order with us. This order encompasses a range of high-quality products, specifically ASME B16.9 ASTM A234 Gr WPB tees and reducers, slat ...

At Haihao Group, we take immense pride in our long-standing partnerships with clients worldwide. Our latest collaboration with an esteemed client from India exemplifies our dedication to delivering precision-engineered solutions for their ongoing oil proje ...

In the world of high-pressure and high-temperature environments, reliability and strength are paramount. This is where ASTM A694 F65 steps in, offering a high-strength low-alloy steel solution that’s perfectly suited for such challenging conditions. ...

Coating thickness plays a crucial role in ensuring the durability and longevity of pipelines. It serves as a protective layer, guarding against corrosion, abrasion, and other potential damage. Understanding the importance of precise coating thickness, our ...

In the week spanning from October 23rd to October 27th, domestic steel prices in China exhibited upward movement. Notably, both the long steel price index and flat steel price index showed moderate increases. Looking at the regional perspective, CSPI’ ...

When it comes to manufacturing large-diameter elbows, precision is of the utmost importance. Many factors can influence the accuracy of material feeding during the production process, and it’s essential to consider these factors for optimal results. ...

In the world of steel pipes, adherence to quality standards is paramount. The API 5L steel pipe standard is a vital guideline, and it classifies steel pipes into two distinct quality levels known as PSL1 and PSL2, with PSL representing Product Specificatio ...