In the realm of forging, Haihao Group stands out as a leading expert in the field of austenitic metal forging, leveraging its rich experience and advanced technologies. Today, we delve into Haihao Group’s outstanding practices in crack prevention and ...

In the production process of seamless steel pipes, heat treatment is a critical step to ensure product quality and performance. Haihao Group, with its outstanding expertise and technical strength, demonstrates unique heat treatment technology in the field ...

Manufacturing large forgings is a complex and critical process, and we categorize them into three types based on geometric characteristics: large shaft forgings, large disc forgings, and large plate forgings. These forgings include components such as rotor ...

Not long ago, Haihao Group was honored to join hands with PetroChina and successfully cooperated on an important overseas project, customizing a batch of eye-catching large forgings for Russian customers. In order to have in-depth communication and exchang ...

After successfully completing the production of some large forgings, Haihao Group partnered with a third-party inspection agency commissioned by PetroChina to conduct a comprehensive quality inspection. This inspection covered dimensional checks and non-de ...

In a recent collaboration with PetroChina, Haihao Group, renowned as a specialist in the pipeline system domain, is contributing its expertise to the manufacturing of large-scale forgings. Positioned at the forefront of forging technology, Haihao Group inv ...

In the world of piping, precision is paramount, and one crucial element that ensures the highest quality welds is the preparation of pipe end bevels. These bevels come in various forms, each tailored to specific welding requirements. Let’s delve into ...

At Haihao Group, we take immense pride in being a leading supplier of top-notch pipeline engineering products to customers worldwide. Recently, we had the privilege of fulfilling an order from one of our esteemed clients in India. They required a specific ...

Haihao Group, a leading name in the pipeline industry, proudly announces the signing of a supply contract with our esteemed Italian client. The agreement encompasses the delivery of a total of 110 units of ASME B16.11 equal tee fittings, each featuring a 1 ...

Seamless oil tubing is a critical component in the oil and gas industry, and at Haihao Group, we specialize in providing a comprehensive range of products for pipeline systems. As experts in the field, we offer seamless oil tubing in various specifications ...

Haihao Group is proud to announce the successful completion and impending delivery of a batch of european standard pipe fittings to our valued customer in Italy. We have recently finished the production of these top-quality fittings and are preparing to sh ...

In the realm of pressure vessel applications, SA-516 Gr. 70 stands as an epitome of excellence. Originating from the American standard and adhering to ASME specifications, this carbon steel plate is specially designed for use in medium to low-temperature p ...

Haihao Group is proud to announce the successful delivery of our top-quality products to our valued customers in Singapore. This shipment includes ASME B16.9 NACE MR0175 ASTM A234  tee and elbows that sets this delivery apart is not just the premium qualit ...

In mid-October, Haihao Group proudly received an order from a valued client in Indonesia. This order comprises a range of fittings manufactured from high-quality materials, including ASTM A420 WPL6, ASTM A694 F65, and ASTM A350-LF2. What sets these fitting ...

Haihao Group, a leading name in the pipeline systems industry, takes immense pride in delivering exceptional solutions to clients worldwide. We are thrilled to announce the successful delivery of a special product to our valued client in Indonesia. This pr ...

We are thrilled to announce the successful delivery of our premium 6-meter long SMLS bends with an outer diameter (OD) of 508mm and a thickness of 25.4mm to our valued customer in Singapore. At Haihao Group, we take pride in providing high-quality pipe fit ...

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 serving our global clientele with premium piping solutions. We are delighted to share the news of a recent order from our esteemed Pakistani client who has chosen to enhance their projects with our top-of-the-line ...

When it comes to steel pipes, understanding their hardness is essential for various applications. Steel pipe hardness is a key factor in determining their suitability for specific uses. There are several methods to assess the hardness of steel pipes, each ...

In the intricate network of maritime pipelines, the reliable transport of various fluids is crucial to ensure the seamless operation of marine machinery, guaranteeing the safety of every voyage. A ship is a complex amalgamation of diverse pipelines, each s ...