Bend testing evaluates the mechanical performance of materials under bending loads. It involves placing a specimen of defined shape and size on a bending device, bending it to a specified angle around a predetermined radius, and then examining its deformat ...

We are pleased to introduce to you a material analysis method for pressure pipes – instrumental analysis. This is an advanced analysis method based on the physical or physicochemical properties of substances. It obtains analysis results by measuring ...

Haihao Group is pleased to introduce our wide range of stainless steel fittings, tailored to meet different standards, providing exceptional corrosion resistance and mechanical performance. Our products are meticulously crafted to ensure durability and rel ...

As an expert in the field of pipeline systems, HaiHao Group plays an increasingly vital role in the construction of international large-scale vessel pipeline systems. We are proud to announce that our pipeline system products are being widely applied in th ...

As a leading expert in the field of pipeline systems, Haihao Group prides itself on mastering various pipeline surface coating technologies to ensure the highest standards of protection and durability. One such innovative solution in our arsenal is the epo ...

Haihao Group takes pride in its ability to deliver a wide range of flange solutions tailored to the diverse needs of our customers. Recently, a domestic shipyard placed an order for a batch of blind flanges, encompassing various specifications and standard ...

Haihao Group is proud to announce the successful fulfillment of a large order from a well-known domestic shipyard, which marks another milestone in our pursuit of excellence in the field of piping systems. This comprehensive order covers a wide range of pr ...

In the realm of pipeline integrity, NACE MR0175 stands as a critical standard for ensuring the durability and safety of pipeline systems in environments prone to hydrogen sulfide stress cracking (HSSC). Understanding this standard and the principles behind ...

Electrical spark testing is a crucial method utilized for inspecting the quality of anti-corrosion coatings on metal substrates, particularly in the context of metal pipelines. This sophisticated technique is primarily employed to detect defects such as pi ...

In the shipping industry, reliability and quality assurance are of paramount importance. At Haihao Group, we understand the importance of meeting strict standards, so we are proud to introduce our RINA 3.2 marine service tested pipe fittings. RINA (Registr ...

Haihao Group proudly announces the successful dispatch of a substantial order to our esteemed client in the United Kingdom. This shipment comprises a comprehensive range of pipe fittings meticulously crafted to meet industry standards and customer specific ...

In the dynamic landscape of international commerce, delivering quality products on time and in pristine condition is paramount. Haihao Group, renowned for its commitment to excellence, is once again stepping up to ensure a seamless pipeline products delive ...

In any industrial application, the selection of non-destructive testing (NDT) methods plays a crucial role in ensuring safety, reliability, and efficiency. Here are the key principles to consider when choosing NDT methods: Understanding Method Capabilities ...

In the realm of steel materials, precision and adherence to standards are paramount. When it comes to the specific requirements for ASTM A350 LF2 CL.1, our commitment to excellence shines through. Let’s delve into the precise demands of our esteemed ...

Flange gaskets play a critical role in ensuring leak-free and safe connections in industrial piping systems. However, achieving effective sealing involves a delicate interplay of various factors. Let’s delve into the nuanced factors that influence fl ...

Flange nuts are a type of nut with a wide flange on one end, serving as an integrated washer. Made of hardened steel and zinc-coated, flange nuts find applications in various settings, depending on the purchased style. They typically feature a hexagonal sh ...

As an expert in the field of pipeline systems, Haihao Group has always put quality first and provides customers with high-quality products and services. Recently, a British customer requested magnetic particle testing when ordering EN 10253-2 P265GH tee pr ...

Haihao Group has always been committed to providing customers with high-quality pipeline system products. We are well aware of the importance of raw material market conditions for customers’ purchasing decisions. Therefore, we share weekly changes in ...

In the intricate world of piping systems, efficiency, and precision are paramount. At Haihao Group, we pride ourselves on delivering top-notch solutions that meet the exacting needs of our clients. Our latest offering, the ASME B16.9 ASTM A815M concentric ...

At Haihao Group, we take pride in our commitment to meeting the specific material requirements of our clients, ensuring the highest quality standards are met for every project. Recently, we had the privilege of working with a valued client from Singapore, ...