Zirconium (Zr) is a relatively rare element in steel production, but its addition can significantly enhance the properties of steel in specific applications. Zirconium primarily acts as a grain refiner in steel, where it forms stable carbides, nitrides, or oxides that inhibit grain growth, there ...
Titanium (Ti) plays a critical role in improving the properties of steel, primarily through the formation of stable compounds such as titanium carbide (TiC) and titanium nitride (TiN). These compounds contribute to grain refinement, which enhances the strength, hardness, and toughness of steel. ...
Vanadium (V) is a crucial alloying element in steel, known for its significant strengthening effects. It enhances steel’s mechanical properties by refining the grain structure and forming carbides or nitrides. These processes increase the strength and hardness of steel, making vanadium an ...
Potassium (K) and Sodium (Na) are trace elements in steel, typically present in very small quantities. While their influence is not as prominent as that of major alloying elements like chromium (Cr) or nickel (Ni), these elements can still impact steel properties under certain conditions. Unders ...
Sulfur (S) is an element that significantly affects the performance and quality of steel, often in detrimental ways. Understanding its influence is essential for controlling steel properties, especially in applications where mechanical performance and weldability are critical.
RINA tested EN 102 ...
Boron (B) is a potent alloying element that, even in trace amounts, can significantly enhance the hardenability of steel. By increasing the hardenability, boron enables the formation of a more uniform hardened layer during quenching, thereby improving the strength and hardness of the steel. The ...
Manganese (Mn) is a crucial alloying element in steel, playing a vital role in enhancing its strength, hardness, and wear resistance. It also significantly improves steel’s hardenability, which is essential for heat treatment processes, and assists in the deoxidation and desulfurization of steel ...
Haihao Group is pleased to announce a partnership with a well-known customer in Bangladesh who has placed a major order for pipeline products. This collaboration highlights Haihao Group’s commitment to providing quality solutions to meet the specific needs of its customers.
Our Bangladeshi custo ...
In the intricate web of pipeline systems, every component plays a crucial role in ensuring efficiency, durability, and safety. At Haihao Group, we understand the significance of each bolt, nut, flange, or pipe fittings in the grand scheme of pipeline operations. It is with great pride that we in ...
Haihao Group has been deeply involved in the field of pipeline systems for many years, and we fully understand the impact of high-quality raw materials on product performance. Stainless steel is prized for its corrosion resistance and is widely used in piping system products, but what exactly ma ...
In the complex world of fluid dynamics, pressure pipes play a key role in transporting gases and liquids under controlled pressure conditions. However, not every pipeline can be called a pressure pipeline. Two key criteria define this professional category:
HAIHAO GROUP
Pressure >= 0.1 MPa (g ...
As a supplier with years of experience in the pipeline system sector, Haihao Group has been closely monitoring changes in the raw material market and sharing insights with clients to deliver more competitive pipeline system products. This article provides you with an overview of the changes in t ...
On January 5, the 52-inch submarine pipeline towing head of the Ravilawi project in Indonesia accurately arrived at the landing site, marking the successful completion of the world’s largest diameter long-distance offshore crude oil pipeline towing operation. The Rawalawa project is not on ...
In the ever-evolving landscape of pipeline solutions, Haihao Group stands as a stalwart expert in the field. Last year, our commitment to providing top-notch products and comprehensive services was evident in a significant order from a valued client in Singapore.
Haihao Group
The extensive order ...
Haihao Group, recognized as a strategic reserve supplier for both PetroChina (China National Petroleum Corporation) and CNOOC (China National Offshore Oil Corporation), extends hearty congratulations to Offshore Oil Engineering Co., Ltd. (COOEC) on the recent acquisition of a new patent for FPSO ...
As an expert in the field of pipeline systems, Haihao Group understands the importance and potential risks of ship pipeline systems very well. The recent leakage accident of Egina FPSO in Nigeria reminds us once again that we must always pay attention to the safety hazards of the pipeline system ...
As a professional supplier of supporting products for pipeline systems, Haihao Group has always been proud of providing excellent services. We dare to respond to customer needs and demonstrate our determination to solve problems and our strong supply capabilities.
Not long ago, we received a req ...
In recent years, Haihao Group has been actively involved in the construction of various ship pipeline systems worldwide. With our high-quality pipe fittings products accredited by prestigious organizations such as ABS, DNV, and RINA, we have proudly established ourselves as a trusted provider of ...
We are thrilled to announce our latest collaboration with a prestigious UAE customer for an exciting local oil exploration project. At Haihao Group, we take immense pride in being selected as their trusted partner, providing top-notch piping solutions to fuel their ambitions.
A Comprehensive Sup ...
In recent years, with the improvement of Haihao’s popularity, Haihao’s flanges, steel pipes and other products are increasingly used in various extreme environments. Such as submarine pipelines, desert pipelines, wind power projects, nuclear power projects, etc. Now let’s intro ...
As an enterprise specializing in the R&D, production and sales of pipeline engineering supporting products, Haihao Group pays close attention to domestic and international pipeline engineering projects. Today, Haihao shares with you the remarkable African oil projects in 2013.
Angola Begonia ...
