In the welding of certain high-strength steels and high-temperature alloys containing precipitation-strengthening elements (such as Al, Ti, and Nb), an unusual phenomenon sometimes occurs: no cracks are detected immediately after welding, but cracks develop later during heat treatment. This issu ...
In response to growing concerns over unfair trade practices and rising pressure on the domestic steel industry, South Korea’s Ministry of Trade, Industry and Energy has announced plans to tighten regulations against anti-dumping circumvention in steel and aluminum imports.
The government i ...
Haihao Group, a leading global supplier of pipe solutions, has received an important follow-up order from a long-term customer in Singapore. Haihao Group will provide the Singaporean customer with ASME B16.9 A234 WPB 90-degree elbows, including long radius (LR) and short radius (SR) configuratio ...
As the global energy landscape continues to evolve and natural gas demand rises, Argentina is fast-tracking its liquefied natural gas (LNG) export strategy. In a major development, Shell and Argentina’s state-owned oil and gas company YPF are jointly advancing a massive FLNG (Floating Liqu ...
When it comes to connecting pipes and components in a piping system, choosing the right connection method is critical for performance, safety, and maintenance. Threaded fittings and socket weld fittings are two of the most commonly used types, each with its own advantages and ideal applications. ...
Galvanized pipe fittings are widely used for their corrosion resistance, affordability, and availability. But what exactly does “galvanized” mean—and when should you use galvanized pipe instead of other options like carbon steel or stainless steel?
Galvanized pipes
1.What Is Galvaniz ...
As a trusted global manufacturer of industrial pipe fittings, Haihao Group recently completed a new batch of seamless P265GH fittings for a valued customer in the United Kingdom. This order included a variety of components such as 45° and 90° long radius elbows, concentric and eccentric reducers ...
At Haihao Group, we specialize in delivering high-quality ASME B36.10 ASTM A333 Gr.6 seamless pipes designed for optimal performance in low-temperature environments. Our recent collaboration with a client in Russia highlights our commitment to providing reliable solutions for demanding industria ...
April 15, 2025, Moscow – Day 2 of Russia’s premier oil and gas exhibition, NEFTEGAZ 2025, continues to electrify the Expocentre Moscow. Haihao Group, a global leader in industrial pipe fittings, flanges, and integrated pipeline solutions, is making waves alongside strategic partners Ganyea ...
At Haihao Group, we are dedicated to delivering high-quality pipe fittings and solutions that meet the most demanding industrial standards. Our recent focus on the ASME B16.11 ASTM A105 SWE x SE (NPT) 3000# Coupling has allowed us to provide exceptional products tailored to meet the specific nee ...
At Haihao Group, we are dedicated to delivering high-quality pipe fittings and solutions that meet the most demanding industrial standards. Our recent focus on the MSS SP-95 ASTM A815 UNS S32750 swage nipple has allowed us to provide exceptional products tailored to meet the specific needs of ou ...
As the global energy sector continues to evolve with new challenges and innovations, NEFTEGAZ 2025 is set to once again take center stage as Russia’s premier oil and gas industry exhibition. Taking place from April 14 to April 17, 2025, at the Expocentre Fairgrounds in Moscow, this flagshi ...
Haihao Group to closely follow developments in Southeast Asia’s largest energy infrastructure project
Haihao Group is closely monitoring the latest developments in the Kutei North Hub natural gas project in Indonesia, which recently entered the EPCI tender phase. The project, led by Italia ...
Haihao Group recently completed a comprehensive quality inspection for a batch of high-grade pipeline components ordered by a client in Singapore. These products, designed for high-pressure and low-temperature industrial applications, showcase Haihao Group’s technical expertise and strict ...
At Haihao Group, we are proud to announce the successful production of ASME B16.5 threaded reducing flanges for a client in Singapore. These flanges are manufactured from ASTM A105N carbon steel, ensuring high strength and durability for industrial applications.
Product Specifications
Flange Siz ...
Expanding Global Business: Haihao Group’s Growing Presence in Côte d’Ivoire
As a leading manufacturer of pipeline systems, flanges, fittings, and industrial fasteners, Haihao Group has established a strong presence in markets worldwide. In recent years, our products have been widely ...
Haihao Group recently completed the production of cold-extruded tees for an Iranian customer, strictly following the requirement for post-manufacturing heat treatment. This order highlights the importance of choosing the right forming process for tees, as different applications require different ...
Haihao Group recently manufactured cold-extruded tees for an Iranian customer, who required 100% magnetic particle testing (MT) to ensure product quality. This highlights the critical role of non-destructive testing (NDT) in the pipe fitting industry, ensuring that components meet strict safety ...
Floating Production Storage and Offloading (FPSO) units have become the backbone of offshore oil production due to their cost efficiency, flexibility, and technological maturity. As offshore development moves further into deepwater, FPSOs play a critical role in enabling production in remote and ...
With less than a month remaining, the highly anticipated NEFTEGAZ 2025 exhibition is just around the corner! This prominent event, taking place in Moscow, Russia from April 14th to 17th, 2025, continues to solidify its position as one of the largest and most influential trade shows in the global ...
Medium carbon steel, with a carbon content ranging from 0.25% to 0.60%, has poorer weldability than low carbon steel due to its higher carbon content. When the carbon content is around 0.30% and manganese levels are not high, it can still be welded with relative ease. However, as the carbon cont ...
At Haihao Group, we deliver ASME B16.9 standard 90 degree long radius reducing elbows engineered for unmatched performance in complex piping systems. Designed to connect pipes of different diameters while ensuring smooth directional changes, our reducing elbows combine precision dimensions, robu ...
Control valves play a critical role in regulating fluid flow in industrial pipelines. However, various issues such as blockage, leakage, oscillation, and instability can affect their performance. Below are common control valve problems and their solutions.
1.How to Handle Control Valve Blockage? ...
At Haihao Group, we are dedicated to delivering top-quality pipe fittings that meet the highest industry standards. Our ASME B16.11 ASTM A105 3000# 2″ couplings are designed to provide exceptional performance and reliability in various industrial applications.
Product Specifications
Stand ...
