This month, Haihao Group successfully completed the supply of a batch of high-pressure flanges and seamless tubing for a valued customer in Poland. The order includes EN 1092-1 Type 11 weld neck flanges (Types E and F facing) and a Duplex stainless steel seamless tube, all manufactured from 1.44 ...
In industrial piping and pressure vessel applications, leak-proof sealing is critical to safety and performance. One of the most widely used sealing solutions in high-pressure and high-temperature environments is the spiral wound gasket (SWG). At Haihao Group, we recently completed the productio ...
At Haihao Group, we recently completed the production of a large batch of ASTM A234 WPB seamless carbon steel elbows for an Italian customer engaged in petrochemical pipeline installation. The scope of this project included both long radius (LR) and short radius (SR) elbows in multiple sizes, wa ...
At Haihao Group, delivering precisely engineered piping components that align with diverse global standards is central to every order we handle. Recently, we finalized the production of a specialized shipment of GOST standard tees and concentric reducers, manufactured to strict specifications fo ...
As one of China’s leading manufacturers of piping components, Haihao Group recently completed the production of a full range of stainless steel butt-weld fittings and weld neck (WN) flanges, manufactured according to ASME B16.9 and ASME B16.5 standards. The order was customized for a domes ...
Last week, we wrapped up the production and shipment of a batch of 6-inch STD 90° long radius elbows for a Russian client upgrading part of their transmission pipeline. The fittings were manufactured according to ASME B16.9 and made from ASTM A234 WPB carbon steel, as per the customer’s sp ...
In plumbing and industrial piping, getting connections just right is crucial. You might often hear terms like “bushing” and “adapter” used, sometimes interchangeably, which can be a bit confusing. While both help join components, understanding their core function is key t ...
Piping systems are the lifelines of modern infrastructure, moving everything from water and gas to chemicals and oil. But whether it’s a temporary construction phase, a permanent termination, or a point for future expansion, every pipe run eventually needs to be securely closed off. Choosi ...
In the vast world of piping systems, precision in component selection is paramount for operational integrity and safety. Among the most fundamental yet frequently confused fittings are pipe plugs and pipe caps. While both serve the crucial purpose of sealing pipe ends or openings, their design, ...
In industrial and construction applications, galvanized steel and stainless steel are widely used for their respective corrosion resistance properties and strength. However, a frequently asked and critical question arises: Can galvanized and stainless steel fittings be safely mixed within the sa ...
When a Malaysian client needed robust pipeline fasteners, Haihao Group delivered customized solutions that matched exacting standards. The order included high-strength bolts (HSFG), nuts, and washers designed for durability in demanding environments. Here’s how we ensured every component m ...
Can Two 45 Degree Elbows Replace a 90 Degree Elbow in Piping Systems?
Yes – in theory two 45 degree elbows can be used together to achieve a 90 degree change of direction. And in some cases it can have certain advantages
When two 45-degree elbows are installed in series, possibly with a sh ...
Haihao Group is a comprehensive industrial and trading service provider specializing in comprehensive pipeline solutions. Recently, we delivered ASME B16.9 ASTM A403 WP 316/316L pipe fittings to a Singaporean customer. The products purchased by the customer include:
Concentric reducer (16 “ ...
A major new FPSO (Floating Production Storage and Offloading) project has entered the spotlight in the Malaysian offshore energy market—the Sepat FPSO lease and operation contract. While the project was expected to attract enthusiastic bids from local FPSO contractors, industry insiders report t ...
When it comes to corrosion protection for steel, galvanizing is one of the most effective and widely used methods. However, not all galvanizing processes are the same. The two most common types are hot-dip galvanizing and cold galvanizing (also known as electro-galvanizing). While both aim to pr ...
As a global leader in integrated pipeline solutions, Haihao Group has successfully completed delivery of ASME B16.9 A815 UNS S31803 WP-S eccentric reducers to a Singapore client, marking another milestone in serving Southeast Asia’s energy infrastructure sector. This batch of 4″ X 2& ...
Energy Transition Driven by Environmental Regulations
Since 2020, the International Maritime Organization (IMO) has enforced the “IMO 2020” sulfur cap regulation, reducing the global sulfur content limit in marine fuels from 3.5% to 0.5%. In Emission Control Areas (ECAs), the limit i ...
When it comes to ensuring secure, long-lasting connections in demanding environments, high-quality stainless steel fasteners are essential. Haihao Group recently supplied a comprehensive batch of A4-80 stainless steel fasteners for a domestic customer, covering a wide range of bolt, nut, and was ...
At Haihao Group, we closely monitor the latest developments in the global offshore energy sector and are excited to share important updates on the Gato do Mato FPSO project led by Shell Brazil. The project has entered a critical phase, with deep negotiations underway between MODEC and leading Ch ...
In today’s intensely competitive international market, pipe exporting companies must lay a solid foundation to achieve sustainable global success. Beyond offering high-quality products, they must cultivate a set of core competencies that position them as trustworthy, professional, and forw ...
Pressure pipelines play a critical role in continuous industrial production processes, often operating under extreme conditions such as high temperatures, high pressures, low temperatures, or high vacuum environments. The transported media are frequently flammable, explosive, corrosive, or highl ...
As an expert in pipeline systems, Haihao Group is committed to staying at the forefront of global pipeline industry developments, especially those related to emerging energy sectors. We are pleased to share the latest significant news with our clients:
A Joint Development Agreement (JDA) has bee ...
On April 28, Magda Chambriard, CEO of Petrobras (Brazil’s state-controlled oil company), held high-level meetings with executives from leading Chinese shipyards. These discussions marked a new phase in Brazil-China cooperation in the FPSO (Floating Production, Storage, and Offloading) sect ...
Ferrite content in stainless steel, particularly δ-ferrite, plays a critical role in determining the material’s mechanical properties, corrosion resistance, and weldability. Accurate measurement of ferrite content is essential, especially for castings, welds, and components used in demandi ...
