Quality Stainless Steel Seamless Pipes & Stainless Steel Butt Welded Pipe Fittings Factory

Stainless steel flanges are indispensable connecting components in industrial pipeline systems, playing a crucial role in joining pipes, valves, pumps, and other equipment to ensure tight sealing, stable operation, and convenient maintenance of the entire pipeline. With excellent corrosion resistance, high-temperature resistance, and mechanical strength, they are widely applied in various key industries that have strict requirements for pipeline performance. In the petroleum and petrochemical industry, our stainless steel flanges are used to connect pipelines for oil and gas exploration, transportation, and refining, withstanding harsh working conditions such as high pressure, high temperature, and corrosive media to ensure the safety and efficiency of energy transmission. In the water treatment and environmental protection industry, they are applied in water purification, sewage treatment, and desalination systems, effectively resisting the corrosion of chemical agents and impurities in water, and ensuring the stability of water treatment processes. For the food processing and pharmaceutical industries, our stainless steel flanges meet food-grade and pharmaceutical-grade standards, with a smooth surface that avoids medium accumulation and bacterial growth, making them suitable for pipelines transporting edible oils, beverages, drugs, and other clean media. In the marine and shipbuilding industry, they resist seawater corrosion and harsh marine environments, serving as core components for marine pipeline systems. Additionally, they are widely used in power plants, chemical equipment, and industrial manufacturing, providing reliable connection solutions for various complex working scenarios. As a professional stainless steel flange manufacturer serving global clients, we have obvious advantages that make us stand out in the international market. Firstly, we adhere to strict international standards such as ANSI, DIN, EN, JIS, and GB in production, ensuring that every flange meets the quality requirements of global customers and has good compatibility with international pipeline systems. Secondly, we select high-quality stainless steel raw materials and adopt precision machining technology, combined with strict quality inspection and testing procedures, to ensure the dimensional accuracy, welding performance, and sealing performance of our products, making them durable and reliable. Moreover, we provide customized solutions according to the specific needs of customers, including special specifications, materials, surface treatments, and flange types, to perfectly match the unique requirements of different projects. Our professional technical team has rich experience in flange design and application, providing full-process technical support from product selection to installation guidance. Meanwhile, our efficient after-sales service team responds quickly to customer needs, solving various problems encountered in product use and ensuring a worry-free purchasing experience for global clients.

As a professional manufacturer of stainless steel pipe fittings, we are committed to providing global customers with high-quality, reliable and diversified flange solutions. Stainless steel flanges are core components in pipeline systems, widely used in petroleum, chemical, water treatment, food processing, pharmaceutical, marine and other industries due to their excellent corrosion resistance, high temperature resistance and mechanical strength. Today, we will introduce the main types of stainless steel flanges we supply, helping you choose the most suitable product for your project needs. 1. Slip-On Flange (SO Flange) The slip-on flange is one of the most commonly used flange types in industrial applications, favored for its simple structure, easy installation and cost-effectiveness. It features a slightly larger inner diameter than the pipe outer diameter, allowing the pipe to slip through the flange hole, and then be fixed by fillet welding on both the inner and outer sides of the flange. This type of flange is suitable for low to medium pressure pipeline systems (usually PN1.0-PN4.0, Class 150-Class 300) and is compatible with various stainless steel grades such as 304, 316, 316L. Its advantages include convenient alignment during installation, low welding difficulty, and easy maintenance. It is widely used in water supply and drainage, air conditioning and ventilation, and general chemical pipelines. 2. Weld Neck Flange (WN Flange) The weld neck flange is a high-performance flange designed for high-pressure, high-temperature and harsh working conditions. It is characterized by a long neck that is seamlessly connected to the pipe through butt welding, which effectively distributes the stress at the welding joint and improves the overall pressure-bearing capacity of the pipeline system. Compared with other flange types, the weld neck flange has better structural integrity, higher strength and better sealing performance. It is widely used in high-pressure pipeline systems (PN6.3-PN16.0, Class 600-Class 2500), such as oil and gas transmission, petrochemical reaction equipment, and power plant pipelines. Our weld neck flanges are precision machined to ensure the consistency of the neck thickness and pipe wall, ensuring safe and stable operation even under extreme conditions. 3. Socket Weld Flange (SW Flange) The socket weld flange is specially designed for small-diameter pipelines (usually DN10-DN50) and low to medium pressure applications. It has a socket-shaped inner hole, where the pipe is inserted into the socket, and then fixed by fillet welding at the flange end. This design avoids welding seams inside the pipeline, reducing the risk of medium accumulation and corrosion, and ensuring the smooth flow of the medium. The socket weld flange is easy to install and has good sealing performance, making it suitable for pipelines transporting clean media such as water, steam, and high-purity chemicals. It is widely used in pharmaceutical, food processing, and electronic industry pipeline systems, where cleanliness and corrosion resistance are strictly required. 4. Threaded Flange (TH Flange) The threaded flange is a non-welded flange type, which is connected to the pipe through internal threads (or external threads) matching the pipe threads. It does not require welding during installation, which is especially suitable for occasions where welding is not allowed, such as flammable, explosive or high-precision pipeline systems. This type of flange is easy to disassemble and maintain, and can be reused, which saves maintenance costs for customers. However, it should be noted that the threaded flange is only suitable for low-pressure pipeline systems (usually PN≤1.6, Class 150), as the sealing performance may be affected under high pressure. It is commonly used in gas pipelines, small-diameter water pipelines and temporary pipeline systems. 5. Blind Flange (BL Flange) The blind flange is a flange with no through hole, mainly used to seal the end of the pipeline, isolate the medium in the pipeline, and facilitate the inspection, maintenance and replacement of pipeline equipment. It is also known as a blank flange, and its structure is simple, usually consisting of a flange plate and bolt holes. Our blind flanges are available in various specifications to match different flange standards and pipe diameters. They are made of high-quality stainless steel, ensuring good corrosion resistance and pressure-bearing capacity. Blind flanges are widely used in all types of pipeline systems, especially in occasions where the pipeline needs to be temporarily closed or periodically inspected, such as chemical reaction tanks, storage tanks and pump outlets. 6. Lap Joint Flange (LJ Flange) The lap joint flange, also known as the loose flange, consists of a flange ring and a lap joint stub end. The flange ring can slide freely on the lap joint stub end, which is convenient for alignment during installation and disassembly. This type of flange is suitable for low-pressure, low-temperature pipeline systems and occasions where frequent disassembly is required. The lap joint flange has the advantages of simple structure, low cost and easy installation, and is compatible with various pipe materials. It is widely used in water treatment, environmental protection, and general industrial pipeline systems. The lap joint stub end is usually butt-welded with the pipe, while the flange ring is connected with bolts, which reduces the welding difficulty and improves the installation efficiency. Our Advantages in Stainless Steel Flanges All our stainless steel flanges are manufactured in strict accordance with international standards such as ANSI, DIN, EN, JIS and GB, ensuring that the products meet the quality requirements of global customers. We use high-quality stainless steel raw materials, and through precision machining, strict quality inspection and testing, we guarantee the dimensional accuracy, welding performance and sealing performance of each flange. In addition, we can provide customized flange solutions according to the specific needs of customers, including special specifications, materials and surface treatments. Our professional technical team and after-sales service team are committed to providing customers with full-process support, from product selection to installation guidance, to solve your worries. Whether you need slip-on flanges for general industrial pipelines, weld neck flanges for high-pressure systems, or customized flange products, we have the ability to meet your needs. Welcome to contact us for more information about stainless steel flanges and our products and services.

When it comes to stainless steel screwed pipe fittings, quality and availability are non-negotiable. Our company stands out as a leading supplier, thanks to our unwavering commitment to excellence and customer satisfaction. These fittings are designed for easy installation and maintenance, making them ideal for both new projects and retrofitting existing systems. With applications ranging from plumbing and HVAC to specialized industrial processes, our fittings offer versatility and reliability. What sets our stainless steel screwed pipe fittings apart is our focus on inventory excellence. We understand that downtime can be costly, which is why we maintain a large and diverse inventory ready for immediate dispatch. Our fittings are sourced from reputable mills and produced using state-of-the-art machining techniques, ensuring tight tolerances and leak-proof connections. The threaded ends are precision-cut to prevent cross-threading and galling, while the polished surfaces resist contamination and buildup. Furthermore, our fittings are tested for pressure ratings, temperature tolerance, and corrosion resistance, adhering to globally recognized standards. We also offer customized solutions to meet unique project requirements. Whether you need specific sizes, special coatings, or bulk quantities, our team is equipped to provide tailored support. Our competitive pricing, coupled with reliable supply chains, makes us the preferred choice for engineers, contractors, and procurement managers worldwide. Invest in stainless steel screwed pipe fittings that guarantee performance and longevity. Contact us today to discuss your requirements or request a sample.

Stainless steel screwed pipe fittings are essential components in industrial and commercial piping systems, offering exceptional corrosion resistance, mechanical strength, and long-term reliability. These fittings are widely used in industries such as oil and gas, chemical processing, water treatment, and food and beverage, where hygiene and durability are paramount. Our company specializes in providing high-quality stainless steel screwed fittings, manufactured to meet international standards such as ASTM, ANSI, and DIN, ensuring compatibility and performance across diverse applications. One of the key advantages of our stainless steel screwed pipe fittings is their superior inventory quality. We maintain a comprehensive stock of fittings in various grades, including 304, 316, and 316L, to meet specific environmental and operational demands. Whether you need fittings for high-temperature applications, acidic environments, or marine settings, our products deliver consistent performance. Each fitting undergoes rigorous quality checks to ensure precise threading, smooth surfaces, and defect-free construction. This attention to detail minimizes the risk of leaks, pressure drops, and system failures, providing our clients with peace of mind and reduced maintenance costs. In addition to quality, we pride ourselves on our extensive inventory and quick delivery services. Our stocked items include elbows, tees, couplings, unions, and plugs in various sizes, from 1/8 inch to 4 inches. This allows us to meet urgent project demands without compromising on quality. By partnering with trusted manufacturers and employing advanced logistics solutions, we ensure that our customers receive their orders on time, every time. Choose our stainless steel screwed pipe fittings for unmatched durability, efficiency, and value. Explore our catalog today to find the perfect solution for your piping needs.

Specialty Stainless Steel Flanges for Complex System Design While standard flanges cover most needs, complex piping systems often require specialized components for maintenance, calibration, or unique operational demands. Sourcing these specialty flanges can be a challenge, leading to costly project delays. At [Your Company Name], we solve this problem by stocking a deep and diverse range of specialized stainless steel flanges. Our expertise lies in providing not only common types but also the hard-to-find components that keep sophisticated industrial processes running smoothly. Our Range of Specialty and Metric Flanges Our inventory is designed to support engineers and project managers working on advanced applications. We maintain a consistent stock of: Stainless Steel Lap Joint Flanges (LJ):​ Essential for systems requiring frequent disassembly or alignment adjustment. They rotate freely around the stub end, simplifying bolt hole alignment. Stainless Steel Threaded Flanges (THD):​ The perfect solution for systems that cannot be welded, such as those in explosive atmospheres or for connecting to threaded equipment. Stainless Steel Orifice Flanges:​ Used for measuring the flow rate of liquids or gases in a pipeline. Our orifice flanges are precision-machined to accommodate orifice plates and pressure tap connections. Spectacle Blinds & Spacers:​ Critical for positive isolation (blinding) of process systems to ensure safety during maintenance. Our stock includes custom-manufactured spectacle blinds in various stainless grades. Beyond Standard Grades: Advanced Material Selection For highly corrosive or extreme temperature environments, standard 304 and 316 may not suffice. Our quality commitment extends to stocking advanced alloys, including: 321 Stainless Steel:​ Stabilized with Titanium for superior resistance to intergranular corrosion following exposure to high temperatures. 317L Stainless Steel:​ Contains higher levels of Molybdenum and Chromium than 316L, offering exceptional resistance to corrosive chemicals, pitting, and crevice corrosion. Duplex and Super Duplex Stainless Steels:​ For the most demanding offshore, oil & gas, and chemical processing applications, we can source flanges with exceptional strength and chloride resistance. Quality That Meets the Most Stringent Specifications We understand that specialty applications demand even greater quality control. Our flanges are available in a range of pressure ratings (150# through 2500#) and face finishes (Raised Face, Ring-Type Joint, Flat Face). We ensure compliance with ASME, ASTM, ANSI, API, and DIN standards, and provide full certification packages for quality assurance and audit compliance. Your Partner for Complex Flanging Solutions When your project requires more than a standard component, you need a supplier with the technical knowledge and inventory depth to support you. Our team has the expertise to guide you through the selection of specialty flanges, ensuring optimal performance and safety. Browse our comprehensive online catalog or speak directly with one of our flange specialists today.​ Let us demonstrate how our quality inventory and expert service can streamline your procurement process for even the most complex projects.

The journey of partnership between Yuhao Stainless Steel Company and a prominent Turkish firm is a testament to resilience, quality, and mutual trust. Initially, the relationship was established through an international trade exhibition where representatives from both companies engaged in discussions about potential collaborations. The path wasn't without challenges. Language barriers, cultural differences, and varying business practices initially posed significant hurdles. However, Yuhao Stainless Steel demonstrated unwavering commitment by providing detailed product specifications, organizing virtual factory tours, and ensuring transparent communication at every stage. Despite these obstacles, what truly solidified this partnership was Yuhao's unwavering dedication to quality and efficiency. The first order placed by the Turkish company exceeded their expectations not only in terms of the superior quality of stainless steel products but also due to remarkably swift delivery times. This reliability led to multiple repeat purchases over time, strengthening their bond further. This successful collaboration exemplifies how overcoming initial difficulties can lead to long-lasting, profitable relationships built on trust, high standards, and timely service. It highlights Yuhao Stainless Steel's capability as a global supplier capable of meeting diverse international demands while maintaining excellence across all operations. This story serves as an inspiring example within the business community showcasing that perseverance coupled with top-notch offerings results in fruitful partnerships transcending geographical boundaries.We are Yuhao Stainless Steel Company, our stainless steel seamless pipe, flange, pipe fittings, valves are worthy of customer trust.      

At the recent Shanghai Trade Exhibition, Yuhao Stainless Steel Company showcased its commitment to excellence and innovation in stainless steel products. This prestigious event served as a vital platform for international trade, bringing together suppliers, distributors, and buyers from across the globe. Yuhao's participation was marked by significant success as numerous potential partners expressed keen interest in their high-quality samples. Yuhao's exhibition booth attracted a steady stream of visitors eager to explore their extensive range of stainless steel offerings. Engaging in constructive dialogues with these prospects proved invaluable for fostering new business relationships. Many suppliers were particularly impressed by the superior quality demonstrated through detailed product presentations and hands-on sample inspections. Notably, the interaction extended beyond mere discussions; several clients placed orders on-site after witnessing firsthand the exceptional craftsmanship and reliability that Yuhao represents. These immediate transactions underscored not only the appeal but also the trustworthiness inherent in Yuhao’s brand promise. This experience highlighted how face-to-face communication at such exhibitions can significantly enhance mutual understanding among international traders leading towards more fruitful collaborations. It reaffirms Yuhao Stainless Steel Company's position as a leading player within the global marketplace while reinforcing commitments towards delivering top-tier solutions tailored specifically for diverse customer needs worldwide. We are Yuhao Stainless Steel Company, our stainless steel seamless pipe, flange, pipe fittings, valves are worthy of customer trust.Through continued efforts like these exhibited events, Yuhao remains steadfast in promoting international commerce alongside building lasting partnerships built upon shared successes achieved together through open dialogue and transparent dealings practices.