Huashang Steel specializes in the production of premium Stub Ends and Collars designed for seamless, secure, and leak-proof connections in industrial pipeline systems. Our Stub Ends and Collars provide a smooth transition between pipes, ensuring uniform wall thickness, high corrosion resistance, and dependable performance under extreme pressures and high-temperature conditions. Manufactured according to international standards including ASTM, ASME, DIN, and BS, our fittings meet the most stringent mechanical and chemical composition requirements for demanding industrial applications.
Huashang Steel offers a comprehensive range of Stub Ends and collars suitable for carbon steel, stainless steel, and alloy piping systems. Our selection covers standard dimensions and custom specifications to ensure precise fitting, high durability, and optimal service life. Popular sizes and grades are readily available, while tailored solutions are provided for specialized pipeline projects. These fittings are compatible with our Duplex Steel Seamless Pipes and other piping solutions, offering a complete pipeline system solution.
All our Stub Ends and Collars are manufactured in strict compliance with internationally recognized standards. Key technical specifications include:
ASTM A403/A182 for stainless steel and alloy fittings
ASME B16.9 for butt-welded fittings
DIN 2633-2635 and BS EN 10253 for European standard compatibility
Custom wall thickness and dimensions available upon request
Each fitting undergoes rigorous quality testing including dimensional verification, chemical composition analysis, mechanical property assessment, and non-destructive examination methods such as hydrostatic testing and penetrant inspection. These ensure that every Stub End & Collar meets the highest quality and safety standards required in industrial applications.
Huashang Stub Ends and Collars are trusted by clients across multiple industries, including:
Oil & Gas: Suitable for offshore pipelines, subsea systems, refinery installations, and high-pressure process lines.
Chemical & Petrochemical: Ideal for reactors, distillation columns, and processing pipelines handling corrosive chemicals.
Water Treatment & Desalination: Corrosion-resistant solutions for potable water, wastewater, and industrial water systems.
Shipbuilding & Marine Engineering: Reliable fittings for seawater applications, shipboard pipelines, and marine processing equipment.
Power Generation: Applicable in high-pressure steam and cooling water pipelines in power plants.
Produced with advanced CNC machining centers and specialized equipment, our Stub Ends and Collars are manufactured with precise tolerances to ensure leak-free connections. Each product undergoes rigorous quality assurance at every stage of production, including:
Dimensional inspection for accurate fitment
Chemical composition verification for corrosion resistance and strength
Mechanical testing including tensile, impact, and hardness evaluations
Non-destructive testing such as hydrostatic testing, penetrant testing, and ultrasonic inspection
Our commitment to quality is supported by strict QA/QC procedures and full material traceability, with certificates provided for every batch. Raw materials are sourced from trusted suppliers to guarantee consistent performance and reliability.
Huashang Steel provides extensive customization services to meet unique project requirements. Our engineering team works closely with clients to develop solutions including:
Special wall thicknesses and diameters
Custom corrosion-resistant grades for harsh environments
Special surface finishes and machining for precise installation
Integration with other pipeline products such as Duplex Steel Pipes
We also offer professional technical support and consulting to help with material selection, pipeline design, and application-specific recommendations.
With an established global logistics network, Huashang Steel ensures timely delivery of Stub Ends and Collars to clients worldwide. We provide secure packaging for long-distance transportation, export documentation, and mill test certificates for seamless import/export compliance. Our extensive inventory ensures stable supply and competitive lead times for large-scale industrial projects.
Huashang Steel is a trusted manufacturer and supplier with decades of experience in producing high-performance pipeline fittings. Our advantages include:
Comprehensive product range of Stub Ends and Collars and related piping products
Strict adherence to international standards and quality control
Custom engineering solutions and technical support
Reliable global supply and logistics
Long-term partnerships with clients in oil & gas, petrochemical, water treatment, and marine industries
Discover our full portfolio of products and learn more about Huashang Steel. Contact our sales team today for detailed product specifications, quotations, and custom solutions for your industrial pipeline projects.
