STK 500 & STK 400 Scaffolding GI Pipe for Construction

Short Description:

Huayou GI scaffolding pipes are manufactured to meet JIS and BS EN standards. Available in STK 500 and STK 400 grades, these galvanized pipes feature a 48.6mm O.D., commonly used with scaffolding clamps in construction. Different from BS1139 and EN39 tubes with 48.3mm O.D., Huayou provides complete GI pipes, couplers, and fittings. As an ISO 9001 manufacturer, all products are strictly tested for quality and compliance.

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Huayou is a professional GI pipes manufacturer and supplier in China, offering high-quality galvanized steel tube solutions for global construction projects. Our product range includes round GI pipes, BS1139 Scaffold Tubes, BS1139 EN39 compliant scaffolding tubes, square and rectangular hollow sections (SHS/RHS), oval pipes, and customized galvanized profiles. We provide flexible production for different sizes and dimensions, with GI pipes available up to 12 meters in length. Standard 6-meter GI pipes are widely used in scaffolding applications, and cutting services are available to meet specific project requirements.

STK500 GI Pipe JIS Standard Sizes and Specifications

Code	Items	Size (mm)	Length	Surface
WSTK50	GI Scaffolding Pipe	O.D 48.6	0.3-6.4m	H.D.G

For more details about Huayou GI pipes and scaffolding pipe solutions, please feel free to contact our professional sales team. We will provide technical support, product information, and the latest competitive quotation based on your requirements.

GI Pipes, MS Pipes and JIS Standard Scaffolding Pipes

Huayou is a professional Scaffolding Pipes Manufacturer providing high-quality GI pipes, MS pipes, and galvanized steel tube solutions for global construction applications. GI pipes feature a zinc coating layer that provides excellent corrosion resistance and a smooth surface finish, making them more durable than ordinary MS pipes in outdoor environments.

GI pipes are produced from hot-dip galvanized steel coils, while MS pipes are manufactured from mild steel plates. MS pipes can also be galvanized after welding and forming, creating GP pipes with thicker zinc coating and enhanced protection, although they come at a higher cost compared with standard GI pipes.

Huayou supplies various GI pipe solutions that comply with international standards, including BS, EN, JIS, KS, ASTM, and other specifications. Our in-house quality control system covers raw material inspection, welding performance testing, dimensional checks, galvanizing adhesion tests, and salt spray testing to ensure reliable performance and long service life.

For JIS standard scaffolding applications, Huayou offers STK 500 and STK 400 GI pipes. STK 500 provides higher strength compared with STK 400, and both grades are widely used in scaffolding systems with an O.D. of 48.6mm according to Japanese and Korean standards. Pipe lengths can be customized from 0.3m to 6.4m, with 6-meter lengths being the most commonly used size for construction scaffolding.

Besides standard scaffolding pipes, Huayou also provides customized galvanized round pipes in different diameters, including 1.25 inch, 2 inch, 2.5 inch, 3 inch, and other sizes to meet various project requirements.

JIS GI Pipe Applications in Construction

Huayou JIS GI pipes are widely applied in construction scaffolding systems, serving as the main structural components for access scaffolds, suspended scaffold structures, and temporary support frameworks for concrete formwork. Their reliable strength and galvanized protection make them suitable for repeated use in various building projects.

As a professional steel scaffolding tubes supplier, Huayou also provides compatible scaffolding accessories, including clamps, couplers, and galvanized scaffold decks. The metal scaffold boards create stable working platforms and walkways, while board retaining clamps securely connect the decks with tubular scaffold frames, improving overall safety and stability during construction operations.