Baolai Steel, a Tianjin-based steel pipe manufacturer, is supplying ERW pipe for infrastructure and industrial projects worldwide, backed by integrated manufacturing, processing, inspection, and export support. The company's ERW steel pipe is widely used in oil and gas transportation, water pipelines, construction, piling, and other industrial applications. By offering pipes that meet international standards such as ASTM, API, JIS, GOST, and EN, with outside diameters up to 26 inches, Baolai Steel addresses diverse project requirements.
The company manufactures ERW pipes to specifications including API 5L, ASTM A53, ASTM A500, and EN 10217-1, and supports project-based orders with customized wall thicknesses, lengths, surface treatments, end finishes, and processing. Beyond standard production, Baolai Steel provides hot-dip galvanizing, protective coatings, beveling, threading, grooving, cutting, marking, and bending, all coordinated within the same supply system. This integration allows the company to manage multiple stages of an order without separating manufacturing, finishing, and inspection across different suppliers, thereby streamlining the supply chain.
Quality control is a critical aspect of ERW pipe supply, and Baolai Steel emphasizes thorough inspection processes. Each batch undergoes dimensional checks for outside diameter, wall thickness, and straightness, along with ultrasonic or eddy current testing for weld-seam integrity and hydrostatic pressure testing for leak resistance. Buyers can request applicable test reports or third-party inspection reports, providing a transparent basis for verifying that the supplied pipe meets the agreed specification before dispatch. For coated or galvanized orders, the inspection documentation also covers relevant coating or galvanizing requirements, giving procurement teams a clear review of key dimensions, tests, and inspection records.
Founded in 1991, Baolai Steel has built its business around infrastructure, energy, construction, water transmission, and fire protection applications. With an annual production capacity of approximately 5 million tons, the company supports both regular distribution and larger project-based requirements. Its quality and certification system includes API, JIS, ISO, UL, FM, LR, and other certifications applicable to different products and project requirements. UL and FM apply to relevant fire protection products, while API and other certifications cover corresponding steel pipe applications.
The company's strength lies in combining manufacturing, processing, inspection, and export services, offering customers a coordinated supply process from specification confirmation through production and shipment. This approach ensures reliable production, clear specifications, verifiable quality, and dependable supply, which are essential for international projects. For more information about Baolai Steel's ERW pipe offerings and capabilities, visit Baolai Steel.


