Supply & Demand

Stainless Steel Sanitary Tube Inner wall roughness: Ra ≤ 0.4μm Delivery condition: Internally and externally polished Applications: Food, biopharmaceutical, etc.

Stainless Steel Heat Exchanger Tubes Manufacturing standards: ASTM A249, EN 10217-7, ASTM A269, ASTM A789, ASTM A790, ASTM A705, ASTM A312 Length: According to customer requirements

Stainless Steel Coiled Tube Size range: Outer diameter 5.0mm – 25mm, wall thickness 0.5mm – 2.0mm Length range: 25m – 10,000m Applications: Petrochemical industry, instrumentation, etc.

Welded stainless steel precision-rolled tube ID tolerance：±0.03mm Internal surface roughness： Ra ≤ 0.3μm

The company is located in Xintang Town, Guangzhou City. It is mainly engaged in the design and manufacturing of mechanical products, as well as the repair of special‑purpose vehicles. In the 1980s, the company developed and produced China’s first domestic production line for stainless steel pipes and profiles together with supporting moulds. Through continuous improvement and upgrading, its technical performance has become increasingly sophisticated. Advanced technologies have been successively introduced and self‑developed and applied to stainless steel industrial welded pipes, including single‑gun and multi‑gun welding, on‑line internal weld levelling for steel pipes, on‑line bright solution heat treatment for steel pipes, and on‑line eddy‑current testing for steel pipes. Well‑received by customers, these technologies have fully replaced similar imported products. The company also manufactures high‑precision high‑frequency welded pipe production lines, thin‑wall copper tube welded pipe production lines, as well as titanium and aluminium welded pipe production lines.

Product Standard: ASTM A312, A269, A213, A790, A789, A511, B677, EN 10216-5, GOST 9941-81 Annealing: Bright Annealing & Solution Annealing Material Grade: 304L, 316L, 316Ti, 321, 317L, 347H, 310S, 904L, S31803, S32205, S32750, S32760, S31254, N06625 Size: OD 6-830mm, THK 0.5-60mm

Compared with the same grade of OLET, the 3D effect presents obvious advantages. The pipe fittings are forged as a whole, better ensure the consistency of the grain size and grain structure of the material, the arc at the branch makes the main pipe and the branch pipe perfectly connected, the inner and outer arc are processed and processed by the machining center as a whole, the consistency is extremely high, the use of high‑precision processing can be done without projecting each pipe separately, directly pre‑opening, and the enlarged skirt design can effectively reduces the stress concentration at the weld of the main pipeline; It reduces the stress concentration caused by defects such as weld penetration, incomplete fusion, porous slag inclusion, etc., and the hidden dangers affecting structural integrity. The SWEEPOLET and the main pipe are habitually connected, so that the weld is convenient for non‑destructive testing inspection such as radiation, and the reinforced branch pipe and arc adopt a connection design, so that its life is several times longer than the existing branch pipe fittings. The over‑all structure of the pipe fittings is long axial length, so that the upper branch have better support; The short radial length better ensures the axial consistency of the main pipeline. Validation: Static Stress Analysis.The results show that the yield resistance between 60℃ and 70℃ meets the requirements.In the AGPP project,it is safe and reliable in the 300LB natural gas pipeline.

The Shanghai Steel Tube Industry Association (hereinafter referred to as "the Association" or "SSTA") was established in April 2000 at Baosteel in Shanghai, with Baosteel Group Corporation serving as the founding president. Recognized and registered on December 31, 1999, by the Shanghai Municipal Civil Affairs Bureau with the approval of the Shanghai Municipal Commission of Economy and Information Technology, the Association is a statutory, non-profit social organization composed voluntarily of enterprises along the steel tube industry chain and other relevant economic entities. It functions as an industry service and self-regulatory body.

Currently, the Association has over 200 member enterprises, covering a broad range of products including seamless steel pipes, welded steel pipes, composite steel pipes, special-shaped steel pipes, and cold-formed steel profiles. The materials utilized encompass carbon steels (including alloy steels) and stainless steels. Its membership also includes upstream and downstream manufacturers of steel tube equipment, warehousing and logistics service providers, information technology service firms, and steel pipe trading companies.