Import A106 U Shape Heat Exchanger — Buy in wholesale FOB from Supplier in China

The A106 U Shape Heat Exchanger from ARK Steel Tube Company is a seamless stainless steel tube bundle formed into a U-bend configuration for shell-and-tube heat exchanger and boiler applications. Manufactured to ASTM A106 and compatible standards, the U-bend geometry allows thermal expansion and contraction without expansion joints, making it suitable for services with large temperature differentials between shell and tube sides. The tubes undergo argon welding of shell-to-tube joints and electropolishing treatment to enhance corrosion resistance and reduce fouling tendency in fluid media heat transfer.

Material options span austenitic, duplex, and ferritic stainless grades including 304/L, 316/L, 321, 347H, 316Ti, 317L/N, 310S, 253MA, 904L, and duplex grades S31803, S32205, S32750, plus martensitic grades TP410, TP420, TP430, and others. The outer diameter range covers 3 mm to 813 mm with wall thickness from 0.05 mm to 120 mm, though typical heat exchanger tubing falls in the smaller diameter and thinner wall portion of this range. Standard specifications referenced include ASTM A213, A210, A192, A179, A106, and A249, depending on material grade and service requirements.

Applications focus on boiler wall panels, condenser equipment, superheaters, and steam pipelines in power generation, petrochemical, and general industrial process plants. The U-bend configuration is particularly valued in services requiring periodic mechanical cleaning or where tube replacement must be minimised. Buyers include power plant operators, refinery maintenance contractors, and heat exchanger OEMs. ARK Steel Tube Company operates from Taizhou, Zhejiang Province, with no stated minimum order quantity or lead time in the listing, so buyers must confirm commercial terms directly.

ARK Steel Tube Company is located at E802, Xintai Square Building, Jiaojiang District, Taizhou, Zhejiang Province, postal code 318000. Taizhou sits on the central coast of Zhejiang with port access through Taizhou Port and proximity to the Ningbo-Zhoushan port complex, one of the world's largest container ports by throughput. The supplier's trust tier is harbour, indicating baseline platform verification. The response rate is shown as 0.00 with zero average response hours, which signals that communication response data has not yet accumulated or the listing is new. Buyers should initiate direct contact to assess current responsiveness and technical competency.

The company profile does not disclose year of establishment, production facility details, employee count, annual output, revenue, or named customers. No specific quality system certifications, laboratory accreditations, or manufacturing licenses are listed. The address is a commercial building rather than an industrial site, which may indicate a trading office with manufacturing outsourced, or it may be a sales office separate from production facilities. Buyers should request clarification of the company's role, whether manufacturer, trader, or hybrid, and ask for factory audit reports or third-party verification of production capability. The material grade range is extensive, suggesting either broad sourcing capability or partnership with multiple mills.