Import Astm B338 Titanium Seamless Tubes — Buy in Bulk from Supplier in China

ASTM B338 Titanium Seamless Tubes from Baoji Mingkun Nonferrous Metal Co., Ltd are cold-worked or hot-finished tubes manufactured to ASTM B338 and ASME SB338 standards for heat exchanger and condenser service. The seamless construction eliminates longitudinal weld seams, providing uniform circumferential strength and improved fatigue resistance over welded alternatives. Typical grades supplied include commercially pure titanium Grade 2 (UNS R50400) and Grade 1, with exact alloy designation to be confirmed with the supplier against your project requirements.

The tubes are produced from titanium sponge via vacuum arc remelting (VAR), with typical starting billet chemistry conforming to ASTM B367 for Grade 2. Seamless manufacture proceeds either by extrusion followed by cold reduction (pilgering) on mandrel mills, or by deep-hole drilling from solid round bar. Typical dimensions range from 6 mm to 114 mm outer diameter and 0.5 mm to 10 mm wall thickness, though exact size availability requires direct confirmation. Surface condition is typically descaled and pickled (chemically milled in nitric-hydrofluoric acid) or bright annealed, depending on final application. Standard testing includes hydrostatic or pneumatic leak testing, ultrasonic examination per ASTM E213, and eddy current inspection.

Primary applications span shell-and-tube heat exchangers, surface condensers, evaporators, and process piping in chemical processing, desalination, offshore oil and gas, and power generation. Marine environments particularly benefit from titanium's immunity to chloride-induced crevice and pitting corrosion. Buyers should confirm with Baoji Mingkun the specific grade, heat treatment condition (annealed or stress-relieved), dimensional tolerances per ASTM B338 Table 3 or Table 4, and whether third-party inspection (SGS, BV, TUV) is available. The supplier lists no response history, so direct enquiry is essential to establish capability, current lead time, and minimum order quantities.

Baoji Mingkun Nonferrous Metal Co., Ltd is located at Dongxing Industry Garden, Baoji 721013, Shaanxi Province, China, a region with established titanium and zirconium processing infrastructure. The supplier carries an imported tier designation and harbor trust tier, with no recorded response rate or average response hours in the available data. This absence of response metrics means buyers should initiate contact to assess communication reliability and English-language capability before committing to trial orders.

The listing positions the company as offering ASTM B338 compliant tubes with flexible supply arrangements, though no verified factory audit details, ISO certification numbers, or named end-user references are present in the source material. Buyers should request the supplier's quality manual, evidence of ASTM B338 testing capability, and sample mill test certificates (MTCs) with full chemical and mechanical traceability. The company's geographic concentration in Baoji, China's 'Titanium Valley', suggests access to regional melting and forging capacity, but independent verification of in-house versus outsourced manufacture is advisable.