Seamless Carbon Steel Pipe 20# 6 inch Sch 40

Seamless carbon steel pipe in grade 20# (GB/T 8162 / GB/T 8163), 6 inch nominal bore with a Schedule 40 wall, supplied for oil and gas gathering lines, water transmission and general structural service. Manufactured without any longitudinal weld, the seamless structure gives uniform strength along the full length — the first choice where pressure integrity matters.

Specifications

Typical Applications

20# seamless pipe is widely used in low- and medium-pressure service: oil and gas field gathering lines, boiler and heat exchanger piping, water supply, hydraulic systems and structural columns. Its machinability and weldability also make it a favourite for mechanical parts and shafting.

Every batch is supplied with a mill test certificate covering chemical composition and mechanical properties, and lengths can be cut to your drawing before shipment. As an experienced supplier of seamless carbon steel pipe and related carbon steel products, we support both single-size orders and mixed-container programmes.

Available in standard 6 m and 12 m lengths or cut to your exact dimensions, with ends bevelled, threaded or plain as specified. For higher-pressure service the same size can also be supplied in ASTM A106 Gr.B, and surface protection options include varnishing or hot-dip galvanizing.

Send your required quantity and destination port to request a quotation — we respond with mill-direct pricing and a confirmed delivery schedule.

Related

New to seamless pipe? Read our guide to seamless steel pipe — how it is manufactured, how it compares with welded pipe, and where it is used — before you buy.