25 U Beam Arch

The 25 U Beam Arch is a hot-rolled structural steel channel section manufactured from 20MnK low alloy structural steel, with a section height of 110mm, web thickness of 17mm, and unit weight of 24.76 kg/m. This profile is produced by Henan Zongxiang Heavy Industry Import And Export Co, .ltd. in Zhengzhou, Henan Province, China, with the source mill operating at an annual production capacity of 103,300 tonnes. The acid pickling surface treatment removes mill scale and prepares the steel for subsequent protective coating, a standard preparation for mining support applications where corrosion resistance extends service life in aggressive underground environments.

20MnK is a low alloy structural steel grade containing manganese and trace alloying elements that provide yield strength suitable for passive ground support systems in tunnels and mine roadways. The hot-rolled manufacturing process produces the U-shaped channel profile through continuous rolling at elevated temperature, maintaining dimensional consistency across lengths. Standard material certifications for this product category typically include mill test certificates with chemical composition and mechanical property data, though buyers should request specific documentation directly from the supplier. The 25U designation refers to a standardised series of mining support sections where the number indicates the approximate mass per metre in kilogrammes, with this variant sitting at the lighter end of the U-beam support range.

Underground mining contractors and tunnel engineering firms procure 25 U Beam Arch sections for installation as yielding arch supports or combined with shotcrete in composite support systems. The 110mm section height provides adequate structural depth for spanning moderate roadway widths in coal and metalliferous mines without excessive steel mass. Buyers should confirm available lengths, cut-to-length options, and bundling configurations with Henan Zongxiang Heavy Industry directly, as these details are not stated in the listing. The acid-pickled surface accepts epoxy zinc-rich primers or cold-galvanising compounds commonly specified for permanent underground installations.

Henan Zongxiang Heavy Industry Import And Export Co, .ltd. is located on Hanghai Road in Guanzhenghuizu District, Zhengzhou, Henan Province, China, with postal code 470000. The supplier holds a harbour trust tier on the platform, and displays a response rate of 0.00% with zero average response hours recorded. These metrics suggest either a newly listed account, limited inbound enquiry volume, or a profile where response data has not yet populated. The company sources 25 U Beam Arch from a mill with stated annual capacity of 103,300 tonnes, indicating access to production scale rather than direct manufacturing certainty.

The listing provides material specification, dimensional data, and surface treatment detail, but omits company history, founding year, employee count, revenue figures, and client references. No certifications, quality management systems, or export licence details are stated. Buyers should conduct independent verification of the supplier's export credentials, request recent mill test certificates, and confirm the relationship between Zhengxiang and the producing mill before placing trial orders. The acid pickling and hot-rolled treatment descriptions suggest commodity-level steel trading rather than proprietary manufacturing.