Junnan touts AWS D1.1 welding standard for 40x60 metal buildings

Tangshan Junnan Trade Co., Ltd. says it builds 40x60 metal buildings to AWS D1.1 welding standards to improve structural reliability, inspection readiness and long-term ownership costs. The company frames the code as a differentiator for export and industrial projects facing stricter third-party review.

Why it matters: - AWS D1.1 is a widely recognized welding code for steel construction, and Junnan is using it to position its 40x60 metal buildings for buyers that want higher confidence in structural performance. - The company links the standard to lower long-term maintenance, fewer repair disruptions and smoother third-party audits for industrial projects. - Junnan says the approach is meant to raise the technical bar for prefabricated steel buildings made in China.

What happened: - Tangshan Junnan Trade Co., Ltd. said it prioritizes AWS D1.1 standards in the design and fabrication of its 40x60 metal buildings. - The company said the code guides welding design, base metal preparation, welder qualification and final non-destructive testing. - Junnan said the process applies to standard 1,200-square-meter industrial plants, warehouses, garages, workshops, showrooms and exhibition centers. - The company published the announcement on June 16, 2026, from Tangshan, Hebei, China. - More information is available on the company’s official website.

The details: - Junnan describes AWS D1.1 as a stricter technical framework than basic national standards. - The company said it uses a digitized library of welding procedure specifications based on AWS D1.1. - Junnan said the WPS database covers plate thicknesses from 6 mm to 20 mm for main steel beams. - The company said welders must hold local special-operation licenses and pass AWS performance tests. - Junnan said its technical team undergoes regular evaluations to maintain AWS proficiency. - The company said it relies on ultrasonic or radiographic testing, filler-metal matching and preheating protocols to reduce hidden weld defects. - Junnan said its AWS-based process helps weld metal match the base steel and improves fatigue resistance under wind, seismic and temperature stress. - The company said it prepares inspection reports to align with AWS standards for export-oriented projects and foreign-invested factories. - Junnan said it maintains Procedure Qualification Records and WPS logs as part of its technical documentation.

Between the lines: - Junnan is selling more than steel frames. It is selling a compliance story that appeals to international developers, consultants and buyers who want traceable quality controls. - The emphasis on welding documentation and testing suggests the company is aiming to reduce procurement risk, not just compete on price or delivery speed. - The AWS D1.1 focus also signals an effort to stand out in a crowded prefabricated-building market where many suppliers compete on similar product categories.

What's next: - Junnan is likely to keep using AWS D1.1 as a core sales and manufacturing message for industrial steel projects. - The company said its standards are intended to support longer building life cycles and lower total ownership costs. - Junnan is directing buyers seeking specifications and industrial steel building details to its website and public social channels.