The customer is the agent in Colombia of a mining company. He want U25 and U29 steel arch support. He send us the specification drawing. The material grade required is Q235B and our main material is 20Mnk. Q235B is a kind of low-carbon steel according to GB/T 700-2006 standard. It is one of the most common steel material in China with cheap price and can be used to make most steel products which have relatively not high requirement for steel performance. 20Mnk is a kind of steel material made according to GB/T4697-2008 standard. The following is the difference of mechanical properties and chemical composition between Q235B and 20 Mnk.

We introduced that we have manufactured and exported this cargo to Colombia for many years. So we are a professional suppler of u-beam steel arch support. In addition to the arched, he also need IPE180 and HEA140. Although these are not our main products, we can check with other factories and find the suitable cargo for our customers.

ZX Steel Group has been engaged in steel trade plate processing nearly 20 years. We establish branch companies and processing plants in Shanghai, Henan, Hebei, Guizhou.

We strive to provide customers with more convenient, thoughtful, high quality service. And our products have been exported to countries and regions over the world, like Russia, India, Pakistan, Thailand, Korea, Brazil, South Asia and so on.

We have inventory, resources, and experience to meet your needs.