Best quality cheap SMA400AW hot-rolled angle steel bars

If the wall thickness of the elbow is relatively thick, it is best to perform stress relief heat treatment on the weldment immediately after welding. This is especially true for large-thickness weldments Q235B, high-rigidity structural parts, and weldments that work under severe conditions (dynamic load or impact load). The tempering temperature for stress relief is 600～650℃. For thin-walled elbows, stress heat treatment is not necessary after welding.

The company adheres to the SMA400AW hot-rolled angle steel bars business tenet of "integrity casting strength, cooperation creating win-win", takes value-added service of supply chain as the tenet, and under the premise of existing market, bulk trade, logistics distribution and other advantages, develops a new comprehensive steel industry model combined with informatization. And will continue to provide customers with high-quality steel products and good service. We sincerely welcome new and old customers to join hands with our company SMA400AW hot-rolled angle steel bars and seek common development!

we also provide the SMA400AW hot-rolled angle steel bars welding service for customers, and our welding method, hand arc welding, submerged arc welding and tungsten argon arc welding, melting polar gas shielded welding and so on. And we have lots of successful SMA400AW hot-rolled angle steel bars welding project, such as longitudinal submerged arc welding pipe, welding cross colume, prestressed truss and welding box colume.

With the increase of temperature, the yield limit of SMA400AW hot-rolled angle steel bars will decrease monotonically, but the tensile strength of SMA400AW hot-rolled angle steel bars will rise to a high peak value at a certain temperature, and then decrease. This peak temperature is called the blue brittleness temperature of SMA400AW hot-rolled angle steel bars. Near the blue brittleness temperature, the SMA400AW hot-rolled angle steel bars strength increases and the plasticity decreases. The elongation and section shrinkage of SMA400AW hot-rolled angle steel bars increase with the increase of temperature, but there is a low peak at the blue brittleness temperature. The blue brittleness temperature of low carbon steel ranges from 200 ℃ to 250 ℃. The blue brittleness of low alloy steel is not obvious as that of low carbon steel, and the blue brittleness temperature is higher.

There is a careful, patient, enthusiastic and thoughtful after-sales team, a professional distribution, ultra-efficient warehouse and logistics center, a marketing team with marketing expertise, an innovative technology center with strong steel technology, an experienced manufacturing center with rigorous professionalism Quality Inspection Center, an operation team with many years of administrative management experience. Such a strong combination of teams makes BEBON a steel giant in Henan Province.