Q345 Q355 Angle Channel

q345 is A low alloy steel, divided into A, B, C, D, E five grades, q345A does not do low temperature impact test, q345B, q345C, q345D, q345E do impact test, the temperature is 20˚C, 0˚C, -20˚C, -40˚C. q345D implementation standard: GB/T1591-2008 "Low alloy steel".

q355 is a low alloy steel, divided into B, C, D, E, F five grades, q355B, q355C, q355D, q355E, q355F impact test, the temperature is 0˚C, -20˚C, -40˚C, -60℃. q355D implementation standard: GB/T1591-2018 "Low alloy steel".

q345 and q355 Delivery status:

q345E steel to control tie, normalizing, normalizing + tempering, hot mechanical rolling (TMCP) and other states of delivery, if necessary according to customer needs also need to do Z performance test, such as Q345E-Z15, Q345E-Z25, Q345E-Z35 and so on. The inspection grade has the national standard first probe, second probe and third probe, the American standard A578 and A435, the European standard SEL, the Japanese standard JB/T 4730 and so on.

Steel angles are rarely used in a given structure without any added protective layer or coating. As such, most steel angles you'll find in the market are either galvanized or powder coated. Galvanizing creates a corrosion-resistant layer on the material, while powder coating is a form of surface finish made out of electrostatic-spray deposited (ESD) resins. When used in bridge ways, however, manufacturers need to ensure better product durability, which is why the angle bars are galvanized in the process.

Steel angles can be used to form any part of a bridge. For the deck, the angles can provide reinforcement to concrete and lower materials handling for constructors. Aside from this, steel angles can also be found in bridge components like arches, girders, bearings, or pedestrian pathways. Bridges with steel components have been known to last for several years or even decades, due to the material's robustness and strength even under load bearing or environmentally impactful situations.

Our factory has complete production facilities, and provides laser cutting , bending, welding, painting, assembly and other processing services.

We have own large-scale indoor warehouse with perennial spot stocks totally above 5000 tons mainly include 2000 tons galvanized

steel series and 2500 tons carbon steel series

All the products have to pass the inspections such as tension test, hardness test, spectrophotometer test, salt spray test and PH

test before leaving the factory .

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