Q235B angle steel has the high temperature resistance

An obvious feature of Q235B angle steel is its high temperature resistance, because this kind of boiler steel pipe is mainly used in machining industry.Because the steel pipe needs to be heated at high temperature during processing. But only Q235B angle steel can withstand this high temperature, so that it can be better for all kinds of bending deformation. So Q235B angle steel is very high temperature resistant. In this way, it is not easy to melt at high temperature, so if the steel pipe material needs to be heated at high temperature, the Q235B angle steel would be a good choice.

1. Q235B angle steel specimen austenitic heating temperature is 880℃, cold insulation 2h oil, quenching after specimens respectively 560, 590, 620, 650℃ tempering, heat preservation 2h water cooling. According to GB/T2975, the tensile and impact specimens were cut at the corresponding position of the steel bar. Tensile test shall be conducted according to GB/T228 standard; Impact test is conducted according to GB/T229 standard.

2. According to the standard of GB/T231-2012, the hardness was measured on the dhb-3000 brinell hardness tester. The diameter of the steel ball was 10mm, the pressure was 29.4kn, and the load was kept at 15s. After the metallographic sample has been pre-ground, polished, and corroded by 3% nitric acid alcohol solution for 10 ~ 15s, the most obvious characteristic of Q235B angle steel is its high temperature resistance.

3. The most obvious high-temperature resistance is used in the kiln or mechanical processing industry, which plays a positive role in many fields due to its good high-temperature resistance and refractory performance. How high can Q235B angle steel withstand? Histological morphology was observed under AE2000MET with inverted metallographic microscope.

Katalor is a professional steel exporter and supplier in China, we have all size of Q235B angle steel. If you have any need in Q235B angle steel, please contact us freely. We will give you the best price in Q235B angle steel.