The Ultrasonic flaw detection principle of EN steel grade S275JR plates

Beijing machining center has more than 1000 employees, including 360 technicians, 28 engineers, 6 senior welders, 15 professional welders, 52 bachelor's degree, 3 doctor's degree, and 8 R & D team. It is a professional EN steel grade S275JR plates production team combining theory and practice. With an annual output of 80000 tons, looking forward to the future, our company continues to strengthen the advantages of EN steel grade S275JR plates leading suppliers in the four steel fields of steel plate, steel pipe, stainless steel and special steel.

According to the different manufacturing processes, there are hot rolled steel pipes and cold drawn EN steel grade S275JR plates seamless steel pipes. BBN sells seamless pipes of different sizes, weights and grades. Customers can choose between black EN steel grade S275JR plates line pipes and galvanized line pipes. From 2-3/8" to 24", steel grade A, B, X42, X80.

Weathering steel is made of ordinary carbon steel with a small amount of copper, nickel and other corrosion-resistant elements. It has the characteristics of high-quality steel, such as strength, toughness, ductility, forming, welding and cutting, abrasion, high temperature, fatigue and so on. The weathering resistance of weathering steel is 2-8 times of that of plain carbon steel EN steel grade S275JR plates, and the coating property is 1.5-10 times of that of plain carbon steel. Weathering steel has the characteristics of rust resistance, corrosion resistance, life extension, thinning and consumption reduction, labor saving and energy saving, etc..

Steel plate cutting and machining parts are mainly used in machinery manufacturing, ships building, landscape building, petroleum storage tanks, steel structures and mold processing industries. We can provide finished and semi-finished EN steel grade S275JR plates steel plates products according to the client needs. Realize the service from product drawings-steel plate procurement-steel plate cutting-steel plate processing EN steel grade S275JR plates steel plate distribution services, so as to save customers manpower and material resources.

A36 is American Standard ASTM material, SS400 is Japanese Standard JIS g3101 steel material for general structure, Q235 is Chinese standard GB700 material. The limitation of the content of the Mn element differs depending on the thickness of the A36 steel plate, and the A36 steel plate of 20 mm or less does not contain Mn. The EN steel grade S275JR plates, Q235 steel plate has requirements for the contents of C, Si, Mn, S, P and other elements. But SS400 steel plate only requires S and P to be less than 0.050, and no other element requirements.

Our company will accept the product quality objection registration record, pass it to the EN steel grade S275JR plates production unit and relevant departments, and timely coordinate the supervision of product EN steel grade S275JR plates quality objection. Our company coordinates the relevant department personnel to the customer unit to carry on the investigation, the processing.