Cause analysis of red oxide iron on SA573 Grade 70 carbon steel structural tubing surface

We can process the steel materials according to your drawing. Or if you can not make drawing, please send us SA573 Grade 70 carbon steel structural tubing specific data and requirements, our technical department can make design and drawing for you, and then confirm with your technician or engineer. If all is OK, our processing center will process the steel materials according to the drawing. So no matter what size and shapes you need, we can meet demands at the most time.

S355NL normalized steel has different impact energy requirement for impact tests at different temperature environment. S355NL plate shall be done impacting test in longitudinal direction under -50℃ with the minimum energy 27J. When customers request done charpy_V notch test under -20℃,then the impacting energy shall be above 47J. For the transverse direction,the engery shall be above 16J under the temperature -50℃. The SA573 Grade 70 carbon steel structural tubing, steel Grade S355NL making process shall according to EN10025-1.

Welding is mainly used for manufacturing metal structure parts, and also for manufacturing machine parts. The welding connection performance is good, and it is convenient to weld SA573 Grade 70 carbon steel structural tubing steel plates, profiles or castings and forgings according to the needs. At the same time, welding can also connect different shapes and sizes (plate thickness, pipe diameter) or even different materials, so as to reduce weight, save materials, optimize resources and other purposes. The welding structure has high rigidity, good integrity, and easy to ensure air tightness and water tightness, so it is especially suitable for SA573 Grade 70 carbon steel structural tubing manufacturing hollow structures with high strength and large rigidity (such as pressure vessels, pipes, boilers, etc.).

Plate 20 to 30mm thick SA573 Grade 70 carbon steel structural tubing product: 20*1400*11400, 20*2100*7000, 20*2500*6200, 20*2933*7300, 20*3200*4400, 20.9*2851*7000, 21*2100*8810, 21.5*1630*13480, 22*3400*13000, 23.1*2590*7790, 25*1950*10150, 25*1950*9700, 25*2100*8400, 25*2100*8650, 25*2400*11600, 25*2400*8200, 28*2170*13000, 30*1600*10720, 30*1600*8600.

In the process of SA573 Grade 70 carbon steel structural tubing steel transportation, enterprises often use railway transportation, highway transportation, water transportation and other ways to transport. According to the cargo owner's requirements on the timeliness of the goods and the different transportation routes, our company will choose SA573 Grade 70 carbon steel structural tubing different modes of transportation. According to the specific needs of customers, or specify the mode of transportation.

The company adheres to the business philosophy of "good quality, customer first, honesty and trustworthiness", and strives to provide customers with high-quality SA573 Grade 70 carbon steel structural tubing products and excellent services. Our company's products SA573 Grade 70 carbon steel structural tubing are widely used in petroleum, chemical, power station, boiler and other industries, mainly used in reactors, heat exchangers, separators, spherical tanks, oil and gas tanks, liquefied gas tanks, nuclear energy reactor pressure shells and other equipment.