The main form of SA709 Gr 50W carbon steel material and its application

ASTM A387 steel SA709 Gr 50W carbon steel material specification refers to 6 grades levels of alloy steel plate for elevated temperature applications, classified by chromium and molybdenum content, Grade 11 and Grade 12 has similar chemical content,they can be used in welded SA709 Gr 50W carbon steel material pressure vessels and industrial boilers, and mostly in oil gas and petrochemical industry, generally it is used for transportion of medium at high temperature.

Laser cutting is that the horizontal laser beam emitted by the laser changes into a vertical downward laser beam through the 45° total reflector, and then focuses through the lens, forming a tiny spot at the focal point. When the spot hits the material, the material is heated to the vaporization temperature quickly, and evaporates to form a hole. With the movement of the beam on the material such as SA709 Gr 50W carbon steel material, the auxiliary gas (carbon dioxide gas, oxygen, Nitrogen, etc.) blow away the melted slag, make the hole continuously form a very narrow width (such as about 0.1mm) cutting seam, and complete the cutting of materials.

As the thickness and hardness of SA709 Gr 50W carbon steel material increase, the tendency to crack at the cutting edge increases. In order to prevent the SA709 Gr 50W carbon steel material from cutting cracks, preheating should be carried out before SA709 Gr 50W carbon steel material cutting. Special attention should be paid to preheating to make the entire SA709 Gr 50W carbon steel material interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole SA709 Gr 50W carbon steel material cannot be preheated, the partial preheating method can be used instead.

The company has passed the ISO9001: 2008 quality system certification, strictly implemented the ISO9001 quality management system. Besides, we have continuously improved the after-sales service network to make every effort to provide more convenient, accurate and faster services for all customers. We will supervise the production, control the quality in the factory, Inspect the cargo before shipment, Issue the test report to sales department. From the steel prodcution to steel delivery, we always focus the whole process.