hardox 500 machinability datasheet and standard
A299GrA steel plate is one of the materials widely used in boiler drums (steam drums) of coal-fired generator sets. Boiler plate HARDOX 500 machinability is mainly used in the head and shell of subcritical boiler drum products. Generally used for various welding parts whose working temperature does not exceed 400°C, such as boiler steam drums, pressure vessels, etc., which require the steel to have a high medium temperature.
In terms of service, our service is a "one-stop" way of working. We have our own HARDOX 500 machinability processing plant and pretreatment plant, pretreatment of ship steel (shot blasting, derusting, painting). Technical parameters of steel plate and profile steel surface pretreatment production line. We can also let customers enjoy our other pretreatment services, such as HARDOX 500 machinability cutting, welding, drilling, galvanizing, etc., at the lowest cost.
As the thickness and hardness of HARDOX 500 machinability increase, the tendency to crack at the cutting edge increases. In order to prevent the HARDOX 500 machinability from cutting cracks, preheating should be carried out before HARDOX 500 machinability cutting. Special attention should be paid to preheating to make the entire HARDOX 500 machinability interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole HARDOX 500 machinability cannot be preheated, the partial preheating method can be used instead.
Composition characteristics of low alloy structural steel, HARDOX 500 machinability: (1) Low carbon: the carbon content of low alloy structural steel is less than 0.20% due to the high requirements of toughness, weldability and cold formability. (2) The alloy elements such as manganese are added. (3) The addition of Nb, Ti or V and other auxiliary elements: a small amount of Nb, Ti or V forms fine carbides or carbonitrides in the steel, which is beneficial to obtain fine ferrite grains and improve the strength and toughness of low alloy structural steel. In addition, adding a small amount of copper (≤ 0.4%) and phosphorus (about 0.1%) can improve the corrosion resistance. The addition of a small amount of rare earth elements can remove sulfur and gas, purify the steel, and improve the toughness and process performance of low alloy structural steel.
As one of the large professional metallurgical manufacturers in China, the strength of the brand, quality assurance, professional after-sales. Every day we are making unremitting efforts to challenge higher quality HARDOX 500 machinability products and more satisfactory services. Customer demand is our pursuit, and win customer satisfaction with quality. BBN after-sales team is responsible to solve the problem of technical support and quality, service complaints.
