Supply heavy nm450 plate application material welding

At present, in the iron and steel manufacturing industry, there are more and more manufacturers of NM450 plate application, automobile steel plate, so it is very important for us to find a high-quality automobile steel plate manufacturer for cooperation. In the selection of NM450 plate application, automobile steel plate manufacturers and products, it is better to find several companies to compare, and to summarize and select a more suitable automobile steel plate manufacturer to cooperate. We sorted out a few ways to select high-quality NM450 plate application, automobile steel plate manufacturers, and hope to help you to purchase!

The wear-resistant plate NM450 plate application shows good wear resistance: the chemical composition of the alloy layer contains 4-5% carbon and 25-30% chromium. The volume fraction of Cr7C3 carbide in the metallographic structure is more than 50%, the macro hardness is HRC56-62, and the hardness of chromium carbide is HV1400-1800. Because of the vertical distribution of carbides in the wear direction, the wear resistance of the cast alloy with the same composition and NM450 plate application hardness is more than twice as that of the cast alloy with the same composition and hardness. Compared with several typical materials, the wear resistance is as follows: (1) compared with low carbon steel; 20-25:1 (2) with as cast high chromium cast iron; 1.5-2.5:1.

Expression method of pressure coefficient of seamless steel pipe: pressure P < 7MPa coefficient S-8 7 < NM450 plate application steel pipe pressure P < 17.5, coefficient 5-6 pressure P > 17.5, coefficient S-4 seamless pipe production and manufacturing: tube blank -- Inspection -- peeling -- Inspection -- Heating -- perforation -- pickling -- grinding -- lubrication and air drying -- welding head -- cold drawing -- solution treatment -- pickling -- pickling and passivation -- Inspection -- cold rolling -- degreasing -- air drying -- internal polishing -- one external polishing -- Inspection -- identification of finished NM450 plate application product packaging.

our company is leading supplier of API 5CT casing pipes in China. N80 oil casing pipes enjoy high size precision, good weld toughness, NM450 plate application good extrusion resistance, easy quality control and low cost features. Welcome to our company to purchase NM450 plate application API 5CT N80 and so on casing pipes.

The company formulates clear service process and service standard. To do a good job in after-sales service, first of all, clear service process and service standards should be formulated to let employees know which procedures to perform and which service standards to abide by.