In order to obtain the seamless tube with smaller size and better quality, the method of cold rolling, cold drawing or the combination of the two must be used. Cold rolling is usually carried out on a two high mill, and A514 Gr H alloy steel plate pipes are rolled in a circular pass composed of a variable cross-section circular groove and a fixed conical head. Cold drawing is usually carried out on single chain or double chain cold drawing machines of 0.5-100t.
Delivery status of A514 Gr H alloy steel plate, SM490B steel plate: for SM490B steel plate with thickness ≤80mm, the delivery status is hot rolling; for SM490B steel plate with thickness ≥ 80mm, the delivery status is normalizing, and the delivery status and actual heat treatment system (holding temperature and time) shall be indicated in the material quality certificate.A514 Gr H alloy steel plate, SM490B steel plate can be processed and cut to various special-shaped parts according to the demand.
National Bureau of Statistics: Crude oil imports increased slightly, and international crude oil prices continued to rise. Imported crude oil was 89.57 million tons, a year-on-year increase of 4.1%; international crude oil prices continued to rise. On February 26, the spot FOB price of Brent crude oil was US.86/barrel, up 30.8% from US.37/barrel on January 4.
Hot rolled A514 Gr H alloy steel plate products on sale 5*2570*8150, 5*2450*11000, 8*2100*7800, 6*1750*6000, 7*3000*7350, 6*1850*7510, 6*2750*10000, 8*2090*6640, 6*1600*11640, 8*2200*8200, 8*1500*4850, 5.5*2400*8000, 6*2780*6000, 6*2750*8000, 8*2090*7990, 10*2450*8200, 8*1750*7950, 7*3000*7320, 10*2030*6580, 08*2920*7100, 8*2200*10000， 8*2500*10000， 10*2800*6280.
