Tube seamless tube plant

_45 # 20 # tube custom billet plant Our annual homegrown quality tube, capillary, shortage of pipe, following a non-standard, length, special specifications tube, capillary, shortage tube custom processing. Materials including mild steel, carbon steel and alloy steel billet, steel, 10 #, 20 #, 35 #, 45 #, and 15Cr, 40Cr, 30CrMnSi, 12CrMoV, GCr15, GCr9, GMnMoV so on. Typically tube, made of high quality (or alloy) as a solid round tube. Under normal circumstances, the tube means round tube. Round tube size specifications in order to represent the diameter of a solid round. 0635-8884806 tube directly affects the surface quality of the outer surface of the quality of the finished steel pipe. In the hot-rolled steel production, the first state of the tube surface rigorous inspection, the outer surface of the tube are not allowed to have scarring, crack, crack hair, grooves, folding, dents, ears, porosity, pitting, trachoma and non-metallic inclusions and other defects. When the defect depth more than 0.7 to 1.0 mm, the defect can not be burned with heated tube, but remains on the surface of the tube will be extended to any defect in piercing the deformation process, so any defects are defects in the outer surface of the pipe Extended wear rolling deformation process, so that the defect in the outer surface of the steel pipe to deepen longer, resulting in waste. Local defects of the above should be cleaned in a timely manner, but the defect depth must not exceed 5% of the processing tube diameter. Tube production process: iron - steel - open-hearth steel (or electric furnace steel and basic oxygen furnace steel) - ingot - blooming - rolled round - tube current relationship for domestic billet 76 to 100 units Press ingot size can be divided into four types: (1) with a number of large ingots 8.3 blooming through 1150, and then a second rolling timber tube; (2) 20 inches (500 mm) ingot 850 or 750 blooming open blanks. Then a second rolling timber tube; (3) 8 inches (200 mm) by 500 small ingot breakdown rolling mill, direct supply tube; (4) the use of continuous casting billet, after rolling for tube blanks. (5) In recent years, low-cost technology to the tube, to develop oxygen furnace to produce steel billet and slab, about 15% of the cost can be reduced Po Pipe Co., Ltd. Liaocheng /// 20 # tube ordered _45 # tube plant