Geological Steel Pipe DZ40 Geological Pipe_Geological Steel Pipe DZ40 Geological Pipe Wholesale_Geological Steel Pipe DZ40 Geological Pipe Price I. Geodrill Pipe Specifications: 42*5/6/6.5 50*6/6.5 60*7.1 63.5*7.5 73*9.19 89 *9.35 127*9.19/10 Materials: DZ55 (45Mn2), R780 (36Mn2V), R780 (42MnMo7). It is generally 9 meters long and can also be lengthened according to the user's needs. DZ55 (45Mn2) is of high quality and low price. R780 (42MnMo7) adopts the normalizing and tempering heat treatment process, and its mechanical performance is significantly improved compared with R780 (36Mn2V). Second, the rope core drill pipe: Specifications: 71 * 4.5/5, 73 * 6, 89 * 6 Material: 45MnMoB (DZ60), using cold-drawing process production, the accuracy of hot-rolled pipe high. Can be customized according to the length of customer needs. Third, the core tube: specifications for 73 * 4 89 * 4/4.2 108 * 4/4.2, material for the DZ40, DZ55 General DZ40 using 4.2mm wall thickness, DZ55 using 4mm wall thickness, length of 9 meters to the ruler. This can make full use of the material, the use of good results, and the lowest cost. After nearly six months of trials by old customers, the response was very good.
Fourth, the drill pipe: The main specifications are: 91*7/10 110*8/10 130*10 150*10 Material is DZ40(50Mn). After the pipe body has been inspected, it can eliminate hidden cracks and have high accuracy of outer diameter and wall thickness. Better than previous 45# steel pipe. Fifth, to take over the use of pipe: specifications are mainly 74 * 7 95 * 10 65 * 7 and so on, made of 30CrMnSiA or 45MnMoB, can be customized according to the customer's specifications required. 40Cr material (low price) can also be used.
Sixth, drill collar with steel: Specifications 68 * 20 material with DZ40 (50Mn), DZ55 (45Mn2), length can be 9 meters long, such as indeterminate ruler, the length of 11 to 12 meters. 7. Pipes for collar couplings, materials DZ40, DZ55, size 73*5*5.5/6, 89*6/6.45, 108*6. Eight, rig steel pipe. Specifications are usually 73 * 5.51, material DZ40 (37Mn5), the price is particularly favorable.
Our company is equipped with more than 2,000 tons of geological steel pipes of various specifications. The materials are 20CrNiMo, 40CrNiMo, 25CrMnMo, 40CrMnMo, 15-50Mn, 15CrMoG, 12CrMoVG, 20Mn2, 30Mn2, 40Mn2, 45Mn2.20Cr, 40Cr, 25MnCr, 30-35CrMnSiA, 12- 15CrMo, 20CrMo, 30-42CrMo, 1Cr5Mo, 27SiMn.GB9948, R780 (36Mn2V), R780 (42MnMo7) Petroleum Cracking Pipes are mainly used for the manufacture of high-quality carbon structural steels, alloy structural steels for high pressure and higher pressure steam boiler pipes, etc. And stainless heat-resisting steel high-pressure seamless pipes; use drilling rigs to drill wells for the exploration of underground rock stratum structure, groundwater, oil, natural gas and mineral resources, etc. Oil and natural gas production can not be separated from drilling wells, and oil drilling for geological drilling is not used. Seam steel pipe is the main equipment for drilling, mainly including core outer pipe, core inner pipe, casing, drill pipe, etc. Since the drilling pipe needs to work deep into the depth of a few kilometers, the working conditions are extremely complicated and the drill pipe can withstand pulling. Stresses such as pressure, bending, torsion, and unbalanced impact loads are also subject to wear by mud and rock. Therefore, it is required that the pipe must have sufficient strength, hardness, and resistance. The “DZ” (Geological Pinyin initials) plus the number one represents the steel yield point for steel and steel duct steel. The commonly used steel grades are 45MnB, 50Mn with DZ45, 40Mn2, 40Mn2Si with DZ50, and 40Mn2Mo with DZ55. 40MnVB; 40MnMoB of DZ60, 27MnMoVB of DZ65.
