2011 Geological Steel Pipe Classification in June 2011

June 2011 Geological Steel Pipe Classification | Kunlian Steel Pipe Supply I. Geological drill 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 Material: DZ55 (45Mn2), R780 (36Mn2V), R780 (42MnMo7).
Second, rope core drill pipe: Specifications: 71 * 4.5/5, 73 * 6, 89 * 6 Material: 45MnMoB (DZ60).
Third, the core tube: specifications 73 * 4 89 * 4/4.2 108 * 4/4.2, material for the DZ40, DZ55.
Fourth, the drill pipe: The main specifications are: 91*7/10 110*8/10 130*10 150*10 Material is DZ40(50Mn).
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.
Sixth, drill collar steel: Specifications 68 * 20 material has DZ40 (50Mn), DZ55 (45Mn2).
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.
Company abbreviation: Shandong Liaocheng Kunlian Steel Pipe Contact: Bu Lingwei Zhang Bing Tel:
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