API 11B Polished Rods

Polished rodThree types of polished rods are available: conventional grade D polished rod,Website:http://www.petroleum-machinery-china.com, one end diameter enlarged polished rod and high-strength, long stroke, corrosion resistant polished rod. All the polished rods are made of quality alloy steel and machined by using the advanced machining technology with high strength, smooth surface and long service life. All types of the polished rods are API and ISO9002 certified. ●  Specifications of Conventional grade D Polished RodModel900800700600Stroke length m (ft)7.3 (23.95)7.0 (22.96)6.0 (19.68)5.0 (16.4)Peak polished rod load kg (lbs)16, 310 (35, 957)14, 000 (30, 864)12, 000 (26, 455)10, 000 (22, 045)SPM-Max s/min45.3SPM-Min s/minNo Absolute MinimumShipping weight kg (lbs)19, 500 (42, 900)17, 500 (38, 580)15, 500 (34, 171)13, 500 (29, 762)Unit width m (ft)2.4 (7.87)2.2 (7.22)Unit height m (ft)12.4 (40.68)11.1 (36.42)10.1 (33.14)9.2 (30.18) ●  Specifications of One End Diameter Enlarged Polished RodsSizemm (in)MaterialSurfacecoatingTensile strengthM Pa (psi)SuitablemediaLengthm (ft.)25 (1)20CrMoNi35794-965 (115, 000-140, 000)Cl-, CO2, H2S2.4 (8), 3.3 (11)4.8 (16), 6.7 (22)7.3 (24), 7.9 (26)9.1 (30), 10.9 (36)28 (1-1/8)20CrMoNi3532 (1-1/4)20CrMoNi3538 (1-1/2)20CrMoNi35 ●  High Strength Long Stroke Corrosion Resistant Polished RodThe polished rod is made of 20CrMo alloy steel and heat treated by quenching and tempering. Its surface is hardened with induction heating. The rod surface is coated with nickel-based alloy (Ni60A) to make the rod body not to scale off and crack, and obtain high resistance to corrosion and wear. The product is used for pumping crude oil in deep wells, large displacement wells, heavy oil wells and high corrosion wells.Sizemm (in)MaterialSurfacecoatingTensile strengthMPa (psi)SuitablemediaLengthm (ft.)25 (1)20CrMoNi35794-965 (115, 000-140, 000)Cl-, CO2, H2S2.4 (8), 3.3 (11)4.8 (16), 6.7 (22)7.3 (24), 7.9 (26)9.1 (30), 10.9 (36)28 (1-1/8)20CrMoNi3532 (1-1/4)20CrMoNi3538 (1-1/2)20CrMoNi35