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Zhong Yuan Special Steel Co.,Ltd.
Registered Address:China 河南 济源
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We produce the whole HWDP using AISI 4145H alloy steel as API specification and implementation of SY / T5146 standard.The material is formed by forging machine as one piece,heat-treated by Pit furnace, thickened at both ends of the joints and spray hardbanding in the middle of the segment.It can spray America Bianco authorized 100XT, 300XT wear-resistant materials, can be cold thread rolling, copper or phosphate processing, machine double shoulder thread and other specifications of the special thread.
整体加重钻杆尺寸规格
| 规格 | 外径C | 内径E | 接头 | 管体 | 单根质量 Kg | ||||||
| 型式 | 外径 A | 内外螺纹台肩倒角 DF mm | 加厚部分尺寸 | ||||||||
| 中部 D mm | 端部 B mm | ||||||||||
| mm | in | mm | in | mm | in | ||||||
| I型（单根长度9300mm） | |||||||||||
| ZH-JZ66-6 5/8FH-Ⅰ | 168.3 | 6 5/8 | 114.3 | 4 1/2 | 6 5/8FH | 209.6 | 8 1/4 | 195.70 | 184.2 | 176.2 | 965 |
| ZH-JZ55-5 1/2FH-Ⅰ | 139.7 | 5 1/2 | 92.1 | 3 5/8 | 5 1/2FH | 177.8 | 7 | 170.7 | 152.4 | 144.5 | 730 |
| ZH-JZ50-NC50-Ⅰ | 127.0 | 5 | 76.2 | 3 | NC50 | 168.3 | 6 5/8 | 154.0 | 139.7 | 130.2 | 700 |
| ZH-JZ45-NC46-Ⅰ | 114.3 | 4 1/2 | 71.4 | 2 13/16 | NC46 | 158.8 | 6 1/4 | 145.3 | 127.0 | 117.5 | 585 |
| ZH-JZ35-NC38-Ⅰ | 88.9 | 3 1/2 | 52.39 | 2 1/16 | NC38 | 120.7 | 4 3/4 | 116.3 | 101.6 | 92.1 | 370 |
| ZH-JZ29-NC31-Ⅰ | 73.03 | 2 7/8 | 50.8 | 2 | NC31 | 104.8 | 4 1/8 | 100.4 | 84.1 | 81.0 | 220 |
| II型（单根长度13500mm） | |||||||||||
| ZH-JZ50-NC50-II | 127.0 | 5 | 76.2 | 3 | NC50 | 168.3 | 6 5/8 | 154.0 | 139.7 | 130.2 | 945 |
| ZH-JZ45-NC46-II | 114.3 | 4 1/2 | 71.4 | 2 13/16 | NC46 | 158.8 | 6 1/4 | 145.3 | 127.0 | 117.5 | 790 |
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