API 5DP 2 7/8" drill pipes,3 1/2" oil drill pipe for oil drilling Product Description Seamless 2 7/8 " drill pipe for oil drill E75/ G105/ S135 drill pipe,manufactured as per API 5DP,parameter as below: Detailed Photos Product Process Authorized by ISO 9001, NS-1 and Russia GOST RTN . it is able to process drilling tools according to standard DS-1 under a full system of production design and quality control.. our drill pipes have been tested by the third party, such as China national petroleum pipe research insititue and Russia petroleum pipe quality control center, the quality is stable and reliable. Manufacturing Technique
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Drill pipe, tool joint raw material The material adopts high-performance alloy steel according to USA API standard and strictly checked by chemical content, metallographic structure, geometric dimension, NDT tests etc to ensure the stable quality of the products. |
| Process of drill pipe body Pipe end is upsetted by USD National Oil Well equipment with 1250tons weight. heating treatment is process by oven-type automatic furnace, then straigtened by 6 rollers straigtening machine, whole courese hardness test and ultrasonic inspection. |
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Tool joint process Tool joint is processd by 1500T gaint pressure forging machine to ensure the quality of joint for high compactness, cleanness, hard wear resistance, homogenization of excellent mechanical performance. |
| process of friction welding Adopts USA MTI equipment for friction welding, automatic computer control, heat treatment, grinding, magnetic particle inspection to guarantee high quality of the finish products. |
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Process of hardbending Arnco, TCS TI, LW600 are available according to customer requirement. the finished hardbending processes with high hardness nd non-cracking character. |
| Process of internal coating Our internal coating varieties are LPC1000, LPC3000, LPC5000, LPC5000P etc. we can aslo be outsourced processing TK34, DPC, TC2000 series of internal coating. |
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Packaging & Shipping Company Profile Hunan Hengan Weiye Metal Products Co., LTD is subordinate to Hengan Weiye Steel Pipe Co., LTD. After more than 10 years of development, the company has become a leading enterprise in the industry, with more than ten thousand tons of stock, with processing bases in Guangzhou, Tianjin, Hubei and other provinces. Main business: seamless steel pipe, fine drawing pipe, drill pipe special steel pipe, steel plate, galvanized products, stainless steel series, and production and processing. Under the support and care of friends and Allies from all walks of life, after years of development, the company's performance continues to expand, the annual sales has exceeded 150 million. At present, it has become a special agent dealer of well-known domestic steel enterprises. Under the situation of fierce market competition, the company has the courage to open up and innovation. At present, the company provides steel projects all over the world. FAQ Q: Are you a manufacturer? A: Yes , we are a manufacturer, We have own factory, trading is also our main business Q:Can we visit your factory ? A:Warmly welcome once we have your schedule we will pick you up . Q: Do you have quality control? A: Yes, we have gained API, ISO authentication. Q: Can you arrange the shipment? A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service. Q: How long is your delivery time? A: Generally it is 7-14 days if the goods are in stock. or it is 25-45 days if the goods are not in stock, it is according to quantity. Q:Can we get the some samples?Any charges? A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost. MORE PRODUCT
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