1. <dfn id="nuxhr"><rp id="nuxhr"></rp></dfn>

      
      
      <object id="nuxhr"><button id="nuxhr"></button></object>

      <acronym id="nuxhr"><th id="nuxhr"></th></acronym>
      探花色,人妻影音先锋啪啪av资源,日韩精品人妻中文字幕,精品国产精品国产偷麻豆,国产精品无码专区av在线播放 ,亚洲激情av一区二区三区,亚洲精品综合网二三区,亚洲国产综合性亚洲综合性

      Products & services

      Hilong Arctic Service Drill Pipe

      Product Introduction 

      Hilong arctic service drill pipe is a type of proprietary drill pipe with capability to perform in extreme cold regions. Service temperature - 60 ℃ and above.

      Product Advantage

      Compared to conventional API drill pipe, Hilong's proprietary Arctic Service Drill Pipe has a higher low temperature impact value and a lower brittleness transition temperature, resulting in better resistance to brittle fracture. Apparently, these arctic service products have better Fracture and fatigue resistance than normal API series if both of them are all used in room temperature, thus the service life could be improved evidently.

      Product Specification

      (a)Size Range: Including all API size from 2 3/8 to 6 5/8 inches;
      (b)Steel Grade: HLDT-AS®75、HLDT-AS®95、HLDT-AS®105、HLDT-AS®135.

      Product Performance

      The mechanical requirements of different grades showed in the table, and the figures show the impact energy in different temperatures of HLDT-AS®135 drill pipe and the tool joint respectively: