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Rotary Drill Pipe

Rotary Drill Pipe

1、Product Features
Rotary drill pipe is a wearing part of rotary drilling rig. HYST has self-developed the pipe used for rotary drilling series, including HG550, HG650 and HG850, which features that good strength and tenacity, wonderful weldability as well as geometric dimension (e.g. OD, WT, out-of-roundness, straightness)with high precision and premium surface quality. It can absolutely compare with the like products abroad.
2、Production Range
OD: 42mm～760mm                      WT: 4mm～120mm
3、Steel Grade and Properties
Technical standard: GB 34109 or technical agreement.
Properties of Steel Pipe
Steel Grade Delivery Condition Yield
（MPa）		 Tensile
（Mpa）		 Elongation
（%）		 R.A.
（%）		 Absorbed-energy
(J)
Not Less Than
Q345B Hot Rolling or Normalization 470 345 20 — 20℃(AKV2) 34
27SiMn Quenching+Tempering 980 835 12 40 20℃(AKU2) 39
30CrMo Quenching+Tempering 930 735 12 50 20℃(AKU2) 71
35CrMo Quenching+Tempering 980 835 12 45 20℃(AKU2) 63
42CrMo Quenching+Tempering 1080 930 12 45 20℃(AKU2) 63
HG550 Quenching+Tempering 650 550 20 — -20℃(AKV2) 34
HG650 Quenching+Tempering 750 650 14 — -20℃(AKV2) 40
HG850 Quenching+Tempering 980 835 12 — -20℃(AKV2) 63
4、  Application Fields
Rotary drill pipe & tube such as 27SiMn、35CrMo、HG550、HG650 and HG850  are mainly applied in combined drill pipe used for manufacturing of rotary drill rig.