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The world's strongest ultra-deep water drilling platform—Blue Whale One

Chinese first state-owned deep-water gas field——Linshui17-2 gas field

The world's longest sea-crossing bridge——Hongkong-Zhu hai-Macao Bridge

The first deep well on land in Asia——Luntan Well One

The world's first R-55D type of self-elevating drilling platform

The most challenging drilling conditions' oilfield——Tarim field

The biggest earth pressure balance shield in the world

The world's biggest convention and exhibition center——Shenzhen international Convention and Exhibition Center

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HS Premium Connection,Non API OCTG,Pipe For Ship and vessel

Product List

Mechanical Engineering Pipe

Production Range
OD: 42mm～760mm
WT: 4mm～120mm

Steel Grade and Properties
Applicable specification: API 5CT, ASTM A519, NACE MR0175, GB/T 8162 or user’s agreement.

Steel Grade	Properties of Steel Pipe
Steel Grade	Yield （MPa）	Tensile （Mpa）	Elongation （%）	Hardness (HRC)	Absorbed-energy (AKV2/J)
55ksi	379～552	≥ 655	≥16	—	Implement in accordance with API 5CT Specification
80ksi	552～655	≥ 655	≥ 16	≤ 23.0HRC
95ksi	655～758	≥ 724	≥ 15	≤ 25.4HRC
110ksi	758～965	≥ 862	≥ 13	28～34 HRC
125ksi	862～1034	≥ 931	≥ 12	28～36 HRC
135ksi	931～1068	≥ 931	≥ 12	28～38 HRC
Remarks: 1. Property requirements for steel grade of 4130, 4140, 42CrMo shall be negotiated by both parties. 2. Supply steel pipe with the relevant properties required by the clients.

Application Fields
Petroleum mechanical processing pipe can be applied to machining accessories for well drilling and well completion tools, power drilling tools used under the well，suspension sealing & isolation systems，wellhead system devices and other oil-field service products.