Drill Pipe
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Drill Pipe
 
 
 
 
Drill Pipe

Scope of Products:
Drill Pipe:
Size: 2 3/8” -6 5/8”
Grade:
API E75, X95, G105, S135; Sour Service HL95SS, HL 105SS
HWDP:
Size: 3 1/2”-6 5/8”
Tube Material: ANSI 1340H, 37Mn5
Tool Joint Material: 4145H
Tool Joint:
Size: NC26 – NC50, 51/2FH, 6 5/8FH,
Material: 4137H, 4145H, Sour Service HLTJ110SS
Double Shoulder Tool Joint:
Size: HLDS26 – HLDS50, HLDS512, HLDS658
Material: 4137H, 4145H, Sour Service HLTJ110SS
Drill Collar:
Size: NC23 – 31 to NC50 – 72
Material: 4145H

High quality in metallurgy, high purity in material, uniform in chemical composition; good in material harden ability, uniform in heat treatment, stable in performance, and good in impact toughness; advanced upsetting process is adopted to bring a high quality in drill pipe upsetting; internal upset taper is smooth and uniform with long MIU and big radius in vanishing point. The stress concentration factor is small at upsetting vanishing area; the inertia friction welding is adopted with a result of superior welding quality; precision of drill pipe dimension is high.

 
 

Drill pipe as per API 5D


Tube Mechanical Propertie
Grade
Yield Strength
Tensile Strength
Elongation
Impact Energy Min
Min.
Max.
Min.
Max.
Min
Ksi (MPa)
Ksi (MPa)
Ksi (MPa)
Ksi (MPa)
%
*LB-FT(J)
E-75
75 (517)
105 (724)
100 (689)
--
API
52 (70)
X-95
95 (655)
125 (862)
105 (724)
--
52 (70)
G-105
105 (724)
135 (931)
115 (793)
--
52 (70)
S-135
135 (931)
165 (1138)
145 (1000)
--
52 (70)

 

Tool Joint Mechanical Properties
Type
Yield Strength
Tensile Strength
Elongation Min
*Hardness
*Impact Energy Min
Min.
Max.
Min.
Max.
Ksi(MPa)
Ksi(MPa)
Ksi(MPa)
Ksi(MPa)
%
HB
LB-FT(J)
API
120(827)
--
140(965)
--
API
293 - 331
52 (70)

 

Weld Zone Mechanical Properties
Grade Tensile Properties Impact Energy
Yield Strength Tensile Strength Elongation Ave. Min. Single Min. Ave. Max. Single Max.
MPa MPa %
E ≥517 ≥689 ≥13 40 30 35HRC 37HRC
X ≥609 ≥712 ≥13 40 30 35HRC 37HRC
G ≥655 ≥724 ≥13 40 30 35HRC 37HRC
S ≥724 ≥793 ≥13 40 30 35HRC 37HRC

 

Weld HWDP Mechanical Properties
Grade Yield Strength Tensile Strength Elongation Hardness Impact Energy Min.
Min. Max. Min. Max. Max. Min.
Ksi(MPa) Ksi(MPa) Ksi(MPa) Ksi(MPa) % HRC LB-FT(J)
Tube 55(379) -- 95(655) -- 18 -- -- 40 (55)
Tool Joint 110(758) -- 140(965) -- 13   285HB 40 (55)
Weld Zone 55(379) -- 95(655) -- 13 37 -- 20 (27)
 
ADD:SUITE907, 6 BUILDING, 19 CHUANGYE STREET, TAIYUAN NATIONAL HIGH-TECH INDUSTRIAL DEVELOPMENT ZONES,TAIYUAN, SHANXI, CHINA
TEL:0086-351-5600630, 5600631; E-mail: worgxp@sxyixing.com; CONTACT:MR GUO XIAOPING