Mining Tunneling 3 1/2 INCH API Drill Pipe
Mining Tunneling 3 1/2 INCH API Drill Pipe
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Basic Infomation
Place of Origin: Germany
Brand Name: ROSCHEN
Certification: ISO
Model Number: API Drill Pipe
High Light:

3 1/2 INCH oil hardened drill rod


Tunneling hq drill rod

Payment & Shipping Terms
Packaging Details: steel
Supply Ability: 10000 pcs
Name: API Drill Pipe
Machine Type: Drilling Equipment
Use: Mining Tunneling
Type: Drill Pipe
Application: Marble Quarry,diamond Drilling
Usage: Rock Drilling
Advantage: Competitive Advantage Products
Size: 3 1/2 INCH
Product Description

Mining Tunneling 3 1/2 INCH API Drill Pipe


Drill Pipe Description:

1. Our Drill Pipe are of the highest quality ,are manufactured to exacting specifications using advancing maching technoogy.
2. They are manufactured from seamless steel tube by cold drawn.The material is XJY850/30CrMnSiA which meets the global standard.
3. Drill rods are made from quality heat treated materials which ensure superior strength, wear resistance and toughness in the most demanding applications
4. Rods and casing are manufactured under stringent industry standards, and are field tested under a variety of conditions.
5. All rods are designed to be compatible with other rods manufactured to the standard DCDMA

Drill Pipe Specifications:


Short section of oil pipe Specification (in) Maximum outer diameter(in)(mm) Wall thickness(mm) Steel Grade
Flat External upset
2 3/8 2.375(60.33) 2.594(65.90) 0.190(4.83)   J55
2 7/8 2.875(73.03) 3.094(78.60) 0.217(5.51)  
3 1/2 3.500(88.90) 3.750(95.25) 0.254(6.45)  
Coupling Specification (in) Maximum outer diameter(in)(mm) Minimum length(in)(mm) Steel Grade
Flat External upset Flat External upset
2 3/8 2.875(73.03) 3.063(77.80) 4 1/4"(107.95) 4 7/8"(123.83) J55
2 7/8 3.500(88.90) 3.668(93.25) 5 1/8"(130.18) 5 1/4"(133.35)
3 1/2 4.250(108.00) 4.500(114.30) 5 5/8"(142.88) 5 3/4"(146.05)
Adaptor Different kinds of adaptor connectors of J55' N80' L80 Adaptor Coupling

Drill Pipe Pictures


Mining Tunneling 3 1/2 INCH API Drill Pipe 0

Mining Tunneling 3 1/2 INCH API Drill Pipe 1

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Get in touch with us
Contact Person : Mr. Bill, George, Michael
Tel : 13764195009
Fax : 86-021-54380177
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