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Home  /  Product Center  /  Drill Pipe Series  /  general-purpose drill pipe for mining
general-purpose drill pipe for mining
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Drill Pipe Series

general-purpose drill pipe for mining

Made from high-quality, high-strength alloy steel, this universal drill pipe is specifically designed for complex and varied mining environments. It boasts excellent wear resistance and impact resistance, and is fully compatible with mainstream down-the-h

Expert Support / OEM Customization : We can provide non-standard sizes and designs based on specific geological conditions.
Blueprint
Stable & Durable
Factory Direct
CNC Machining
Technical Support
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TECHNICAL DATA

Product Specifications

Φ64

Outside diameter (A) Φ64
Pin thread type (P) 2"NG
Box thread type (B) 2"NG
Bore size (A2) Φ25
Bore size (A3) Φ25
Wrench square size (E) 40mm
Wrench square size (G) 40mm
Effective length (E) 1500mm-3000mm
Tube wall thickness (T) 5mm
Φ64 CAD Schematic

Φ76

Outside diameter (A) Φ76
Pin thread type (P) API 2 3/8REG
Box thread type (B) API 2 3/8REG
Bore size (A2) Φ30
Bore size (A3) Φ30
Wrench square size (E) 50mm
Wrench square size (G) 57mm
Effective length (E) 1500mm-3000mm
Tube wall thickness (T) 4mm or 5mm or 6.3mm or 7.5mm or 10mm
Φ76 CAD Schematic

Φ89

Outside diameter (A) Φ89
Pin thread type (P) API 2 3/8REG
Box thread type (B) API 2 3/8REG
Bore size (A2) Φ30
Bore size (A3) Φ30
Wrench square size (E) 50mm
Wrench square size (G) 70mm
Effective length (E) 1500mm-3000mm
Tube wall thickness (T) 4mm or 6.5mm or 7.5mm or 8.5mm or 9mm or 9.5mm or 10mm
Φ89 CAD Schematic

Φ102

Outside diameter (A) Φ102
Pin thread type (P) API 2 7/8REG
Box thread type (B) API 2 7/8REG
Bore size (A2) Φ34
Bore size (A3) Φ40
Wrench square size (E) 50mm
Wrench square size (G) 85mm
Effective length (E) 1500mm-3000mm
Tube wall thickness (T) 6.5mm or 8mm or 8.5mm or 9.3mm
Φ102 CAD Schematic

Φ114

Outside diameter (A) Φ114
Pin thread type (P) API 3 1/2REG
Box thread type (B) API 3 1/2REG
Bore size (A2) Φ40
Bore size (A3) Φ50
Wrench square size (E) 50mm
Wrench square size (G) 95mm
Effective length (E) 1500mm-3000mm
Tube wall thickness (T) 6.5mm or 8mm or 8.5mm or 9mm
Φ114 CAD Schematic

Φ127

Outside diameter (A) Φ127
Pin thread type (P) API 3 1/2REG
Box thread type (B) API 3 1/2REG
Bore size (A2) Φ40
Bore size (A3) Φ50
Wrench square size (E) 50mm
Wrench square size (G) 105mm
Effective length (E) 1500mm-3000mm
Tube wall thickness (T) 6.5mm or 9mm
Φ127 CAD Schematic

Φ140mm

Outside diameter (A) Φ140mm
Pin thread type (P) API 4 1/2REG
Box thread type (B) API 4 1/2REG
Bore size (A2) Φ60
Bore size (A3) Φ60
Wrench square size (E) 60mm
Wrench square size (G) 121mm
Effective length (E) 1500mm-3000mm
Tube wall thickness (T) 9mm
Φ140mm CAD Schematic

Product Details

general-purpose drill pipe for mining

Wrench Across Flats
40mm
Effective length (E)
1500mm-3000mm
Outside diameter (A)
Φ64
Pin thread type (P)
2"NG
Box thread type (B)
2"NG
01

Structure

Φ64 Product structure drawing
Φ64 Product structure drawing
1Outside diameter (A)
Φ64
2Pin thread type (P)
2"NG
3Box thread type (B)
2"NG
4Bore size (A2)
Φ25
5Bore size (A3)
Φ25
02

Compatibility

Outside diameter (A)
Φ64
Pin thread type (P)
2"NG
Box thread type (B)
2"NG
Bore size (A2)
Φ25
Bore size (A3)
Φ25
Wrench square size (E)
40mm
PRODUCT SUPPORT

Build the right drilling solution around this product.

Tell us your working condition, target quantity, and delivery plan. We will match the model, technical document, and quotation path for your project.

Engineer-assisted selection

01How does Kaiyue control the raw material quality of general-purpose drill pipe for mining?

All steel materials are purchased from qualified large steel mills, and each batch is inspected after arrival before it is released for production.

02What steel is used for the body of general-purpose drill pipe for mining?

Body material is selected for the specific model, connection, and working conditions, and must match the approved product specification and quality records.

03Why are the pipe ends of general-purpose drill pipe for mining upset and thickened?

The upset ends increase the friction-welding contact area, helping improve joint strength and reduce the risk of connection fracture.

04How are the friction-welded areas of general-purpose drill pipe for mining treated?

All friction-welded areas are tempered after welding to reduce internal stress and improve long-term structural stability.

05What material is used for the coupling of general-purpose drill pipe for mining?

Coupling material and heat treatment are selected for the specific model and operating conditions and must match the approved product specification and inspection records.

06How is the coupling hardness verified?

Core and surface hardness must be tested against the inspection specification for the corresponding model. The approved technical document and batch quality record define the applicable range.

PRODUCT SUPPORT

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Add this product to your inquiry list, then send one request with quantity, application, and destination. The sales and technical team can respond with clearer pricing and configuration advice.

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