50mm Drill Pipe for Coal Mine Drilling, Smooth Drill Pipe, Drill Pipe

• After-sales Service: 6 Months for Machinery Warranty
• Warranty: 6 Months for Machinery Warranty
• Certification: ISO 9001:2000
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: 50mm
• Standard: API
• Surface Treatment: Without Processing
• Manufacturing Process: Forging
• Material: R780
• Transport Package: Bundling
• Specification: 50*1000-3000
• Trademark: YIKUANG
• Origin: China Shandong Linqing City
• Production Capacity: 50000pieces/Month
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 10.000kg

Product Description

50mm High pressure sealed smooth drill pipe 1m/1.5m/2m/3m/2.5m

Product Application

Material of rod body: geological alloy pipe
Material of connector: first-class alloy constructional steel Craft: thermal refining in vacuum, which greatly improves the fatigue resistance and shearing strength.
Rod body craft: friction welding, which improves the bending strength, the firmness of the drill rod as well as the lifetime.
 

SPECIFICATIONS
No.	Diameter(mm)	length	Thread type	Craft	Connection  type
1	34	500~3000	Tapper thread	Friction welding	Box/pin
2	42	500~3000	Tapper thread	Friction welding	Box/pin
3	50	500~3000	Tapper thread	Friction welding	Box/pin
4	63.5	500~3000	Tapper thread	Friction welding	Box/pin
5	73	500~3000	Tapper thread	Friction welding	Box/pin
6	89	500~3000	Tapper thread	Friction welding	Box/pin
7	35	500~3000	Square inside thread	Cutting thread	connector
8	42	500~3000	Square inside thread	Cutting thread	connector
9	50	500~3000	Square inside thread	Cutting thread	connector
10	60	500~3000	Square inside thread	Cutting thread	connector