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Drill Pipe

Application: Used for Mine, water well drilling, well drilling, coal and fore poling Size:OD: 60.32mm-168.28mm,WT: 6.45-12.7mm,LENGTH: R1, R2, R3 Pipe Standard:API 5DP E75, X95, G105, S135 Upset Style:IU, EU, IEU Connection:NC26 - NC50, 5 1/2FH, 6 5/8FH Internal coating:TK34,TC2000, Arnco 100XT, 200XT, 300XT

Classification :

Oil country tubular goods

WhatsApp : +8615688862221

E-mail : QSsteel@tsingshanh.com

PRODUCT DETAILS

Description

Drill pipes are long tubular sections of pipe that make up the majority of the drill string. They are typically a 31 foot long section of tubular pipe but may be anywhere from 18 to 45 feet in length.

Heavy weight drill pipe (HWDP) is a tubular pipe that adds weight or acts as a transitional piece in the drill string. As a transitional section of the drill string, it is placed between the drill collar and standard drill pipe to reduce fatigue failures. In other applications the HWDP is used as an additional weight to weigh down the drill string.

Heavy weight drill pipe is a medium-weight drilling pipe, (referred standards in API SPEC 7-1). It has bigger wall thickness than common drilling pipe and smaller than drill collar.

Drill collars are a component of the drill string that makes up part of the BHA. They are thicker-walled, heavier, and more rigid than drill pipes and are primarily used to weigh down the drill bit while dampening vibration and impact forces.

Drill Pipe:2-3/8" to 7-5/8" OD, Range 2 and 3

Heavy Weight pipe:2-3/8" to 6-5/8" OD, Range 2 and 3

Drill Collars:2-7/8" to 14"

Grades: E75, X95, G105, S135

Connection threads:NC26, NC31, NC38, NC40, NC46, NC50, 5 1/2FH.6 5/8FH.

Internal Upset: IU, EU, IEU

Specification

Size designation	Calculated weight	Tool joint designation	Calculated weight		grade	Wall thickness		Upset ends
in	Calculated weight	Tool joint designation	1b/ft	Kg/m	grade	in	mm	Upset ends
2 3/8	6.65	NC26	6.26	9.32	E.X.G.S	0.28	7.11	EU
2 7/8	10.4	NC31	9.72	14.48	E.X.G.S	0.362	9.19	EU
3 1/2	13.3	NC38	12.31	18.34	E.X.G.S	0.368	9.35	EU

Packing and shipping

Our company has passed ISO9001 quality management system certification, Our Mill product with CE/EN10204 / ASTM/Classification society certificate/CASO/BIS etc certificate.All the customers give good appreciation to our products.We are glad to be your good partner.

Application Areas

Steel is widely used in steel structure workshops, bridge frames, main structures of high-rise buildings, and infrastructure construction (such as highways, oil and gas pipelines). Its high strength properties ensure load-bearing stability and seismic performance. In ship manufacturing, steel is used to build hull structures, decks, and internal components. Hot-rolled coils rely on their load-bearing capacity to adapt to harsh environments. ‌

CUSTOMER FEEDBACK

Exporting our products to more than 100 countries and regions worldwide.All the customers give good appreciation to our products.We are glad to be your good partner. Warmly welcome you to visit our factory!

FACTORY WORKSHOP

Factory workshop

APPLICATION FIELD

Construction Project

Marine Exploration

Automobile Manufacturing

Architectural Engineering

Aerospace

Solar Energy

FAQ

Q: Do you support custo

A: Yes. We provide one-stop deep processing services, including slitting, flattening, cutting, bending, welding, polishing, drilling, hot-dip galvanizing and color coating. Custom sizes, special thicknesses and surface treatments are all acceptable.

Q: Can you provide third-party inspection reports?

A: Yes. We support SGS, BV, TUV and other third-party inspections. Each batch is equipped with official factory MTC mill test certificate, chemical composition and mechanical property reports.

Q: How to choose the right steel grade for my project?

A: Carbon steel is suitable for general structure and fluid transportation; galvanized/color coated steel for anti-rust building enclosure; stainless steel for corrosion-resistant, sanitary and marine environments. Our professional sales team can recommend the most cost-effective solution according to your usage scenario, temperature, corrosion environment and load requirements.

Q: What standards do your steel products comply with?

A: All products support international mainstream standards, including GB, ASTM, AISI, JIS, DIN, EN. Common grades such as Q235B, Q355B, 20#, 45#, 304, 316L, 430 are fully available and can meet global engineering and procurement standards.

Q: What steel products do you supply?

A: We provide a full range of steel materials, including carbon steel, stainless steel, galvanized steel, color coated steel, steel plates, steel coils, steel pipes and customized steel profiles. Products are widely used in construction, machinery, petrochemical, shipbuilding, automobile and engineering fields.

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