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Quarter Drill Pipe

Estimate pricingPrice on request
MaterialAISI 4145H modified alloy steel
Heat TreatmentQuenched and tempered full length
Brinell Hardness285-341
StandardsAPI Spec 7-1, SY/T 6509-2000

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Supplier based in ChinaOn Global Trade Plaza since Oct 2026Similar products from other sellers

Products Description

Kelly is the drive part of whole drill stem, it has two types, square kelly and hexagonal kelly and all of them are manufactured comfort to API Spec7-1 and SY/T6509-2000 criterion. OurÃ?Â Square& Hexagonal kelly are made from AISI 4145H modified alloy bars that are quenched and tempered full length. After such heat treatment, its brinell hardness can reach 285-341. Kelly end, drive cross-section and joint are all processed and tested comform to API criterion.

Product Categories

Drilling Machines & Tools

Products Specification

MaterialAISI 4145H modified alloy steel
Heat TreatmentQuenched and tempered full length
Brinell Hardness285-341
StandardsAPI Spec 7-1, SY/T 6509-2000

Supplier information

Basic member

Metalwork Petroleum Technology Co, Ltd.

China

Business type - Contact Seller

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The quarter drill pipe is offered in square and hexagonal kelly configurations, both manufactured to API Spec 7-1 and SY/T 6509-2000 standards. The units are produced from AISI 4145H modified alloy bars that undergo full-length quenching and tempering.

After heat treatment the Brinell hardness ranges from 285 to 341. The kelly end, drive cross-section and joint are all processed and tested in accordance with API criteria.

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The seller has not added a specification yet; ask for the data sheet or test certificate. Ask Metalwork Petroleum Technology Co, Ltd. for a firm quote and delivery terms before you order.

About Supplier

Metalwork Petroleum Technology Co, Ltd. is a B2B supplier based in China, listed on Global Trade Plaza since October 2026. Use Inquire now or Chat with supplier to ask Metalwork Petroleum Technology Co, Ltd. for prices, specifications and documents for Quarter Drill Pipe.

Supplier Details for Quarter Drill Pipe

Member since - Oct 2026
Business Type - Contact Seller
Deals in Product Type - Drilling Machines & Tools
Country - China

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Metalwork Petroleum Technology Co, Ltd., a B2B supplier from China, dispatches Quarter Drill Pipe primarily through the port at China. Packaging types (e.g., bulk, custom, eco-friendly) and estimated pricing may vary based on order volume and destination. To get detailed logistics and pricing information, use Get a quote or Chat with supplier, or Sign Up for direct supplier interaction.