What steel grades are available for the drill pipe?

Available grades include E, X-95, G-105, and S-135 based on API SPEC 5DP requirements.

What is the warranty period for the product?

We provide a 12-month warranty for the drill pipe.

What is the size range of the drill pipes?

The standard pipe size range is from 2-3/8 inch to 6-5/8 inch.

API Rotary Drill Pipe 3 1/2" Reg Pin - Box for Drilling

Name: API Rotary Drill Pipe 3 1/2" Reg Pin - Box for Drilling
Brand: Dongying Kenli Jinxiu Petroleum Machinery Co., Ltd
SKU: 2006465922

Shandong, ChinaDongying Kenli Jinxiu Petroleum Machinery Co., Ltd

US$50.00-300.00

1 Piece

Product profile

Customization

Available

After-sales Service

Online Service

Warranty

12 Months

Model NO.

Drill Pipe

Manufacturing Process

Forging

Surface Treatment

Spray-Paint

Operation Pressure

Atmospheric Pressure

Material

Cast Steel

Length

R1 R2 R3

Pin and Box

If Nc

Standard

API 7-1 5dp

Other

Hard Banding

Coating

Internal Plastic Coating Dpc

Size Range

2-3/8inch~6-5/8inch

Transport Package

Iron Frame, Wooden Box

Specification

CUSTOM MADE

Trademark

JX PETRO

Origin

China

HS Code

84314310

Production Capacity

1500 Piece/Pieces Per Month

Key features

API Compliant Quality: Drill pipes comply with API SPEC 5DP and API SPEC 7-1 standards for reliability.

Extended Service Life: Hardbanding reduces wear rate to less than 6% of bare tool joint, extending life 3 times.

Multi-Grade Options: Available in Grade E, X-95, G-105, and S-135 to meet specific drilling requirements.

Wide Size Range: Standard pipe sizes range from 2-3/8 inch to 6-5/8 inch for versatile applications.

Friction Reduction: Reduces casing wear to less than 11% of bare tool joint and lowers drilling string torque.

Global Application: Widely used in oil, gas, water wells, and geothermal fields across multiple countries.

Customizable Features: Logo, color, length, pin/box type, and coating can be customized per customer request.

Professional Support: Online after-sales service and fast delivery ensure continuous operational support.

Company profile

Dongying Kenli Jinxiu Petroleum Machinery Co., Ltd

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2022-09-05 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.11h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryJX PETRO is a China-based factory and limited company founded in 2005, specializing in petroleum drilling and production equipment. The supplier reports API certification, ISO9001, ISO14001, and ISO45001 certifications, six production lines, professional processing and testing equipment, and a manufacturing facility of 11,000–18,000 square meters as reported in different slices. Its product range covers sucker rods, mud pumps, well control and wellhead equipment, downhole tools, handling tools, and rig accessories. The supplier has self-operated import and export rights, but exports reportedly account for only 1%–10% of sales and its primary market is domestic. Evidence supports manufacturing capability, certification, and some R&D activity, including six national patents. No sufficient evidence is provided regarding after-sales service systems, customization capability, or specific customer cases. Financial assessment is limited because financial figures are excluded.

Supplier typeThe supplier is explicitly identified as a factory and as a limited company engaged in manufacturing and supplying petroleum drilling and production equipment. Its stated establishment year is 2005, and its operations are located in Shandong, China.

CertificationsThe supplier states that it holds API certification and ISO9001:2015, ISO14001:2015, and ISO45001:2016 certifications covering quality, environmental, and occupational health and safety management. These certifications provide explicit evidence of formal management-system and product-certification coverage.

R&D capabilityThe supplier reports investment in production technology R&D and talent development, 15 professional and technical personnel, three years of R&D engineer experience, and six national patents. These statements explicitly support the existence of R&D and patent activity, although the scope and commercial impact of the innovations are not detailed.

Production capacityProduction capability is supported by six production lines, 26 large-scale processing machines, more than 20 testing devices, and a reported manufacturing area of 11,000 square meters in one slice and 18,000 square meters in another. The supplier also reports 50 production workers in its company description, while another slice lists 35 total employees, indicating inconsistent workforce data that should be verified.