What steel grades are used for the drill pipe?

Steel grades include STM-R780, R780, G105, and S135.

Water Well Borehole Drill Pipe Drilling Rod

Name: Water Well Borehole Drill Pipe Drilling Rod
Brand: Shijiazhuang Weilida Prospecting Machinery Co., Ltd.
SKU: 1995888015

Hebei, ChinaShijiazhuang Weilida Prospecting Machinery Co., Ltd.

US$138.00-500.00

20 Pieces

Sample price:US$138.00/piece.Request sample

Product profile

Customization

Available

Standard

Ios

Length

1-6m

Usage

Oil Mining, Well Drilling

Material

Carbon Steel

Product Name

Friction Welding Water Well Drill Pipe

Diameter

89mm/3.5"

Thread

API Nc38

Tool Joint Diameter

121mm

Production Tachnology

Friction, Nitriding, Upsetting

Application

Mining, Drilling

Steel Grade

R780/G105/S135

Transport Package

Boundle

Specification

76mm/3"

Trademark

Weilida / none

Origin

China

HS Code

8431431000

Production Capacity

5000000

Key features

Advanced Friction Welding: High bending strength and firm welding via advanced friction welding technology.

High Fatigue Resistance: Ensures long service life and straightness requirements during deep hole drilling.

Wide Application Scope: Suitable for mining, drilling, anchoring, and construction in various projects.

Quality Certified: Passed CQC and ISO9001 certifications ensuring product safety and reliability.

Customizable Specifications: Can produce various specifications of drill pipes according to customer requirements.

Professional Manufacturer: 20000 sqm factory with advanced equipment and physical/chemical testing machines.

Company profile

Shijiazhuang Weilida Prospecting Machinery Co., Ltd.

Hebei, China

Business Type: Manufacturer/FactoryExport Year: 2022-06-20Nearest Port: TianjinAverage Response Time: ≤7.28hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryShijiazhuang Weilida Prospecting Machinery Co., Ltd. is identified as a Chinese manufacturer/factory and limited company producing drill pipes, drilling tools, drill rigs, and related components. Evidence indicates an established operation founded in 1988, with an approximately 13,000-square-meter factory, 80 employees, three production lines, CNC and friction-welding equipment, and testing capability. The supplier reports ISO 9001 and ISO 14001 certifications, export capability, broad international markets, and stated lead times of within 15 workdays off-season and one month during peak season. It can produce multiple national and international standard specifications and design special products to customer requirements. However, the provided information does not substantiate after-sales service processes, customer case references, or financial credibility. Innovation capability is supported only by limited evidence of R&D personnel and product-design activity.

Supplier typeThe supplier is described as both a trade company in one record and a Manufacturer/Factory in another. Its product, factory, address, and business descriptions consistently support that it operates as a manufacturing supplier specializing in drilling machinery and tools, although the records contain a classification inconsistency.

CertificationsThe supplier reports ISO 9001 and ISO 14001 management-system certifications. Its company description also states that a quality management system was established in accordance with ISO 9001 and is operated through formal personnel training.

R&D capabilityThe supplier reports 6–10 years of total R&D engineer experience and states that it can design and manufacture special drill-pipe and drilling-tool specifications. It also describes efforts to enhance product technical content, providing positive but limited evidence of innovation capability.

Production capacityProduction capability is supported by three production lines, a 13,000-square-meter modern factory, 80 employees, CNC lathes, friction-welding and pipe-end processing equipment, complete production facilities, and a product range covering drill pipes, drilling tools, rigs, and related components. The supplier also reports quality-control personnel and broad export-market coverage.

Customization capabilityThe supplier explicitly states that it can manufacture various national, Russian, American, and European standard products and can design and produce special specifications according to customer needs. It also indicates that mechanical-performance testing of drilling tools can be conducted as required.