What after-sales services are provided?

We offer 24-hour online maintenance guidance service and pre-production sample checks.

What is the delivery term?

Accepted delivery conditions include FOB, CIF, FAS, DDP, and express delivery.

API 7-1 Ordinary Drilling String Petroleum Non Magnetic Drill Collar

Name: API 7-1 Ordinary Drilling String Petroleum Non Magnetic Drill Collar
Brand: Dongying Tianrui Petroleum Technology Co., Ltd.
SKU: 2069328042

Shandong, ChinaDongying Tianrui Petroleum Technology Co., Ltd.

US$1,100.00

1-99 Pieces

US$800.00

100+ Pieces

Sample price:US$1100.00/piece.Request sample

Product profile

Customization

Available

Customized

Surface Treatment

Polish

Model NO.

Drill Collar

Type

Non-magnetic Drill Collar

Standard

AISI

Usage

Oil Mining, Coal Mining, Well Drilling, Ore Mining

Material

Alloy

Color

Red/Bule/Customize

Diameter

4 1/2"-20"

Connection

API, Reg ,API, If ,Nc

Magnetic Material

P530 ,P550

Non Magnetic Material

AISI 4154h

Transport Package

Standard Export Package

Specification

customizable

Trademark

Origin

Shandong Dongying

HS Code

8431431000

Production Capacity

5000 PCS/Year

Key features

Non-Magnetic Material Options: Available in P530, P550, and AISI 4154H for specific magnetic requirements.

Customizable Dimensions: Diameter ranges from 4 1/2" to 20" with customizable connections like API, REG, IF, and NC.

API 7-1 Compliance: Manufactured strictly according to API Spec 7-1 and SY5411/SY5144 standards.

Enhanced Durability: Cold rolled finish on ID/OD surfaces ensures optimal resistance to stress, corrosion, and cracking.

Spiral Design Options: Spiral drill collars reduce contact area to avoid bit sticking from differential pressure.

Optional Hardbanding: Hardbanding can be applied at customer requests for enhanced wear resistance.

OEM/ODM Support: Full customization, minor customization, and flexible customization services available.

100% Quality Inspection: Strict visual inspection and pre-production samples ensure consistent quality before shipment.

Company profile

Cooperated with Fortune 500High Repeat Buyers ChoiceImporters and Exporters

Dongying Tianrui Petroleum Technology Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Qingdao PortAverage Response Time: ≤0.79h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier with 3D software design and multiple customization options. Its business covers petroleum machinery, hydraulic components, mechanical equipment services, electrical equipment, instruments, chemical products, and camping houses. Quality and sustainability credentials include ISO9001:2015, ISO45001:2018, and ISO14001, while documented quality procedures, raw-material traceability, and two inspectors support basic quality control. The supplier has in-stock capacity, a one-month average lead time in both peak and off-season, and 12 qualified service-capability suppliers. However, it lacks an available SDK, valid manufacturing-capacity contracts with factories or related subcontractors, overseas warehouses, overseas showrooms, overseas agents or branches, and offline trade-show experience. Corrective-action and complaint procedures exist but lack written records. Financial information is represented only by reporting years, so financial...

Supplier typeThe supplier is explicitly identified as a professional technical supplier. Its stated scope includes petroleum machinery and accessories, hydraulic components, mechanical equipment services, electrical equipment, instruments, and related products, indicating a technically oriented industrial supplier.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, and ISO14001 certifications, and earlier company information states that quality, environmental, and occupational health and safety management system certifications were obtained in 2014. These records provide explicit evidence of certification holdings.

R&D capabilityThe supplier is described as having professional technical R&D capability and can provide 3D software design services, which supports design and technical development capability. However, no SDK is available, indicating a limitation in SDK-based development or integration.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. The same range is supported in the design-services capability record, providing clear evidence of broad customization capability.