What is the lead time?

Peak season lead time is one month, and off-season lead time is also one month.

What is the warranty period?

We provide a two-year warranty for our products.

API Spec7 4145h Well Integral Mod Slick Spiral Drill Collar for Drilling String

Name: API Spec7 4145h Well Integral Mod Slick Spiral Drill Collar for Drilling String
Brand: Dongying Tianrui Petroleum Technology Co., Ltd.
SKU: 2074081432

Shandong, ChinaDongying Tianrui Petroleum Technology Co., Ltd.

US$1,600.00

1-99 Pieces

US$900.00

100+ Pieces

Sample price:US$1600.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Repair

Warranty

Two Years

Model NO.

Drill Collar

Manufacturing Process

Forging

Surface Treatment

Polishing

Operation Pressure

Atmospheric Pressure

Material

Alloy

Color

Red/Bule/Customize

Diameter

4 1/2"-20"

Connection

API, Reg ,Fh, If ,Nc,Tx39 etc

Magnetic Material

P530 ,P550

Non Magnetic Material

AISI 4154h

Available

Drill Collar Available

Groove

Stress Reflief Groove

Application

S: Energy & Mining,Well Drilling,Metallurgy Llury

Transport Package

Standard Export Package

Specification

API Spec 7-1

Trademark

Origin

Shandong Dongying

HS Code

8431431000

Production Capacity

5000 PCS/Year

Key features

API Spec7-1 Compliance: Manufactured strictly according to API Spec7-1 and SY5411/SY5144 standards.

Customizable Dimensions: Diameter customizable from 4 1/2 to 20 inches with various connection types.

Color Customization: Available in Red, Blue, or fully customized colors based on client requests.

Two-Year Warranty: Comprehensive two-year warranty coverage for all mechanical equipment.

Spiral Design: Reduces contact area to efficiently avoid bit sticking from differential pressure.

Hardbanding Option: Optional hardbanding available at customer requests for enhanced durability.

Non-Magnetic Material: Utilizes AISI 4154h non-magnetic material for optimal resistance to stress.

Elevator and Slip Grooves: Grooves made on box thread face for use as lifting sub and safety slip.

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: ≤0.94h

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.

Product Q&A

Q:How do you guarantee quality?

Pre-production samples are always available before mass production; final inspection is always carried out before shipment.

Q:What services can you provide?

Accepted delivery conditions include FOB, CIF, FAS, DDP, and express. Payment currencies include USD, AUD, Euro, and RMB. Payment types include T/T, L/C, MoneyGram, credit card, PayPal, Western Union, and cash.

Q:What is the after-sales service?

We provide 24-hour online maintenance guidance service.

Q:What languages are supported?

English, Chinese, and other languages are supported.

Q:Is customization available?

Yes, customization options include samples, designs, full customization, minor customization, and flexible customization.