What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, and Western Union.

What is the lead time for production?

The average lead time is one month for both peak and off-peak seasons.

Do you provide inspection certificates?

Yes, an inspection certificate is provided including mechanical properties, chemical analysis, and inspection results.

2 Welded Heavy Weight Drill Pipes

Name: 4145h Mod / 1340 Od 3 1/2 Welded Heavy Weight Drill Pipes
Brand: Hunan Shunfu Metal Material Co., Ltd.
SKU: 2097538865

Hunan, ChinaHunan Shunfu Metal Material Co., Ltd.

US$1,300.00-1,900.00

1 Ton

Sample price:US$80.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Technical/Sample/Quality

Manufacturing Process

Forging

Model NO.

4145H

Surface Treatment

Coating

Operation Pressure

Atmospheric Pressure

Material

Alloy

Threads 1

Nc38

Threads 2

Nc40

Threads 3

Nc46

Threads 4

Nc50

Threads 5

5 1/2 Fh

Threads 6

6 5/8 Fh

Transport Package

Steel Frame

Specification

3-1/2 OD to 6-5/8

Trademark

SHUNFU

Origin

China

Key features

Premium Alloy Steel Material: Manufactured from AISI 4145H Mod alloy steel with full-length quenching and tempering.

API Spec Compliance: Meets API Spec 7-1, NS-1, and DS-1 mechanical properties for all heavy weight drill pipes.

Comprehensive Quality Control: Includes ultrasonic inspection, hardness testing, and detailed inspection certificates.

Corrosion Resistant Coating: Connections are phosphatized and coated with API thread compound to prevent galling.

Customizable Hardbanding: Standard raised hardbanding with optional flush application and various tungsten carbide types.

High Torque Connection Option: High torque connections available on request for enhanced performance.

Blank Ended Delivery: Heavy weight drill pipes can be delivered blank ended to meet specific requirements.

OEM and ODM Services: Full customization available from samples or designs with dedicated R&D support.

Company profile

Fast DeliveryLow MOQExperienced Team

Hunan Shunfu Metal Material Co., Ltd.

Hunan, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 7 years CertifiedNearest Port: shanghai portAverage Response Time: ≤18h

AI-Powered supplier vetting

SummaryHunan Shunfu Metal Material Co., Ltd. is a limited company supplying steel pipe, with 24 employees and stated annual output of 100,000 tons of oil steel products. It provides OEM and ODM services and can customize from samples or designs, but it does not provide 3D software design, has no SDK, and launched no new products in the past year. Export sales represent 71%–90% of total sales, with Southeast Asia and the Middle East identified as primary markets; however, it reports no overseas showroom, agents, branches, or offline trade-show participation. Lead time is one month in both peak and off-peak seasons. The available audit record identifies SGS as the auditor, but the stated audit result is 0 and no certification is identified. Quality and service governance evidence is weak because written procedures or records are absent for supplier approval, corrective actions, complaint handling, and service assessment. Financial records are referenced for 2021–2023, but their actual performance is not provided.

Supplier typeThe supplier is identified as Hunan Shunfu Metal Material Co., Ltd., a limited company with 24 employees whose primary and offered product is steel pipe. It is not part of a larger company group, and its stated business scope includes permitted company operations and import/export activities.

After-Sales capabilityThe supplier has no overseas showroom, agents, branches, or reported offline trade-show participation. It also has no written procedures or records for customer complaints, corrective and preventive actions, or service-capability assessment, indicating limited documented after-sales infrastructure.

R&D capabilityThe supplier is described as a professional technical supplier and offers ODM services, but it has only one year of total R&D engineer experience, no SDK, no 3D software design service, and no new products launched in the past year. These stated limitations demonstrate a deficiency in innovation resources and recent product development.

Production capacityThe supplier reports annual production of 100,000 tons of oil steel products, with one-month lead times in both peak and off-peak seasons. Its product scope is steel pipe, and the stated production information supports established manufacturing capacity, although the slices do not provide independent verification of output or quality performance.

Customization capabilityThe supplier explicitly provides customization from samples and designs, along with OEM and ODM services. This supports both customer-specified product adaptation and design-manufacturing cooperation, although 3D software design and SDK support are unavailable.

Product Q&A

Q:What material is used for the Heavy Weight Drill Pipes?

They are machined from 31ft bars of AISI 4145H Mod alloy steel, quenched and tempered to meet API Spec 7-1, NS-1, and DS-1 properties.

Q:Are the weld zones inspected?

Yes, each weld zone is fully ultrasonically inspected and hardness tested to ensure quality.

Q:What hardbanding options are available?

Standard hardbanding is raised (1/8 inch oversize). Options include flush application and types like Duraband NC, Tuffband NC, Arnco 100XT, and Arnco 300XT.

Q:Can the drill pipes be customized?

Yes, we offer customization from samples and designs, including High Torque connections and blank ended delivery.

Q:What is the Minimum Order Quantity?

The Minimum Order Quantity is 1 Ton.