What are the payment terms?

We accept LC, T/T, and D/P as terms of payment.

What is the lead time for production?

Lead time is one month during peak season and within 15 workdays during the off-season.

Can the product be customized?

Yes, we offer OEM and ODM services, including customization from samples, blank ended delivery, and internal coating.

4145h Mod / 1340 Od 4 Inch Welded Heavy Weight Drill Pipes

Name: 4145h Mod / 1340 Od 4 Inch Welded Heavy Weight Drill Pipes
Brand: Hunan Shunfu Metal Material Co., Ltd.
SKU: 2097538925

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

API Spec 7-1 Compliance: Integral and welded types meet API Spec 7-1, NS-1, and DS-1 mechanical properties.

Premium Alloy Material: Constructed from AISI 4145H Mod alloy steel, fully quenched and tempered for durability.

Advanced Hardbanding: Standard raised hardbanding on tool joints with options for tungsten carbide or Duraband.

Rigorous Quality Control: Each weld zone undergoes full ultrasonic inspection and hardness testing.

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

Custom Thread Options: Available threads include NC38, NC40, NC46, NC50, 5 1/2 Fh, and 6 5/8 Fh.

High Torque Connections: Optional high torque connections available upon request for enhanced performance.

Flexible Customization: Supports OEM/ODM services, blank ended delivery, and internal coating options.

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: ≤24h

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 drill pipes?

The pipes are made from AISI 4145H Mod alloy steel, which is full-length quenched and tempered to meet API Spec 7-1 mechanical properties.

Q:What types of Heavy Weight Drill Pipes are available?

We offer Integral, Welded, and Spiral Heavy Weight Drill Pipes, each machined or assembled to specific API standards.

Q:Is hardbanding included as standard?

Yes, standard hardbanding is raised (1/8 inch oversize) on tool joints and central upsets. Other types like tungsten carbide are available on request.

Q:What thread connections are supported?

Standard connections include NC38, NC40, NC46, NC50, 5 1/2 Fh, and 6 5/8 Fh. High torque connections can also be manufactured upon request.

Q:What is the minimum order quantity?

The minimum order quantity is 1 ton.