API 5DP 4 Inch NC40 HWDP Heavy Weight Drill Pipe 4145H Modified

Name: API 5DP 4 Inch NC40 HWDP Heavy Weight Drill Pipe 4145H Modified
Brand: Hunan Shunfu Metal Material Co., Ltd.
SKU: 2092201535

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

Warranty

1 year

Model NO.

HWDP

Manufacturing Process

Forging

Surface Treatment

Coating

Operation Pressure

Atmospheric Pressure

Material

Alloy

Applications

Oil and gas drilling, Deep and ultra-deep wells

Pipe body OD

4.000 in (101.6 mm)

Pipe body ID

2-9/16 in (2.563 in / 65.1 mm)

Wall thickness

0.719 in (18.3 mm)

Tool joint OD

5-1/4 in (133.4 mm); slim 4-7/8 in on request

Connection

NC40 (4 FH), API Spec 7-2 gauged

Transport Package

Steel Frame

Specification

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

Trademark

SHUNFU

Origin

China

Key features

110 ksi yield, 140 ksi tensile: full-length Q&T 4145H Mod body, verified per heat by SHUNFU METAL.

NC40 Precision: CNC-cut threads, API 7-2 gauged, phosphated against galling for repeatable make-up.

Center Wear Pad: 0.719 in wall and raised wear pad cut fatigue at the drill collar transition.

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: ≤15h

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:Which specification governs this 4 in. NC40 heavy weight drill pipe?

Integral joints are supplied to API Spec 7-1, friction-welded joints to API Spec 5DP and ISO 11961. Threads are cut and gauged to API Spec 7-2 / ISO 10424-2, design limits follow API RP 7G. Body material is AISI 4145H Modified to ASTM A29 with hardenability to SAE J1268.

Q:What are the exact dimensions and surface finishes available?

4.000 in OD, 2-9/16 in ID, 0.719 in wall, 29.92 lb/ft, NC40 (4 FH) tool joints at 5-1/4 in OD, 31 ft standard length, about 430 kg per joint. Finishes: shot blast and varnish, black, internal epoxy or phenolic coating, hardbanding, phosphated or copper-plated threads.

Q:What documents and inspection does SHUNFU METAL provide?

Each joint is drifted, ultrasonically and magnetically inspected, hardness surveyed and gauged. SHUNFU METAL issues EN 10204 3.1 mill certificates, 3.2 on request, with heat and serial traceability under an ISO 9001 certified system. Sour service tempering to NACE MR0175 / ISO 15156 is available.