What are the payment terms?

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

What is the minimum order quantity?

The minimum order quantity is 1 Ton.

What is the function of the spiral grooves?

The spiral grooves allow mud to circulate freely, equalizing pressure and reducing the risk of differential sticking.

AISI 4145h Mod Od 7inch Nc50 Spiral Drill Collar

Name: AISI 4145h Mod Od 7inch Nc50 Spiral Drill Collar
Brand: Hunan Shunfu Metal Material Co., Ltd.
SKU: 2097753465

Hunan, ChinaHunan Shunfu Metal Material Co., Ltd.

US$500.00-2,000.00

1 Piece

Sample price:US$50.00/kg.Request sample

Product profile

Customization

Available

After-sales Service

Technical/Sample/Quality

Manufacturing Process

Forging

Model NO.

4145H MOD

Surface Treatment

Polishing

Operation Pressure

Atmospheric Pressure

Material

Alloy

Steel Grade

4145h

Protectors

Thread Protectors

Properties

Ns1 and Ds1 Properties

Standard

According to API Spec 7-1

Available

Pony Drill Collar Available

Groove

Stress Reflief Groove

Transport Package

Standard

Specification

3 1/8" - 11"

Trademark

SHUNFU

Origin

China

Production Capacity

100000 Tons Per Year

Key features

Spiral Groove Design: Allows mud circulation to relieve pressure difference and reduce differential pressure sticking.

API Spec 7-1 Compliance: Manufactured strictly according to API Spec 7-1 standard with NS1 and DS1 properties.

AISI 4145H Material: Made of modified AISI 4145H alloy steel for superior strength and toughness.

Wide Size Range: Available sizes range from 3.1/8 inches to 11 inches with various connection types.

Stress Relief Groove: Features SRG on pin bore back on box connections to improve fatigue resistance.

Advanced Heat Treatment: Utilizes advanced heat treatment and friction welding for high strength and stability.

Customization Options: Customization available from samples and designs for specific customer requirements.

Quality Certifications: Meets international requirements of API 5DP, API 7G, and ISO 9001.

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.