What is the lead time for production?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

What certifications does the product meet?

The product meets API 5DP, API 7G, and ISO 9001 international requirements.

What is the standard length of the drill collars?

Drill collars come in standard 30 or 31 foot lengths.

AISI 4145h Mod Od 6 3/4 Nc50 Slick Drill Collar

Name: AISI 4145h Mod Od 6 3/4 Nc50 Slick Drill Collar
Brand: Hunan Shunfu Metal Material Co., Ltd.
SKU: 2092310095

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

Manufacturing Process

Forging

Surface Treatment

Polishing

Model NO.

4145H MOD

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

API Compliant Material: Manufactured from AISI 4145H Mod steel meeting API Spec 7-1 NS1 and DS1 properties.

Wide Size Range: Available in OD sizes from 3 1/8 to 11 inches with various connection types.

Customization Support: ODM and OEM services available; customization from samples and specific requests.

High Strength & Toughness: Advanced heat treatment ensures high strength and toughness, especially at low temperatures.

Fatigue Resistance: Phosphatized cold roll on threads and stress relief grooves improve fatigue resistance.

Efficient Fluid Flow: Spiral grooves maintain even drilling fluid flow to reduce differential sticking.

Quality Assurance: Strict inspection instruments and ISO 9001 certified quality control system.

Flexible Lengths: Standard 30 or 31 foot lengths available as slick or spiraled drill collars.

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.