N850 Non Magnetic Drill Collar 9 Inch Od 7-5/8 Reg API 7-1

Name: N850 Non Magnetic Drill Collar 9 Inch Od 7-5/8 Reg API 7-1
Brand: Hunan Shunfu Metal Material Co., Ltd.
SKU: 2334011785

Hunan, ChinaHunan Shunfu Metal Material Co., Ltd.

US$1,500.00-3,000.00

1 Piece

Sample price:US$50.00/kg.Request sample

Product profile

Customization

Available

After-sales Service

Technical/Sample/Quality

Warranty

1 Year

Model NO.

N850

Manufacturing Process

Forging

Operation Pressure

Atmospheric Pressure

Material

Alloy

Delivery Condition

Solution Annealed, Full-Length Cold Worked

Standard

According to API Spec 7-1

Surface Condition

Peeled, Turned or Ground/Rough Machined; Shot Peed

Typical Applications

Oil and Gas Drilling / Industrial and Marine

Non-Magnetic Hollow Bar

Od: 60 mm to 400 mm, Wall 10 mm to 80 mm

Transport Package

Standard

Specification

3 1/8" - 11"

Trademark

SHUNFU

Origin

China

Production Capacity

100000 Tons Per Year

Key features

Ultra-Low Permeability: ur max 1.005, 100% hot-spot tested, keeps MWD survey data accurate.

150 ksi Yield: Cold-worked 1035 MPa yield, 1104 MPa tensile, 300-430 HB for high WOB.

Sour Service Ready: NACE MR0175 / ISO 15156 qualified, resists pitting and SCC in H2S wells.

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:Why is a non-magnetic collar needed in the BHA?

MWD and LWD tools use magnetometers to read well azimuth. A magnetic steel collar near the tool biases that reading and the well path drifts. N850 gives a relative permeability of 1.005 or less, so it carries weight on bit without disturbing the survey.

Q:Can N850 be used in sour wells?

Yes. The alloy conforms to ANSI/NACE MR0175 / ISO 15156 and is rated for 1000 psia H2S at 180,000 mg/L chloride up to 288 C, and for 500 psia H2S with elemental sulphur up to 204 C.

Q:What is the lead time?

Common sizes are stocked and ship in about 7 days with a single piece minimum. Custom forgings and rolled bars run at a 3 ton minimum with roughly 30 days production.