What material is used for Class T couplings?

Class T coupling is manufactured using AISI 5140 alloy steel.

How is the thread cutting process performed?

We use cold form rolling by displacing material rather than removing it, which creates compressive stress at the thread root for maximum strength.

What surface treatments are available?

The coupling can be coated using phosphate chemical treatment or black oxide on customer's request.

API 11b Sucker Rod Coupling T Sm Class Spray Welding

Name: API 11b Sucker Rod Coupling T Sm Class Spray Welding
Brand: Shandong Light Fir Machinery Equipment Co., Ltd.
SKU: 2063472065

Shandong, ChinaShandong Light Fir Machinery Equipment Co., Ltd.

US$2.00-10.00

1 Piece

Sample price:US$5.00/joint.Request sample

Product profile

Customization

Available

After-sales Service

7X24

Warranty

12months

Manufacturing Process

Forging

Surface Treatment

Polishing

Operation Pressure

Material

Alloy

Delivey

10days

Transport Package

Stand Export Package

Specification

5/8", 3/4", 7/8", 1", 1-1/8"

Trademark

LFM

Origin

China

Production Capacity

100000

Key features

API 11B Compliant: Manufactured strictly according to API Specification 11B standards.

Cold Form Rolled Threads: Uses cold form rolling to create compressive stress for maximum thread strength.

High Wear Resistance: Advanced thermal spraying reduces friction coefficient to 0.01, extending service life.

Hydrogen Embrittlement Resistant: Made from AISI 5140 alloy steel, highly resistant to hydrogen embrittlement.

Customizable Surface Treatment: Coated with phosphate chemical treatment or black oxide upon customer request.

Multiple Size Options: Available in full size, slim hole, over size, and combination sub-couplings.

7x24 After-Sales Support: Provides round-the-clock technical support and service for all customers.

12-Month Warranty: Comprehensive 12-month warranty coverage for peace of mind.

Company profile

Shandong Light Fir Machinery Equipment Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2021-08-17Nearest Port: Tianjin, Shanghai, QingdaoAverage Response Time: ≤8.13hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, DAP, CIP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryShandong Light Fir Machinery Equipment Co., Ltd. is a China-based limited company described as both a trading company and manufacturer/factory, offering oilfield and drilling-related equipment. It holds an ISO 9001 management-system certification and reports a valid import/export license. The supplier provides customization from samples and designs and has provided OEM services for well-known brands, but reports no ODM service and no new products in the past year. Production is supported by two production lines, while reported R&D-engineer and quality-control staffing are each below five. Service infrastructure is limited: there are no overseas warehouses, showrooms, agents, branches, or offline trade-show participation. Written procedures or records for service assessment, corrective/preventive action, and complaint handling were not provided. Financial records are identified by year, but no performance values are supplied, so financial credibility cannot be assessed.

CertificationsThe supplier reports holding ISO 9001 certification. This is explicit evidence of a quality-management-system certification, although no additional certification details are provided.

After-Sales capabilityThe supplier has no written procedures or records for service-capability assessment, corrective and preventive actions, or effective complaint handling. It also reports no overseas warehouse, showroom, agent, branch, or offline trade-show experience, although it lists 15 qualified service-capability suppliers and offers a one-month average lead time.

R&D capabilityThe supplier reports no available SDK, no new products during the past year, and no ODM service. Its R&D engineer experience is below five years, which provides no evidence of strong innovation performance; however, it does provide customization from samples and designs.

Production capacityThe supplier identifies itself as a manufacturer/factory, operates two production lines, and offers a broad range of artificial-lift, wellhead, well-control, valve, cementing, drilling, and solid-control equipment. Quality-control staffing is below five, so production scope is documented but operational scale and capacity remain limited or unverified.

Customization capabilityThe supplier explicitly provides customization from samples and from customer designs, and lists customized products among its main offerings. It also reports OEM service for well-known brands, while not offering ODM service.

Product Q&A

Q:What is the packing method?

Regular packing.

Q:What is the delivery time?

Normally, about 30-45 days.

Q:What are the shipping methods?

Ocean shipment to the port near you; Air shipment to the airport near your company; Door to door service by international express.

Q:What payment options are accepted?

In general, we accept T/T.

Q:When can I get the price?

We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will deal with your inquiry priority.