What is the lead time for orders?

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

Which markets do you export to?

We have exported to more than 50 countries, mainly in the Middle East, Russia, United States, Canada, Italy, Germany, Australia, Egypt, Japan, Indonesia, Bangladesh, Turkey, and India.

API-5CT Seamless 16"& 18-5/8"&20"Casing Pipe&OCTG Oilfield Services

Name: API-5CT Seamless 16"& 18-5/8"&20"Casing Pipe&OCTG Oilfield Services
Brand: Permanent Steel Manufacturing Co., Ltd.
SKU: 1962392062

Hunan, ChinaPermanent Steel Manufacturing Co., Ltd.

US$46.00

1 kg

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

24 Hours Online Service

Warranty

24 Months

Type

Seamless

Technique

Hot Rolled

Material

Carbon Steel

Surface Treatment

Black

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration

Section Shape

Round

Transport Package

Bundling

Trademark

PMC

Origin

China

Key features

Seamless Manufacturing: Hot rolled seamless process ensuring high strength for oil/gas drilling, boiler, and hydraulic applications.

Multiple Connection Types: Supports P, STC, LTC, BTC, NUE, EUE, and premium gas-tight connectors for diverse well requirements.

Comprehensive Quality Control: Rigorous testing including X-ray, hydrostatic, flattening, impact, and chemical composition analysis.

Wide Size Range: Outer diameter 1.315-20 inches, wall thickness 0.133-0.500 inches, lengths R1/R2/R3.

24-Month Warranty: Comprehensive 24-month warranty coverage with 24-hour online after-sales service support.

Global Export Experience: Exported to over 50 countries including USA, Russia, Middle East, and Europe since 2017.

OEM & Sample Support: Free small samples available; customized samples produced within 2-3 days; OEM services supported.

Company profile

Experienced TeamFast DeliveryManagement CertificationIn-stock Capacity

Permanent Steel Manufacturing Co., Ltd.

Hunan, China

Business Type: Manufacturer/FactoryExport Year: 2017-04-01Nearest Port: TIANJIN, SHANGHAIAverage Response Time: ≤6.30hTerms of Payment: T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryPermanent Steel Manufacturing Co., Ltd. is identified as a Chinese manufacturer/factory producing steel pipes and fittings, with operations described in Hunan, Shandong, and Tianjin. It has self-operated import/export rights, eight years of export experience, and exports representing 71%–90% of total sales. The supplier reports in-stock service capability, one-month average lead times in both peak and off-season, and sample-based customization. However, evidence indicates no overseas warehouses, showrooms, agents, or branches; no participation in offline trade shows; and service capability is not supported by written assessment procedures or an approved supplier list. ODM, SDK, and well-known-brand OEM services are unavailable. Raw-material traceability, outsourcing procedures, and manufacturing-capacity contracts remain unverified. No certification information or customer cases is provided.

Supplier typeThe supplier is explicitly identified as a limited-company manufacturer/factory specializing in steel pipes and fittings. Its stated business scope also includes marine equipment sales, related support services, and import/export activities.

R&D capabilityThe supplier does not provide ODM services, SDK availability, or OEM services for popular brands. It also reports no ERP, OA, CRM, or SAP system implementation, indicating explicit limitations in the documented R&D and digital-management capabilities.

Production capacityThe supplier is described as a factory specializing in steel pipes and fittings, has in-stock service capability, and reports one-month average lead times year-round. Nevertheless, raw-material traceability, outsourcing procedures, and manufacturing-capacity contract status are unknown, limiting verification of production-control depth.

Customization capabilityThe supplier explicitly offers customization from samples, and its company description states that customized services are provided for its products. This supports a demonstrated sample-based customization capability, although broader engineering or design-service scope is not established.

Product Q&A

Q:What are the main products offered?

Our main products are carbon steel seamless pipe, pipe fittings (flange, elbow, tee, reducer, nipple etc.), and sheets, pipes, coils, strips, bars, and channels.

Q:What are the advantages of your company?

We offer finest quality, best-in-class products at the most advantageous rates, supported by state-of-the-art manufacturing processes and contemporary technologies.

Q:How do you control product quality?

A dedicated quality control team supervises the entire process system. Regular tests include chemical composition analysis, mechanical properties (elongation, yield strength, tensile strength), DWT, impact, blow, flattening, X-ray, and hydrostatic tests.

Q:What payment terms do you accept?

We accept T/T (30% deposit, 70% before shipment), L/C at sight (30-120 days), Western Union, PayPal, or Trade Online.

Q:Can you provide samples or support OEM?

Yes, we support OEM. Small samples from stock are provided for free, while customized samples take approximately 2-3 days to produce.