What grades are available?

Available grades include H40, J55, K55, N80, L80, C90, T95, P110, and Q125 across various PSL levels.

What are the available lengths?

Tubing lengths range from R1 (6.10m to 7.32m) to R3 (11.58m to 12.80m). Casing lengths range from R1 (4.88m to 7.62m) to R3 (10.36m to 14.63m).

Do you offer customization?

Yes, we offer full customization from samples, designs, and minor customization options.

API5CT Casing K55 7′ ′ Btc Psl1 R3

Name: API5CT Casing K55 7′ ′ Btc Psl1 R3
Brand: Dongying Lake Petroleum Technology Co., Ltd.
SKU: 2014427075

Shandong, ChinaDongying Lake Petroleum Technology Co., Ltd.

US$1,600.00

10-99 Tons

US$1,550.00

100+ Tons

Product profile

Customization

Available

After-sales Service

Online

Warranty

Online Support

Model NO.

K55

Certification

ISO 9001:2000, ISO 9001:2008, API 5CT

Power Source

Pneumatic

Operation Pressure

Atmospheric Pressure

Applicable Medium

Mud, Natural Gas, Crude Oil

Structure

Seamless Steel Pipe

Material

Cast Steel

Product Name

Casing

Thread

Stc Btc Ltc

Steel Grade

J55 N80 P110 Q125

Diameter

114mm~508mm

Standard

API 5CT

Pipe Type

Smls

Transport Package

Bundle

Specification

4 1/2''~20''

Trademark

Lake petro

Origin

China

HS Code

7307990000

Production Capacity

100000tons/Month

Key features

Anti-SSC Performance: Cr-Mo series designed for excellent resistance to sulfide stress corrosion cracking in sour gas environments.

API 5CT Certification: Compliant with API 5CT and ISO 11960 standards for oilfield casing and tubing.

Full Length Inspection: Non-destructive testing performed on all pipes for external and internal defects.

Customizable Grades: Available in J55, N80, P110, Q125, and other grades based on customer requirements.

Customizable Dimensions: Diameter ranges from 114mm to 508mm with various wall thickness options.

Seamless Construction: Manufactured as seamless steel pipes for superior structural integrity.

OEM/ODM Service: Full customization available from samples, designs, and minor modifications.

Global Export Experience: Products exported to USA, South America, Africa, Middle East, and Russia for 14 years.

Company profile

Exhibition ExperienceMulti-language PioneerYears of Export ExperienceCooperated with Fortune 500

Dongying Lake Petroleum Technology Co., Ltd.

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 14 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.27h

AI-Powered supplier vetting

SummaryThe supplier demonstrates customization, ODM, and OEM capabilities, with a new product reported in the past year and AutoCAD-based R&D. Quality processes include raw-material traceability, documented inspection instructions, and random finished-product inspection, but only one quality inspector is reported. Service procedures and complaint-handling procedures are documented and followed, although corrective/preventive actions lack written records. Overseas service infrastructure is limited: no overseas warehouse, showroom, agents, or branches, and overseas service coverage is listed as zero. Financial, certification, production scale, and customer-case evidence is insufficient for a definitive assessment. Sustainability and digital-management capabilities appear limited, with no ERP, CRM, SAP, or AI-based management implementation reported.

Supplier typeThe supplier is identified through its capabilities as a professional technical supplier, provides ODM services, and supplies OEM services for well-known brands. This supports classification as a technical manufacturing/OEM-ODM supplier, although the slices do not state a formal legal or industry supplier category.

After-Sales capabilityThe supplier has a clear customer-complaint handling procedure with followed records, and service assessment procedures with written procedures and records. However, it reports no overseas warehouse, showroom, agents, or branches, which limits documented overseas service infrastructure.

R&D capabilityThe supplier reports new products in the past year, ODM capability, AutoCAD use, and professional technical-supplier status. Conversely, it reports zero patents, no private mold design capability, no 3D software design service, no SDK, and no AI, ERP, CRM, or SAP-based digital-management capability, indicating some product-development capacity but limited documented innovation infrastructure.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, and also reports ODM service availability. This is direct evidence of broad customization capability.

Product Q&A

Q:How can I place an order?

You can contact us by email about your order details, or place an order online.

Q:How can I pay you?

After you confirm our PI, we will request payment. T/T (HSBC bank), Paypal, and Western Union are the most usual ways we are using.

Q:What is the order procedure?

First we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do pre-paid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 7-15 days if we don't have the items in stock. Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for yo

Q:How do you handle defective products?

Replacement. If there are some defective items, we usually credit to our customer or replace in next shipment.

Q:What is the minimum order quantity?

The minimum order quantity is 20 tons.