What steel grades are available for oil casing?

Available grades include J55, K55, N80, L80, P110, C95, T95, Q125, and corrosion-resistant grades like L80-13CR and P110-13CR.

What is the warranty period for the product?

We provide a 1-year warranty for our oil casing and tubing products.

Oil Tubing and Casing with API 5CT, J55 N80 Full Range of Specifications

Name: Oil Tubing and Casing with API 5CT, J55 N80 Full Range of Specifications
Brand: Shanghai Baori Steel Industries Co., Ltd.
SKU: 2276516865

Shanghai, ChinaShanghai Baori Steel Industries Co., Ltd.

US$800.00-1,000.00

1 Ton

Product profile

After-sales Service

100% After-Sales Service

Warranty

1 Year

Material

Steel

Model NO.

customisation

Standard

API5CT

Tubing Outer Diameter

2 3/8''-4 1/2''

Casing Outer Diameter

4 1/2''-20''

Wall Thickness

0.205''-0.635''

Length

R1,R2,R3

Steel Grade

J55/K55/N80/L80/P110/C95/T95/Q125/L80-13cr/P110-

Connection Type

Nu/EU/Ij/Stc/Btc/Ltc/Premium Connection

Transport Package

Waterproof Paper Wrapped

Specification

Customized

Trademark

Baori Steel

Origin

China

Key features

API 5CT Certified Quality: Strict adherence to API 5CT and ISO standards with API certification marks for global acceptance.

High Strength & Integrity: Premium steel construction ensures exceptional tensile, compressive, and crush resistance for deep wells.

Outstanding Corrosion Resistance: Available in L80 13Cr and C90 grades, suitable for sour service environments with H2S and CO2.

Wide Specification Range: OD 4.5-20 inches, wall thickness 0.205-0.635 inches, and multiple steel grades available.

15+ Years Manufacturing Exp: Own factory with 15 years experience, 200,000 tonnes annual capacity, and 4 production lines.

Comprehensive Certifications: Holds API 5CT, ISO 9001, GOST, and ISO 14001 certifications for robust quality assurance.

100% After-Sales Service: Dedicated after-sales support with a 1-year warranty covering mechanical defects.

Global Export Experience: Exported to over 50 countries with established export processes and convenient Shanghai port access.

Company profile

High Repeat Buyers ChoiceFast DeliveryLow MOQFlexible Customization

Shanghai Baori Steel Industries Co., Ltd.

Shanghai, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤1.23h

AI-Powered supplier vetting

SummaryShanghai Baori Steel Industries Co., Ltd. is a limited company with three employees, offering Spring Steel Cold Coin and a broad range of hardware, building-material, ceramic, timber, automotive, motorcycle, and general merchandise products. It reports flexible customization and one year of export experience, but no ODM, popular-brand OEM, SDK, or new-product launches during the past year. Service coverage is limited: it has no stock, overseas warehouse, showroom, agent, or branch, and serves zero overseas countries according to the provided data. Peak- and off-season lead times are stated as within 15 workdays to one month. Quality-system evidence is incomplete, with zero listed quality-control testing equipment and unknown quality assurance and traceability status. An audit by TÜV Rheinland is recorded, but the audit result is shown as 0 and the report validity ended on 2025-10-14. No customer cases or offline trade-show participation are provided.

After-Sales capabilityThe supplier has 10 qualified service suppliers and accepts FOB, CIF, and CFR quotation terms plus LC and T/T payment terms. Nevertheless, it has no stock, overseas warehouse, showroom, agent, or branch; it has served zero overseas countries in the provided data, and its service corrective/preventive-action mechanism lacks written procedures or records.

R&D capabilityThe supplier launched no new products during the past year and does not provide ODM services, popular-brand OEM services, or an SDK. One R&D engineer is listed, but the stated responsibility is handling product photos, which does not demonstrate substantive product-development capability.

Production capacityThe supplier offers flexible customization and reports lead times ranging from within 15 workdays to one month in both off- and peak-season statements. However, it has only three employees, no in-stock capacity, zero listed quality-control testing equipment, and unknown quality-assurance and traceability status, indicating explicit production and quality-control limitations.

Customization capabilityThe supplier explicitly reports flexible customization for its Spring Steel Cold Coin offering. The provided slices do not specify customization scope, tooling, technical resources, or delivery conditions, but the stated capability is direct evidence of customization availability.

Product Q&A

Q:What is the primary function of oil casing?

To support the wellbore walls, isolate formations, prevent blowouts, and establish a secure pathway for oil and gas extraction.

Q:How should one select the appropriate casing steel grade?

Selection depends on well depth, formation pressure, and corrosive environment. Common grades include N80 (general conditions), L80 (corrosive environments), and P110 (deep wells with high pressure).

Q:What is the difference between API threads and special threads?

API threads offer cost-effective versatility; special threads provide superior sealing, tensile strength, and torsional resistance, suitable for high-pressure gas wells or complex well conditions.

Q:What key parameters are required when ordering casing?

Outer diameter, wall thickness, steel grade, thread type, length, and quantity. Specify whether API compliance is required.

Q:How to determine if casing quality meets standards?

Verify API certification marks and third-party inspection reports. Inspect physical markings, dimensional accuracy, thread machining quality, and non-destructive testing records.