What certifications do you have?

We hold CE and ISO9001 certifications and follow API 5CT standards.

How is the product packed and shipped?

Packed in waterproof plastic bags, steel strips, or in bulk. Shipped via container or bulk vessel.

What payment terms are accepted?

We accept T/T, L/C, PayPal, and Western Union.

Seamless Carbon Steel Pipe

Name: API 5CT S135/J55/K55/N80 Casing Drill Pipe/Seamless Carbon Steel Pipe
Brand: TIANJIN BOER KING STEEL CO., LIMITED
SKU: 2096979772

Tianjin, ChinaTIANJIN BOER KING STEEL CO., LIMITED

US$490.00-790.00

1 Ton

Sample price:US$300.00/piece.Request sample

Product profile

Customization

Available

Application

Chemical Industry, Construction Industry, Oil and Gas Industry, Water Treatment Plants

Certification

CE, ISO9001

Model NO.

S135/J55/K55/N80

End Connection

Threaded

Length

R1(5.49-6.71m), R2(8.23-9.14m), R3(11.58-13.72m)

Outer Diameter

30mm-711mm

Wall Thickness

2mm-60mm

Surface Treatment

Black

Usage

Pipeline Transport, Oil/Gas Drilling, Mining, Cons

Standard

GB ASTM JIS API

Transport Package

Standard Export Seaworthy or as Customers Require

Specification

OD Size:10-910mm Wall thickness (W.T.):1mm-56mm

Trademark

Boerking

Origin

Tianjin China

HS Code

7319

Production Capacity

50000 Pieces Per Month

Key features

Wide Size Range: Outer diameter 30mm-711mm and wall thickness 2mm-60mm available.

Multiple Steel Grades: Available in API J55, K55, N80, L80, P110, H40, M65, C90, T95, C95, Q125, V150.

Customizable Options: Length, surface treatment, and thread type can be customized as per customer requirements.

Strict Quality Control: Inspected with Hydraulic Testing, Eddy Current, and Infrared Test methods.

High Production Capacity: Monthly productivity reaches 2000 Metric Tons for timely delivery.

Versatile Applications: Suitable for Chemical, Construction, Oil & Gas, and Water Treatment industries.

Certified Standards: Manufactured under ISO 9001-2008 and API 5CT international standards.

Flexible Payment Terms: Supports T/T, L/C, FOB, CFR, CIF, and EXW trade terms.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceCooperated with Fortune 500Years of Export Experience

TIANJIN BOER KING STEEL CO., LIMITED

Tianjin, China

Business Type: Manufacturer/Factory, Group CorporationExport Year: 2024-06-13Nearest Port: Tianjin,ChinaAverage Response Time: ≤7.61hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryTIANJIN BOER KING STEEL CO., LIMITED is identified as a China-based limited company and manufacturer/factory, also associated with a larger group. Its stated product range covers several steel pipe, tube, and steel plate/coil categories. The supplier has exported for 10 years, with exports representing 51%–70% of total sales, and reports OEM and ODM capabilities. However, it does not provide 3D software design, reports no new products in the past year, and has no stated in-stock, overseas warehouse, or overseas showroom capability. Service procedures exist for supplier assessment, corrective actions, and complaint handling, but no written records were provided. Financial-period entries are present, but the slices do not provide sufficient non-financial evidence to assess financial credibility. A BV audit is recorded, with an evaluation result of 0 and a report period from September 11, 2023 to September 10, 2024; the slices do not identify a certification held.

After-Sales capabilityThe supplier has procedures for customer complaint handling, corrective and preventive actions, and service-capability assessment, but no written records were provided for these processes. It also reports no in-stock service, overseas warehouse, or overseas showroom capability, indicating explicit limitations in service infrastructure.

R&D capabilityThe supplier reports no professional technical R&D capability, no new products in the past year, and no available SDK. It does provide ODM services, but the explicit lack of R&D indicators and recent product development is a deficiency for innovation capability.

Production capacityThe supplier is described as a manufacturer/factory offering seamless steel pipe, oil casing pipe, galvanized steel pipe, stainless steel pipe, boiler steel tube, and steel plate/coil. However, it reports no in-stock capability, while outsourcing procedures and manufacturing contracts are unknown; product scope supports production activity, but capacity depth cannot be fully verified.

Customization capabilityCustomization from samples is explicitly available, and the supplier reports both ODM services and OEM capability for popular brands. These records provide direct evidence of customization and private-label manufacturing capability.