KR Approved Stainless Steel Seamless Pipe

We supply stainless steel seamless pipes and tubes for marine and offshore projects with KR certification support, full traceability, and reliable inspection documentation.

About KR Certification

Korean Register (KR) is an internationally recognized classification society serving the marine and offshore industries. KR certification helps verify that materials and products meet applicable technical, safety, and quality requirements for shipbuilding, marine engineering, and offshore projects.

Our stainless steel seamless pipes and tubes can be supplied for KR-class projects with relevant inspection documents and material certificates according to customer specifications and project requirements.

KR Certificate

Below is our KR-related certificate information for stainless steel seamless pipes and tubes used in marine and offshore applications.

Certificate Name: KR Approval / KR Certificate
Issued By: Korean Register (KR)
Product Scope: Stainless Steel Seamless Pipes and Tubes
Application: Marine and Offshore Projects
Document Support: Available upon request

Products Covered by KR Certification

We offer a range of stainless steel seamless pipes and tubes suitable for KR-class marine and offshore applications. Different grades, standards, and dimensions can be supplied according to project requirements.

Product	Grade	Standard	Size Range	Typical Application
Stainless Steel Seamless Pipe	316L	ASTM A312 / EN 10216-5	Custom sizes available	Marine piping systems
Stainless Steel Seamless Tube	316L / 321	ASTM A269 / ASTM A213	Custom sizes available	Instrumentation and heat exchange
Duplex Seamless Pipe	2205	ASTM A790	Custom sizes available	Seawater and offshore systems
Super Duplex Seamless Pipe	2507	ASTM A790	Custom sizes available	High-corrosion marine environments

Available Grades

304 / 304L
316 / 316L
321
317L
Duplex 2205
Super Duplex 2507

Standards Available

ASTM A312
ASTM A269
ASTM A213
ASTM A790
EN 10216-5
DIN / JIS standards available upon request

Typical Marine Applications

Seawater cooling systems
Ballast water piping
Marine process piping
Offshore platform piping
Hydraulic systems
Instrumentation tubing
Heat exchanger tubing

Quality Control and Inspection

To meet the requirements of KR-class marine and offshore projects, our stainless steel seamless pipes and tubes are supplied with strict inspection, quality control, and full material traceability throughout production and shipment.

Chemical composition analysis
Mechanical property testing
PMI testing
Hydrostatic testing
Dimensional inspection
Surface inspection
UT / ET / other NDT as required
Heat number traceability

Why Choose Us?

Stainless steel seamless pipe specialist
Support for marine and offshore projects
KR certification support upon request
Full material traceability
Wide range of grades and standards
Reliable export packing and delivery
Fast response to technical and commercial inquiries