LR Approved Stainless Steel Seamless Pipe
We supply stainless steel seamless pipes and tubes for marine and offshore applications with Lloyd's Register certification support, full material traceability, and reliable inspection documentation.
What Is Lloyd's Register (LR) Certification?
Lloyd's Register (LR) is one of the world's most recognized classification societies for the marine, offshore, and industrial sectors. LR certification helps confirm that materials and products meet applicable technical, quality, and safety requirements for shipbuilding, marine piping, and offshore engineering projects.
Our stainless steel seamless pipes and tubes can be supplied for LR-class projects with relevant inspection documents, material certificates, and project documentation according to customer and technical requirements.
LR Certificate
Below is our Lloyd's Register related certificate information for stainless steel seamless pipes and tubes used in marine and offshore applications.

Certificate Name: LR Approval / Lloyd's Register Certificate
Issued By: Lloyd's Register (LR)
Product Scope: Stainless Steel Seamless Pipes and Tubes
Application: Marine and Offshore Projects
Document Support: Available upon request
Products Covered by LR Certification
We offer a wide range of stainless steel seamless pipes and tubes suitable for LR-class marine and offshore projects. Different grades, manufacturing standards, and dimensions can be supplied according to customer specifications and application 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 | Severe 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 and Offshore 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 support the requirements of LR-class marine and offshore projects, our stainless steel seamless pipes and tubes are supplied with strict quality control procedures, inspection records, and full material traceability from raw material to 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 project supply
Lloyd's Register certification support upon request
Full material traceability
Wide range of grades and standards
Reliable export packing and delivery
Fast technical and commercial response
