KR Certified Steel Tube

What is KR certified seamless steel tube

KR-certified stainless steel seamless pipes are marine-grade tubes approved by Korean Register (KR), complying with strict international shipbuilding standards. They offer excellent corrosion resistance, high pressure resistance and reliable performance for harsh marine environments. They can be used in seawater cooling, ballast water, fuel and chemical piping systems for ships and offshore projects.

Specifications of stainless steel pipe tube

Applications

KR Certified Austenitic Stainless Steel Pipes (304/316L)

• Seawater cooling and ballast water systems

• Fresh water, domestic water and fire-fighting pipelines

• Fuel oil and lubricating oil lines

• General chemical and lowtemperature auxiliary systems

KR Certified Duplex Stainless Steel Pipes (S310803/S32750)

• High-pressure & highly corrosive seawater pipelines

• Cargo lines for chemical tankers

• Offshore platforms and FPSO key piping

• Severe corrosive and highchloride environments

Austenitic VS Duplex Stainless Steel Pipe

Austenitic (316L): High cost-performance ratio, suitable for moderately corrosive environments such as seawater, domestic water, and common chemicals.

Duplex (2205/2507): Higher strength and stronger corrosion resistance, suitable for harsh conditions such as high chlorine, high pressure, deep sea, and strong corrosion.

Our certificates

Factory show

Packaging &delivery

Our marine stainless steel seamless pipes are packed in full compliance with classification society and marine transportation standards.

Delivery lead time depends on material, specifications, inspection requirements and order quantity, typically ranging from 8 to 19 working days, and can be shortened if inventory is available.

We recommend you make arrangements in advance and confirm your detailed needs. We will arrange production actively in accordance with the contract to ensure on‑time delivery and avoid any impact on your project schedule.

Our service

· Ready stock of KR-certified seamless stainless steel pipes with fast sample service.

· Full set of classification society documents including KR certificate, MTC, test reports.

· Marine-standard packaging for safe ocean transportation.

· On-time delivery guaranteed to avoid delaying your shipbuilding schedule.

· Custom sizes & professional material selection support (316L/2205/2507).

· Full after-sales service & assistance during class inspection.

· One-stop export service: documentation, customs clearance, logistics.

Original source: https://www.marinesteelpipe.com/product/kr-certified-steel-tube.html