PRODUCT CATEGORY

RELATED PRODUCTS

Marine Pipes

  • Marine Pipes

Inquire
Product Information

Marine Pipes


Our marine stainless steel pipes are specially designed and manufactured to adapt to the harsh marine operating environments, including high humidity, salt spray corrosion, alternating temperature and pressure changes. With excellent seawater corrosion resistance, high mechanical strength, superior toughness and structural stability, these pipes are widely used for ship fluid transmission, cooling systems, hydraulic systems, heat exchange systems and offshore engineering supporting pipelines. All products comply with international marine industry specifications, ensuring safe, stable and long-lasting service in marine and offshore working conditions.


Main Material Grades

We provide a full spectrum of high-quality marine-grade stainless steel pipes to meet diverse application requirements for civilian ships, engineering vessels and offshore platforms:

  • TP304/L/H

  • TP316/L/Ti

  • TP317/L

  • TP321/H

  • TP347H

  • TP310S

  • Duplex Stainless Steel: UNS S31803 (S32205), S32750, S32760


Manufacturing Standards

All marine pipes are strictly produced and inspected in accordance with authoritative international and national standards to guarantee stable quality and compliant performance:

  • ASTM A312: Seamless, Welded Austenitic Stainless Steel Pipes for General Service

  • ASTM A789: Seamless and Welded Ferritic-Austenitic Stainless Steel Tubes for General Service

  • ASTM A213: Seamless Ferritic and Austenitic Alloy Steel Tubes for Boilers, Superheaters and Heat Exchangers

  • GB/T 14976-2002: Seamless Stainless Steel Pipes for Fluid Transportation

  • GB/T 12771-2000: Welded Stainless Steel Pipes for Fluid Transportation


Classification Society Certifications

Our marine pipe series has obtained official certification from world-renowned marine classification societies, fully meeting global shipbuilding and offshore engineering acceptance criteria:

  • Norwegian classification society (DNV.GL)

  • American Bureau of Shipping (ABS)

  • Bureau Veritas (BV)

  • Lloyd's Register (LR)

  • Others: Italian (RINA), Korean (KR), Japanese (NK), Chinese (CCS), Russian Customs Union (CU-TR), etc.



Product Size:

 Outside Diameter: Φ6mm-Φ580mm

 Wall Thickness:1.00mm-30.00mm

 Length: 4000mm-15000mm



OUTSIDE DIAMETERWALL THICKNESS
NB(inch)ASME(mm)SCH10SCH30SCH40SCH60SCH80SCH100SCH120SCH140SCH160
1/221.32.112.412.77
3.73


4.78
3/426.72.112.412.87
3.91


5.56
133.42.772.93.38
4.55


6.35
1.1/442.22.772.973.56
4.85


6.35
1.1/248.32.773.183.68
5.08


7.14
260.32.773.183.91
5.54


8.74
2.1/2733.054.785.16
7.01


9.53
388.93.054.785.49
7.62


11.13
3.1/2101.63.054.785.74
8.08



4114.33.054.786.02
8.56
11.13
13.49
5141.33.4
6.55
9.53
12.7
15.88
6168.33.4
7.11
10.97
14.27
18.26
8219.13.767.048.1810.3112.715.0918.2620.6223.01
102734.197.89.2712.715.0918.2621.4425.428.58
12323.84.578.3810.3114.2717.4821.4425.428.5833.32
14355.66.359.5311.1315.0919.0523.8327.7931.7535.71
16406.46.359.5312.716.6621.4426.1930.9636.5340.19
18457.26.3511.1314.2719.0523.8339.3634.9339.6745.24
205086.3512.715.0920.6226.1932.5438.144.4550.01
22558.86.3512.7
22.2328.5834.9341.2847.6353.98
24609.66.3514.2717.4824.6130.9638.8946.0252.3759.54
26660.47.92







28711.27.9215.88






307627.9215.88







Testing Facilities:

• Tensile testing machine

• Hardness testing machine

• Impact testing machine

• Metallurgical microscope with imageanalyser

• Germany Spike desktop full spectrum and portable spectrometer

Packing & Shipping


PACKING

1. Marking: Size, standard,heat number as customer required

2.  Surface: No 1. Hair Line, Bright

3. Inner Packing: steel strong trips on every bundle

4. Outer Packing: PE strip wrapping outside

5. We also can do as customers' requirements

SHIPPING

1. Shipping by containers

2. Shipping by bulk ship