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We are constantly exploring products tailored for the structural steel pipe market.
Here, you will find a unique product line designed specifically for the global market that pursues excellence and quality, aimed at meeting your various needs. Our goal is to become a leading global manufacturer of structural steel pipes, providing every customer with the high-quality products and services they expect.
ship building steel pipe
Manufacturing of seamless steel pipes for marine boilers, superheaters, and Class I and II pressure piping systems
Shipbuilding steel pipes are one of the key elements used in the manufacturing of ships, so enterprises need to ensure that their quality meets international standards when purchasing.
This includes the physical and chemical properties, dimensional accuracy and applicable classification society certification of steel pipes.
Application Of Marine Steel Pipe
Steel pipes for ships, are used in marine boilers and superheaters.
Shipbuilding Steel Pipe International Standard
CCS specification of China Classification Society 360、410、440、490
Det Norske Veritas DNV Specification Carbon and Carbon Manganese Steel, Alloy Steel
Lloyd's Register LR Specification Carbon and Carbon Manganese Steel, Alloy Steel
GL Rules GL-R360, GL-R410, GL-R510
BV Code 410HB, 510HB
Korean Classification Society KR Specification RST138, RST142
American Bureau of Shipping ABS specifications ASTM A53 B/C, ASTM A106 B/C, ASTM A179, ASTM A192
Japan Classification Society NK Specification STPG410, STPG510
Since 2002, Yuantai Derun has obtained product standard certifications from various countries around the world, such as BV, DNV, ABS, etc
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Common Specifications
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57mm, 60, 63.5, 70, 73, 89, 95, 108, 127, 133, 140, 159, 168-426mm, and other different sizes
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Delivery Time
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The delivery time of ship pipes is generally longer than that of ordinary steel pipes. 15-90 days
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Material
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20 45 Q345B、27simn、16mn、20G、15crmo,320, 360, 410, 460, 490, etc
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customization
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Yes， Yuantai Derun supports customization
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Dimensional Tolerances For Shipbuilding Steel Pipes
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Steel pipe type
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Outer diameter (D)
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steel pipe wall thickness (S)
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Cold-drawn pipe | Outer diameter of steel pipe (mm) | Allowable deviation (mm) | Steel pipe wall thickness (mm) | Allowable deviation (mm) |
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>30～50
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±0.3 |
≤30
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±10%
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>50～219
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±0.8% | |||
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hot-rolled pipe
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>219
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±1.0% |
>20
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±10%
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Allowable Deviation Of Outer Diameter And Wall Thickness
Outer diameter D | hot-rolled pipe | Outer diameter size mm | ≤ 159 | ＞ 159 | |
Allowable deviation % | ± 1.0 | ± 1.25 | |||
cold-drawn pipe | Outer diameter size mm | ≤ 30 | ＞ 30~50 | ＞ 50 | |
Allowable deviation % | ±0.20mm | ± 0.30mm | ± 0.8% | ||
Wall thickness S |
hot-rolled pipe
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Wall thickness dimension mm |
3 ＜ S ≤ 20
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S ＞ 20
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Allowable deviation % |
+15-10
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± 10
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cold-drawn pipe
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Wall thickness dimension mm |
1.5~3
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＞ 3
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Allowable deviation % |
+12-10
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± 10
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2 products found
High-quality seamless steel ship pipes for global buyers Our versatile product line includes steel pipes for ships.
Premium square tubes (ASTM A-572 GRADE 50) for durable marine platform pier structure. Contact us now!
Categories
- square steel pipe
- rectangular steel pipe
- round steel pipe
- shaped tube
- LSAW steel pipe
- zinc aluminium magnesium coating steel pipe
- galvanized steel pipe
- ERW steel pipe
- seamless steel pipe
- spiral steel pipe
- LINE PIPE&OCTG
- stainless steel pipe
- steel coil
- steel plate
- ship building steel pipe
- photovoltaic bracket
- steel profile
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Yuantai team has over 21 years of experience in steel pipe project applications, specializing in the production, manufacturing, and customization of square rectangular, and circular steel pipes. Warmly welcome project procurement managers, individual owners, designers, and overall sellers, etc. Write down your requirements and receive professional quotes and technical support.
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