Seamless Steel Pipe for Ship Building

Date: 2023-02-10

Seamless Steel Pipe for Ship Building The seamless steel pipe for ship building usage are mainly used for Level 1& Level 2 pressure pipe in piping system, boiler and super-heated unit of shipbuilding. Model N0．of major steel tubes: 320，360，410，460，490，etc． Sizes: Chemical compisition: Mechanocal properties： Post time: Feb-10-2023 Types of steel tubes Out diameter Out diameter Wall thickness Wall thickness Cold-rolled tubes Tube sizes (mm) Tolerances (mm) Tube sizes (mm) Tolerances (mm) Cold-rolled tubes ＞30-50 ±0.3 ≤30 ±10% Cold-rolled tubes ＞50-219 ±0.8% ≤30 ±10% Hot-rolled tubes ＞219 ±1.0% ＞20 ±10% Models of steel tubes Chemical compisition (%) Chemical compisition (%) Chemical compisition (%) Chemical compisition (%) Chemical compisition (%) Models of steel tubes C Si Mn P S 320 ≤0.16 ≤0.35 0.40-0.70 ≤0.035 ≤0.035 360 ≤0.17 ≤0.35 0.40-0.80 ≤0.035 ≤0.035 410 ≤0.21 ≤0.35 0.40-1.20 ≤0.035 ≤0.035 460 ≤0.22 ≤0.35 0.80-1.40 ≤0.035 ≤0.030 490 ≤0.23 ≤0.35 0.80-1.50 ≤0.035 ≤0.030 Models of steel tubes Tensile strength (MPa) Yield strength (MPa) Elongation (%) 320 320-410 ≥195 ≥25 360 360-480 ≥215 ≥24 410 410-530 ≥235 ≥22 460 460-580 ≥265 ≥21 490 490-610 ≥285 ≥21

Prev : Performance advantages of seamless pipe
Next : Advantages and disadvantages of carbon steel seamless pipe
Tags : electric resistance welded pipe , stainless pipe , ERW steel pipe provider

News

Latest news list

How to Prevent Corrosion in Hollow Section Steel Structures

Square and rectangular hollow sections are widely used in structural frames,equipment supports,industrial platforms and fabricated steel structures,Their closed profiles provide an efficient combination of strength,stiffness and clean geometry,but carbon steel hollow sections can corrode when they are exposed to moisture,salts,chemicals or other aggressive conditions,
How Are Square and Rectangular Hollow Sections Manufactured

Square and rectangular hollow sections are widely used in structural frames,industrial equipment,construction projects and fabricated steel structures,Their appearance is simple,but producing a section with consistent dimensions,wall thickness,straightness and material performance requires control at several stages,
Alloy Steel Pipe Buying Guide for International Projects

Buying alloy steel pipe for an international project involves more than comparing prices per tonne,For EPC contractors,distributors and industrial buyers,procurement needs to connect technical specifications,quality control,inspection,documentation and logistics,A well-defined purchasing process helps reduce specification gaps,inspection delays and delivery problems before the pipe reaches the project site,
How to Select Alloy Steel Pipe for High-Temperature and Pressure Service

Selecting alloy steel pipe should start with the actual service conditions,not simply with a supplier's product catalog,In boiler,power generation and refinery applications,temperature,pressure,process medium and material properties all affect pipe selection,For example,ASTM A335,A335M-26 covers seamless ferritic alloy-steel pipe for high-temperature service,The standard states that selection depends on design,service conditions,mechanical properties and high-temperature characteristics,For buyers,a structured selection process helps prevent specification gaps before production begins,
How to Extend the Service Life of Alloy Steel Pipe in Boiler and Refinery Systems

Alloy steel pipe is widely used in boiler,power generation and refinery systems where piping is exposed to elevated temperatures,pressure and demanding process conditions,Selecting the correct alloy grade is important,but material selection alone does not determine service life,Long-term performance also depends on operating conditions,thermal exposure,wall thickness,fabrication quality,inspection and maintenance,For example,ASTM A335,A335M-26 covers seamless ferritic alloy-steel pipe for high-temperature service and states that material selection depends on design,service conditions,mechanical properties and high-temperature characteristics,