Seamless steel pipe for ship building usage

Seamless steel pipe for shipbuilding is mainly used for piping system, 1 grade and 2 stage pressure piping for boiler and super heating unit.


Seamless steel pipe for shipbuilding is shipbuilding steel pipe designed for ship boiler, super heater and pressure system. Marine steel pipe can be widely used in CCS, DNV, LR, GL, ABS, BV, RINA, NK and other ships and Chinese national standards.

Classification of ships:

• Standard for malerials and wielding from Chinese classifying society Chinese clasifying society(CCS)
• Standard of DNV Det Norske Veritas(DNV)
• Standard of Lloyd’S Register of UK(LR)　Lloyd’S Register of UK(LR)
• Standard of Germanischer Lloyd Germanischer Lloyd(GL)
• Standard of American Bureau of Shipping(ABS)American Bureau of Shipping(ABS)
• Standard of BUREAU VERITAS(BV)BUREAU VERITAS(BV)
• Standard of RINA Italian classification society(RINA)
• Standard of NIPPON KAIJI KYOKAI(NK)NIPPON KAIJI KYOKAI(NK)
• GB/T5312 Chinese national standard

Appication：

Seamless steel tubes for manufacturing marine boilers and ovemeaters as we as pressure pipes opf grade I and Ⅱ．

Model N0．of major steel tubes

320，360，410，460，490，etc．

Mechanocal properties：

Chemical compisition:

Seamless steel tube and pipe for ship building usage

Note：

residual elements:Cr≤0.25％，Mo≤0.10％，Ni≤0.30％，Cu≤0.30％aggregate≤0.70％