Seamless steel pipe for ship building usage from China manufacturer

Seamless steel pipe for ship building usage

Place of Origin:

Hebei, China (Mainland)


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Seamless steel pipe for ship building usage

Seamless steel pipe for ship building usage

The Seamless steelpipe for ship building usage are mainly used for Level 1& Level 2pressure pipe in piping system, boiler and super-heated unit ofshipbuilding.

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 N0of major steel tubes: 320,360,410,460,490,etc

Types of steel tubes	Outer diameters		wall thickness
Cold-rolled tubes	Rube size(mm)	tolerances (mm)	Tube sizes (mm)	Tolerances (mm)
	3050	±0.3	≤30	±10
	50219	±0.8	≤30	±10
Hot-rolled tubes	219	±1.0	20	±10

Mechanocal properties:

Standard code	Models of steel tubes	Tensile strength(MPa)	Yield strength(MPa)	Elongation()
GB/T5312	320	320410	≥195	≥25
	360	360480	≥215	≥24
	410	410530	≥235	≥22
	460	460580	≥265	≥21
	490	490610	≥285	≥21

Chemical compisition:

Standard code	Models of steel tubes	Chemical compisition()
Standard code	Models of steel tubes	C	Si	Mn	P	S
GB/T5312	320	≤0.16	≤0.35	0.400.70	≤0.035	≤0.035
	360	≤0.17	≤0.35	0.400.80	≤0.035	≤0.035
	410	≤0.21	≤0.35	0.401.20	≤0.035	≤0.035
	460	≤0.22	≤0.35	0.801.40	≤0.035	≤0.030
	490	≤0.23	≤0.35	0.801.50	≤0.035	≤0.030