Specifications

1.high quality,competitive price and delivery fast
2.For marine boiler with superheater and I, II, III grade pressure piping

Standard: 
Det Norske Veritas (DNV) specification ----------- Det Norske Veritas (DNV)

Lloyd's Register(LR) specification -------- Lloyd's Register (LR)

American Bureauof Shipping (ABS) specification ------------ American Bureau of Shipping (ABS)

GermanischerLloyd (GL) specification ----- Germanischer Lloyd (GL)

Bureau Veritas(BV) specification ------------- Bureau Veritas (BV)

Nippon KaijiKyokai (NK) specification ---------- Nippon Kaiji Kyokai (NK)

Korean Registerof Shipping (KR) specification ------------- Korean Register of Shipping (KR)

RegistroItaliano Navale (RINA) specification -------- Italiano Navale (RINA)

ChinaClassification Society for Materials and Welding ----- China Classification Society(CCS)

GB/T5312-------------------------China NationalStandard
GB/T 14976------------------------China NationalStandard

Purpose:
For marine boiler with superheater and I, II, III grade pressure piping tube manufacturing, as well as liquefied petroleum gas transportation and bulkchemical manufacturing marine pipe.

Main productionsteel model: 
320,360,410,00Crl7Nil4Mo2,0Cr18Ni9Ti Etc.Afterconsultation, can also supply other steel grades, types of steel pipe.

Mechanicalproperties:

Category	Grade	Tensile strength (MPa)	Yield strength (MPa)	Elongation (%)
Carbon and carbon-manganese steel	320	320~440	≥195	≥25
	360	360~480	≥215	≥24
	410	410~530	≥235	≥22
Austenitic stainless steel	00Cr17Ni14Mo2	≥480	≥175	≥35
	0Cr18Ni9Ti	≥520	≥205	≥35

 

Chemicalcomposition:

Category	Grade	C	Si	Mn	P	S	Cr	Mo	Ni	Ti
Carbon and carbon-manganese steel	320	≤0.16	≤0.35	0.40~0.70	≤0.035	≤0.035	≤0.25	≤0.10	≤0.30	/
	360	≤0.17	≤0.35	0.40~0.80	≤0.035	≤0.035	≤0.25	≤0.10	≤0.30	/
	410	≤0.21	≤0.35	0.40~1.20	≤0.035	≤0.035	≤0.25	≤0.10	≤0.30	/
Austenitic stainless steel	00Cr17Ni14Mo2	≤0.030	≤1.00	≤2.00	≤0.030	≤0.030	16.00~18.00	2.00~3.00	12.00~15.00	/
	0Cr18Ni9Ti	≤0.08	≤1.00	≤2.00	≤0.030	≤0.030	17.00~19.00	/	8.00~11.00	/