Vessel pipes


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 tubemanufacturing, as well as liquefied petroleum gas transportation and bulkchemical manufacturing marine pipe.


Main productionsteel model 
320
36041000Crl7Nil4Mo20Cr18Ni9Ti 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

320440

≥195

≥25

360

360480

≥215

≥24

410

410530

≥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

0.400.70

≤0.035

≤0.035

≤0.25

≤0.10

≤0.30

/

360

≤0.17

≤0.35

0.400.80

≤0.035

≤0.035

≤0.25

≤0.10

≤0.30

/

410

≤0.21

≤0.35

0.401.20

≤0.035

≤0.035

≤0.25

≤0.10

≤0.30

/

Austenitic stainless steel

00Cr17Ni14Mo2

≤0.030

≤1.00

≤2.00

≤0.030

≤0.030

16.0018.00

2.003.00

12.0015.00

/

0Cr18Ni9Ti

≤0.08

≤1.00

≤2.00

≤0.030

≤0.030

17.00~19.00

/

8.0011.00

/