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High Pressure Annealed Pipe Seamless DIN2391C ST52.4 NBK Phosphating Cold Drawn DNV GL

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ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD

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Brand Name : HDT

Model Number : ST37.4, ST52.4

Certification : ABS, BV, LR,TUV,DNV,IEI,IGI

Place of Origin : China(Mainland)

MOQ : 5T

Price : 800 - 9000 USD / ton

Payment Terms : L/C, T/T, Western Union

Supply Ability : About 10000 ton / month

Delivery Time : 60-75days

Packaging Details : seaworthy packing for exporting

Steel grade : ST37.4, ST52.4

Application : Heat Exchanger Tube, Boiler Tube

Standard : DIN 2391C

Surface : NBK+Phosphating

3rd Party Inspection : BV,SGS

OD : 4-600mm

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High Pressure Seamless Boiler tube DIN2391C ST52.4 NBK + Phosphating Precision Cold Drawn DNV.GL Approved

DIN2391 Precision Cold Drawn Seamless Pipes and Tubes, Gr St35 St45 St52 St37.4, Cold Finished Seamless Pipe use for Hydraulic and Pneumatic.

Delivery Status: NBK (+N) BKW (+LC) GBK (+A) BKS (+SR) BK (+C) OD x WT = 4~120 x 0.5~15mm

DIN2391 St52.4+N Phosphated Hydraulic Tube

Normalized NBK

The last cold forming process is followed by annealing above the upper transformation point in a controlled

atmosphere.

Chemical Composition:

Steel grade		Chemical composition, as a percentage by mass
Symbol	Material number	C max.	Si max.	Mn	P max.	S max.
St 30 Si	1.0211	0.10	0.30	<=0.55	0.025	0.025
St 30 Al	1.0212	0.10	0.05	<=0.55	0.025	0.025
St 35	1.0308	0.17	0.35	<=0.40	0.025	0.025
St 45	1.0408	0.21	0.35	<=0.40	0.025	0.025
St 52	1.0580	0.22	0.55	<=1.60	0.025	0.025
The following alloying elements may be added: Nb: <=0,03%; Ti: <=0,03%; V: <=0,05%; Nb + Ti + V: <=0,05%.

High Pressure Annealed Pipe Seamless DIN2391C ST52.4 NBK Phosphating Cold Drawn DNV GL

Certification

Product Tags:

bright annealed tube

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