High Pressure Seamless Boiler Tube DIN2391c St52.4 Nbk + Phosphating Precision Cold Drawn Dnv / Gl Approved

• After-sales Service: Supplied
• Warranty: 30 Years
• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Varnishing
• Model NO.: Heat Exchanger Tube
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Applicaiton: Electric/Nuclear Power
• Applicaiton2: Oil and Gas Exploitation
• Applicaiton3: Oil Refining
• Applicaiton4: Chemical&Fine Chemical Industry
• Applicaiton5: Coal Chemical Industry
• Applicaiton6: Offshore Engineering&Shipbuilding
• Applicaiton7: Seawater Desalination&Water Treatment
• Applicaiton8: Natural Gas
• Applicaiton9: Instrumentation Tubing
• Applicaiton10: Heat Exchanger/Condenser/Heat Transfer/Rradiator
• Applicaiton11: Chemical Fertilizer/Fibre
• Applicaiton12: Sanitary Tube
• Applicaiton13: Aviation&Aerospace
• Applicaiton14: Oilfield
• Applicaiton15: Tanker
• Transport Package: Plywood Case, Bundled with Plastic Bags
• Specification: OD 17.2-168.3mm
• Trademark: EZS
• Origin: China
• HS Code: 73043190
• Production Capacity: 200000 Tons/Year

Product Description

Product Description

Detailed Product Description

Standard:	DIN 2391C NBK+Phosphating	Material:	ST37.4, ST52.4
Usage:	Heat Exchanger Tube, Boiler Tube
High Light:	boiler pipe ,  boiler condensate pipe

 

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%.

 

Steel grade		Chemical Composition(%):
Steel name	Steel number	C max	Si max	Mn	P max	S max	Al min
E215	1.0212	0.10	0.05	0.70	0.025	0.025	0.025
E235	1.0308	0.17	0.35	1.20	0.025	0.025	-
E355	1.0580	0.22	0.55	1.60	0.025	0.025	-