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Heat Exchanger Boiler Steel Tube Standard DIN2391 ST37.4 NBK 12*1MM

Categories Boiler Steel Tube
Brand Name: HDT
Place of Origin: Zhangjiagang,China
MOQ: 5T
Delivery Time: 60-75days
Price: 800 - 9000 USD / ton
Supply Ability: About 10000 ton / month
Packaging Details: seaworthy packing for exporting
Payment Terms: L/C, T/T, Western Union
Product Name: Carbon Steel Boiler Tube Heat Exchanger Seamless Tube
Application: Boiler Heat Exchanger
Standard: DIN2391
Material: ST37.4, ST52.4
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Heat Exchanger Boiler Steel Tube Standard DIN2391 ST37.4 NBK 12*1MM

Carbon Steel Boiler Tube Heat Exchanger Seamless Tube DIN2391 ST37.4 NBK 12*1MM


Carbon Steel Boiler Tube Heat Exchanger Seamless Tube DIN2391 ST37.4 NBK 12*1MM


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 Si1.02110.100.30<=0.550.0250.025
St 30 Al1.02120.100.05<=0.550.0250.025
St 351.03080.170.35<=0.400.0250.025
St 451.04080.210.35<=0.400.0250.025
St 521.05800.220.55<=1.600.0250.025

The following alloying elements may be added:
Nb: <=0,03%; Ti: <=0,03%; V: <=0,05%; Nb + Ti + V: <=0,05%.

Steel gradeChemical Composition(%):
Steel nameSteel numberC maxSi maxMnP maxS maxAl min
E2151.02120.100.050.700.0250.0250.025
E2351.03080.170.351.200.0250.025-
E3551.05800.220.551.600.0250.025-
Quality Heat Exchanger Boiler Steel Tube Standard DIN2391 ST37.4 NBK 12*1MM for sale
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