E155 E275 Cold Drawn ERW Steel Pipe / ERW Precision Steel Tubes With Hydraulic Testing

Brand Name:Best
Certification:API /CE / ISO /TUV
Model Number:1/2'' -48''
Minimum Order Quantity:1 TONS
Delivery Time:Shipped in 25 days after payment
Payment Terms:L/C, T/T
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Location: Suzhou Jiangsu China
Address: China Factory : Suzhou Industrial Park, JiangSu Province,China
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Production Information : PN-EN 10305-2 Cold drawn steel tubes for precision applications


The advantage of steel tubes for precision applications is the high precision of their manufacturing, the good quality of their surface, and the guaranteed mechanical and technological properties. That is why the pipes are widely used in the machining industry and in the automotive industry. Welded pipes for precision applications are manufactured in the process of cold drawing.


PN-EN10305-2 Delivery condition


DesignationSymbolDescription
Cold drawn / hard+CWithout thermal processing, after the process of cold drawing is finished
Cold drawn / soft+LCAfter final thermal processing, appropriate drawing
Cold drawn and annealed+SRAfter the final cold drawing process and annealing thermal processing in a controlled atmosphere
Annealed+AAfter the final cold drawing process, the pipes are annealed in a controlled atmosphere
Normalized+NAfter the final cold drawing process, the pipes are normalized in a controlled atmosphere

Mechanical properties in room temperature


Steel gradeMaximum values depending on the delivery condition
+C+LC+SR+A+N
Steel symbolRmMPaA %RmMPaA %RmMPaReHMpaA %RmMPaA %Rm MPaReHMpaA %
E1554006350103502451826028270 do 41015528
E1954206370103702601829028300 do 44019528
E2354906440104403251431525340 do 48023525
E275560551085103751239021510 do 55027521
E355640459065904351045022490 do 63035522

Chemical composition (ladle analysis)


Steel grade% of the mass
Steel symbolC maxSi maxMn maxP maxS max
E1550,110,350,700,0250,025
E1950,150,350,700,0250,025
E2350,170,351,200,0250,025
E2750,210,351,400,0250,025
E3550,220,351,600,0250,025

Inspection and test list


Inspection or test typeTest frequency
Internal testsAcceptance test
MandatoryChemical analysisMM
Tensile testingMOne per tested batch
Dimension verificationMM
Visual inspectionMM
OptionalFlattening test or expansion test (option 18)MOne per tested batch
Roughness testingNot applicableOne per tested batch
NDT of the weld in order to identify any longitudinal discontinuitiesNot applicableIndividual
NDT in order to detect any leaks

PN-EN 10305-2 Cold drawn steel tubes for precision applications Pictures


China E155 E275 Cold Drawn ERW Steel Pipe /  ERW Precision Steel Tubes With Hydraulic Testing supplier

E155 E275 Cold Drawn ERW Steel Pipe / ERW Precision Steel Tubes With Hydraulic Testing

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