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pricison seamless steel pipe

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联系人 Mr. jack

dongchang street, Liaocheng, Shandong

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产品规格

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Seamless Precision Steel Tubes according to EN ******1 Standard: DIN***1 part 2 , DIN EN******1, DIN****5 etc;
Material: ST*5,ST*5,ST*2.
Manufacturing method: cold-rolled / cold-drawn
Delivery condition: BK,BKS,SR,GBK,NBK.
 
Certificate
Factory Certification: 2.2 according to EN
Acceptance Test Certificate:3.1 according to EN ****4
 
Packing:
in bundles tied with steel strips. External packing by wooden cases if the wall thickness/OD ratio is low.
Oil-coating is generally necessary especially for export.
 
Application: 
Used in hydraulic & pneumatic cylinder ,automobile and other mechanical device .Feature: high precision and high brightness, the inner and outer surface of the tubes have high cleanness without oxid, mechanical properties of the final tubes also come out excellent, promising no leakage under high pressure, no deformation after cold-bent and no cracks when flaring and flattening, ensuring the efficient operation in all service.
Chemical composition(%)
Code
number
Material number Mfg. Process C
max
Si
max
Mn
max
P
max
S
max
St*5 1.***8 S 0.*7 0.*5 0.4 0.*5 0.*5
St*5 1.***8 S 0.*1 0.*5 0.4 0.*5 0.*5
St*2 1.***8 S 0.*2 0.*5 1.6 0.*5 0.*5
  Mechanical and technological properties
Code number Material number Cold-finished hard(BK) Cold-finished/soft (BKW) 3)
Rm(Mpa) A(%) Rm(Mpa) A(%)
St *5/E**5 1.***8 **0 6 **0 *0
St *5 1.***8 **0 5 **0 8
St *2/E**5 1.***8 **0 4 **0 7
 
Code number Cold finished (soft)(BKW) Annealed (GBK) Normalized (NBK)
Rm(Mpa) ReH (Mpa) A(%) Rm(Mpa) A(%) Rm (Mpa) ReH (Mpa) A(%)
St *5/E**5 **0 **5 *4 **5 *5 ******0 **5 *5
St *5 **0 **5 *2 **0 *1 ******0 **5 *1
St *2/E**5 **0 **0 *0 **0 *2 ******0 **5 *2
   

国家: China
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產品組 : steel pipe

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