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Oil Treated High Precision Seamless Steel Tubes 4mm Small Outer Diameters

Place of Origin China
Brand Name Hongbao
Certification TS16949, ISO9001, OHSAS18001 etc.
Model Number HBPST-1
Minimum Order Quantity 1 ton
Price Negotiable
Packaging Details Seaworthy Wooden box, customized Packing
Delivery Time 30 Days
Supply Ability 60000 MT per Year
Product Details
Shape Round Application Automotive Part, Hydraulic System, High-precsion Machining. Etc.
Payment T/T; L/C Sample Free Sample
Port Shanghai Port Trade Term FOB, EXW, CIF
High Light

precision seamless pipe

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seamless round tubes

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Product Description

Delivery Condition +LC Precision Seamless Steel Standard EN10305-1 Steel Round Pipe

 

Description

Precision seamless steel tube is a high precision steel tube after cold rolling or cold drawing.

 

Main Date

Standard EN10305-1; DIN2391; DIN2445
Material E235, E355, St37.4, St52.4
Outer Diameter Range: 4-120mm
Wall Thickness Range: 0.5-15mm


Delivery Condition 

NBK(+N) After the final cold drawing operation the tubes are normalized in a controlled atmosphere.
BKW(+LC)

After the final heat treatment there is a suitable drawing pass.

 
GBK(+A) After the final cold drawing process the tubes are annealed in a controlled atmosphere.
BK(+C No heat treatment after the final cold drawig process.
BKS(+SR)

After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere.

 

 

Advantage

1. Smaller outer diameters;

2. High precision can be done in small batch production;

3. Cold drawing finished products with high precision and good surface quality.

4. The transverse area of the steel tube is more complicated;

5. Steel pipe performance is superior, metal is more dense.