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OD 4mm Precision Seamless Steel Tubes , Small Diameter Seamless Round Tubes

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
Delivery Condition +C,+LC,+SR,+N,+A Payment T/T; L/C
Sample Free Sample Material E235, E355
Processing Cold Drawn, Cold Rolled Length 18000mm Max.
High Light

seamless steel tube


seamless round tubes

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Product Description

Delivery Condition GBK Precision Seamless Steel Tubes Standard EN10305-1 Steel Round Pipe


What is precision seamless steel tubes?

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


Main Date

Standard: EN10305-1

Material: E235, E355

OD: 4-120mm

WT: 0.5-15mm


Delivery Condition 

GBK(+A): After the final cold drawing process the tubes are annealed in a controlled atmosphere.


Other Delivery Condition aviliable:

BK(+C): No heat treatment after the final cold drawig process.
BKW(+LC): After the final heat treatment there is a suitable drawing pass.
BKS(+SR): After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere.
NBK(+N): After the final cold drawing operation the tubes are normalized in a controlled atmosphere.




Automotive Part,

Hydraulic System,

High-precsion Machining.



OD 4mm Precision Seamless Steel Tubes , Small Diameter Seamless Round Tubes 0