High Precision Tolerance Carbon Steel Seamless Thin Wall Tube Tubing

Product Name |
small diameter seamless carbon steel tube |
Material |
10#,20#,45#,Q345,A106-B,20Cr,15CrMo,St37,St42,ASTM 4140 etc. |
Standard |
JIS,GB,ASTM,DIN |
Technique |
Cold Rolled |
OD |
10~335mm,1/2"~12" |
Wall Thickness |
2~25mm,SCH10~XXS |
Length |
5.8m~12m/customized design |
Surface Treatment |
black painting, varnish, oil, galvanized, anti corrosion coatings |
Packaging |
1. Bundle packing. 2. Bevelled end or plain end or warnished as per buyer's required. 3. Marking: as per customer's requests. |
MOQ |
1 ton for normal material |
Payment Terms |
T/T,L/C etc |
Testing |
Chemical Component Analysis, Mechanical Properties, Exterior Size Inspection, hydraulic testing etc. |
Application |
Structure pipe; High and low pressure boiler tube; Liquid delivery; Seamless steel pipe for petroleum cracking ,Oil pipe,Gas pipe |
Advantages |
1.Reasonable price with excellent quality 2.Abundant stock and prompt delivery 3.Rich supply and export experience, sincere service 4.Reliable forwarder, 2-hour away from port. |












Delivery Status |
Symbol |
Description |
Cold Finished(hard) |
BK(+C) |
Tubs do not undergo heatmetn following the final cold forming and thus,have a rather high resistance to deformation |
Cold Finished(soft) |
BKW(+LC) |
The final heat treatment is followed by cold drawing involving limited deformation.Appropriate further process allows a certainer degree of cold forming (e.g. bending ,expanding) |
Cold Finished and stress -relieved |
BKS(+SR) |
Hear treatment is applied following the last cold forming process.Subject to appropriate processing conditions ,the increase in the residual stresses involved enables both forming and machining to a certain degree. |
Annealed |
GBK(+A) |
The last cold forming process is followed by annealing in a controlled atmosphere . |
Normalized |
NBK(+N) |
The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |

COLD ROLLED WORKSHOP :
1.Production lines 12 ,professional production team,ensure quality and delivery time
2.Tolerance:OD&ID±0.1mm,or as customer's requirements.
3.Stable product quality , inspection 100%before delivery




Packing Details : Bundles with steel straip or Wooden box ,as customers' request

1. Bare Bundles

2. Hex bundles with steel straip and woven sack wrapping

3. Wooden box

Standard Exporting Seaworthy Packing
1.20ft container: 26tons (Can load 5.8M Max)
2.40ft container: 26tons (Can load 11.8M Max)
3.by bulk vessel or as your requirements

Exporting to All over the world
Our steel pipes exported to many countries Germany, South Korea, Russia, the Philippines,India, Egypt, the United Kingdom and so on,gain the trust of customers.


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