Top Grade SAE1020 SAE1045 SAE4140 SAE4340 SAE4145h High Precision Cold Rolled Seamless Steel Honed Tube Round Steel Pipe
Short Description:
Dependable high-quality and good credit rating standing are our principles, which will help us at a top-ranking position. Adhering into the tenet of “quality first, consumer supreme” for Top Grade SAE1020 SAE1045 SAE4140 SAE4340 SAE4145h High Precision Cold Rolled Seamless Steel Honed Tube Round Steel Pipe, We welcome new and aged buyers from all walks of lifestyle to call us for foreseeable future business associations and reach mutual results!
Dependable high-quality and good credit rating standing are our principles, which will help us at a top-ranking position. Adhering into the tenet of “quality first, consumer supreme” for SAE1045 Seamless Pipe and SAE1045 Seamless Tube, We have now established long-term, stable and good business relationships with many manufacturers and wholesalers around the world. Currently, we are looking forward to even greater cooperation with overseas customers based on mutual benefits. Make sure you feel free to contact us for more details.
|
Standard |
Grade |
Chemical Components (%) |
|||||||
|
|
|
C |
Si |
Mn |
P |
S |
Mo |
Cr |
V |
|
ASTM A519 |
4130 |
0.28-0.33 |
0.15-0.35 |
0.40-0.60 |
≤0.040 |
≤0.040 |
0.15-0.25 |
0.8-1.10 |
/ |
|
Grade |
Delivery |
Tensile Strength |
Yield Strength |
Elongation |
Hardness |
|
|
Condition |
(Mpa) Min. |
(Mpa) Min. |
(%) Min. |
(HB) Min. |
|
4130 |
HR |
621 |
483 |
20 |
89 |
|
|
SR |
724 |
586 |
10 |
95 |
|
|
A |
517 |
379 |
30 |
81 |
|
|
N |
621 |
414 |
20 |
89 |
Annealing
After the goods are cold drawn to sizes, the tubes are put on annealing furnace for heat treatment and normalising.
Straightening
Post annealing, the goods are passed through a seven roller straightening machine to achieve proper straightening of the tubes.
Eddy current
Post straightening, each tube is passed through eddy current machine to detect for surface cracks and other defects . Only the tubes that pass eddy current are fit for delivery to customers.
Finishing
Each tube is either oiled with corrosion resistant oil or varnished for surface protection and corrosion resistant as per customers requirement, each tube end is covered by plastic end caps to avoid damage in transit, the marking and specs are put and the goods are ready for dispatch.
|
Designation |
Symbol |
Description |
|
Cold drawn/hard |
+C |
No heat treatment after the final cold drawing process |
|
Cold drawn/soft |
+LC |
After the final heat treatment there is a suitable drawing pass |
|
Cold drawn and stress relieved |
+SR |
After the final cold drawing process there is a stress relief heat treatment in a controlled atmosphere |
|
Annealed |
+A |
After the final cold drawing process the tubes are annealed in a controlled atmosphere |
|
Normalized |
+N |
After the final cold drawing operation the tubes are normalized in a controlled atmosphere |
Cold Drawn Carbon steel seamless pipes are extensively applied in the nuclear device, gas conveyance, petrochemical, shipbuilding and boiler industries, with characteristics of high corrosion resistance combined with suitable mechanical properties.
- Nuclear device
- Gas conveyance
Dependable high-quality and good credit rating standing are our principles, which will help us at a top-ranking position. Adhering into the tenet of “quality first, consumer supreme” for Top Grade SAE1020 SAE1045 SAE4140 SAE4340 SAE4145h High Precision Cold Rolled Seamless Steel Honed Tube Round Steel Pipe, We welcome new and aged buyers from all walks of lifestyle to call us for foreseeable future business associations and reach mutual results!
Top Grade SAE1045 Seamless Pipe and SAE1045 Seamless Tube, We have now established long-term, stable and good business relationships with many manufacturers and wholesalers around the world. Currently, we are looking forward to even greater cooperation with overseas customers based on mutual benefits. Make sure you feel free to contact us for more details.
