Online Exporter High Quality Alloy Steel Tube Cold Rolled 4130 4135 4140 Seamless Steel Pipe Tube
Short Description:
Trustworthy good quality and excellent credit score standing are our principles, which will help us at a top-ranking position. Adhering towards the tenet of “quality first, buyer supreme” for Online Exporter High Quality Alloy Steel Tube Cold Rolled 4130 4135 4140 Seamless Steel Pipe Tube, We welcome new and old shoppers from all walks of lifetime to call us for future organization relationships and mutual achievements!
Trustworthy good quality and excellent credit score standing are our principles, which will help us at a top-ranking position. Adhering towards the tenet of “quality first, buyer supreme” for , As a way to use the resource on the expanding info in international trade, we welcome prospects from everywhere on the web and offline. In spite on the high quality items we provide, effective and satisfying consultation service is supplied by our qualified after-sale service group. Item lists and thorough parameters and any other info weil be sent for you timely for the inquiries. So be sure to make contact with us by sending us emails or call us when you’ve got any questions about our organization. ou could also get our address information from our site and come to our enterprise. We get a field survey of our merchandise. We are confident that we are going to share mutual accomplishment and create solid co-operation relations with our companions within this market place. We’re seeking forward for your inquiries.
|
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
Trustworthy good quality and excellent credit score standing are our principles, which will help us at a top-ranking position. Adhering towards the tenet of “quality first, buyer supreme” for Online Exporter High Quality Alloy Steel Tube Cold Rolled 4130 4135 4140 Seamless Steel Pipe Tube, We welcome new and old shoppers from all walks of lifetime to call us for future organization relationships and mutual achievements!
4130 4135 4140 Seamless Steel Pipe Tube, As a way to use the resource on the expanding info in international trade, we welcome prospects from everywhere on the web and offline. In spite on the high quality items we provide, effective and satisfying consultation service is supplied by our qualified after-sale service group. Item lists and thorough parameters and any other info weil be sent for you timely for the inquiries. So be sure to make contact with us by sending us emails or call us when you’ve got any questions about our organization. ou could also get our address information from our site and come to our enterprise. We get a field survey of our merchandise. We are confident that we are going to share mutual accomplishment and create solid co-operation relations with our companions within this market place. We’re seeking forward for your inquiries.
