Fast delivery Factory Wholesale Seamless Carbon St52 Ck45 Rolled Steel Pipe Steel Tube
Short Description:
We are also focusing on improving the stuff management and QC system so that we could keep great advantage in the fiercely-competitive business for Fast delivery Factory Wholesale Seamless Carbon St52 Ck45 Rolled Steel Pipe Steel Tube, We welcome all of the purchasers and pals to contact us for mutual added benefits. Hope to do additional business enterprise along with you.
We are also focusing on improving the stuff management and QC system so that we could keep great advantage in the fiercely-competitive business for CDS Seamless SAE4130 4140 Drawn Steel Pipe and Seamless Carbon St52 Ck45 Rolled Steel Pipe, We warmly welcome domestic and overseas customers to visit our company and have business talk. Our company always insists on the principle of “good quality, reasonable price, the first-class service”. We are willing to build long-term, friendly and mutually beneficial cooperation with you.
|
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
We are also focusing on improving the stuff management and QC system so that we could keep great advantage in the fiercely-competitive business for Fast delivery Factory Wholesale Seamless Carbon St52 Ck45 Rolled Steel Pipe Steel Tube, We welcome all of the purchasers and pals to contact us for mutual added benefits. Hope to do additional business enterprise along with you.
Fast delivery CDS Seamless SAE4130 4140 Drawn Steel Pipe and Seamless Carbon St52 Ck45 Rolled Steel Pipe, We warmly welcome domestic and overseas customers to visit our company and have business talk. Our company always insists on the principle of “good quality, reasonable price, the first-class service”. We are willing to build long-term, friendly and mutually beneficial cooperation with you.
