Cheapest Price 4140 4130 30CrMo4 42CrMo4 35CrMo Chrome Moly Alloy Steel Pipe
Short Description:
The consumer fulfillment is our primary goal. We uphold a consistent level of professionalism, top quality, credibility and service for Cheapest Price 4140 4130 30CrMo4 42CrMo4 35CrMo Chrome Moly Alloy Steel Pipe, sincerity and strength ,constantly preserve approved superior quanlity ,welcome to our factoty for pay a visit to and instruction and organization.
The consumer fulfillment is our primary goal. We uphold a consistent level of professionalism, top quality, credibility and service for , Our company insists on the principle of “Quality First, Sustainable Development”, and takes “Honest Business, Mutual Benefits” as our developable goal. All members sincerely thank all old and new customers’ support. We are going to keep working hard and offering you the highest-quality items and service.
|
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
The consumer fulfillment is our primary goal. We uphold a consistent level of professionalism, top quality, credibility and service for Cheapest Price 4140 4130 30CrMo4 42CrMo4 35CrMo Chrome Moly Alloy Steel Pipe, sincerity and strength ,constantly preserve approved superior quanlity ,welcome to our factoty for pay a visit to and instruction and organization.
Cheapest Price Alloy Steel Pipe and 34CrMo4 Alloy Tube, Our company insists on the principle of “Quality First, Sustainable Development”, and takes “Honest Business, Mutual Benefits” as our developable goal. All members sincerely thank all old and new customers’ support. We are going to keep working hard and offering you the highest-quality items and service.
