High Performance Factory Hot Sale SAE4130 30CrMo Cold Drawn High Precision Alloy Seamless Steel Tube
Short Description:
Cold drawn seamless steel pipe is made from a seamless steel hollow. It is further processed by cold drawing over a mandrel, to control the ID, and through dies to control the OD. CDS is superior in surface quality, dimensional tolerances and strength when compared to hot finished seamless tubing.Due to the characteristics of high-precision, in precision machinery manufacturing, auto parts, hydraulic cylinders, construction (steel sleeve) industry has a very wide range of applications.
Size: 16mm-89mm.
W.T.: 0.8mm-18 mm.
Shape: Round.
Production type: Cold drawn or cold rolled.
Length: Single random length/ Double random length or as customer’s actual request max length is 10m
We have been convinced that with joint efforts, the small business between us will bring us mutual benefits. We will guarantee you merchandise top quality and competitive selling price for High Performance Factory Hot Sale SAE4130 30CrMo Cold Drawn High Precision Alloy Seamless Steel Tube, We are now on the lookout ahead to even larger cooperation with abroad consumers dependant on mutual added benefits. When you are interested in almost any of our products, be sure to experience cost-free to make contact with us for more facts.
We have been convinced that with joint efforts, the small business between us will bring us mutual benefits. We will guarantee you merchandise top quality and competitive selling price for China SAE4130 Cold Drawn Seamless Steel Pipe, With the aim of “compete with good quality and develop with creativity” and the service principle of “take customers’ demand as orientation”, we’ll earnestly supply qualified merchandise and good service for domestic and international customers.
|
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 have been convinced that with joint efforts, the small business between us will bring us mutual benefits. We will guarantee you merchandise top quality and competitive selling price.
High Performance Factory Hot Sale SAE4130 30CrMo Cold Drawn High Precision Alloy Seamless Steel Tube
We are now on the lookout ahead to even larger cooperation with abroad consumers dependant on mutual added benefits. When you are interested in almost any of our products, be sure to experience cost-free to make contact with us for more facts.
China SAE4130 Cold Drawn Seamless Steel Pipe
With the aim of “compete with good quality and develop with creativity” and the service principle of “take customers’ demand as orientation”, we’ll earnestly supply qualified merchandise and good service for domestic and international customers.
