Large Supply SAE4130 Alloy Steel Tube 30CrMo Cold Drawn Seamless Steel Pipe
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
Our eternal pursuits are the attitude of “regard the market, regard the custom, regard the science” as well as theory of “quality the basic, have faith in the initial and administration the advanced” for Large Supply SAE4130 Alloy Steel Tube 30CrMo Cold Drawn Seamless Steel Pipe, If you are interested in any of our products or wish to focus on a personalized get, make sure you come to feel totally free to contact us. We are looking forward to forming profitable company associations with new clients around the world inside the close to upcoming.
Our eternal pursuits are the attitude of “regard the market, regard the custom, regard the science” as well as theory of “quality the basic, have faith in the initial and administration the advanced” for China SAE4130 Alloy Seamless Steel Pipe, Our company always concentrate on the development of the international market. We now have a lot of customers in Russia , European countries, the USA, the Middle East countries and Africa countries. We always follow that quality is foundation while service is guarantee to meet all 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
Our eternal pursuits are the attitude of “regard the market, regard the custom, regard the science” as well as theory of “quality the basic, have faith in the initial and administration the advanced”
Large Supply SAE4130 Alloy Steel Tube 30CrMo Cold Drawn Seamless Steel Pipe
If you are interested in any of our products or wish to focus on a personalized get, make sure you come to feel totally free to contact us. We are looking forward to forming profitable company associations with new clients around the world inside the close to upcoming.
China SAE4130 Alloy Seamless Steel Pipe
Our company always concentrate on the development of the international market. We now have a lot of customers in Russia , the Middle East countries and Africa countries. We always follow that quality is foundation while service is guarantee to meet all customers.
