Strict quality control system and perfect after-sales service system are always our top concern which can guarantee and track the quality of our products from raw materials procurement, production processes, finish products as well as after-sales service.
Test:SGS or Third- party test
Delivery: 5-7days after deposit
Precision seamless tube is a kind of after cold drawn or hot rolling process of a kind of high precision steel pipe materials, precision steel tube wall inside and outside the without oxidation layer, under high pressure without leakage, high precision, high finish, cold bending deformation, flaring, flattening without cracks a bit, it is mainly used to produce pneumatic or hydraulic components products, such as a cylinder or cylinder, can be a seamless tube, There are also welding tube precision steel pipe chemical composition, carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, Chromium Cr, seamless steel pipe compared with round steel and other solid steel, in the bending and torsion strength at the same time, lighter weight, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts.
Round steel → perforation → pickling → cold rolling → saw head → bundling
Seamless tube → pickling → cold rolling → saw head → bundling
High precision, saving the loss of mechanical processing users.
Specifications, a wide range of applications.
Cold rolled products have high precision, good surface quality and good straightness.
The inner diameter of steel pipe can be made into hexagonal shape.
Steel pipe performance is superior, the metal is more dense.
| Chemical composition of commonly used 20#, 45# precision seamless tube | ||||||
| Grade | Chemical composition% | |||||
| C | Si | Mn | S | P | Cr | |
| 10# | 0.07-0.13 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | |
| 20# | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | |
| 35# | 0.32-0.39 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | |
| 45# | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | |
| 40Cr | 0.37-0.44 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | 0.08-1.10 |
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Conventional Parameters |
|
|
OD |
20-500mm |
|
Length |
5.8-12m |
|
Thickness |
0.5-40 mm |
|
Material |
ST35(E235)、ST37 、ST45(E255)、ST52(E355)、10#、20#、35#、45# |
|
Tolerance |
±0.5% |
|
Processing Service |
Welding, Punching, Cutting, Bending, Decoiling |
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Payment term |
T/T (30% Deposit) |
|
MOQ |
5Tons |
|
Packing |
Standard Sea-worthy Packing |
|
Standard |
AISI,ASTM,DIN,JIS,GB ,JIS,SUS,EN,etc |
The inner and outer walls of the steel pipe have no oxide layer, withstand high pressure, no leakage, high precision, high finish, no deformation in cold bending, flaring, no cracks in flattening, and anti-rust treatment on the surface. Is widely used in the hydraulic system in steel tube, injection molding machine in steel tube, hydraulic press in steel, shipbuilding, steel pipe, EVA foaming, hydraulic machinery, precision hydraulic steel pipe cutting machine, shoe-making machinery, hydraulic equipment, high pressure tubing, hydraulic tubing, card sets of joints, pipe joints, rubber machinery, forging machinery, casting machinery, engineering machinery, automotive high pressure steel pipe concrete pump, sanitation vehicle , automobile industry, shipbuilding industry, metal processing, military, diesel engine, internal combustion engine, air compressor, construction machinery, agricultural and forestry machinery, etc., can completely replace the same standard of imported seamless steel pipe.
