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Precision tube is a high-precision, high-brightness seamless steel
tube produced through cold drawing or cold rolling processes. Its
inner and outer diameter dimensions can be accurate to within
0.2mm. It ensures bending and torsional strength while being light
in weight, so it is widely used in manufacturing precision
mechanical parts and engineering structures. It is also commonly
used to produce various conventional weapons, barrels, shells,
bearings, etc.
Precision steel pipe is a high-precision cold-drawn seamless steel
pipe with the characteristics of high accuracy in inner and outer
diameter dimensions, wall thickness, good surface finish, smooth
inner and outer surfaces, and no impact burrs. Precision steel
pipes are usually made of carbon steel, alloy steel, stainless
steel and other materials, and are widely used in manufacturing
machines, automobiles, aerospace, health equipment and other
fields.
Mechanical parts manufacturing: As a raw material for mechanical
parts processing, precision steel pipes are widely used in the
manufacturing of high-precision shafts, tubes, rollers, pins, etc.
Automobile manufacturing: Precision steel pipes are used in
components such as cylinders, sensors, fuel injection systems, and
exhaust systems in automobile manufacturing.
Aerospace manufacturing: Due to the characteristics of high
precision, thermal strength, corrosion resistance and high wear
resistance, precision steel pipes are widely used in engines,
leading edge flaps, missile control systems and other parts in the
aerospace industry.
Instrument and medical equipment manufacturing: Precision steel
pipes are strong, corrosion-resistant and pressure-resistant. They
are widely used in high-precision instrument manufacturing,
pharmaceutical pipelines, medical equipment and other fields.
Zhengde Precision steel pipe is a key material used in
manufacturing high-precision and high-performance mechanical
equipment. It has excellent physical and mechanical properties and
is widely used in aerospace, automobile manufacturing,
petrochemical and other fields.
Material characteristics: 1. High precision: Precision steel pipes have high diameter
accuracy and wall thickness accuracy, and can meet the accuracy
requirements of various mechanical equipment. 2. Excellent
mechanical properties 3. Good corrosion resistance 4. Excellent
processing performance
Production process: The production process of precision steel pipes mainly includes
steps such as cold drawing, cold rolling and cold extrusion.
1. Cold drawing: The most common production process of precision
steel pipes is cold drawing, which means cold processing of
hot-rolled steel pipes, and drawing them to make the diameter and
wall thickness meet the requirements.
2. Cold rolling: The cold rolling process is to cold process the
hot-rolled steel billet. Through multiple passes of rolling and
drawing, the size of the steel pipe is gradu.
Application fields
Precision steel pipes are widely used in aerospace, automobile
manufacturing, petrochemical and other fields, with the following
typical applications:
1. Aerospace field: Precision steel pipes are used to manufacture
high-pressure, high-temperature hydraulic systems and gas systems
such as aircraft engines, missiles and rockets.
2. Automobile manufacturing field: Precision steel pipes are used
to manufacture key components such as automobile chassis, engines
and transmissions to improve the safety and reliability of
automobiles.
3. Petrochemical industry: Precision steel pipes are used in oil
and natural gas extraction and transportation pipelines. They have
the characteristics of high pressure resistance and corrosion
resistance to ensure the safe operation of petrochemical equipment.
4. Machinery manufacturing field: Precision steel pipes are used to
manufacture various precision instruments, meters and mechanical
parts, such as high-precision bearings, instrument cases, etc.ally
adjusted and controlled.
3. Cold extrusion: The cold extrusion process is to heat the steel
billet to an appropriate temperature and then extrude it through a
special die to form a hollow pipe. The cold extrusion process can
produce precision steel pipes with uniform wall thickness and high
internal and external surface finish.
Thickness±10% (smallest±0.12mm) | ||||||||
0.5 | -0.8 | 1 | -1.2 | 1.5 | -1.8 | 2 | ||
outer diameter | Inner diameter (nominal value and allowable deviation) | |||||||
Size | Allowable deviation | |||||||
4 | ±0.10 | 3±0.30 | 2.4±0.30 | 2±0.30 | ||||
6 | 5±0.25 | 4.4±0.25 | 4±0.25 | 3.6±0.30 | ||||
8 | 7±0.20 | 6.4±0.20 | 6±0.20 | 5.6±0.30 | 5±0.30 | 4.4±0.35 | 4±0.35 | |
10 | 9±0.15 | 8.4±0.15 | 8±0.20 | 7.6±0.25 | 7±0.25 | 6.4±0.30 | 6±0.30 | |
12 | 11±0.15 | l0.4±0.15 | 10±0.15 | 9.6±0,20 | 9±0.20 | 8.4±0.25 | 8±0.25 | |
14 | 13±0.10 | 12.4±0.10 | 12±0.10 | 11.6±0.15 | 11±0.15 | 10.4±0.20 | 10±0.20 | |
16 | 15±0.10 | 14.4±0.10 | 14±0.10 | 13.6±0.10 | 13±0.10 | 12.4±0.15 | 12±0.15 | |
25 | 24±0.10 | 23.4±0.10 | 23±0.10 | 22.6±0.10 | 22±0.10 | 21.4±0.10 | 21±0.10 | |
-26 | 25±0.10 | 24.4±0.10 | 24±0.10 | 23.6±0.10 | 23±0.10 | 22.4±0.10 | 22±0.10 | |
28 | 27±0.10 | 26.4±0.10 | 26±0.10 | 25.6±0.10 | 25±0.10 | 24.4±0.10 | 24±0.10 | |
30 | 29±0.10 | 28.4±0.10 | 28±0.10 | 27.6±0.10 | 27±0.10 | 26.4±0.10 | 26±0.10 | |
35 | 34±0.15 | 33.4±0.15 | 33±0.15 | 32.6±0.15 | 32±0.15 | 31.4±0.15 | 3l±0.15 | |
38 | 37±0.15 | 36.4±0.15 | 36±0.15 | 35.6±0.15 | 35±0.15 | 34.4±0.15 | 34±0.15 | |
40 | 39±0.15 | 38.4±0.15 | 38±0.15 | 37.6±0.15 | 37±0.15 | 36.4±0.15 | 36±0.15 | |
45 | 43±0.20 | 42.6±0.20 | 42±0.20 | 41.4±0.20 | 41±0.20 | |||
50 | 48±0.20 | 47.6±0.20 | 47±0.20 | 46.4±0.20 | 46±0.20 | |||
55 | ±0.25 | 53±0.25 | 52.6±0.25 | 52±0.25 | 51.4±0.25 | 5l±0.25 | ||
60 | 58±0.25 | 57.6±0.25 | 57±0.25 | 56.4±0.25 | 56±0.25 | |||
70 | 68±0.30 | 67.6±0.30 | 67±0.30 | 66.4±0.30 | 66±0.30 | |||
76 | ±0.35 | 74±0.35 | 73.6±0.35 | 73±0.35 | 72.4±0.35 | 72±0.35 | ||
80 | 78±0.35 | 77.6±0.35 | 77±0.35 | 76.4±0.35 | 76±0.35 | |||
90 | ±0.40 | 87±0.40 | 86.4±0.40 | 86±0.40 | ||||
100 | ±0.45 | 96.4±0.45 | 96±0.45 | |||||
110 | ±0.50 | 106±0.50 | ||||||
120 | 116±0.50 | |||||||
150 | ±0.75 | |||||||
180 | ±0.90 | |||||||
200 | ±1.0 |
Quality first: production and inspection in strict accordance with
production standards;
Price advantage: discounts based on real market prices;
Transaction security: There will be no loss of customer funds;
After-sales guarantee: the customer's problem is our problem;
Long-term cooperation: quality assurance, price advantage, sincere
service can last for a long time.
Shandong Zhengde Metal Manufacturing Co., Ltd. is a production and sales company integrating hot-rolled steel
coils, cold-rolled steel coils, galvanized steel coils,
color-coated steel coils, section steel, steel pipes, steel wires,
metal mesh, stainless steel, aluminum, copper and other metal
products integrated large enterprises. Five production and sales
bases have been formed in Binzhou, Liaocheng, Wuxi, Tianjin, Jinan
and Tai'an, with more than 100 production lines, 4 nationally
recognized laboratories, 2 technical engineering centers, and 5
enterprise technology centers. Products are exported to more than
50 countries and regions such as North America, South America,
Europe, Africa, Oceania, Middle East, and Southeast Asia.