High Quality Hollow Section-Rectangle Tubes
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 5 m.t. m.t.
- Supply Capability:
- Based On Order m.t./month
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- Quality Product
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High Quality Hollow Section-Square Tubes
Usage/Applications Of High Quality Hollow Section-Square Tubes:
It is widely used in building, machine, chemical equipment, automobile industrial, container, it is also applied to agriculture and mine machine.
Standard Of High Quality Hollow Section-Square Tubes：
ASTM A500, GB6728
Steel Grade Of High Quality Hollow Section-Square Tubes:
ASTM A500: A, B, C
GB6728：Q195，Q215，Q235，Q345
Size of High Quality High Quality Hollow Section-Square Tubes:
*Remark: Besides below sizes, we also can arrange production based on requirement of customers
|
Sizee(mm) |
Thickness(mm) |
|
20×10 |
0.6-1.0 |
|
25×12 |
0.6-1.0 |
|
38×19 |
0.6-1.5 |
|
50×25 |
0.6-1.5 |
|
50×30 |
1.6-3.0 |
|
60×40 |
1.5-3.5 |
|
75×50 |
1.5-4.0 |
|
80×40 |
1.5-4.0 |
|
100×50 |
2.0-6.0 |
|
100×60 |
2.0-6.0 |
|
100×75 |
2.0-6.0 |
|
120×60 |
3.0-6.0 |
|
120×80 |
3.0-6.0 |
|
125×50 |
3.0-6.0 |
|
125×75 |
3.0-6.0 |
|
150×50 |
3.0-6.0 |
|
150×75 |
3.0-6.0 |
|
150×100 |
4.0-12 |
|
160×80 |
4.0-6.0 |
|
175×100 |
4.0-12 |
|
200×100 |
4.0-12 |
|
200×150 |
4.0-12 |
|
250×150 |
5.0-12 |
|
300×200 |
5.0-12 |
|
400×200 |
5.0-12 |
Chemical Composition Of High Quality Hollow Section-Square Tubes (%)
|
Chemical Requirement | ||||
|
|
Composition % | |||
|
|
Grade A |
Grade B | ||
|
|
Heat |
Product |
Heat |
Product |
|
Element |
analysis |
analysis |
analysis |
analysis |
|
Carbon max |
0.26 |
0.3 |
0.22 |
0.26 |
|
Manganese max |
… |
… |
1.4 |
1.45 |
|
Phosphorus, max |
0.035 |
0.045 |
0.03 |
0.04 |
|
Sulfur max |
0.035 |
0.045 |
0.02 |
0.03 |
|
Copper, when copper steel is specified, min |
0.2 |
0.18 |
0.2 |
0.18 |
|
Where an ellipsis (...)appears in this table, there is no requirement | ||||
|
For each reduction of 0.01 percentage point below the specified maximum for carton, and increase of 0.06 percentage point above the specified maximum for manganese is permitted, up to a maximum of 1.50% by heat analysis and 1.6% by product analysis | ||||
Mechanical Properties Of High Quality Hollow Section-Square Tubes
|
Tensile Requirement | ||
|
|
Grade A |
Grade B |
|
Tensile strength, min, psi (Mpa) |
48000 (400) |
70000 (483) |
|
Yield strength, min, psi (Mpa) |
36000 (250) |
50000 (345) |
|
Elongation in 2 in. (50.8mm), min, % |
23 |
23 |
GB6728：
|
Steel Grade |
CHEMICAL COMPOSITION |
MECHANICAL PROPERTIES | ||||||
|
|
C (%) |
Si (%) |
Mn (%) |
P(%) Max |
S (%) Max |
YS(Mpa) Min |
TS(Mpa) Min |
El (%) Min |
|
Q195 |
0.06-0.012 |
0.3 |
0.25-0.5 |
0.45 |
0.5 |
195 |
315 |
22 |
|
Q215 |
0.09-0.15 |
0.3 |
0.25-0.55 |
0.45 |
0.5 |
215 |
335 |
22 |
|
Q235 |
0.12-0.22 |
0.3 |
0.3-0.7 |
0.45 |
0.45 |
235 |
375 |
20 |
|
Q345 |
0.20 |
0.55 |
1.0-1.6 |
0.45 |
0.45 |
345 |
510 |
21 |
Packaging & Delivery Of H High Quality Hollow Section-Square Tubes:
Packed in bundles, each bundle with 6-8 steel stripes and 2 nylon strips Or one by one Or Nested into Containers
- Q:Are galvanized steel tubes the same as degaussing steel tubes?
- Also known as galvanized steel pipe, hot galvanized and galvanized two kinds, hot galvanized, zinc coating thickness, with uniform coating, adhesion, and long service life. The cost of galvanizing is low, the surface is not very smooth, and the corrosion resistance of itself is much worse than that of galvanized pipe.
- Q:What does seamless steel tube mean? What are the main uses? What are the classifications?
- The production process of seamless steel tube in general can be divided into two kinds of hot rolling and cold drawing, cold-rolled seamless steel pipe production process than hot-rolled billet to complex, first to three roller rolling and extrusion to sizing test, if the tube through the cutting machine cutting surface without crack growth response after cutting blank about one meter. Then enter the annealing process, annealing and pickling to use acid pickling liquid, should pay attention to the surface if there are a lot of bubbling, if there are a large number of bubbling pipe shows that the quality is not up to the standard. The appearance of cold rolling seamless steel tube shorter than hot-rolled seamless steel pipe, cold rolled seamless steel pipe wall thickness is generally higher than hot-rolled seamless steel pipe to be small, but the surface looks better than thick wall seamless steel pipe is more bright, rough surface is not too much, not too much burr diameter.
- Q:What are the main types of steel pipe ah? How to judge which kind of steel pipe performance is better?
- Sort by connectionThe connection way of steel pipe can be divided into: light pipe (pipe end without thread) and wire tube (Guan Duan with thread).The tube can be divided into ordinary tube and end tube.Thickening of the tube can also be divided into: extra thick (with external thread), internal thickening (with internal thread) and inside and outside thickening (with internal and external thread) and other vehicle wire tube.The wire tube can also be divided into ordinary cylinder or taper thread and special thread.In addition, according to user needs, wire tubes are generally equipped with pipe delivery.Plating characteristicsAccording to the characteristics of surface coated steel pipe can be divided into: Clarinet (not coated) and coating tube.The coating tubes include galvanized pipes, aluminium plated tubes, chrome plated pipes, aluminized tubes and other alloy layers.The coating tube has an outer coating tube, an inner coating tube and an inner and outer coating pipe. The commonly used coatings are plastics, epoxy resins, coal tar, epoxy resins, and various glass based anticorrosive coatings. Galvanized pipe is divided into KBG pipe, JDG pipe, threaded pipe, etc.
- Q:Stainless steel tube, also known as why tube?
- Production methods can be divided into two categories: seamless pipe and welded pipeSeamless steel pipe can be divided into hot-rolled pipe, cold rolled tube, cold drawn tube and extruded tubeWelded pipe is divided into straight welded pipe and spiral welded pipe and so on
- Q:What's the actual size of the DN25?
- Steel pipe is not only used to transport fluid and powder solid, exchange heat energy, and manufacture mechanical parts and containers, but also is an economic steel. It can reduce weight and save 20 to 40% of metal by using steel pipe to make building structure, network frame, prop and mechanical support. Moreover, it can realize factory mechanization construction. Using steel pipe to manufacture road bridge can not only save steel, simplify construction, but also greatly reduce the area of coating protective layer, save investment and maintenance cost.
- Q:Why can't stainless steel be put together with carbon steel tube?
- 1, the potential difference is: potential "stainless steel tube" and the negative potential "carbon steel" coupled "stainless steel", "a cathode carbon steel tube" is anode potentials of the two difference the greater the galvanic corrosion is bigger.2. An electronic passage formed by wire connection or direct contact. The carbon in the carbon steel tube loses its electrons to the stainless steel tube and the surface is absorbed by the etchant.3. Electrolyte: the contact area of two metals is covered or submerged by electrolyte. The iron in the carbon tube loses electrons to form ions into the solution, and the electrons on the surface of the stainless steel tubes are taken away by the corrosive agents in the electrolyte (such as oxygen in the air). Electrolytes become ionic channels.
- Q:Difference between cold rolled steel pipe and common steel pipe
- 1, from the dimension accuracy above, cold-rolled steel pipe size is good, high precision2. from the outward appearance, the surface of cold-rolled steel pipe is bright, and the surface of hot rolled steel pipe has obvious oxide skin or red rust
- Q:Is hot dipped plastic pipe steel?
- The characteristics of hot dipped plastic pipe are:1., hot dipped plastic pipe superior anti-static performance: through the formula to add antistatic agent, so that its internal and external surface resistance value reached and exceeded the national industry standards.2., such as the use of plastic raw materials, add flame retardants. The flame retardant performance index conforms to the national standard, and the steel plastic composite structure has better flame retardance than the pure plastic pipe material, and is suitable for underground inflammable, explosive and other places.3. hot dip coating steel strong adhesion: steel surface after special treatment, curing, coating adhesion is greater than or equal to 30N/10mm.4., dense internal and external resin layer: coating thickness of more than 0.5 mm, no pinholes, with excellent corrosion resistance.The mechanical properties of plastic steel pipe superior 5. hot dip: can withstand the harsh conditions of use: coating steel has good toughness, high mechanical strength, impact bending and other foreign influence, has a strong bearing capacity, has better performance than other mine plastic pipes.6. hot dip steel corrosion and fouling, the fluid resistance is small: corrosion and fouling, especially suitable for the underground conveying high sulfur water and transport of calcium and magnesium plasma water, save the maintenance cost, service life is much higher than that of the other pipe, high economic benefit.7. self lubrication: smooth wall, no fouling, small transmission resistance, under the same conditions, can improve the transport capacity of 30%.8. convenient and reliable connectionThe utility model completely overcomes the defects of the difficult connection of the pure plastic mining materials, and can be connected with the underground steel pipe and the valve by using flanges, fast couplings, etc., and has strong interchangeability.
- Q:Is it good to buy a simple wardrobe or a steel pipe?
- If the home place is big, buy Wooden, good-looking durable, if the place is small, buy cloth, easy to receive, mobile, tidy and cheap.
- Q:What is the process of spiral steel tube production?
- Shear forming: on the production line will be along the outer edge of the spiral plate winding tube.
1. Manufacturer Overview |
|
|---|---|
| Location | Hebei, China |
| Year Established | 1988 |
| Annual Output Value | Above One Hundred Million RMB |
| Main Markets | Main land; Southeast Asia; Middle East; Africa |
| Company Certifications | ISO 9002:2010；API 5L |
2. Manufacturer Certificates |
|
|---|---|
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period | |
3. Manufacturer Capability |
|
|---|---|
| a)Trade Capacity | |
| Nearest Port | Tianjin |
| Export Percentage | 30%-50% |
| No.of Employees in Trade Department | 201-500 People |
| Language Spoken: | English; Chinese |
| b)Factory Information | |
| Factory Size: | 50,000 square meters |
| No. of Production Lines | Above 15 |
| Contract Manufacturing | Meicai Metal Trading Co.Ltd |
| Product Price Range | Average |
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