High Quality Hollow Section-Square Tubes
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 1000 m.t./month
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High Quality Hollow Section-Square Tubes
Product Applications:
It is widely used in building, machine, chemical equipment, automobile industrial, container, it is also applied to agriculture and mine machine.
Product Specifications:
Standards: ASTM A500, GB6728
Grade: ASTM A500: A, B, C; GB6728: Q195, Q215, Q235, Q345
Sizes:
*Remark: Besides below sizes, we also can arrange production based on requirement of customers
Size (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:
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:
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: Packed in bundles, each bundle with 6-8 steel stripes and 2 nylon strips or one by one Or Nested into Containers
Product Images:
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.
Q2: How do we guarantee the quality of our products?
A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q3: How soon can we receive the product after purchase?
A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.
Q4: What makes stainless steel stainless?
A4: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.
Q5: Can stainless steel rust?
A5: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.
Q6: What is the difference between galvanized steel and galvalume steel?
A6: Galvanized steel is metallic coated with Zinc in various coating weights. Minimum recommended for painted metal roofs is G90. Galvalume is a zinc and aluminum coated steel that becomes an alloy and is recommended in either painted or bare applications with a minimum coating weight of AZ50. Galvalume has an excellent performance life in bare exposures. Hence if you are using a bare panel use galvalume and if painted use either.
Q7: Is there a difference in thermal conductivity between stainless steel and steel?
A6: Yes. Stainless Steel has a lower thermal conductivity rate than steel; approximately 1/3 to 1/5th depending on the material.
Q8: Is there a difference in electrical conductivity between stainless steel and steel?
A8: Yes. Steel is generally more conductive than stainless steel. Steel has resistivity in the range of 10~20Ωm, while stainless has a resistivity of approximately 60~72Ωm.
- Q:Can galvanized pipe be welded with seamless steel tube? What should I do to connect?
- Processing method is very simple, I suggest you add blue disk connection, you can not use welding ~ ~ ~!The gas pipe is the best galvanized pipe, mainly play a role in anti-corrosion ~ ~ ~ ~ if you must use seamless connection can.When welding, can open a certain groove, use galvanized material electrode, but the premise is must be welded with seamless tube firmly.
- Q:What are the different pressure ratings for steel pipes?
- The different pressure ratings for steel pipes can vary depending on factors such as pipe size, wall thickness, and the type of steel used. Common pressure ratings for steel pipes range from 150 psi (pounds per square inch) to 2500 psi or higher.
- Q:Are steel pipes suitable for underground sewage lines?
- Yes, steel pipes are suitable for underground sewage lines. They are strong, durable, and resistant to corrosion, making them an excellent choice for sewage systems.
- Q:Can steel pipes be used for culvert applications?
- Yes, steel pipes can be used for culvert applications. Steel pipes are commonly used for culverts due to their durability, strength, and resistance to corrosion. They can withstand heavy loads and are able to handle high traffic volumes and large water flows. Additionally, steel pipes can be easily manufactured in various sizes and shapes to suit specific culvert requirements. Their longevity and low maintenance needs make them a cost-effective choice for culvert applications.
- Q:Are steel pipes suitable for underground mining applications?
- Steel pipes are a great choice for underground mining. The mining industry has been using steel pipes for a long time, and they have many different uses, such as supplying water, providing ventilation, and moving materials. Steel pipes are strong and durable, making them perfect for the tough conditions of underground mining. One of the reasons steel pipes are so good for underground mining is their high tensile strength. This means they can handle the pressure and stress from the rock and earth around them. They can also carry heavy loads, which is important for transporting materials and supporting structures in mining tunnels. Another advantage of steel pipes is their resistance to corrosion. This is really important in underground mining, where there's often moisture and chemicals around. With steel pipes, you don't have to worry about them getting damaged and needing to be replaced or repaired all the time. Steel pipes are also easy to weld and join together. This means they can be customized to fit different shapes and sizes to suit the specific needs of each mining operation. To sum up, steel pipes are a fantastic choice for underground mining because they're strong, durable, resistant to corrosion, and versatile. They've been proven to be effective in supporting mining operations and ensuring safety and efficiency.
- Q:Can steel pipes be used for irrigation pumps?
- Yes, steel pipes can be used for irrigation pumps. Steel pipes are commonly used in irrigation systems due to their durability, strength, and resistance to corrosion. They can handle the high pressures and flow rates required for efficient irrigation, making them a suitable choice for connecting and transporting water from irrigation pumps.
- Q:What is the cost of steel pipes compared to other piping materials?
- The cost of steel pipes can vary depending on factors such as size, thickness, and grade. However, generally speaking, steel pipes tend to be more expensive than other piping materials such as PVC or copper. This is due to the durability, strength, and longevity of steel pipes, making them a preferred choice for various industrial and construction applications.
- Q:What are the common fittings and accessories used with steel pipes?
- Some common fittings and accessories used with steel pipes include couplings, elbows, tees, reducers, flanges, and valves. Additionally, accessories such as pipe hangers, brackets, clamps, and gaskets are often used to support and secure the pipes.
- Q:What is the difference between steel pipes and PVC-M pipes?
- Steel pipes are made from a strong and durable material, steel, and are commonly used for carrying high-pressure fluids or in industrial applications. On the other hand, PVC-M pipes are made of a plastic material called polyvinyl chloride modified, which offers good flexibility and resistance to corrosion. PVC-M pipes are typically used in low-pressure applications such as domestic plumbing, irrigation, or drainage systems.
- Q:Why should the weak electricity be pre buried with galvanized steel pipe?
- Galvanized steel is widely used in construction, machinery, coal, chemical industry, railway vehicles, automobile industry, highway, bridge, container, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery and other manufacturing industries.
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 |
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|---|---|
| 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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High Quality Hollow Section-Square Tubes
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 1000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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