Q235 Stainless Steel Flat Bar of Standard: GB
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 1000 m.t./month
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Product Applications:
Q235 Stainless Steel Flat Bar of Standard: GB are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.
Product Advantages:
OKorder's Q235 Stainless Steel Flat Bar are durable, strong, and resist corrosion.
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Corrosion resistance
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Specification of Q235 Steel Flat Bar
Commodity: Q235 Steel Flat Bar
Standard: GB
Material: Q235
Brand name: FLATSPACE
Origin place: China
Thickness: 3mm-30mm
Width:20mm-200mm
Length: Max 12m
Certification: SGS/BV
Chemical composition of Q235
Alloy No | Grade | Element(%) | ||||
C
| Mn
| S
| P
| Si
| ||
Q235
|
B
|
0.12—0.20 |
0.3—0.7 |
≤0.045 |
≤0.045
|
≤0.3
|
Physical properties of Q235
Alloy No | Grade | Yielding strength point(Mpa) | Tensile strength (Mpa) | Elongation after fracture(%) | ||||||
Thickness (mm) | Thickness (mm) | |||||||||
≤16 | ＞16--40 | ＞40--60 | ＞60--100 | ≤16 | ＞16--40 | ＞40--60 | ＞60--100 | |||
≥ | ≥ | |||||||||
Q235 |
B |
235 |
225 |
215 |
205 |
375--500 |
26 |
25 |
24 |
23 |
Usage/Applications of Q235 Steel Flat Bar
Widely used for construction, Machinery manufacturing, Iron tower steel structure, Shipbuilding; Steel grating, Staircase, Bridge, Viaduct, Railway spare parts, Boilers making etc.
Production Flow of Q235 Steel Flat Bar
The steel flat bar is made through three processes:
1.Feeding the material: Feeding the row material (the steel plate) to Slitting Line.
2.Slitting:The steel plate would be slitted into expected width by lengthways cutter.
3. Leveled and cutting: The plat bar would be ground into level by the grinder and then cut into required length.
Packaging & Delivery of Q235 Steel Flat Bar
Packaging Details: The Steel Flat Bars are packed in bundles and loaded in 20 feet/40 feet container, or shipped by bulk cargo ,also we can do as customer's requirements.
Delivery Details:30~45 days upon the receipt of buyer payment by T.T. or L/C.
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: What makes stainless steel stainless?
A3: 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.
Q4: Can stainless steel rust?
A4: 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
- Q: Are steel flat bars available in custom sizes?
- Yes, steel flat bars are available in custom sizes. While standard sizes of steel flat bars are commonly found in the market, many suppliers and manufacturers offer the option to customize the dimensions of flat bars to meet specific requirements. This allows customers to have steel flat bars tailored to their specific project needs, whether it involves a unique length, width, or thickness. Customizing the size of steel flat bars ensures a precise fit and optimal functionality for various applications, including construction, manufacturing, and fabrication.
- Q: Are steel flat bars available with pre-drilled holes?
- Yes, steel flat bars are available with pre-drilled holes. These pre-drilled holes are commonly used to facilitate easy installation and provide a secure attachment point for various applications. Pre-drilled holes can be found in different sizes and patterns, depending on the specific requirements of the project. The availability of pre-drilled holes on steel flat bars offers convenience and time-saving benefits for users, as it eliminates the need for additional drilling or machining. Whether it is for construction, furniture assembly, or industrial applications, steel flat bars with pre-drilled holes are readily available and widely used in various industries.
- Q: What is the price range of steel flat bars?
- Several factors, such as the size, grade, and quality of the steel, can cause the price range of steel flat bars to vary. Typically, the price range for these bars is between $10 and $100 per bar. However, specialty or high-grade steel flat bars may be priced even higher, going up to $200 or beyond. To obtain the most accurate and current pricing information, it is advisable to consult local suppliers or refer to online sources.
- Q: What are the different international standards for steel flat bars?
- There are several international standards for steel flat bars, which ensure the quality and specifications of these products. Some of the most commonly followed standards include: 1. ASTM International (American Society for Testing and Materials): ASTM A36/A36M is a widely used standard that specifies the requirements for steel flat bars made from carbon structural steel. It covers dimensions, tolerances, chemical composition, mechanical properties, and other relevant aspects. 2. European Norm (EN): The EN 10058 standard is applicable to hot-rolled flat steel bars with a width of 15 mm and above, and a thickness of 1 mm and above. It specifies the tolerances, dimensions, and technical delivery conditions for these bars. 3. Japanese Industrial Standards (JIS): JIS G3194 is a standard used in Japan for hot-rolled flat steel bars. It covers the classification, dimensions, and tolerances of these bars, along with the permissible variations in chemical composition and mechanical properties. 4. British Standards (BS): The BS EN 10025-2 standard specifies the technical delivery conditions for non-alloy structural steels, including flat bars. It covers dimensions, tolerances, chemical composition, and mechanical properties, ensuring the quality and performance of these bars. 5. International Organization for Standardization (ISO): ISO 1035-3 provides guidelines for hot-rolled steel bars, including flat bars, made from unalloyed or low-alloy steels. It covers the dimensions, tolerances, and technical delivery conditions for these bars. These are just a few examples of the international standards that govern the production, quality control, and specifications of steel flat bars. By adhering to these standards, manufacturers ensure consistency, reliability, and compatibility of their products in global markets.
- Q: The difference between galvanized flat steel 40*4 and galvanized flat steel 80*8 is the difference on the material list!
- There are many kinds of flat steel, Q235A/B/C, mainly depends on the location of your specific requirements, what is needed?;
- Q: Can steel flat bars be used for making sculptures?
- Certainly, sculptures can be made using steel flat bars. Steel, being a durable and versatile material, offers a wide range of artistic possibilities. The use of flat bars as a foundation allows for easy manipulation and welding, enabling the creation of various shapes and forms. Furthermore, intricate details and textures can be achieved by cutting, bending, and shaping the flat bars. Their strength and stability make them suitable for both indoor and outdoor sculptures, as they can withstand different weather conditions. In summary, steel flat bars are highly sought after by sculptors due to their versatility and ability to transform artistic visions into reality.
- Q: How is steel flat bar manufactured?
- Steel flat bar is manufactured through a series of processes involving the use of raw materials, machinery, and skilled labor. The production starts with the selection of high-quality steel, usually in the form of billets or slabs. These steel pieces are heated to a specific temperature in a furnace to make them malleable. Once the steel reaches the desired temperature, it is passed through a series of rollers in a process called hot rolling. This process involves using massive rotating rollers to shape the steel into a flat bar. The rollers exert high pressure on the steel, gradually reducing its thickness and increasing its length. The steel is continuously passed through the rollers until it reaches the desired dimensions. After hot rolling, the steel flat bar may undergo a process called pickling to remove any scale or impurities on its surface. Pickling involves immersing the steel in a bath of acid, which chemically reacts with and removes the impurities. This step ensures a clean and smooth surface finish. Once the desired surface finish is achieved, the steel flat bar may undergo additional processes like cold rolling or cold drawing. These processes further refine the dimensions and improve the surface quality of the steel. Cold rolling involves passing the steel through rollers at room temperature, while cold drawing involves pulling the steel through a die to reduce its thickness and increase its length. Finally, the steel flat bar may undergo various finishing processes, such as cutting, machining, or surface treatments, depending on the intended application. These processes ensure that the steel flat bar is cut to the required length and its edges are smooth and free from any imperfections. Overall, the manufacturing of steel flat bar involves a combination of heating, rolling, pickling, and finishing processes to transform raw steel into a versatile and widely used construction material.
- Q: How do steel flat bars compare to other types of steel sections?
- Steel flat bars are different from other types of steel sections in terms of their shape and dimensions. Unlike beams or channels that have a more complex cross-section, flat bars have a simple rectangular shape with a uniform thickness. This makes them versatile and suitable for various applications such as construction, manufacturing, and fabrication. Flat bars are commonly used for structural support, as well as for creating frameworks, brackets, and supports. They are also easily weldable and can be bent or cut to meet specific project requirements. Overall, steel flat bars offer a practical and cost-effective solution for many structural and industrial applications.
- Q: Can steel flat bars be used in corrosive environments?
- No, steel flat bars are not recommended for use in corrosive environments as they are susceptible to rust and corrosion.
- Q: How do you determine the corrosion resistance of a steel flat bar?
- To determine the corrosion resistance of a steel flat bar, several methods can be employed. One common method is conducting corrosion tests such as salt spray testing or immersion testing. In salt spray testing, the flat bar is exposed to a controlled environment of saltwater mist, simulating corrosive conditions. The bar is then inspected at regular intervals to assess any signs of corrosion or degradation. Immersion testing involves submerging the flat bar in a corrosive solution for a specific period. The solution can vary depending on the intended application, but common examples include acidic solutions like sulfuric acid or alkaline solutions like sodium hydroxide. The flat bar is then examined for any signs of corrosion or changes in appearance. Another method is the use of electrochemical testing techniques, such as potentiodynamic polarization or electrochemical impedance spectroscopy. These techniques involve applying a controlled electrical current to the flat bar and measuring the resulting electrochemical response. By analyzing the data obtained, corrosion resistance parameters such as corrosion potential and corrosion current can be determined. Additionally, it is important to consider the composition and surface treatment of the steel flat bar. Different alloys and surface coatings can significantly impact the corrosion resistance. Factors such as the presence of chromium or other corrosion-resistant elements, as well as the application of protective coatings like galvanization or painting, can enhance the overall corrosion resistance. Overall, a combination of laboratory testing, electrochemical techniques, and consideration of the steel's composition and surface treatment is necessary to accurately determine the corrosion resistance of a steel flat bar.
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Q235 Stainless Steel Flat Bar of Standard: GB
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 1000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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