Round Bar Q235 3MM-25MM High Quality Hot Rolled GB
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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OKorder is offering high quality Hot Rolled Steel I-Beams at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
1) Suitable for making various strong cutting tool abrasion resistance, impact resistance.
2) Used to produce all kinds of high hard and super hard saw blade, drill, tap, broach, gear hob and various kinds of milling cutter.
3) Used for advanced punching die, screw die, and the toughness and complicated shape of the punch, etc.
4) Is used for cold forging die and drawing mode, etc.
5) Recommended watchcase factory, screw factory and other cold stamping products industry use.
Product Advantages:
OKorder's Steel I-Beams 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
Product Specifications:
1. Grade: GB, JIS, ASTM, EN
2. Grade: Q235, SS400, A36, S235JR
3. Diameter and mass: As below
Diameter | Mass | Diameter | Mass | Diameter | Mass |
(mm) | (kg/m) | (mm) | (kg/m) | (mm) | (kg/m) |
6 | 0.22 | 22 | 2.98 | 53 | 17.30 |
7 | 0.30 | 24 | 3.55 | 56 | 19.30 |
8 | 0.40 | 25 | 3.85 | 60 | 22.20 |
9 | 0.50 | 26 | 4.17 | 63 | 24.50 |
10 | 0.62 | 28 | 4.83 | 65 | 26.00 |
11 | 0.75 | 30 | 5.55 | 70 | 30.20 |
12 | 0.89 | 32 | 6.31 | 75 | 34.70 |
13 | 1.04 | 34 | 7.13 | 80 | 39.50 |
14 | 1.21 | 36 | 7.99 | 85 | 44.50 |
15 | 1.39 | 38 | 8.90 | 90 | 49.90 |
16 | 1.58 | 40 | 9.86 | 95 | 55.60 |
17 | 1.78 | 42 | 10.90 | 100 | 61.70 |
18 | 2.00 | 45 | 12.50 | 120 | 88.85 |
19 | 2.23 | 48 | 14.20 | 140 | 120.93 |
20 | 2.47 | 50 | 15.40 | 150 | 138.82 |
4. Material: Mild Steel
5. Heat treatment of high quality steel:
Fire: Isothermal annealing temperature is 800 ~ 880 °C, with 10 ~ 20 °C, the furnace cooling to about 600 °C, hardness above HB269.
Preheat temperature: 730-730 °C
Quenching temperature: 1190-1210 °C
Tempering temperature: 540-595 °C
Cold drawn, hardness 285 HBS
Cold drawn after annealing condition, hardness 277 HBS
Quenching methods: oil quenching, air cooling or salt bath quenching
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.
- Q:What are the advantages of using structural steel round bars?
- There are several advantages of using structural steel round bars in various applications. Firstly, structural steel round bars offer exceptional strength and durability. The circular shape of the bar allows for even distribution of weight and stress, making it highly resistant to bending and breaking. This strength is particularly beneficial in applications where the bars are subjected to heavy loads or extreme weather conditions. Additionally, structural steel round bars are highly versatile. They can be easily shaped and manipulated to fit specific project requirements, allowing for greater design flexibility. This versatility makes them suitable for a wide range of applications, including construction, manufacturing, and engineering projects. Another advantage of using structural steel round bars is their cost-effectiveness. Steel is a relatively affordable material, and the efficiency of the manufacturing process makes it a cost-effective choice for various projects. Furthermore, the durability and longevity of steel round bars reduce the need for frequent maintenance or replacement, resulting in long-term cost savings. Furthermore, structural steel round bars offer excellent resistance to corrosion. Steel is inherently resistant to rust and other forms of corrosion, making it highly suitable for outdoor or high-moisture environments. This resistance extends the lifespan of the bars and ensures their structural integrity over time. Lastly, structural steel round bars are readily available and easily sourced. Steel is a widely used material, and it is produced in large quantities, making it readily available in various sizes and grades. This accessibility ensures that steel round bars can be easily obtained, reducing project delays and increasing overall efficiency. In conclusion, the advantages of using structural steel round bars include exceptional strength and durability, versatility, cost-effectiveness, resistance to corrosion, and easy availability. These benefits make structural steel round bars a preferred choice for a wide range of applications, providing a reliable and efficient solution for various construction and engineering projects.
- Q:What are the different types of steel round bar surface defects?
- Steel round bars can exhibit various types of surface defects. Among the most common defects are: 1. Scale: This defect arises from the formation of a thin layer of oxide on the steel's surface during manufacturing. It presents as a rough, flaky, or scaly texture and can be easily eliminated through pickling or abrasive cleaning. 2. Pitting: Localized corrosion manifests as small, shallow holes or depressions on the steel's surface. It is usually caused by exposure to corrosive substances or environments and can weaken the material if left unaddressed. 3. Surface cracks: These visible cracks appear on the surface of the steel round bar and can be attributed to factors like improper cooling during manufacturing, excessive stress, or mishandling. Surface cracks can compromise the steel's structural integrity and necessitate careful inspection and repair. 4. Decarburization: This defect occurs when the steel's surface layer loses carbon content, resulting in reduced hardness and strength. High temperatures during heat treatment or inadequate cooling methods often cause decarburization. It can be identified through visual inspection or hardness tests. 5. Lamination: Lamination defects arise when layers or flakes are present within the steel round bar. These layers can weaken the material and compromise its structural integrity. Improper rolling or excessive impurities in the steel are typically responsible for lamination defects. 6. Inclusions: During the manufacturing process, foreign materials or impurities can become trapped within the steel, resulting in inclusions. These can appear as dark spots, streaks, or irregular shapes on the round bar's surface. Inclusions reduce the steel's strength and ductility and can be caused by factors such as poor raw material quality or insufficient refining processes. It is crucial to note that the severity and impact of surface defects on steel round bars can vary. Regular inspection and quality control measures are essential for identifying and rectifying any surface defects, ensuring the reliability and integrity of the steel round bar.
- Q:What are the different surface defects that can be found in steel round bars?
- Some common surface defects that can be found in steel round bars include scratches, pits, cracks, scale, and decarburization.
- Q:Can steel round bars be used in the production of industrial machinery?
- Yes, steel round bars can be used in the production of industrial machinery. Steel round bars are commonly used in the manufacturing of various components and parts for industrial machinery due to their strength, durability, and versatility. These bars can be used to create shafts, gears, rollers, and other critical components that are essential for the proper functioning of industrial machinery. The high tensile strength of steel round bars allows them to withstand heavy loads and resist deformation, making them ideal for use in industrial applications. Additionally, steel round bars can be easily machined, welded, and formed into different shapes and sizes, making them highly suitable for customization according to specific machinery requirements.
- Q:Can steel round bars be used for making kitchen utensils?
- Yes, steel round bars can be used for making kitchen utensils. Steel is a strong and durable material that is commonly used in the production of kitchen utensils due to its resistance to corrosion, heat, and chemical damage. Steel round bars can be easily shaped and molded into various utensils such as spoons, forks, knives, and ladles. Additionally, steel utensils are non-reactive, which means they do not leach harmful substances into food, making them a safe choice for cooking and food preparation.
- Q:What is the difference between steel and flat steel, round steel and steel?
- On the whole, the square section is square, flat section is rectangular, steel surface after finishing the round steel or steel wire (also called steel, silver bar).
- Q:What are the different types of steel round bars used in the manufacturing of valves and fittings?
- There are several types of steel round bars commonly used in the manufacturing of valves and fittings, including carbon steel round bars, stainless steel round bars, and alloy steel round bars. These different types of steel offer varying levels of strength, corrosion resistance, and durability, allowing manufacturers to choose the most suitable material for their specific application requirements.
- Q:Are steel round bars susceptible to rust?
- It is true that rust can occur on steel round bars. Rust is the outcome of a chemical reaction involving iron and oxygen in the presence of moisture. Due to the fact that steel is primarily composed of iron, it can rust if it is exposed to air and moisture. Nevertheless, the likelihood of rust can be decreased by taking specific precautionary measures. To establish a barrier between the steel and the surrounding environment, steel round bars can be coated with protective layers such as paint, oil, or galvanized coatings. This effectively prevents or delays the initiation of rust. In order to minimize the risk of rust formation on steel round bars, it is advisable to regularly maintain them by cleaning and reapplying protective coatings.
- Q:What is the difference between gcr12 round bar and Cr12 round bar? Can it be used in general?
- GCr12 is the bearing steel, belongs to the high carbon chromium bearing steel, the chromium Cr content is about 1.2%, other alloy element's indication method and the alloy structural steel alloy content is same. The utility model is mainly used as a ferrule and a rolling body of a rolling bearing under general service conditions.
- Q:What is the difference between a centerless ground and a rough turned steel round bar?
- The manufacturing processes and resulting surface finishes of a centerless ground steel round bar and a rough turned steel round bar differ. To produce a centerless ground steel round bar, the bar is fed through a grinding machine. This machine removes material from the surface, achieving precise diameter and roundness tolerances. The bar is rotated between two grinding wheels, while pressure is applied to remove imperfections and create a smooth, polished surface. The end result is a highly accurate and consistent diameter, with a mirror-like finish. This makes it suitable for applications that require tight tolerances and a polished appearance. On the other hand, a rough turned steel round bar is manufactured using a different machining process called turning. In this process, the bar is rotated against a cutting tool, which removes material from the surface to achieve the desired diameter and shape. However, turning does not provide the same level of precision and surface finish as centerless grinding. The resulting surface of a rough turned bar will have visible tool marks and a rougher texture compared to a centerless ground bar. In conclusion, the main distinction between a centerless ground steel round bar and a rough turned steel round bar lies in their manufacturing processes and resulting surface finishes. Centerless grinding offers a more precise diameter, roundness, and smoother surface finish, making it ideal for applications that require tight tolerances and a polished appearance. Rough turning, while less precise and with a rougher surface finish, is still suitable for applications that do not require the same level of precision or aesthetic appeal.
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Round Bar Q235 3MM-25MM High Quality Hot Rolled GB
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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