Round Bar Hot Rolled High Quality GB Q195 Q235
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000000 m.t./month
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Specification
Product Description:
OKorder is offering Round Bar Hot Rolled High Quality GB Q195 Q235 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.
Product Advantages:
Round Bar Hot Rolled High Quality GB Q195 Q235 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: How do you package the angle steel when shipping?
A1: All goods are packed in bundles with steel strips and shipped by container or break bulk.
Q2: The products are invoicing on theoritical weight or on actual weight?
A2: We can do it in both manners, according to the customers' request.
Q3: How do we guarantee the quality of our products?
A3: 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.
- Q: What is the difference between hot rolled and cold drawn steel round bars?
- Hot rolled steel round bars are made by heating a billet or ingot of steel to a high temperature and then rolling it into the desired shape. This process results in a rougher surface finish and less precise dimensions compared to cold drawn steel round bars. Cold drawn steel round bars, on the other hand, are made by pulling a hot rolled bar through a die to achieve the desired shape and size. This process produces a smoother surface finish and more accurate dimensions. Overall, the main difference between hot rolled and cold drawn steel round bars lies in the manufacturing process and the resulting surface finish and dimensional accuracy.
- Q: What is the difference between seamless and welded steel round bars?
- Seamless and welded steel round bars differ primarily in the manufacturing process and the resulting characteristics of the final product. Seamless steel round bars are manufactured by piercing a solid billet of steel to create a hollow tube. This tube is then elongated and further processed to achieve the desired dimensions and surface finish. The seamless manufacturing process ensures that there are no welds or joints along the length of the bar. As a result, seamless steel round bars have a uniform composition and structure throughout, providing excellent strength and reliability. They are often preferred when high pressure or high-temperature applications are involved, as they offer better resistance to internal and external pressure. On the other hand, welded steel round bars are made by joining two or more pieces of steel together through welding techniques. This involves heating the ends of the steel pieces and fusing them together using various welding methods, such as arc welding, resistance welding, or fusion welding. The welding process introduces a weld seam along the length of the bar, which can affect its structural integrity and mechanical properties. Welded steel round bars may have slightly lower strength and toughness compared to seamless bars, as the presence of the weld seam can create stress concentrations. However, they are generally more cost-effective and readily available in a wide range of sizes and grades. In summary, the main difference between seamless and welded steel round bars lies in their manufacturing process and resulting characteristics. Seamless bars are produced by piercing a solid billet, offering uniform composition and strength throughout, making them suitable for high-pressure and high-temperature applications. Welded bars, on the other hand, are created by joining multiple pieces of steel through welding, introducing a weld seam that can slightly affect their strength and toughness. Welded bars are often more cost-effective and readily available in various sizes and grades.
- Q: Are steel round bars suitable for the production of gears?
- Yes, steel round bars are suitable for the production of gears. Steel is a common material used in gear manufacturing due to its high strength, durability, and resistance to wear and tear. The round bar shape allows for easy machining and shaping of the gear teeth. Steel round bars also provide excellent hardness and toughness, ensuring that the gears can withstand heavy loads and operate smoothly. Additionally, steel can be heat treated to further enhance its mechanical properties, making it an ideal choice for gear production.
- Q: What are the advantages of using steel round bars compared to other materials?
- There are several advantages to using steel round bars compared to other materials. Firstly, steel is known for its strength and durability, making it ideal for heavy-duty applications. It can withstand high temperatures, pressure, and heavy loads without warping or breaking. Secondly, steel round bars are highly versatile and can be easily machined, welded, and formed into various shapes and sizes, making them suitable for a wide range of applications. Additionally, steel is a cost-effective option as it provides excellent long-term value due to its durability and low maintenance requirements. Lastly, steel is a sustainable and environmentally friendly material as it can be recycled and reused indefinitely without losing its properties.
- Q: Can steel round bars be used for making furniture?
- Certainly! Furniture can indeed be made using steel round bars. These bars possess qualities of strength, durability, and a sleek, contemporary appearance. With these features in mind, a wide variety of furniture items can be crafted, including tables, chairs, stools, and shelving units. By welding, bending, and shaping steel round bars, bespoke and distinctive designs can be achieved. Furthermore, combining steel round bars with other materials, such as wood or glass, allows for a captivating blend of textures and styles. An added advantage of steel round bars is their resistance to corrosion, rendering them suitable for both indoor and outdoor furniture. In summary, steel round bars bestow versatility and robustness, making them an exceptional choice for furniture-making endeavors.
- Q: Can steel round bars be used in the manufacturing of machinery?
- Certainly, machinery manufacturing can make effective use of steel round bars. Various industries commonly employ steel round bars due to their robustness, longevity, and adaptability. These bars frequently serve in the fabrication of essential components like shafts, axles, gears, and other mechanical parts that necessitate exceptional strength and resistance against deterioration. Notably, steel round bars exhibit remarkable mechanical properties, encompassing impressive tensile strength and superior machinability, rendering them highly suitable for heavy-duty machinery and equipment. Furthermore, steel round bars can be conveniently welded, forged, or machined into the desired configuration, thus establishing them as a preferred option for machinery manufacturing.
- Q: Are steel round bars susceptible to corrosion?
- Yes, steel round bars are susceptible to corrosion.
- Q: What is the difference between a forged and a ground steel round bar?
- The manufacturing processes and resulting characteristics of a forged steel round bar and a ground steel round bar differ significantly. To create a forged steel round bar, the steel is subjected to high temperatures and then shaped using mechanical pressure, typically with a hammer or press. This process aligns the grain structure of the steel, enhancing its strength and durability. The forged steel round bars are renowned for their exceptional strength, impact resistance, and overall toughness. They find widespread use in applications that demand high strength, such as heavy machinery, automotive parts, and construction equipment. On the contrary, a ground steel round bar is manufactured using a grinding process. Once the steel is initially shaped, it undergoes precise grinding to achieve the desired dimensions and surface finish. This grinding process eliminates any imperfections or irregularities on the surface, resulting in a smooth and polished appearance. Ground steel round bars are commonly employed in applications that necessitate precise dimensions, like shafts, axles, and precision tools. In conclusion, the primary distinction between a forged steel round bar and a ground steel round bar lies in their manufacturing processes and resultant properties. The forged steel round bar offers superior strength and toughness due to the alignment of its grain structure, making it a suitable choice for heavy-duty applications. Conversely, the ground steel round bar is renowned for its precise dimensions and polished surface finish, rendering it an ideal option for applications that require precision.
- Q: What is the maximum weight of a steel round bar?
- The maximum weight of a steel round bar is determined by its diameter and length. Steel round bars are available in different sizes and weights, thus it is crucial to specify the dimensions to determine the maximum weight. To calculate the weight of a steel round bar, the formula weight = volume × density is utilized. The volume can be calculated as πr²h (pi multiplied by the radius squared times the height), and the density represents the specific weight of steel, which is approximately 7850 kg/m³. By inputting the suitable values, one can determine the maximum weight of a steel round bar.
- Q: Are steel round bars suitable for the production of bearings?
- Steel round bars are unsuitable for bearing production. Bearings necessitate materials with specific properties, including high hardness, wear resistance, and a low friction coefficient. Steel round bars lack these characteristics in their raw form and would require additional processing and treatments to acquire the necessary properties for bearing production. Bearing materials are generally chosen from alloys like stainless steel, chrome steel, or ceramic materials that are designed to withstand challenging conditions and offer optimal performance.
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Round Bar Hot Rolled High Quality GB Q195 Q235
- Ref Price:
-
- Loading Port:
- Tianjin
- 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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