Steel Round Bar GB Q235 Q195 5-100MM Hot Rolled High Quality
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
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Product Description:
OKorder is offering high quality Steel Round Bar GB Q235 Q195 5-100MM Hot Rolled High Quality 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 Round Bar GB Q235 Q195 5-100MM Hot Rolled High Quality 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: What makes stainless steel stainless?
A2: 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.
Q3: Can stainless steel rust?
A3: 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 round bars corrosion resistant?
- Yes, steel round bars can be corrosion resistant depending on the specific type of steel used and the conditions they are exposed to. Some types of steel, such as stainless steel, contain alloying elements like chromium which create a protective layer that helps prevent corrosion. However, not all steel round bars are inherently corrosion resistant and may require additional coatings or treatments to enhance their resistance to corrosion.
- Q: How do steel round bars perform under bending or flexing forces?
- Steel round bars generally perform well under bending or flexing forces due to their high tensile strength and ductility. When subjected to bending forces, the steel round bars can resist deformation and maintain their shape, making them suitable for various applications such as construction, manufacturing, and engineering. The combination of high strength and ductility allows the bars to absorb and distribute the applied load evenly, minimizing the risk of failure or breakage. The behavior of steel round bars under bending or flexing forces can be further enhanced by factors such as the alloy composition, heat treatment, and manufacturing process. Different grades of steel can offer varying levels of strength, toughness, and resistance to bending. Heat treatment processes like quenching and tempering can further improve the mechanical properties, making the bars more resistant to bending and flexing. However, it is important to note that excessive bending or flexing can lead to permanent deformation or failure of the steel round bars. Overloading or repeated bending beyond the material's limits can cause stress concentrations, microcracks, or even fractures. Therefore, it is crucial to determine the appropriate bending limits and ensure proper design and installation to maintain the structural integrity and safety of steel round bars under bending or flexing forces.
- Q: How about tempering No. 45 round bar?
- Quenched and tempered steel has two major categories: carbon quenched and tempered steel and alloy quenched and tempered steel. Carbon steel or alloy steel, the control of carbon content is relatively strict. If the carbon content is too high, after quenching and tempering the strength of the workpiece is high, but the toughness is not enough, such as carbon content is too low, toughness and lack of strength. In order to make the quenched and tempered parts get good comprehensive performance, the total carbon content is controlled at 0.30~0.50%.
- Q: Can steel round bars be used in the agricultural machinery industry?
- Yes, steel round bars can be used in the agricultural machinery industry. Steel round bars are known for their strength, durability, and versatility, making them suitable for various applications, including the agricultural machinery industry. These bars can be used to manufacture various components such as shafts, axles, gears, and connecting rods, which are essential for agricultural machinery. The high strength of steel ensures that these components can withstand the heavy loads and harsh conditions often encountered in agricultural operations. Additionally, steel round bars can be easily machined and welded, allowing for customization and efficient production of agricultural machinery parts. Overall, steel round bars are a reliable and cost-effective choice for the agricultural machinery industry.
- Q: What is the toughness of a steel round bar?
- The toughness of a steel round bar refers to its ability to resist fracture or deformation under stress. It is a measure of how well the steel can absorb energy and withstand impact without breaking. The toughness of a steel round bar depends on various factors such as the composition of the steel, its microstructure, and any heat treatment it has undergone. Generally, high-strength and alloy steels tend to have higher toughness due to their enhanced mechanical properties. Additionally, factors such as the presence of impurities, grain size, and the presence of any defects or cracks within the material can also affect its toughness. To determine the toughness of a steel round bar, tests such as the Charpy impact test or the Izod test are commonly performed to measure the energy absorbed by the material before it fractures. Overall, the toughness of a steel round bar is an important characteristic to consider when selecting a material for applications where high impact resistance is required, such as in construction, automotive, or aerospace industries.
- Q: What is the difference between a seamless and a turned steel round bar?
- The main difference between a seamless and a turned steel round bar lies in their manufacturing process and resulting characteristics. A seamless steel round bar is produced by piercing a solid steel billet, typically through a hot rolling process. This creates a hollow tube-like structure, which is then further elongated and shaped into the desired round bar form. The seamless nature of this bar means that there are no welded joints or seams along its length, resulting in a smooth and continuous surface. This manufacturing method enhances the overall strength and durability of the round bar. On the other hand, a turned steel round bar starts as a solid steel bar, commonly obtained through casting or hot rolling. The bar is then subjected to a machining process known as turning, where it is rotated against a cutting tool to remove material and achieve the desired dimensions and shape. This turning process creates a round bar with a smooth and polished surface. However, unlike a seamless round bar, a turned bar may have mill marks or slight imperfections due to the machining process. In terms of applications, seamless steel round bars are often preferred in industries that require high strength and reliability, such as construction, automotive, and oil and gas. Their uniform structure and absence of welds make them highly resistant to cracking and failure under heavy loads or extreme conditions. Turned steel round bars, on the other hand, are commonly used in applications where a smooth surface finish is desired, such as in decorative pieces or precision components for machinery. Overall, the main difference between a seamless and a turned steel round bar lies in their manufacturing process and resulting characteristics. While both provide a smooth surface finish, seamless round bars offer enhanced strength and reliability due to their seamless structure, whereas turned round bars are often chosen for their precise dimensions and aesthetic qualities.
- Q: Can steel round bars be used for making interior components?
- Indeed, the utilization of steel round bars in the creation of interior components is viable. Steel, being both sturdy and adaptable, can be molded and fashioned into a plethora of different designs and structures. Specifically, round bars are exceptionally well-suited for crafting interior components including handrails, staircases, furniture frames, and decorative elements. They offer not only robustness and stability, but also an appealing aesthetic to interior spaces. Moreover, steel round bars can be effortlessly welded, bent, or cut to fulfill particular design specifications, rendering them an optimal selection for bespoke interior components.
- Q: What are the different types of steel round bar alloys used in the construction industry?
- There are several different types of steel round bar alloys commonly used in the construction industry. Some of the most popular alloys include: 1. Carbon Steel: This is the most common type of steel alloy used in construction. It is known for its high strength and durability, making it suitable for a wide range of applications. 2. Stainless Steel: This alloy is highly resistant to corrosion and staining, making it ideal for construction projects where exposure to moisture or chemicals is a concern. It is often used in applications such as handrails, kitchen equipment, and structural components. 3. Alloy Steel: This type of steel contains additional alloying elements such as manganese, chromium, or nickel, which enhance its mechanical properties. Alloy steel round bars are known for their high tensile strength, toughness, and wear resistance, making them suitable for applications that require heavy-duty performance. 4. Tool Steel: As the name suggests, this alloy is specifically designed for making tools and machinery components. Tool steel round bars are known for their hardness, resistance to abrasion, and ability to retain their shape at high temperatures. They are commonly used in the construction industry for making cutting tools, dies, and molds. 5. Duplex Steel: This alloy combines the properties of both austenitic and ferritic stainless steels. Duplex steel round bars offer excellent corrosion resistance, high strength, and good weldability. They are often used in construction projects where a combination of strength and corrosion resistance is required, such as in marine or coastal environments. Overall, the choice of steel round bar alloy in the construction industry depends on the specific application and requirements of the project. Each alloy offers unique properties and advantages, allowing construction professionals to select the most suitable option for their needs.
- Q: What is the maximum phosphorus content allowed for steel round bars?
- The maximum phosphorus content allowed for steel round bars varies depending on the specific steel grade and industry standards. However, in general, the phosphorus content in steel round bars is typically limited to a maximum of 0.04% to 0.05%. This limitation is imposed to ensure the desired mechanical properties, such as strength, toughness, and ductility, of the steel product. Higher phosphorus content can negatively impact these properties and may lead to reduced weldability, increased brittleness, and decreased corrosion resistance. Therefore, manufacturers and regulatory bodies set strict limits on phosphorus content to ensure the quality and performance of steel round bars in various applications. It is important to consult relevant industry standards or specifications to determine the specific maximum phosphorus content allowed for a particular steel grade or application.
- Q: How about the difference between round steel and shaped steel? Where are they mainly used?
- Low carbon steel Q235 steel hot rolled into a round, mainly used in concrete. Medium and high carbon tool steels are wound into large diameter round bars and are used in the machinery industry for cutting into components.
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Steel Round Bar GB Q235 Q195 5-100MM Hot Rolled High Quality
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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