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
You Might Also Like
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:How do you determine the strength and hardness of a steel round bar?
- To determine the strength and hardness of a steel round bar, several tests and techniques can be employed. One of the most common methods is the tensile strength test. In this test, a sample of the steel round bar is subjected to a gradually increasing load until it reaches its breaking point. The maximum load it can withstand before breaking is recorded, which gives an indication of the bar's strength. Hardness testing is another crucial measure of steel round bar quality. The Rockwell hardness test is frequently used, where a diamond or tungsten carbide ball is pressed into the surface of the bar with a specific load. The depth of the indentation made by the ball is measured, and the hardness value is determined based on a standardized scale. Additionally, the Brinell hardness test can be utilized, where a hardened steel ball is pressed into the surface of the round bar with a specific load. The diameter of the indentation formed is measured, and the hardness is calculated based on the applied load and the size of the indentation. Furthermore, there are non-destructive techniques such as ultrasonic testing and magnetic particle inspection that can provide information about the internal structure, defects, and cracks within the steel round bar, thus indirectly indicating its strength and hardness. It is important to note that various factors, including the composition of the steel, its heat treatment, and the manufacturing process, can influence the strength and hardness of a round bar. Therefore, it is advisable to consult standards and specifications that define the expected properties for the specific type of steel round bar being tested.
- 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 are the advantages of using nickel-tungsten alloy steel round bars?
- There are several advantages to using nickel-tungsten alloy steel round bars. Firstly, the inclusion of nickel enhances the corrosion resistance of the bars, making them suitable for use in harsh environments. Additionally, the addition of tungsten improves the strength and hardness of the bars, making them highly durable and able to withstand heavy loads and high temperatures. Furthermore, the alloy steel composition provides excellent wear resistance, making these bars ideal for applications that require prolonged use or frequent contact with abrasive materials. Overall, nickel-tungsten alloy steel round bars offer a combination of corrosion resistance, strength, and durability, making them a reliable choice for various industrial applications.
- Q:Can steel round bars be machined?
- Yes, steel round bars can be machined. Machining processes such as turning, milling, drilling, and grinding can be used to shape and cut steel round bars according to specific requirements.
- Q:What are the typical hardness values for different grades of steel round bars?
- The hardness values of steel round bars can differ depending on the grade and manufacturing process. However, there are some general hardness values that can serve as a reference. For low carbon or mild steel round bars, the typical hardness values range from approximately 120 to 250 Brinell Hardness (HB). These grades of steel are known for their relatively low strength and hardness, but they can be easily machined and welded. Medium carbon steel round bars, commonly used in applications requiring higher strength and hardness, typically have hardness values ranging from about 200 to 400 HB. These grades of steel are often utilized in construction, automotive, and machinery industries. High carbon or alloy steel round bars, which offer even greater strength and hardness, can have hardness values ranging from 400 to 700 HB or even higher. These grades of steel are commonly applied in applications that demand high wear resistance, like cutting tools, gears, and bearings. It is important to acknowledge that these hardness values are approximate and can vary based on factors such as heat treatment, alloy composition, and the specific manufacturing process used. Therefore, it is always advisable to consult the manufacturer's specifications or perform hardness testing to determine the precise hardness values for a particular grade of steel round bar.
- Q:Can steel round bars be used in the manufacturing industry?
- Certainly! In the manufacturing industry, steel round bars find extensive utility. These bars exhibit great versatility and are extensively employed across diverse manufacturing processes. Machining, forging, welding, and fabrication all benefit from their usage, facilitating the creation of an array of products, including machinery parts, tools, automotive components, construction materials, and more. These round bars boast exceptional robustness, durability, and remarkable wear resistance, rendering them highly suitable for arduous manufacturing applications. Furthermore, manufacturers can select from a range of grades and sizes, enabling them to opt for the most appropriate option tailored to their specific needs.
- Q:What are the different joining methods for steel round bars?
- There are several different joining methods that can be used for steel round bars, depending on the specific application and desired outcome. Some of the most common joining methods for steel round bars include welding, brazing, and mechanical joining. 1. Welding: Welding is a popular method for joining steel round bars. It involves melting the edges of the bars and fusing them together using heat. Various welding techniques such as arc welding, MIG welding, TIG welding, and spot welding can be used, depending on the thickness and type of steel being joined. Welding provides a strong and permanent bond, making it suitable for heavy-duty applications. 2. Brazing: Brazing is another method used to join steel round bars. It involves heating the bars and melting a filler metal that has a lower melting point than the steel. The molten filler metal is then drawn into the joint by capillary action, creating a strong bond when it solidifies. Brazing is often used when the base metals have different melting points or when a lower-temperature joining process is required. 3. Mechanical joining: Mechanical joining methods do not involve any heat or melting of the steel round bars. Instead, they rely on mechanical means to hold the bars together. Examples of mechanical joining methods include bolted connections, riveting, and clamping. These methods are often used when disassembly or adjustability is required, as they provide a non-permanent joint that can be easily undone. It is important to consider factors such as the strength requirements, environmental conditions, and the specific application when choosing a joining method for steel round bars. Each method has its own advantages and limitations, and the appropriate joining method should be selected to ensure a secure and durable bond between the round bars.
- Q:What are the factors to consider when selecting a steel round bar?
- When selecting a steel round bar, there are several factors that should be taken into consideration. Firstly, it is important to consider the grade of steel. Different grades of steel have varying properties and strengths, so the specific application and requirements should be evaluated. For example, if high corrosion resistance is needed, stainless steel grades like 304 or 316 may be suitable, whereas for structural applications, carbon steel grades like A36 or 1018 may be more appropriate. Secondly, the dimensions and size of the round bar should be considered. This includes the diameter, length, and tolerance requirements. The size should be chosen based on the specific application, load-bearing capacity, and the available space for installation. Thirdly, the surface finish and condition of the round bar should be assessed. This includes factors such as surface roughness, straightness, and any surface defects. The surface finish should be selected based on the desired aesthetics, functional requirements, and the manufacturing process. Another important factor is the availability and cost of the steel round bar. It is crucial to consider the availability of the desired grade and size from suppliers, as well as the associated cost. It is advisable to compare prices from different suppliers to ensure the best value for money. Furthermore, the required mechanical properties of the steel round bar should be evaluated. This includes factors such as tensile strength, yield strength, hardness, and ductility. The mechanical properties should align with the intended application and load-bearing requirements. Lastly, it is essential to consider any additional requirements or certifications that may be needed. This could include compliance with specific industry standards (e.g., ASTM, ISO), certifications (e.g., RoHS, REACH), or specific testing requirements (e.g., ultrasonic testing, impact testing). In conclusion, when selecting a steel round bar, it is important to consider the grade, dimensions, surface finish, availability, cost, mechanical properties, and any additional requirements. Taking into account these factors will help ensure that the steel round bar chosen is suitable for the intended application and meets all necessary specifications.
- Q:Are steel round bars suitable for the manufacturing of shafts?
- Indeed, steel round bars prove to be fitting for the production of shafts. Renowned for their robustness, longevity, and capacity to endure immense loads and rapid rotations, steel round bars excel in applications involving shafts. The circular form of the bar fosters even distribution of stress, thereby diminishing the likelihood of failure or distortion. Moreover, steel round bars can be easily manipulated and subjected to heat treatment in order to attain desired mechanical properties, such as hardness and toughness, thereby reinforcing their aptness for shaft production. All in all, steel round bars encompass the essential attributes demanded by shafts, thereby rendering them a trustworthy and widely employed material in diverse industries.
- Q:What is the difference between hot rolled and cold rolled steel round bars?
- The production methods and resulting qualities of hot rolled and cold rolled steel round bars differ. Hot rolled steel round bars are created by heating billets or ingots to a high temperature and shaping them into the desired form using rolling mills. This process yields a scaled surface and a relatively rough texture. The dimensions of hot rolled steel round bars have a wider tolerance and are less precise. They are commonly used in applications where precision is not crucial, such as construction and general manufacturing. In contrast, cold rolled steel round bars are produced by cooling down hot rolled steel to room temperature and subjecting it to further processing through cold rolling mills. This process leads to a smoother surface and more accurate dimensions. Cold rolled steel round bars have a tighter tolerance and are frequently employed in applications that require precision, like automotive components, machinery parts, and tools. Regarding mechanical properties, hot rolled steel round bars generally possess lower tensile strength and yield strength compared to cold rolled steel round bars. Cold rolled steel also tends to have higher hardness and a more uniform grain structure, which can enhance its strength and durability. In summary, the primary distinction between hot rolled and cold rolled steel round bars lies in their production process, surface finish, dimensional accuracy, and mechanical properties. The selection between the two depends on the specific requirements of the application and the desired qualities of the final product.
1. Manufacturer Overview |
|
|---|---|
| Location | |
| Year Established | |
| Annual Output Value | |
| Main Markets | |
| Company Certifications | |
2. Manufacturer Certificates |
|
|---|---|
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period | |
3. Manufacturer Capability |
|
|---|---|
| a)Trade Capacity | |
| Nearest Port | |
| Export Percentage | |
| No.of Employees in Trade Department | |
| Language Spoken: | |
| b)Factory Information | |
| Factory Size: | |
| No. of Production Lines | |
| Contract Manufacturing | |
| Product Price Range | |
Send your message to us
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
Similar products
New products
Hot products
Related keywords
