Round Bar High Quality Q195 Q235 5MM-28MM Hot Rolled

Round Bar High Quality Q195 Q235 5MM-28MM Hot Rolled System 1

Round Bar High Quality Q195 Q235 5MM-28MM Hot Rolled

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Product Description:

OKorder is offering high quality Round Bar High Quality Q195 Q235 5MM-28MM Hot Rolledat 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 Round Bar High Quality Q195 Q235 5MM-28MM Hot Rolledare 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.

Round Bar High Quality Q195 Q235 5MM-28MM Hot Rolled

Q: How do you measure the straightness of a steel round bar?: One common method to measure the straightness of a steel round bar is by using a straight edge or a precision ruler. By placing the straight edge along the length of the bar and observing any gaps or deviations between the two, one can determine the straightness. Additionally, a laser alignment tool can also be used to measure and identify any bends or irregularities in the bar's straightness.

Q: Are steel round bars suitable for high-stress applications?: Steel round bars are well-suited for high-stress situations due to their strength and durability. The remarkable properties of steel, including its strength and durability, make it a perfect material for environments with high levels of stress. In particular, round bars offer excellent tensile strength and can withstand heavy loads and intense pressure. They are widely used in industries like construction, manufacturing, and engineering, where reliable and robust materials are needed for high-stress applications. The round shape of the bars also ensures consistent strength, guaranteeing dependable performance even in extreme conditions. Moreover, steel round bars can be heat-treated to enhance their mechanical properties, making them even more suitable for high-stress situations. In summary, steel round bars are a dependable and efficient choice for demanding environments that require exceptional strength and resilience.

Q: What are the different grades of carbon steel round bars for structural applications?: Carbon steel round bars for structural applications are available in a variety of grades, each with its own unique properties and characteristics. Some of the common grades include: 1. ASTM A36: This is one of the most widely used grades of carbon steel round bars for structural applications. It offers excellent weldability and machinability, making it suitable for a wide range of structural projects. 2. ASTM A572-50: This grade is a high-strength, low-alloy structural steel that offers improved strength-to-weight ratio compared to traditional carbon steel. It is commonly used in construction and structural applications where high strength is required. 3. ASTM A588: This grade is a high-strength, low-alloy structural steel that is primarily used in applications where corrosion resistance is needed. It offers excellent atmospheric corrosion resistance and is often used in outdoor structures such as bridges and buildings. 4. ASTM A709: This grade is a high-strength, low-alloy structural steel that is commonly used in bridge construction. It offers excellent strength, weldability, and toughness, making it suitable for demanding structural applications. 5. ASTM A105: This grade is a low-carbon steel with good strength and impact resistance. It is commonly used in applications where high strength and ductility are required, such as in the construction of heavy equipment and machinery. These are just a few examples of the different grades of carbon steel round bars available for structural applications. The choice of grade depends on factors such as desired strength, weldability, machinability, and corrosion resistance. It is important to consult with a steel supplier or engineer to determine the most appropriate grade for a specific application.

Q: Can steel round bars be used for making decorative items?: Yes, steel round bars can be used for making decorative items. Steel round bars can be bent, shaped, and welded to create unique and decorative designs. The durability and strength of steel make it a suitable material for creating various decorative items such as sculptures, furniture, and architectural elements.

Q: What are the different finishes available for steel round bars?: There are several different finishes available for steel round bars, each of which serves a specific purpose and provides distinct benefits. Some of the most common finishes include: 1. Hot Rolled: This finish is achieved by heating the steel above its recrystallization temperature and then rapidly cooling it. It results in a rough, scaly surface texture that provides excellent corrosion resistance and durability. 2. Cold Rolled: In this process, the steel is rolled at room temperature, resulting in a smooth and polished finish. Cold rolled steel round bars are known for their precise dimensions, tight tolerances, and improved surface finish. 3. Bright Drawn: This finish involves subjecting the steel round bars to a drawing process, where they are pulled through a die to achieve the desired shape and size. It leaves the surface smooth, bright, and free from any imperfections or defects. 4. Polished: Polishing is typically done after the steel round bars have been cold rolled or drawn. It involves using abrasive materials or chemical treatments to remove any surface imperfections and create a highly reflective finish. Polished steel round bars are often used in decorative applications. 5. Ground: Grinding is a process where the steel round bars are subjected to abrasive wheels to remove any surface imperfections or irregularities. It results in a smooth and even finish, making the bars suitable for applications where tight tolerances and uniformity are required. 6. Galvanized: Galvanizing is a coating process where the steel round bars are dipped in a bath of molten zinc. This creates a protective layer that prevents corrosion and increases the lifespan of the bars, making them suitable for outdoor applications or environments with high humidity or moisture. These different finishes offer a range of properties and appearances, allowing steel round bars to be used in various industries and applications such as construction, automotive, manufacturing, and engineering. It is important to consider the specific requirements and conditions of the intended use when selecting the appropriate finish for steel round bars.

Q: What are the different types of steel round bar surface finishes for improved cleanliness?: Different surface finishes can be used on steel round bars to enhance cleanliness. Here are some examples: 1. Achieving a bright surface finish involves polishing the steel round bar, resulting in a smooth and reflective appearance. This type of finish is commonly utilized in industries where cleanliness and aesthetics are crucial, such as the manufacturing of kitchen appliances or decorative items. 2. A satin finish can be achieved by brushing the steel round bar with fine abrasive pads, resulting in a smooth and matte surface. This finish is often preferred in applications that require a clean and modern look, like architectural designs or furniture manufacturing. 3. The pickled finish involves immersing the steel round bar in an acid solution, which eliminates impurities and oxides from the surface. This type of finish is commonly used in applications where the steel round bar will undergo further processing, such as the production of pipes or tubes. 4. To obtain a passivated finish, the steel round bar is treated with a chemical solution that forms a protective oxide layer on the surface. Passivated finishes enhance the steel's corrosion resistance, making it suitable for use in harsh or corrosive environments. 5. The shot blasted finish involves propelling small metal or ceramic particles at high velocity onto the surface of the steel round bar. This process removes scale, rust, or surface contaminants, resulting in a clean and textured surface. Shot blasted finishes are often employed when a strong bond between the steel round bar and another material, such as paint or coating, is required. Ultimately, the choice of surface finish for steel round bars depends on the specific application and the desired level of cleanliness. Each finish offers distinct properties and advantages, allowing for improved cleanliness and performance in various industries.

Q: Can steel round bars be used in the production of fasteners?: Yes, steel round bars can be used in the production of fasteners. Steel round bars can be machined, threaded, and cut to the required length to create various types of fasteners, such as bolts, screws, and studs. The strength and durability of steel make it an ideal material for fasteners that need to withstand high loads and provide secure fastening in various applications.

Q: How do steel round bars compare to fiberglass or composite bars?: Steel round bars and fiberglass or composite bars exhibit distinct differences in their properties and applications. Strength and Durability: Steel round bars possess exceptional strength and durability, boasting a high tensile strength that enables them to withstand heavy loads and stress. Conversely, fiberglass or composite bars possess a favorable strength-to-weight ratio but generally lack the same level of strength as steel bars. They may be more susceptible to bending or breaking under high pressure or impact. Weight: A significant disparity exists in weight between steel bars and fiberglass or composite bars. This contrast can prove advantageous in certain applications where additional weight is necessary for stability or to counteract external forces. Conversely, situations that prioritize weight reduction, such as in the aerospace or automotive industries, favor fiberglass or composite bars due to their lightweight nature. Corrosion Resistance: Steel bars are prone to corrosion, particularly when exposed to moisture or harsh environments. Consequently, they necessitate regular maintenance and protective coatings to prevent rusting. In contrast, fiberglass or composite bars inherently possess corrosion-resistant properties, rendering them suitable for applications prevalent in marine or chemical industries that often involve exposure to corrosive elements. Electrical Conductivity: Steel round bars boast electrical conductivity, which proves advantageous in specific applications requiring electrical grounding or conductivity. Fiberglass or composite bars, by contrast, are non-conductive and preferred in situations necessitating electrical insulation, such as in electrical installations or sensitive electronic systems. Cost: Steel bars generally offer a more cost-effective solution compared to fiberglass or composite bars. The abundance of raw materials for steel production contributes to their affordability in most cases. Conversely, fiberglass or composite bars involve intricate manufacturing processes and the utilization of specialized materials, leading to higher production costs. In conclusion, steel round bars are favored for their strength, durability, and cost-effectiveness, finding widespread use in construction, manufacturing, and infrastructure projects. Conversely, fiberglass or composite bars present advantages in weight reduction, corrosion resistance, and electrical insulation, frequently finding application in industries that prioritize these properties. The selection between the two hinges upon the specific requirements and conditions of the project or industry.

Q: What is the typical hardness of a steel round bar?: The typical hardness of a steel round bar can vary depending on the specific grade and composition of the steel. However, most steel round bars have a typical hardness ranging from 20 to 60 HRC (Rockwell Hardness Scale).

Q: What are the different types of steel round bar coatings used in the automotive industry?: There are several different types of steel round bar coatings that are commonly used in the automotive industry. These coatings are applied to the steel bars to enhance their durability, corrosion resistance, and overall performance. 1. Galvanized Coating: This is one of the most widely used coatings for steel round bars in the automotive industry. Galvanized coating involves applying a layer of zinc to the surface of the steel bar. This coating provides excellent corrosion resistance, protecting the steel from rust and other forms of degradation. 2. Epoxy Coating: Epoxy coatings are often used in automotive applications that require high chemical resistance. This type of coating provides a protective barrier against chemicals, moisture, and other corrosive substances. Epoxy coatings also have excellent adhesion properties, ensuring long-lasting performance. 3. Powder Coating: Powder coating is a popular choice for steel round bars in the automotive industry due to its durability and aesthetic appeal. This coating involves applying a dry powder to the surface of the steel bar, which is then heated to create a tough, protective layer. Powder coatings come in a wide range of colors and finishes, allowing for customization and branding opportunities. 4. Ceramic Coating: Ceramic coatings offer exceptional heat resistance, making them ideal for automotive applications that involve high temperatures. This type of coating provides a protective barrier that prevents heat damage and improves the overall lifespan of the steel round bars. 5. Phosphate Coating: Phosphate coatings are often used as a pre-treatment before applying other types of coatings. This coating improves the adhesion of subsequent coatings and provides additional corrosion resistance. Phosphate coatings also enhance the lubricity of the steel bar, reducing friction and wear. These are just a few examples of the different types of steel round bar coatings used in the automotive industry. Each coating offers unique benefits and is chosen based on the specific requirements of the application. Overall, these coatings play a crucial role in improving the performance and longevity of steel round bars in automotive applications.

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