Round Bar Hot Rolled High Quality Q195 Q235 8MM-22MM

Round Bar Hot Rolled High Quality Q195 Q235 8MM-22MM

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Product Description:

OKorder is offering Round Bar Hot Rolled High Quality Q195 Q235 8MM-22MM 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 Round Bar Hot Rolled High Quality Q195 Q235 8MM-22MM 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 you package the angle steel when shipping?

A2: All goods are packed in bundles with steel strips and shipped by container or break bulk.

Q3: The products are invoicing on theoritical weight or on actual weight?

A3: We can do it in both manners, according to the customers' request.

Round Bar Hot Rolled High Quality Q195 Q235 8MM-22MM

Q: How are steel round bars used in the construction of tunnels and underground structures?: Steel round bars are commonly used in the construction of tunnels and underground structures as reinforcement for concrete. These bars are placed within the concrete to provide strength and stability, preventing the structure from cracking or collapsing under pressure. The steel round bars also enhance the overall durability and load-bearing capacity of the tunnel or underground structure, ensuring its long-term structural integrity.

Q: What are the advantages of using steel round bars over other materials?: There are several advantages to using steel round bars over other materials: 1. Strength and durability: Steel round bars are known for their high strength and durability, making them suitable for various applications. They can withstand heavy loads and resist deformation, making them ideal for structural purposes. 2. Versatility: Steel round bars come in a wide range of sizes, grades, and finishes, making them highly versatile. They can be easily customized to meet specific requirements, such as different lengths, diameters, and surface finishes. 3. Cost-effective: Steel round bars offer a cost-effective solution compared to other materials. Their abundance and efficient manufacturing processes make them readily available and affordable. Additionally, their high strength-to-weight ratio allows for the use of smaller quantities of steel while achieving the same level of strength. 4. Corrosion resistance: Steel round bars can be produced with different finishes, including galvanized or stainless steel, which enhances their resistance to corrosion. This makes them suitable for outdoor applications or in environments where they may come into contact with moisture or chemicals. 5. Machinability: Steel round bars are known for their excellent machinability, meaning they can be easily cut, drilled, or shaped to meet specific design requirements. This characteristic allows for efficient processing and reduces production costs. 6. Fire resistance: Steel is inherently fire-resistant and does not contribute to the spread of flames. This makes steel round bars a preferred choice in applications where fire safety is a concern, such as in construction or industrial settings. 7. Recyclability: Steel is highly recyclable, which makes steel round bars an environmentally friendly option. They can be easily melted down and reused to create new steel products without losing their properties or strength. Overall, the advantages of using steel round bars over other materials include their strength, durability, versatility, cost-effectiveness, corrosion resistance, machinability, fire resistance, and recyclability. These factors make steel round bars a preferred choice in various industries, including construction, manufacturing, automotive, and infrastructure projects.

Q: Are steel round bars suitable for welding applications?: Yes, steel round bars are suitable for welding applications. Steel is a commonly used material in welding due to its high strength and durability. Round bars have a consistent shape and provide good stability and support during the welding process. They can be easily welded using various methods such as MIG, TIG, or stick welding, making them ideal for a wide range of welding applications in industries like construction, manufacturing, and automotive.

Q: How to distinguish a round bar from forging? Cold drawing? Hot rolling?: Round bar is divided into three parts: hot rolling, forging and cold drawing. Standard Specification for hot rolled round steel is 5.5-250 mm. Where: 5.5-25 mm small round steel mostly straight bundles of supply, used for steel, bolts and various mechanical parts; greater than 25 mm round steel, seamless steel pipe is mainly used for the manufacture of mechanical parts of the tube, etc..

Q: Are steel round bars resistant to chemicals or acids?: Steel round bars are generally resistant to most chemicals and acids. However, their resistance may vary depending on the specific type of steel and the concentration and nature of the chemical or acid being used. Stainless steel round bars, for example, are highly resistant to corrosion and many types of acids, making them suitable for use in various industries including chemical processing, food processing, and pharmaceuticals. However, it is important to note that some aggressive chemicals and acids, such as hydrochloric acid or sulfuric acid at high concentrations, can still cause corrosion or damage to steel round bars. In such cases, it is advisable to consult with experts or refer to specific material compatibility charts to determine the most suitable steel alloy for the intended application.

Q: What are the different types of steel round bar alloys for improved machinability?: There are several types of steel round bar alloys that are known for their improved machinability. Some common alloys include free-machining steel alloys such as 12L14, 1215, and 1144. These alloys contain higher levels of sulfur, which helps break up the chips during machining and improves the overall machinability of the steel. Additionally, there are also stainless steel alloys such as 303 and 416, which are specifically designed for improved machinability and are often used in applications where corrosion resistance is required.

Q: Can steel round bars be used for hydraulic applications?: Yes, steel round bars can be used for hydraulic applications. Steel round bars offer high strength and durability, making them suitable for use in hydraulic systems that require robust components to handle high pressures and loads. Additionally, steel round bars can be easily machined and welded to meet specific hydraulic application requirements.

Q: What are the tolerance standards for steel round bars?: The tolerance standards for steel round bars vary depending on the specific requirements and industry standards. Generally, tolerance standards for steel round bars are specified in terms of diameter, straightness, length, and surface finish. These tolerances ensure that the bars meet the desired dimensions and quality standards, allowing for proper fit and function in various applications.

Q: What is the fatigue strength of a steel round bar?: The fatigue strength of a steel round bar denotes its capacity to endure repeated or cyclic loading without failure. It gauges the bar's resistance to fatigue or fatigue-induced failure. Various factors, including material composition, manufacturing process, surface finish, and geometry of the bar, influence the fatigue strength of a steel round bar. To ascertain the fatigue strength, standardized fatigue tests are typically performed. These tests replicate real-world conditions by subjecting the bar to repeated loading cycles. A specific stress amplitude or stress range is applied to the bar, and the number of cycles needed to cause failure is recorded. The fatigue strength of a steel round bar is commonly expressed as the stress level or stress range at which failure occurs after a specific number of cycles, such as 10^6 cycles or 10^7 cycles. This value is often referred to as the fatigue limit or endurance limit. Steel round bars generally possess high fatigue strength compared to other materials, and the measurement is typically in terms of stress, either in megapascals (MPa) or pounds per square inch (psi). It is crucial to note that the fatigue strength of a steel round bar can fluctuate based on variables like surface defects, residual stresses, temperature, and environmental conditions. Hence, considering these factors is imperative when determining the fatigue strength of a particular steel round bar for a given application.

Q: What are the advantages of using weather-resistant steel round bars?: There are several advantages to using weather-resistant steel round bars. Firstly, weather-resistant steel round bars are designed to withstand the effects of harsh weather conditions. They are specifically formulated to resist corrosion, rust, and other forms of degradation caused by exposure to rain, snow, humidity, and even saltwater environments. This makes them highly suitable for outdoor applications, such as construction projects, marine structures, and infrastructure in coastal areas. Secondly, the use of weather-resistant steel round bars eliminates the need for additional protective coatings or treatments. Unlike regular steel, which requires regular maintenance and painting to prevent rust and corrosion, weather-resistant steel round bars possess a natural protective layer that forms on the surface, known as patina. This patina acts as a barrier against further corrosion, reducing the overall maintenance requirements and extending the lifespan of the material. Thirdly, weather-resistant steel round bars offer exceptional strength and durability. They are manufactured using a special alloy composition, which enhances their mechanical properties and makes them highly resistant to impact, bending, and fatigue. This makes them ideal for structural applications where strength and reliability are crucial, such as in bridges, building frameworks, and heavy machinery. Additionally, weather-resistant steel round bars have aesthetic advantages. The unique patina that develops on the surface of these bars gives them a distinctive appearance, often described as an attractive and warm reddish-brown color. This natural weathered look can be desirable for architectural and design purposes, adding a visually appealing element to structures and outdoor installations. Lastly, the use of weather-resistant steel round bars contributes to sustainability and cost-effectiveness. Due to their long lifespan and low maintenance requirements, these bars offer a more sustainable solution compared to traditional steel, which often requires frequent painting and replacement. Furthermore, the initial investment in weather-resistant steel round bars may be higher than regular steel, but the long-term savings in maintenance and replacement costs make them a cost-effective choice in the long run. In conclusion, the advantages of using weather-resistant steel round bars include their ability to withstand harsh weather conditions, eliminate the need for additional protective coatings, provide exceptional strength and durability, offer aesthetic appeal, and contribute to sustainability and cost-effectiveness.

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