steel round bar

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Specifications of High Quality Round Bar

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

Usage and Applications of High Quality Round Bar

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.

Packaging & Delivery of High Quality Round Bar

Packaging Detail: All goods are packed in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)

Delivery Detail: 45 days

Trade terms: FOB, CFR, CIF

MOQ: 25 tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.

Weight: The price invoicing on theoretical weight basis or actual weight basis depends on customer’s request.

Shipment: The shipment of bulk break or container is depends on customer’s request and the situation of the port of destination.

Documents given: Full set of original clean on board bill of lading; Original signed commercial invoice; Original packing list; Policy of insurance; Certificate of origin and what the target market needs.

Production Flow of High Quality Round Bar

The common processes are preheated forging quenching, dual refinement solution process, cooling quenching and isothermal quenching. We use heat treatment for dual refinement solution process. The main measures process is high temperature solution and refinement cycle. High temperature solution can improve the carbide morphology and particle size. The aim is to make the loop refinement ultrafine austenite grains.

Q: Are steel round bars resistant to abrasion?: Steel round bars are typically resistant to abrasion. Steel is renowned for its strength and durability, allowing it to withstand the effects of friction and contact with other surfaces. However, the degree of abrasion resistance can differ based on the particular steel type and composition. Some steel grades, like hardened or alloy steels, are specifically engineered to possess enhanced resilience against abrasion. These steels undergo procedures like heat treatment or alloying to enhance their hardness and augment their ability to endure abrasion. All in all, steel round bars are a dependable option for situations where abrasion resistance is crucial.

Q: Can steel round bars be used in the production of flanges?: Yes, steel round bars can be used in the production of flanges. Round bars made of steel are commonly used as raw materials in the manufacturing process of flanges. These round bars are often machined, forged, or rolled into the desired flange shape. Steel round bars offer several advantages in the production of flanges, including high strength, durability, and resistance to corrosion. They can be easily fabricated and machined to meet specific size and dimensional requirements. Steel round bars are widely utilized in various industries, such as oil and gas, petrochemical, power generation, and construction, for producing flanges that are used in piping systems to connect pipes or equipment.

Q: Can steel round bars be used for making jewelry?: While gold and silver are commonly used for jewelry making, steel round bars can also be utilized in this craft. Steel round bars are particularly favored in industrial or modern jewelry designs due to their sleek and contemporary appearance. Moreover, steel possesses remarkable durability, resistance to tarnish, and affordability compared to other metals, making it an attractive option for those seeking a more economical choice. Nonetheless, it is worth noting that steel may not be suitable for delicate or intricate jewelry designs as it tends to be heavier than alternative metals. Furthermore, individuals with metal allergies should exercise caution as steel can potentially cause skin reactions. In such cases, it is advisable to opt for hypoallergenic or coated steel to ensure safety. Ultimately, the decision to incorporate steel round bars into jewelry making is contingent upon the desired style, durability, and budget preferences of the creator or purchaser.

Q: What are the advantages of using manganese-alloy steel round bars?: Manganese-alloy steel round bars offer several advantages. Firstly, they possess excellent strength and durability, making them ideal for applications that require high load-bearing capacity. Secondly, the presence of manganese in the alloy enhances hardenability, resulting in improved wear resistance and toughness. This makes manganese-alloy steel round bars suitable for use in environments with abrasive conditions or high impact forces. Additionally, these round bars exhibit good machinability, allowing for easy fabrication and shaping. Lastly, the corrosion resistance of manganese-alloy steel ensures a longer lifespan, reducing maintenance requirements and costs in various industries.

Q: What is the maximum length of a steel round bar that can be manufactured?: Several factors determine the maximum length of a steel round bar that can be produced. These factors include the bar's diameter or thickness and the limitations of the manufacturing process. Steel round bars typically range in length from a few feet to several hundred feet, or even longer. However, it is worth noting that as the bar's length increases, maintaining its straightness and dimensional accuracy becomes more challenging. This is especially true for thinner or larger diameter bars, as they are more prone to bending or warping during manufacturing. Moreover, logistical constraints such as transportation and handling can also impose limitations on the maximum length of a steel round bar that can be efficiently manufactured and delivered. Therefore, the maximum length of a steel round bar that can be produced is not a fixed value. Instead, it depends on various factors related to the specific requirements, capabilities, and limitations of the manufacturer, as well as the intended application for the bar.

Q: What are the advantages of using nickel-titanium alloy steel round bars?: There are several advantages of using nickel-titanium alloy steel round bars. Firstly, this alloy offers high strength and excellent corrosion resistance, making it suitable for various applications in industries such as aerospace, automotive, and medical. Additionally, nickel-titanium alloy steel has shape memory properties, allowing it to return to its original shape after deformation, making it ideal for applications requiring repeated bending or twisting. Furthermore, this alloy exhibits superelasticity, meaning it can withstand large amounts of strain without permanent deformation, providing enhanced durability and longevity. Overall, the unique combination of strength, corrosion resistance, shape memory, and superelasticity makes nickel-titanium alloy steel round bars a versatile and advantageous material choice.

Q: What are the advantages of using nickel-zinc alloy steel round bars?: Nickel-zinc alloy steel round bars offer numerous benefits. Firstly, they possess a remarkable strength-to-weight ratio, making them ideal for applications that prioritize durability and strength. This allows for the construction of lighter structures without compromising on performance. Secondly, nickel-zinc alloy steel round bars outperform other steel types in terms of corrosion resistance. This makes them perfect for use in harsh environments where exposure to moisture, chemicals, or extreme temperatures is common. Furthermore, the corrosion resistance properties of nickel-zinc alloy steel contribute to its longevity and ability to withstand the test of time. In addition, nickel-zinc alloy steel boasts excellent weldability and machinability, making it easy to work with and shape into various forms. This versatility allows for the creation of intricate designs and structures, making it a popular choice in the construction and manufacturing industries. Moreover, nickel-zinc alloy steel round bars exhibit favorable thermal and electrical conductivity properties. This makes them suitable for applications that require efficient heat or electricity transfer, such as in the production of electrical components or heat exchangers. Lastly, nickel-zinc alloy steel is renowned for its resistance to fatigue and wear, making it suitable for applications involving repetitive or high-stress operations. This ensures that structures or components made from nickel-zinc alloy steel maintain their performance and integrity over extended periods. To summarize, the advantages of nickel-zinc alloy steel round bars include a high strength-to-weight ratio, superior corrosion resistance, excellent weldability and machinability, favorable thermal and electrical conductivity, and high resistance to fatigue and wear. These properties establish nickel-zinc alloy steel as a reliable and versatile material for a wide range of applications.

Q: How do you calculate the weight of a steel round bar based on its length, diameter, and density?: To calculate the weight of a steel round bar, you can use the formula: weight = (π * density * diameter^2 * length) / 4.

Q: Can steel round bars be used in the production of machinery?: Yes, steel round bars can be used in the production of machinery. Steel round bars are commonly used in the manufacturing industry for various applications, including the production of machinery. The high strength and durability of steel make it an ideal material for constructing machine components that require strength and rigidity. Steel round bars can be machined, shaped, and welded to create different parts such as shafts, gears, axles, and structural components in machinery. The use of steel round bars ensures the reliability and longevity of the machinery, making it a preferred choice in many industries.

Q: Can steel round bars be used in the manufacturing industry?: Yes, steel round bars can be used in the manufacturing industry. Steel round bars are versatile and widely used in various manufacturing processes. They can be used for machining, forging, welding, and fabrication to create a wide range of products such as machinery parts, tools, automotive components, construction materials, and more. Steel round bars offer high strength, durability, and excellent resistance to wear, making them suitable for demanding manufacturing applications. Additionally, steel round bars are available in different grades and sizes, allowing manufacturers to choose the most suitable option for their specific requirements.

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