Roung BAR

Ref Price:

Loading Port:: China Main Port

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: -

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Product Description:

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: Theprice 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:Can steel round bars be used in the chemical industry?: Yes, steel round bars can be used in the chemical industry. Steel is often preferred in the chemical industry due to its high strength and durability. Steel round bars are commonly used for construction of storage tanks, pipelines, and equipment in chemical plants. The material's resistance to corrosion makes it suitable for handling various types of chemicals, acids, and alkalis. Steel round bars also provide excellent structural support, which is crucial in maintaining the integrity and safety of chemical processes. Overall, steel round bars are a reliable and widely used material in the chemical industry.

Q:What is the difference between a solid steel round bar and a hollow steel round bar?: A solid steel round bar is a cylindrical metal rod with a consistent diameter along its entire length. It is made of solid steel and does not have any empty space inside. On the other hand, a hollow steel round bar also has a cylindrical shape but contains an empty space within its center. The size of this empty space can vary depending on the design and purpose of the bar. The main difference between the two lies in their structural integrity and weight-bearing capacity. A solid steel round bar offers greater strength and stability compared to a hollow steel round bar. This is because the solid bar is made of continuous steel material, making it more resistant to pressure-induced bending, twisting, or deformations. It is commonly used in industries that require high strength and durability, such as construction, engineering, and manufacturing. In contrast, a hollow steel round bar may have reduced strength and load-bearing capacity due to the empty space inside. However, the hollow design provides certain benefits in terms of weight, cost, and flexibility. The hollow space reduces the overall weight of the bar, making it suitable for applications where weight is a critical factor, such as aerospace or automotive industries. Moreover, the hollow space can be utilized for various purposes, such as passing electrical wires or fluids, providing ventilation, or reducing material costs by using less steel. Ultimately, the choice between a solid steel round bar and a hollow steel round bar depends on the specific requirements of the application. If strength and stability are crucial, a solid bar is the preferred choice. In contrast, if weight reduction, cost-efficiency, or additional functionality is desired, a hollow bar may be more suitable.

Q:Can steel round bars be machined or forged?: Yes, steel round bars can be both machined and forged. Machining involves removing material from the round bar to create a desired shape or size, while forging involves shaping the steel through the application of heat and pressure. Both processes are commonly used to manipulate steel round bars for various applications.

Q:Can steel round bars be used in the pharmaceutical industry?: Yes, steel round bars can be used in the pharmaceutical industry. Steel round bars are commonly used in various industries, including pharmaceuticals, due to their strength, durability, and versatility. In the pharmaceutical industry, steel round bars can be utilized for a range of applications such as manufacturing equipment, machinery, and storage systems. These bars can be used to construct pharmaceutical manufacturing equipment like mixers, reactors, and centrifuges, which require robust and reliable materials to ensure efficiency and safety in pharmaceutical production processes. Additionally, steel round bars can be employed in the construction of storage systems such as racks and shelves, providing a sturdy and secure solution for organizing pharmaceutical products and supplies. The corrosion resistance and ease of cleaning of steel make it suitable for maintaining hygienic conditions in pharmaceutical facilities. Overall, steel round bars offer the pharmaceutical industry a reliable and cost-effective material option for various applications.

Q:Are steel round bars magnetic?: Yes, steel round bars can be magnetic. The magnetic properties of steel depend on its composition and processing. Most commonly used steel alloys, such as carbon steel or stainless steel, contain iron as the main component. Iron is a ferromagnetic material, which means it can be magnetized. Therefore, steel round bars made from these alloys will exhibit magnetic properties. However, it is important to note that the strength of the magnetism can vary depending on the specific composition of the steel. Some stainless steel alloys, for example, have a lower magnetic permeability and may exhibit weaker magnetic properties compared to carbon steel.

Q:Can steel round bars be used for making fasteners or bolts?: Yes, steel round bars can be used for making fasteners or bolts. Steel is a commonly used material for fasteners and bolts due to its high strength, durability, and resistance to corrosion. Round bars made of steel can be easily machined and threaded to create various types of fasteners and bolts, including screws, nuts, and threaded rods. The specific grade of steel used would depend on the application and required strength properties. However, it is important to note that the manufacturing process and quality control are crucial in ensuring the reliability and performance of the final product.

Q:How do you determine the strength of a steel round bar?: The strength of a steel round bar can be determined through various methods, including physical testing and material specifications. One common method is to conduct a tensile test, which involves pulling the bar until it reaches its breaking point. This test helps determine the ultimate tensile strength (UTS) of the steel, which is the maximum stress it can withstand before fracturing. The UTS is typically measured in units of force per unit of cross-sectional area, such as pounds per square inch (psi) or megapascals (MPa). Another important strength property to consider is the yield strength. This is the stress level at which the steel starts to deform permanently, without any increase in load. The yield strength is crucial in determining the structural integrity of the bar, as it indicates the maximum load it can bear without undergoing plastic deformation. In addition to physical testing, the strength of a steel round bar can also be determined by its material specifications. Steel manufacturers provide information about the composition and mechanical properties of their products. This includes details about the steel grade, which indicates the alloying elements present in the steel and their concentrations. Different steel grades have varying strength properties, which can help determine the strength of the round bar. It is important to note that the strength of a steel round bar may also be influenced by other factors, such as heat treatment or surface conditions. Heat treatment processes like quenching and tempering can enhance the strength and hardness of the steel, while surface conditions like coatings or treatments can improve corrosion resistance. To accurately determine the strength of a steel round bar, it is recommended to consult the material specifications provided by the manufacturer and consider conducting physical tests, such as tensile testing, if necessary.

Q:What is the difference between a bright and a hot rolled steel round bar?: The main difference between a bright and a hot rolled steel round bar lies in their manufacturing processes. A hot rolled steel round bar is produced by heating the steel billet or ingot to high temperatures and then rolling it into the desired shape at elevated temperatures. This process results in a rougher surface finish and a slightly larger diameter tolerance compared to bright bars. On the other hand, a bright steel round bar is manufactured by cold drawing the hot rolled steel bar through a die to achieve a smoother surface finish and tighter dimensional tolerances. Overall, the bright steel round bar has a more refined appearance and is often preferred for applications requiring superior surface finish and dimensional accuracy.

Q:Can steel round bars be used for making fasteners?: Certainly! Fasteners can indeed be made using steel round bars. Manufacturers commonly utilize steel round bars to produce fasteners like bolts, screws, and rivets. The strength and durability of steel make it an excellent choice for fasteners, as it can endure significant stress and ensure a secure connection. Moreover, steel round bars can be conveniently machined and threaded to achieve the desired shape and size required for fasteners. In summary, steel round bars are highly dependable and frequently employed in the manufacturing process of fasteners.

Q:Are steel round bars used in the construction industry?: Yes, steel round bars are commonly used in the construction industry. They are often used as structural elements, such as reinforcement in concrete structures, as well as in the fabrication of various components and fittings.

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