High quality round bar 5-100

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:

High Quality Round Bar Details:

Minimum Order Quantity:	25 Tons	Unit:	m.t.	Loading Port:	Tianjin
Supply Ability:	500 Tons Per Day	Payment Terms:	TT or L/C

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: What are the different types of steel round bar alloys for improved hardness and strength?: Improved hardness and strength are characteristics associated with various types of steel round bar alloys. Some commonly used alloys renowned for these qualities include: 1. Carbon Steel: Exceptional strength and hardness make carbon steel a popular choice. Its higher carbon content enhances durability and resistance to wear and tear. 2. Alloy Steel: Combining carbon steel with elements like manganese, nickel, chromium, or vanadium results in alloy steel. These additions enhance hardness and strength, making it suitable for applications requiring high tensile strength and toughness. 3. Stainless Steel: With a minimum chromium content of 10.5%, stainless steel is a corrosion-resistant alloy. Chromium's addition improves hardness and strength, making it ideal for applications demanding resistance to corrosion, heat, and wear. 4. Tool Steel: Tool steel is tailor-made for manufacturing various tools. It boasts high hardness, wear resistance, and strength. Elements like tungsten, molybdenum, or vanadium are often added to enhance its performance. 5. High-Speed Steel: Developed specifically for high-speed cutting tools like drills and milling cutters, high-speed steel excels in hardness and retains its cutting edge even at high temperatures. 6. Maraging Steel: Maraging steel, a low-carbon, high-nickel alloy, stands out for its exceptional strength, toughness, and resistance to fatigue. It finds applications in industries like aerospace and defense that demand high strength and durability. These examples merely scratch the surface of the steel round bar alloys known for improved hardness and strength. The choice of alloy depends on the intended application and desired properties for the final product.

Q: Are steel round bars suitable for use in the automotive industry?: Yes, steel round bars are suitable for use in the automotive industry. Steel round bars offer several advantages that make them ideal for automotive applications. Firstly, steel round bars provide excellent strength and durability, which are crucial for automotive components that need to withstand high levels of stress and impact. The high tensile strength of steel ensures that these components can handle the demanding conditions of the automotive industry, such as heavy loads and harsh environments. Secondly, steel round bars have good machinability, allowing them to be easily shaped and fabricated into various automotive parts. This versatility is essential for creating components with complex geometries, such as crankshafts, axles, and suspension components. Furthermore, steel round bars offer superior dimensional stability, ensuring that automotive parts maintain their shape and performance over time. This is particularly important for critical components that need to meet precise specifications and tolerances. Additionally, steel round bars have excellent heat resistance, making them suitable for applications that involve high temperatures, such as engine components and exhaust systems. The thermal stability of steel ensures that these parts can operate efficiently and reliably under extreme heat conditions. Moreover, steel is readily available and cost-effective compared to other materials, making it an attractive choice for the automotive industry. The abundance of steel resources and the well-established manufacturing processes contribute to its affordability, making it a practical option for mass production. In conclusion, steel round bars are highly suitable for use in the automotive industry due to their strength, durability, machinability, dimensional stability, heat resistance, and cost-effectiveness. These qualities make steel round bars an excellent choice for various automotive components, contributing to the overall performance, safety, and longevity of vehicles.

Q: Are steel round bars suitable for bridge construction applications?: Yes, steel round bars are suitable for bridge construction applications. Steel is known for its strength, durability, and versatility, making it an ideal material for bridge construction. Steel round bars provide excellent structural support and can withstand heavy loads and harsh environmental conditions. Additionally, steel round bars can be easily fabricated and customized to meet specific bridge design requirements.

Q: What are the common finishes for steel round bars?: The common finishes for steel round bars include hot rolled, cold drawn, turned and polished, and centerless ground.

Q: Are steel round bars resistant to UV radiation?: Steel round bars are not typically resistant to UV radiation. UV radiation can cause steel to undergo a process known as oxidation, which results in the formation of rust. This can weaken the structural integrity of the steel and potentially cause it to deteriorate over time. To protect steel round bars from UV radiation, they can be coated with a protective layer, such as paint or a specialized coating, that acts as a barrier against UV rays. Additionally, storing steel round bars in a shaded area or using a cover can help minimize their exposure to UV radiation and extend their lifespan.

Q: What is the maximum silicon content allowed for steel round bars?: The maximum silicon content allowed for steel round bars is typically around 0.35%.

Q: Specifications of the same kind of galvanized round bar more expensive than round steel?: The general market price than ordinary steel galvanized steel bar of your 2000-3000 dollars per ton, according to your purchase requirements, price range of relatively large fluctuations, such as whether to open a formal invoice, transport distance, purchase quantity, relationship with your level of economic development, the developed area of fierce market competition, the price is relatively low. The prices and prices of large factories and small factories are not the same. The prices of big factories are generally high, and the prices of small factories are low.

Q: What are the advantages of using case-hardening steel round bars?: Case-hardening steel round bars offer several benefits for various applications. To begin with, these round bars possess a toughened outer layer, known as the "case," while maintaining a softer and more malleable core. This unique combination allows for exceptional surface wear resistance, making them highly suitable for situations where the material encounters abrasive or erosive forces. Furthermore, the hardened outer layer enhances the overall strength and durability of the round bars, thereby extending their lifespan. Another advantage of case-hardening steel round bars lies in their remarkable ability to withstand heavy impact loads. The hardened outer layer acts as a protective barrier, effectively absorbing and dispersing the energy from impacts, thus preventing any deformation or breakage. This makes them particularly well-suited for applications involving substantial loads or impacts, such as in the fields of machinery or construction equipment. Moreover, case-hardening steel round bars provide enhanced resistance against fatigue. The hardened surface layer aids in distributing stresses evenly, reducing the likelihood of cracks or fractures developing during cyclic loading conditions. Consequently, they prove to be an excellent choice for applications that demand long-term durability and the ability to withstand repeated stress, such as in automotive components or gears. Additionally, these round bars demonstrate excellent machinability. The soft and malleable core allows for easy cutting, drilling, and shaping, while the hardened surface ensures the necessary wear resistance. This aspect makes them both cost-effective and efficient to work with, enabling them to be effortlessly molded into various shapes and sizes to meet specific design requirements. In conclusion, the utilization of case-hardening steel round bars offers a plethora of advantages, including outstanding wear resistance, high impact load resistance, improved fatigue resistance, and excellent machinability. These characteristics render them a versatile and dependable choice for a wide array of applications across industries such as automotive, construction, and manufacturing.

Q: What are the different types of steel round bar coatings used in the marine industry?: There are several different types of steel round bar coatings that are commonly used in the marine industry. These coatings are specifically designed to protect the steel from corrosion and other environmental factors that are prevalent in marine environments. Some of the most common types of steel round bar coatings used in the marine industry include: 1. Galvanized Coating: Galvanized steel round bars are coated with a layer of zinc. This coating provides excellent protection against corrosion and is highly durable. Galvanized coatings are commonly used in marine applications where the steel is exposed to saltwater and other corrosive elements. 2. Epoxy Coating: Epoxy coatings are widely used in the marine industry due to their excellent corrosion resistance and adhesion properties. These coatings are typically applied in multiple layers to ensure maximum protection. Epoxy coatings are effective in protecting steel round bars from saltwater, chemicals, and abrasion. 3. Polyurethane Coating: Polyurethane coatings are known for their exceptional resistance to UV rays, chemicals, and abrasion. They provide a high level of protection against corrosion in marine environments. Polyurethane coatings are commonly used in offshore structures and marine equipment where durability and long-term performance are crucial. 4. Organic Coatings: Organic coatings, such as acrylics and vinyls, are often used in the marine industry for their ability to provide a barrier against corrosion and environmental factors. These coatings are flexible, easy to apply, and resistant to UV radiation. They are commonly used in marine applications where aesthetics and color retention are important. 5. Ceramic Coating: Ceramic coatings offer exceptional resistance to high temperatures, chemicals, and abrasion. They provide a hard, protective layer on steel round bars, making them suitable for marine applications that involve high heat and harsh environments. It is important to note that the selection of the appropriate steel round bar coating depends on the specific requirements of the marine application. Factors such as the type of exposure, expected service life, and budget should be taken into consideration when choosing the most suitable coating for a particular marine project.

Q: What are the different bending methods for steel round bars?: There are several bending methods for steel round bars, including hot bending, cold bending, and induction bending. Hot bending involves heating the steel bar to a high temperature and then bending it into the desired shape. Cold bending, on the other hand, is done at room temperature and involves applying force to the bar to achieve the desired bend. Induction bending uses heat generated by electromagnetic induction to soften the steel and then applies force to bend it.

Send your message to us

*Email

*TEL

*Quantity

*Unit