Steel Round Bar 5-28mm Hot Rolled GB Q235 Q195

Steel Round Bar 5-28mm Hot Rolled GB Q235 Q195

Ref Price:

Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 10000 m.t./month

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

You Might Also Like

mild steel round bar

ROUND BAR

40CrMo China Standard Forged Steel Round Bar

Q235, A36 SS400 Hot Rolled Steel Round Bar

Hot Rolled Mild Round Steel Bar Q235, SAE1020,SAE1045

Carbon Structural Steel Square Bars SAE1018CR

AISI 304 Stainless Steel Bar Stainless Steel Shafting Polished

Hot Rolled Carbon Steel Round Bars S10C

Specification

Standard:

AISI,JIS,GB,BS,DIN,API,EN,ASTM

Technique:

Hot Rolled

Shape:

Round

Surface Treatment:

customize

Steel Grade:

Q195,Q235,customize

Certification:

ISO,SGS,BV

Thickness:

customize

Length:

customize

Net Weight:

customize

High Quality Round Bar 5-28mm Hot Rolled GB Q235 Q195

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 High Quality Round Bar 5-28mm Hot Rolled GB Q235 Q195are 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

Steel Round Bar 5-28mm Hot Rolled GB Q235 Q195

Q:Can steel round bars be used for making body panels?: No, steel round bars are not typically used for making body panels. Body panels are usually made from sheet metal or aluminum, as they offer better flexibility, ease of shaping, and weight reduction compared to steel round bars.

Q:How are steel round bars tested for quality and compliance?: To ensure quality and compliance, steel round bars undergo a series of rigorous tests and inspections. The most commonly used test is the tensile test, which measures the bar's ability to withstand pulling forces. By stretching the bar until it breaks and analyzing the stress-strain curve, its mechanical properties, including yield strength, ultimate tensile strength, and elongation, can be determined. Another important test is the hardness test, which assesses the bar's surface resistance to indentation. This test helps determine the material's strength and its ability to resist wear and deformation. Chemical analysis is conducted to verify the composition of the steel round bars. This test determines the percentage of elements present, such as carbon, manganese, silicon, sulfur, and phosphorus. It ensures that the steel meets the required specifications and is suitable for its intended application. Dimensional inspection is crucial to ensure that the steel round bars meet the specified dimensions and tolerances. This involves using calibrated instruments to measure the length, diameter, and straightness of the bars. The surface quality is assessed through visual inspection and non-destructive testing methods, such as ultrasonic testing and magnetic particle inspection. These tests detect any surface defects, cracks, or discontinuities that may affect the bar's performance and integrity. Additionally, specialized tests may be conducted based on the intended application of the steel round bars. For example, bars used in the construction industry may undergo corrosion resistance or impact testing. In summary, the quality and compliance of steel round bars are assured through a comprehensive range of tests, inspections, and analyses. These tests enable manufacturers and customers to determine the suitability and reliability of the bars for specific applications, ensuring the safety and effectiveness of the final products.

Q:Can steel round bars be used in high-pressure applications?: Yes, steel round bars can be used in high-pressure applications. Steel round bars are known for their strength and durability, making them suitable for various industrial and mechanical applications. They have the ability to withstand high pressure and provide structural stability, making them a popular choice in industries such as oil and gas, construction, and manufacturing. However, it is important to choose the right grade and quality of steel round bars to ensure they can withstand the specific pressure requirements of the application.

Q:What are the different shapes available in steel round bars?: There are several different shapes available in steel round bars, including round, square, hexagonal, and octagonal.

Q:What are the cost considerations for steel round bars?: The cost of steel round bars can vary depending on several factors. Firstly, the cost can be greatly influenced by the type and grade of steel used in production. Different types of steel, such as carbon steel, alloy steel, or stainless steel, have varying costs due to differences in their composition and properties. Higher grade steel, which offers superior strength and durability, tends to be more expensive compared to lower grade options. Secondly, the cost is affected by the size and dimensions of the round bars. Larger diameter and length of the bars require more raw material and additional processing, resulting in higher costs. Moreover, specialized shapes or custom sizes may necessitate extra manufacturing steps or tooling, which can increase the overall price. The quantity or volume of round bars ordered can also impact the cost. Bulk orders typically benefit from economies of scale, leading to reduced unit costs. Additionally, longer-term contracts or partnerships with suppliers can result in better pricing agreements. It is important to consider transportation and logistics expenses as well. The cost of shipping steel round bars can vary based on factors such as distance, mode of transportation, and handling requirements. International shipping, for example, may involve additional customs duties and taxes. Lastly, market conditions and fluctuations in the steel industry can have an impact on the cost of round bars. Factors like supply and demand, raw material costs, and currency exchange rates can all influence the final price. It is crucial to stay updated with market trends and work closely with suppliers to negotiate favorable pricing. To ensure that the cost of steel round bars aligns with your budget and meets your specific requirements, it is essential to conduct thorough research, compare quotes from multiple suppliers, and evaluate the quality-to-price ratio before making a decision.

Q:Are steel round bars used in the automotive industry?: Yes, steel round bars are commonly used in the automotive industry. They are utilized in various applications such as the manufacturing of engine components, suspension systems, chassis, and axles. Steel round bars offer superior strength, durability, and versatility, making them an ideal choice for automotive parts that require high performance and reliability. Additionally, steel's ability to withstand heavy loads and resist deformation makes it suitable for use in critical automotive applications where safety is paramount.

Q:What are the different safety considerations when working with steel round bars?: When working with steel round bars, there are several safety considerations that need to be taken into account. First and foremost, it is important to wear appropriate personal protective equipment (PPE) such as safety glasses, gloves, and steel-toed boots to protect against potential hazards. One of the main safety concerns when handling steel round bars is the risk of injury from sharp edges or burrs. These can cause cuts or puncture wounds if not handled with care. It is crucial to inspect the round bars for any sharp edges or burrs and file them down or use protective coverings if necessary. Another important consideration is the weight of the steel round bars. Depending on their size and length, they can be quite heavy and may require the use of lifting equipment or assistance from another person to prevent strain or back injuries. It is essential to use proper lifting techniques and avoid overexertion when moving or transporting the bars. Fire safety is also a concern when working with steel round bars. Steel can conduct heat and electricity, so it is important to take precautions to prevent sparks or heat sources from igniting flammable materials in the vicinity. Fire extinguishers should be readily available, and the work area should be well-ventilated to minimize the risk of fire or smoke inhalation. Additionally, when cutting or manipulating steel round bars, there is a potential for flying debris or metal chips. Safety goggles or a face shield should be worn to protect the eyes from these hazards. It is also important to use appropriate cutting tools and techniques to prevent accidents or injuries. Finally, it is crucial to have proper training and knowledge of the equipment and machinery used when working with steel round bars. This includes understanding the correct procedures for cutting, bending, or welding the bars, as well as being aware of any specific safety precautions related to the machinery being used. Overall, safety should always be a top priority when working with steel round bars. By following these considerations and taking the necessary precautions, the risk of accidents or injuries can be minimized, ensuring a safe working environment.

Q:What are the advantages of using nickel-chromium-molybdenum alloy steel round bars?: There are several advantages of using nickel-chromium-molybdenum alloy steel round bars: 1. High strength and durability: Nickel-chromium-molybdenum alloy steel round bars have excellent mechanical properties, including high tensile strength and hardness. This makes them ideal for applications that require a strong and durable material. 2. Corrosion resistance: The addition of nickel and chromium in the alloy steel composition enhances its resistance to corrosion, making it suitable for use in environments where exposure to harsh chemicals or moisture is a concern. This corrosion resistance extends the lifespan of the round bars and reduces the need for frequent replacements. 3. Heat resistance: Nickel-chromium-molybdenum alloy steel round bars can withstand high temperatures without losing their structural integrity. This makes them suitable for applications that involve exposure to extreme heat, such as in the manufacturing of boilers, heat exchangers, and other heat-resistant equipment. 4. Versatility: The nickel-chromium-molybdenum alloy steel round bars can be easily machined and fabricated, allowing for various shapes and sizes to be produced. This versatility makes them suitable for a wide range of applications in industries such as aerospace, automotive, oil and gas, and construction. 5. Fatigue resistance: The alloy composition of nickel-chromium-molybdenum steel enhances its fatigue resistance, making it suitable for applications subjected to cyclic loading or repeated stress. This property ensures that the round bars can withstand prolonged use without experiencing fatigue failure. 6. Weldability: Nickel-chromium-molybdenum alloy steel round bars have good weldability, allowing for easy joining or fabrication processes. This makes them suitable for applications that require welding or other forms of joining, providing flexibility in design and construction. Overall, the advantages of using nickel-chromium-molybdenum alloy steel round bars make them a preferred choice in various industries where strength, durability, corrosion resistance, heat resistance, versatility, fatigue resistance, and weldability are crucial factors for success.

Q:Can steel round bars be used in the manufacturing of garden tools?: Yes, steel round bars can definitely be used in the manufacturing of garden tools. Steel is a versatile and durable material that is commonly used in the production of various tools, including garden tools. Steel round bars can be shaped and formed into different types of garden tools such as shovels, rakes, hoes, and pruning shears. The strength and resistance of steel make it suitable for withstanding the rigors of outdoor use, including digging, cutting, and scraping. Additionally, steel can be easily sharpened and maintained, ensuring that the garden tools remain efficient and long-lasting.

Q:Q235 and mechanical properties of hot rolled steel cold drawn steel have what difference, Q235 hot rolled steel with 12 combined shearing machine has a number of very hard, the damage of the blades, why: Secondly, have a great relationship with the mechanical properties of heat treatment of steel, quenching hardness increased, annealing hardness decreases, the same kind of material of steel under different heat treatment, the hardness difference is very big, you said the hot bar is excellent, there may have been a quenching in the production process

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