• Round Bar Q235 5MM-100MM Hot Rolled High Quality Q195 System 1
  • Round Bar Q235 5MM-100MM Hot Rolled High Quality Q195 System 2
  • Round Bar Q235 5MM-100MM Hot Rolled High Quality Q195 System 3
  • Round Bar Q235 5MM-100MM Hot Rolled High Quality Q195 System 4
Round Bar Q235 5MM-100MM Hot Rolled High Quality Q195

Round Bar Q235 5MM-100MM Hot Rolled High Quality Q195

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Product Description:

OKorder is offering Round Bar Q235 5MM-100MM Hot Rolled High Quality Q195 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 Q235 5MM-100MM Hot Rolled High Quality Q195 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 we guarantee the quality of our products?

A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.

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 Q235 5MM-100MM Hot Rolled High Quality Q195

Round Bar Q235 5MM-100MM Hot Rolled High Quality Q195

Q:How do you calculate the length of a steel round bar?
To calculate the length of a steel round bar, you need to measure its diameter and then use a simple formula involving the diameter and the mathematical constant pi (π). First, use a caliper or a measuring tape to measure the diameter of the steel round bar at its widest point. Make sure to measure across the center of the bar for an accurate result. Once you have the diameter, you can calculate the circumference of the round bar by multiplying the diameter by pi (π). The formula to calculate the circumference is: Circumference = π × Diameter Finally, to determine the length of the round bar, you either need to know the number of complete rotations it makes or measure the distance covered by it. If you know the number of rotations, multiply the circumference by the number of rotations. If you are measuring the distance covered, simply use the measured distance as the length of the round bar.
Q:What are the different surface defects that can be found in steel round bars?
Some common surface defects that can be found in steel round bars include scratches, pits, cracks, scale, and decarburization.
Q:How do you store and handle steel round bars?
There are several important considerations when it comes to the storage and handling of steel round bars. Firstly, it is crucial to have a clean and dry storage area that is free from moisture and corrosive materials. This will help prevent damage to the bars, such as rust. To prevent deformation or sagging, the steel round bars should be stored horizontally on racks or a flat surface. It is advisable to stack them in a manner that avoids putting excessive pressure on any individual bar, as this can cause bending or warping. For safe handling, it is recommended to use appropriate lifting equipment like cranes, forklifts, or hoists. Manual handling should be minimized, as steel bars can be heavy and difficult to maneuver. When using lifting equipment, it is important to secure and balance the bars properly to prevent accidents or injuries. Furthermore, it is essential to use protective measures such as gloves and safety shoes when handling steel round bars, as they may have sharp edges or rough surfaces. Wearing proper personal protective equipment (PPE) is necessary to minimize the risk of cuts, abrasions, or other injuries. Regular inspections should be carried out to check for any signs of damage, such as dents, cracks, or corrosion. Damaged bars should be separated and either repaired or discarded, depending on the severity of the damage. By adhering to these storage and handling guidelines, you can ensure the durability and quality of steel round bars, while also creating a safe working environment for yourself and others.
Q:What are the different specifications for steel round bars?
The different specifications for steel round bars typically include the diameter, length, and grade of the steel. Other specifications may include the tolerance levels for diameter and length, as well as any specific requirements for surface finish or heat treatment.
Q:4145H round steel is equivalent to the domestic brand?
4145H rounds are used in oil drilling tools and are often replaced by 42CrMo in the industry.
Q:What are the common sizes of steel round bars?
The common sizes of steel round bars vary, but some frequently used diameters range from 1/4 inch to 12 inches.
Q:What are the advantages of using tin-alloy steel round bars?
There are several advantages to using tin-alloy steel round bars: 1. Enhanced corrosion resistance: Tin-alloy steel round bars have excellent corrosion resistance properties due to the presence of tin. This makes them suitable for various applications in industries such as marine, automotive, and construction, where exposure to moisture, chemicals, or harsh environments is common. 2. Improved machinability: Tin-alloy steel round bars are known for their superior machinability. The addition of tin to the steel composition enhances its ability to be cut, drilled, and shaped more easily, reducing tool wear and increasing productivity during machining processes. 3. Increased strength and durability: The alloying of tin with steel enhances its strength and durability. Tin-alloy steel round bars have higher tensile strength and hardness compared to regular steel bars, making them more resistant to wear, deformation, and fatigue. This makes them suitable for heavy-duty applications and ensures longevity. 4. Excellent thermal conductivity: Tin-alloy steel round bars exhibit excellent thermal conductivity properties. This makes them ideal for applications that require efficient heat transfer, such as heat exchangers, radiators, and engine components. 5. Lower friction coefficient: Tin-alloy steel round bars have a lower friction coefficient compared to regular steel bars. This feature makes them suitable for applications where minimizing friction is crucial, such as in bearings, shafts, and gears, resulting in reduced energy consumption and increased operational efficiency. 6. Cost-effective alternative: Tin-alloy steel round bars offer a cost-effective alternative to more expensive materials such as stainless steel or brass. They provide similar performance characteristics at a lower price point, making them a viable choice for various applications without compromising on quality. In summary, the advantages of using tin-alloy steel round bars include enhanced corrosion resistance, improved machinability, increased strength and durability, excellent thermal conductivity, lower friction coefficient, and cost-effectiveness. These properties make them a versatile and reliable choice for a wide range of applications across different industries.
Q:Can steel round bars be used in marine environments?
Steel round bars can indeed be utilized in marine settings. Nonetheless, it is crucial to select the appropriate steel variant that is specifically engineered for marine purposes. Among the various options, stainless steel stands out as the most frequently utilized due to its ability to resist corrosion. This is primarily due to its high chromium content, which facilitates the formation of a protective oxide layer on the steel's surface, thereby safeguarding it against corrosion caused by saltwater and other harsh elements. Moreover, stainless steel round bars are renowned for their robustness and durability, making them well-suited for an array of marine applications such as ship construction, offshore structures, and marine equipment. To ensure the enduring performance of steel round bars in marine environments, regular maintenance and proper care are imperative.
Q:How do steel round bars compare to fiberglass or composite bars?
Steel round bars are generally stronger and more durable than fiberglass or composite bars. They have a higher tensile strength, making them suitable for heavy-duty applications and environments that require resistance to extreme conditions. Fiberglass or composite bars, on the other hand, are lighter in weight and have better corrosion resistance, making them suitable for applications like construction and transportation, where weight reduction and resistance to chemicals or moisture are critical factors. Ultimately, the choice between steel round bars and fiberglass or composite bars depends on the specific requirements and limitations of the intended use.
Q:How are steel round bars used in the construction of railways?
The durability and strength of steel round bars make them a common choice for constructing railways. These bars are typically made of high-quality steel, which allows them to resist wear and tear caused by heavy loads and constant use. In the construction of railways, steel round bars are primarily used to reinforce the concrete sleepers or ties that support the tracks. They are often installed as reinforcement rods within these sleepers, providing extra strength and stability to enhance the overall structural integrity of the railway system. Steel round bars are also utilized in the construction of railway bridges and tunnels. They are used to reinforce the concrete structures, ensuring that they can withstand the weight of passing trains and other loads. Moreover, steel round bars are employed in the fabrication of various railway components, including rail fastenings, switch points, and signaling equipment. These bars are shaped and sized to meet the specific requirements of these components. The high strength and flexibility of steel round bars make them ideal for these applications, as they can withstand the forces and stresses exerted on the railway infrastructure. To summarize, steel round bars are crucial in the construction of railways as they provide reinforcement, strength, and stability to different components and structures. Their durability and reliability make them essential materials in ensuring the safety and longevity of railway systems.

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