Carbon Steel Bar 1020 S20C C22

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 120000 m.t./month

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Chemical Composition	Mechanical Properties (In Quenched & Tempered State)
C	0.17-0.23 %	Tensile strength(MPA)	≥253
Si	0.17-0.37 %	Yield strength (MPA)	≥245
Mn	0.35-0.65 %	Elongation (δ5/%)	≥25
Cr	≤0.25 %	Reduction in Area (ψ/%)	≥45
Ni	≤0.30 %	Impact (J)	≥ 47
P	≤0.035 %	Impact toughness value αkv (J/cm2)	≥59(6)
S	≤0.035 %	Hardness	≤156HB
Cu	≤0.25 %

Product Name	Typical Grades	Diameter(mm)	Standard adopted
Carbon Steel	20 (1020/S20C/C22)	Ø16-Ø300	GB/SAE/JIS/DIN
40 (1040/S40C/C40)
45 (1045/S45C/C45)
Bearing Steel	GCr9 (51100/SUJ1)	Ø12-Ø250
GCr15 (52100/SUJ2/100Gr6)
GCr9SiMn (A485-Gr.1/SUJ3)
Cr-Mo Steel	20Cr (5120/SCr420H/20Cr4)	Ø12-Ø250
40Cr (5140/SCr440/41Cr4)
42CrMo(4140/SCM440/42CrMo4)
Gear Steel	20CrNiMo	Ø16-Ø600
20CrMn(5115/SMnC420/20MnCr5)
20CrNiMo(8620/SNCM220/20CrMiMo2)

Company Information

CNBM International Corporation is the most important trading platform of CNBM group.

Whith its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high qulity series of refractories as well as technical consultancies and logistics solutions.

FAQ

1, Your advantages?

professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale

2, Test & Certificate?

SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem

3, Factory or Trading Company?

CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.

4, Payment Terms?

30% TT as deposit and 70% before delivery.

Irrevocable L/C at sight.

5, Trading Terms?

EXW, FOB, CIF, FFR, CNF

6, After-sale Service?

CNBM provides the services and support you need for every step of our cooperation. We're the business partner you can trust.

For any problem, please kindly contact us at any your convenient time.

We'll reply you in our first priority within 24 hours.

Packaging & Delivery

1, Packaging: seaworthy package or as required

2, Delivery: 35-45 days or based on quantity

Q:What are the advantages of using phosphorus-alloy steel round bars?: There are several advantages of using phosphorus-alloy steel round bars: 1. Increased strength: Phosphorus-alloy steel round bars have a higher tensile strength compared to standard steel bars. This increased strength makes them suitable for applications that require greater load-bearing capacity, such as construction and automotive industries. 2. Enhanced corrosion resistance: Phosphorus-alloy steel has a higher resistance to corrosion compared to regular steel. This makes it more durable and long-lasting, especially in environments with high moisture or exposure to chemicals. 3. Improved machinability: Phosphorus-alloy steel has excellent machinability, which means it can be easily shaped, cut, and formed into various designs or structures. This characteristic makes it a preferred choice for industries that require precise shaping, such as manufacturing and engineering. 4. Reduced brittleness: Phosphorus-alloy steel has a lower brittleness factor compared to other types of steel. This means it is less likely to break or fracture under sudden impact or stress, making it a safer option for applications where structural integrity is crucial. 5. Cost-effective: Despite its enhanced properties, phosphorus-alloy steel round bars are still cost-effective compared to other specialty alloys. This makes them a more affordable choice for industries that require high-performance materials without breaking the budget. 6. Improved weldability: Phosphorus-alloy steel round bars have excellent weldability, allowing for easy and secure welding connections. This characteristic makes them suitable for applications that require strong and reliable welded joints, such as construction or fabrication projects. In summary, phosphorus-alloy steel round bars offer increased strength, enhanced corrosion resistance, improved machinability, reduced brittleness, cost-effectiveness, and improved weldability. These advantages make them a preferred choice for various industries where high-performance materials are required.

Q:Are steel round bars suitable for the production of axles?: Yes, steel round bars are suitable for the production of axles. Steel round bars are known for their high strength and durability, making them ideal for the heavy-duty requirements of axles. They can withstand the forces and stresses applied during operation, ensuring the axles can efficiently support and transmit the load. The round shape of the bars also allows for easy machining and forming into axles of various sizes and configurations.

Q:What kind of steel bars are used in general civil buildings?: In the general construction of commonly used hot rolled round bar (commonly known as round steel), hot rolled ribbed steel bars (commonly known as steel), the two most widely used steel. Identified as HPB235, the diameter of 6.5, 8, 10, 12, and then rough is not commonly used, and in the 6.5 and 8 most as commonly used, used as column, main reinforcement and stirrups and plate reinforced beam distribution.

Q:Are steel round bars suitable for the production of springs?: Indeed, springs can be produced using steel round bars. Steel, renowned for its exceptional strength and durability, finds widespread application in spring manufacturing. The circular configuration of these bars facilitates effortless shaping and molding, rendering them an ideal choice for spring production procedures. Steel round bars can be conveniently machined and heat-treated to impart the desired spring attributes, including elasticity and resilience. Furthermore, steel boasts a remarkable tensile strength, enabling it to endure substantial loads. Consequently, it proves well-suited for applications necessitating robust and dependable springs.

Q:How many tons of pressure can the round steel of 70 inches bear?: As the diameter of about 11.5 cm diameter 180 cm long in the middle of the force which kind of force will be smaller if the curvature is hollow capability hollow wall thickness to achieve much greater strength than to solid

Q:Can steel round bars be used in the production of tools?: Yes, steel round bars can be used in the production of tools. Steel round bars are commonly used in tool manufacturing due to their high strength, durability, and versatility. They can be shaped, machined, and heat-treated to create various types of tools such as drills, punches, chisels, and hammers. The use of steel round bars ensures that the tools have the necessary hardness and toughness required for their specific applications.

Q:What are the factors to consider when selecting a steel round bar?: There are several factors to take into account when choosing a steel round bar. Firstly, it is crucial to evaluate the grade of steel. Each grade has different properties and strengths, so it is important to consider the specific application and requirements. For instance, if high corrosion resistance is needed, stainless steel grades such as 304 or 316 may be appropriate, while carbon steel grades like A36 or 1018 may be more suitable for structural purposes. Secondly, the dimensions and size of the round bar should be considered. This includes the diameter, length, and tolerance requirements. The size should be chosen based on the specific application, load-bearing capacity, and available installation space. Thirdly, the condition and surface finish of the round bar should be assessed. This includes factors like surface roughness, straightness, and any surface defects. The surface finish should be selected based on the desired aesthetics, functional requirements, and manufacturing process. Another important aspect is the availability and cost of the steel round bar. It is crucial to consider the availability of the desired grade and size from suppliers, as well as the associated cost. Comparing prices from different suppliers is advisable to ensure the best value for money. Furthermore, it is necessary to evaluate the required mechanical properties of the steel round bar. This includes factors like tensile strength, yield strength, hardness, and ductility. The mechanical properties should align with the intended application and load-bearing requirements. Lastly, any additional requirements or certifications should be considered. This could include compliance with specific industry standards (e.g., ASTM, ISO), certifications (e.g., RoHS, REACH), or specific testing requirements (e.g., ultrasonic testing, impact testing). In conclusion, selecting a steel round bar involves considering the grade, dimensions, surface finish, availability, cost, mechanical properties, and any additional requirements. Taking these factors into account will ensure that the chosen steel round bar is suitable for the intended application and meets all necessary specifications.

Q:Can steel round bars be used for making conveyor belts?: No, steel round bars are not typically used for making conveyor belts. Conveyor belts are usually made from materials such as rubber or fabric, which provide flexibility and durability necessary for conveying items efficiently.

Q:Can steel round bars be used in the automotive manufacturing?: Yes, steel round bars can be used in automotive manufacturing. Steel round bars offer high strength and durability, making them suitable for various automotive components such as crankshafts, camshafts, axles, and suspension parts. They also provide excellent machinability and can be easily fabricated into the required shapes and sizes, making them a preferred choice in the automotive industry.

Q:What are the different types of steel round bar surface treatments used in the aerospace industry?: In the aerospace industry, there are several types of steel round bar surface treatments that are commonly used to enhance the performance and durability of the materials. These treatments are specifically designed to meet the stringent requirements and standards set by the industry. Some of the different types of steel round bar surface treatments used in the aerospace industry include: 1. Passivation: This treatment involves the removal of iron particles and other contaminants from the surface of the steel round bar. It helps to prevent corrosion and improves the overall corrosion resistance properties of the material. 2. Shot Peening: Shot peening is a process that involves bombarding the surface of the steel round bar with small metallic shots. This treatment induces compressive stress on the surface, which enhances the material's fatigue strength and resistance to stress corrosion cracking. 3. Electroplating: Electroplating is a common surface treatment used in the aerospace industry. It involves the deposition of a layer of metallic coating onto the steel round bar through an electrochemical process. This treatment enhances the material's corrosion resistance, wear resistance, and aesthetic appearance. 4. Anodizing: Anodizing is an electrolytic passivation process that is commonly used on aluminum alloys. However, it can also be used on steel round bars. This treatment forms a thick, durable, and corrosion-resistant layer of oxide on the surface, which improves the material's resistance to wear, corrosion, and scratching. 5. Nitriding: Nitriding is a surface hardening treatment that involves the diffusion of nitrogen into the surface of the steel round bar. This treatment improves the material's surface hardness, wear resistance, and fatigue strength. 6. Chemical Conversion Coating: Chemical conversion coating is a treatment that involves the formation of a thin, protective layer on the surface of the steel round bar. This coating enhances the material's corrosion resistance and provides a good base for subsequent paint or coating applications. These are just a few examples of the different types of steel round bar surface treatments used in the aerospace industry. Each treatment offers unique benefits and is selected based on the specific requirements of the application, such as corrosion resistance, wear resistance, fatigue strength, and aesthetic appearance.

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