Hot Rolled Round Steel Bars C45 System 1

Hot Rolled Round Steel Bars C45 System 2

Hot Rolled Round Steel Bars C45 System 3

Hot Rolled Round Steel Bars C45 System 4

Hot Rolled Round Steel Bars C45

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

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C	Si	Mn	P	S	Cr	Ni	Cu	Al
0.4~0.5	0.2~0.3	0.6~0.7	≤0.016	≤0.008	≤0.023	≤0.014	0.018	≤0.005

GB	DIN	JIS	AISI
45#	1.1191	S45C	1045

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)

Carbon Steel	Mold bottom, Plastic mold, Construction machinery parts Automobile parts, Security grills, Screens, Construction
Bearing Steel	Aerospace, Navigation, Nuclear energy, Chemical industry Electronic information, Petrochemical, Instrument and meter Transportation
Cr-Mo Steel	Mechanism & Fasteners gear, Stressed components for vehicles Engines and machines, Parts of larger cross-section
Gear Steel	All kinds of gears, Statically and dynamically stressed component for vehicles Engines and machine, Larger cross-section parts, Crankshafts

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: Can steel round bars be painted?: Yes, steel round bars can be painted. Painting steel round bars can help protect them from corrosion and enhance their appearance. However, before painting, the surface of the steel round bars should be properly prepared by cleaning, degreasing, and removing any rust or mill scale. This can be done using methods such as sandblasting, wire brushing, or chemical cleaning. Once the surface is adequately prepared, a primer specifically designed for steel should be applied to promote better adhesion of the paint. Finally, the desired paint can be applied to the steel round bars using brushes, rollers, or spray equipment. It is important to choose a paint that is suitable for outdoor use and provides sufficient protection against harsh weather conditions. Regular maintenance and periodic repainting may be required to ensure the longevity and durability of the painted steel round bars.

Q: What is the difference between a rough turned and a centerless ground steel round bar?: A rough turned steel round bar refers to a steel bar that has been machined to a standard size and shape, typically using a lathe or turning machine. The process involves removing excess material from the bar's surface to achieve the desired diameter and smoothness. The resulting rough turned bar may still have slight imperfections or variations in size and surface finish. On the other hand, a centerless ground steel round bar undergoes a different manufacturing process. Centerless grinding involves feeding the steel bar through two rotating wheels: a grinding wheel and a regulating wheel. The grinding wheel removes material from the bar's surface to achieve a precise diameter, while the regulating wheel controls the bar's feed rate. This process ensures tight tolerances, excellent surface finish, and a uniform diameter along the entire length of the bar. In summary, the main difference between a rough turned and a centerless ground steel round bar lies in the manufacturing process and the resulting quality. While a rough turned bar is machined to a standard size and shape with some imperfections, a centerless ground bar undergoes a more precise grinding process to achieve a highly accurate diameter, excellent surface finish, and consistent dimensions throughout the bar.

Q: How do steel round bars compare to rubber round bars?: Steel round bars and rubber round bars are distinct materials with contrasting properties and applications. Steel round bars, which are crafted from hardened carbon steel, are renowned for their robustness and resilience. With their high tensile strength, they can endure substantial loads and stress without distorting or fracturing. Construction, engineering, and manufacturing industries frequently employ steel round bars for structural support, reinforcement, and diverse mechanical purposes. Additionally, their exceptional resistance to heat and corrosion makes them suitable for extreme conditions. In contrast, rubber round bars, composed of synthetic or natural rubber compounds, possess exceptional advantages such as flexibility, elasticity, and vibration absorption properties. These attributes make them ideal for applications necessitating shock absorption, noise reduction, or effective sealing. Automotive industries, machinery mounts, conveyor systems, and various other industrial fields extensively employ rubber round bars to leverage their distinctive properties. While steel round bars excel in strength and rigidity, rubber round bars offer impressive flexibility and vibration dampening capabilities. The choice between steel and rubber round bars primarily hinges on the specific requisites of the application. When high strength and durability are necessary, steel round bars emerge as the optimal selection. Conversely, if flexibility, elasticity, or vibration absorption are prerequisites, rubber round bars prove more suitable. To summarize, steel round bars and rubber round bars exhibit contrasting properties and applications. Steel round bars grant strength and durability, whereas rubber round bars provide flexibility and vibration absorption properties. Opting for one over the other relies on the specific requirements of the application.

Q: What are the advantages of using heat-resistant steel round bars?: The advantages of using heat-resistant steel round bars include high thermal stability, excellent resistance to oxidation and corrosion at elevated temperatures, superior strength and toughness, and the ability to retain their mechanical properties even under extreme heat conditions. Heat-resistant steel round bars also have good dimensional stability, making them suitable for applications in high-temperature environments such as furnace components, heat exchangers, and power generation equipment.

Q: Are steel round bars used in the manufacturing of machinery?: Steel round bars are widely used in machinery manufacturing. They are a flexible and long-lasting material that can be applied in different ways, including the creation of machinery components. The circular form enables easy machining and fabrication, making it suitable for producing vital parts such as shafts, axles, gears, and more. The robustness and resilience of steel make it perfect for enduring heavy loads and impact, guaranteeing the dependability and durability of the machinery. Moreover, steel round bars can be personalized and adjusted to meet specific design needs, enabling manufacturers to develop machinery that is efficient, precise, and capable of delivering optimal performance.

Q: Can steel round bars be used in the pharmaceutical industry?: No, steel round bars are not typically used in the pharmaceutical industry as they are not suitable for direct contact with pharmaceutical products due to potential contamination risks.

Q: Can steel round bars be used in the manufacturing of bicycles?: Indeed, bicycles can be manufactured using steel round bars. These bars are commonly utilized in multiple aspects of bicycle construction, including the frame, handlebars, cranksets, and seatposts. Steel, being a robust and enduring material, can withstand the strains and pressures associated with cycling. Moreover, it is comparatively affordable when compared to alternatives like carbon fiber. By employing steel round bars, the necessary strength and stability required for a bicycle's structural components are guaranteed, thereby ensuring a secure and dependable ride. Furthermore, steel can be easily manipulated and shaped to conform to the specific design prerequisites of a bicycle, making it a versatile material for manufacturing purposes. All in all, the bicycle industry frequently favors steel round bars due to their resilience, sturdiness, and cost-effectiveness.

Q: Three - grade thread Phi 10 steel can replace a grade Phi 12 round bar? Which elder knows, trouble pointing.: According to the substitution of steel bars, one method, equal strength substitution, equal area substitution and equal root substitution can be obtained by substitution. Three grades of thread Phi 10, steel replaced by a grade Phi 12 of the round steel, I think it may appear: does not meet the minimum reinforcement ratio requirements and reinforcement construction regulations. Don't change it for the best. But must change, must pass the design.

Q: What is the tensile strength of steel round bars?: The tensile strength of steel round bars can vary depending on the specific grade or type of steel being used. However, on average, steel round bars have a tensile strength ranging from 400 to 500 megapascals (MPa). This means that steel round bars can withstand a pulling or stretching force of 400 to 500 MPa before experiencing permanent deformation or fracture. It is important to note that different grades of steel, such as mild steel, carbon steel, or alloy steel, may have different tensile strength values. Additionally, factors such as heat treatment, manufacturing process, and size of the round bar can also affect its tensile strength. Therefore, it is recommended to consult the specific manufacturer or supplier for accurate and precise information on the tensile strength of a particular steel round bar.

Q: Are steel round bars suitable for use in the construction of bridges?: Yes, steel round bars are suitable for use in the construction of bridges. Steel round bars offer high tensile strength, durability, and flexibility, making them ideal for withstanding heavy loads and structural demands. They also provide excellent resistance to corrosion, ensuring longevity and structural integrity. Additionally, steel round bars can be easily fabricated and installed, making them a cost-effective choice for bridge construction projects.

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