20MnCr5 Alloy Steel Round Bars SAE 5152 System 1

20MnCr5 Alloy Steel Round Bars SAE 5152 System 2

20MnCr5 Alloy Steel Round Bars SAE 5152 System 3

20MnCr5 Alloy Steel Round Bars SAE 5152 System 4

20MnCr5 Alloy Steel Round Bars SAE 5152

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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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Chemical Composition	Mechanical Properties (In Quenched & Tempered State)
C	0.17-0.22 %	Tensile strength(MPA)	≥1482
Si	≤0.25 %	Yield strength (MPA)	≥1232
Mn	1.10-1.50 %	Elongation (δ5/%)	≥13
Cr	1.00-1.30 %	Reduction in Area (ψ/%)	≥57
Ni	≤0.30 %	Impact toughness value αkv (J/cm2)	≥73
P	≤0.035 %	Hardness	≤357HB
S	≤0.035 %

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: What are the different types of finishes available for steel round bars?: There are several different types of finishes available for steel round bars, each offering unique properties and appearances. 1. Mill Finish: This is the most basic and widely used finish for steel round bars. It is achieved by leaving the steel in its natural state after it has been rolled and cooled. Mill finish bars have a rough texture and may display surface imperfections. 2. Hot Rolled Finish: This finish is achieved by heating the steel to high temperatures and rolling it to form the desired shape. Hot rolled bars have a smooth surface and are typically used in applications where aesthetics are not a priority. 3. Cold Drawn Finish: Cold drawing is a process that involves pulling the steel through a die to reduce its diameter and increase its length. This finish results in a smooth surface with improved dimensional accuracy and tighter tolerances. 4. Polished Finish: Steel round bars can also be polished to achieve a smooth and reflective surface. Polishing is typically done using abrasive materials or compounds that remove surface imperfections and enhance the appearance of the steel. 5. Ground Finish: Ground finish involves removing a thin layer of material from the surface of the steel using abrasive grinding wheels. This process creates a smooth and even surface finish, suitable for applications that require tight tolerances and precise dimensions. 6. Coated Finish: Steel round bars can be coated with various materials to provide additional protection against corrosion or to enhance their appearance. Common coatings include galvanization, which applies a layer of zinc to the surface, and powder coating, which provides a durable and decorative finish. The choice of finish for a steel round bar depends on the specific application and desired properties. It is important to consider factors such as corrosion resistance, aesthetics, dimensional accuracy, and surface quality when selecting a finish.

Q: What are the advantages of using nickel-chromium-titanium alloy steel round bars?: There are several advantages of using nickel-chromium-titanium alloy steel round bars: 1. High Strength: Nickel-chromium-titanium alloy steel round bars are known for their exceptional strength and durability. They have a high tensile strength, making them suitable for applications requiring heavy-duty materials. 2. Corrosion Resistance: These alloy steel round bars have excellent corrosion resistance properties due to the presence of nickel and chromium. This makes them ideal for use in environments where exposure to moisture, chemicals, or harsh conditions is common. 3. Heat Resistance: Nickel-chromium-titanium alloy steel round bars can withstand high temperatures without losing their mechanical properties. They exhibit good heat resistance, making them suitable for applications in industries such as aerospace, power generation, and automotive. 4. Fatigue Resistance: The unique composition of nickel-chromium-titanium alloy steel round bars provides excellent fatigue resistance, allowing them to withstand repeated stress and load cycles without deformation or failure. This makes them suitable for applications in high-stress environments. 5. Machinability: Despite their high strength and toughness, nickel-chromium-titanium alloy steel round bars are relatively easy to machine. They can be easily cut, drilled, or shaped, allowing for efficient and precise manufacturing processes. 6. Versatility: These alloy steel round bars have a wide range of applications due to their versatile properties. They can be used in industries such as construction, automotive, aerospace, marine, and many more. Their high strength and corrosion resistance make them suitable for various structural and load-bearing applications. Overall, nickel-chromium-titanium alloy steel round bars offer a combination of high strength, corrosion resistance, heat resistance, fatigue resistance, machinability, and versatility, making them a preferred choice for many industrial applications.

Q: How do steel round bars compare to copper round bars?: Steel round bars and copper round bars have several key differences. Firstly, steel is a much stronger and more durable material compared to copper. Steel round bars can withstand higher levels of stress and are often used in heavy-duty applications requiring great strength, such as construction and engineering projects. On the other hand, copper round bars are softer and more malleable, making them ideal for electrical and plumbing applications. Additionally, steel round bars have better corrosion resistance than copper round bars. Steel can be coated or treated to prevent rust and corrosion, while copper is prone to oxidation and requires regular maintenance to prevent tarnishing. In terms of cost, steel round bars are generally less expensive than copper round bars. The availability and abundance of steel contribute to its lower price, while copper is a more scarce and costly material. Ultimately, the choice between steel and copper round bars depends on the specific application and requirements.

Q: Will the three steel is steel? It is a steel bar?: Your question is inaccurateThread steels are grade two, grade three, grade four, and even grade fiveFirst grade steel generally refers to the wire rod, also known as wire rod, is a ribbed steel bar

Q: What are the different grades of heat-treated steel round bars?: There exists a variety of heat-treated steel round bars with distinct properties and characteristics. Among the commonly used grades are: 1. 4140: Renowned for its high strength and toughness, this grade of heat-treated steel round bar possesses exceptional wear resistance and good machinability. It can undergo easy heat treatment to enhance its hardness and strength. 2. 4340: Heat-treated steel round bars belonging to this grade are recognized for their high tensile strength, toughness, and resistance to fatigue. They find extensive use in industries like aerospace and automotive, which demand superior strength and durability. 3. 8620: Characterized by its case hardening properties, this grade of heat-treated steel round bar exhibits good core strength, excellent toughness, and is frequently employed in applications requiring high wear resistance, such as gears, shafts, and pins. 4. 52100: Widely utilized in bearing applications, heat-treated steel round bars of this grade offer exceptional hardness, wear resistance, and high fatigue strength. They are specially designed to withstand heavy loads and provide long-lasting performance. 5. 1045: Recognized for its medium carbon content, this grade of heat-treated steel round bar provides good strength and impact resistance. It is commonly employed in applications that necessitate moderate strength and toughness, such as shafts, axles, and machinery parts. These examples represent only a fraction of the diverse grades of heat-treated steel round bars available in the market. The choice of grade depends on specific requirements like strength, hardness, toughness, and wear resistance. Seeking guidance from a knowledgeable professional is essential to determine the most suitable grade for one's particular needs.

Q: Can steel round bars be used for making decorative items?: Yes, steel round bars can be used for making decorative items. Steel round bars can be bent, shaped, and welded to create unique and decorative designs. The durability and strength of steel make it a suitable material for creating various decorative items such as sculptures, furniture, and architectural elements.

Q: Can steel round bars be used in the manufacturing of hydraulic components?: Indeed, the utilization of steel round bars is feasible for the production of hydraulic components. Owing to its robustness, endurance, and corrosion resistance, steel is widely employed in the fabrication of hydraulic components. By molding and machining steel round bars, an assortment of hydraulic components, including pistons, cylinders, valves, and fittings, can be manufactured. The adoption of steel round bars guarantees the capability of withstanding elevated pressures and maintaining optimal performance across diverse hydraulic systems.

Q: Can steel round bars be used for making architectural or decorative elements?: Yes, steel round bars can be used for making architectural or decorative elements. They are versatile and can be shaped, welded, and fabricated into various designs, giving them the potential to enhance the aesthetic appeal of architectural structures or serve as decorative elements.

Q: What is the maximum nitrogen content allowed for steel round bars?: The maximum nitrogen content allowed for steel round bars varies depending on the specific steel grade and application requirements. However, in general, the nitrogen content is typically limited to around 0.025-0.035% to maintain the desired mechanical properties and avoid detrimental effects on the material's performance.

Q: Can steel round bars be bent or formed into shapes?: Yes, steel round bars can be bent or formed into shapes. Steel is a highly versatile material with excellent strength and durability, making it suitable for various applications. To bend or form steel round bars, various techniques such as heating, hammering, or using specialized machinery like hydraulic presses or roll benders can be employed. These methods allow the steel bars to be shaped into curves, angles, or specific forms to meet the desired requirements. However, it is important to note that the extent to which a steel round bar can be bent or formed depends on factors such as the diameter, type of steel, and the specific bending/forming technique used.

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