Alloy Steel AISI 4340 Materials 1.6582 System 1

Alloy Steel AISI 4340 Materials 1.6582 System 2

Alloy Steel AISI 4340 Materials 1.6582 System 3

Alloy Steel AISI 4340 Materials 1.6582 System 4

Alloy Steel AISI 4340 Materials 1.6582

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

GB	ASTM	JIS	ISO
40CrNiMoA	4340	SNCM439	36CrNiMo4

Standard	Grade	C	Cr	Ni	Mo	Si	Mn	P	S	Cu
≤
GB	5CrNiMo	0.37-0.44	0.60-0.90	1.25-1.35	0.15-0.25	0.17-0.37	0.50-0.80	0.025	0.025	0.30
JIS	SNCM439	0.36-0.43	0.60-1.00	1.60-2.00	0.15-0.30	0.15-0.35	0.60-0.90	0.030	0.020	0.30
ASTM	4340	0.38-0.43	0.70-0.90	1.65-2.00	0.20-0.30	0.15-0.35	0.65-0.85	0.025	0.025	—
ISO	38CrNiMo4	0.32-0.40	0.90-1.20	0.90-1.20	0.15-0.30	0.10-0.40	0.50-0.80	0.035	0.035	—

Tensile strength	Yield strength	Elongation rate	Contractibility rate	Impact Energy	Hardness(HBS100/3000)
≥980MPa	≥835MPa	≥12%	≥55%	≥78J	≤269

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 plated with other metals?: Steel round bars can indeed be plated with other metals, a process known as plating. Plating involves applying a thin layer of one metal onto the surface of another metal. This is commonly done to enhance the appearance of the steel round bar or to provide it with additional properties like corrosion resistance or improved conductivity. To plate the steel round bar, it is immersed in a solution containing ions of the desired metal. These metal ions are then deposited onto the surface of the steel through the use of electrical currents or chemical reactions, resulting in a thin and even coating. Nickel, chrome, zinc, and copper are among the popular metals used for plating steel round bars. Plating is a versatile and cost-effective technique for enhancing the performance and aesthetics of steel round bars in various applications.

Q: Can steel round bars be used in the packaging industry?: Certainly! Steel round bars have a wide range of applications in the packaging industry. More specifically, they are commonly utilized to add structural support and enhance the strength of various packaging materials. These bars can function as reinforcement bars or support rods in packaging crates, pallets, and containers. Notably, steel round bars are renowned for their exceptional strength and durability, which makes them well-suited to withstand heavy loads and maintain the integrity of the packaging materials during transportation and storage. Furthermore, steel round bars can be easily customized and cut to the desired length, allowing for flexibility in packaging design and meeting specific requirements. In summary, incorporating steel round bars in the packaging industry greatly enhances the safety, stability, and safeguarding of packaged products.

Q: How do you calculate the cross-sectional area of a steel round bar?: To calculate the cross-sectional area of a steel round bar, you need to know its diameter or radius. The formula for calculating the cross-sectional area of a circle is A = πr^2, where A is the area and r is the radius of the circle. If you have the diameter of the round bar, you can divide it by 2 to get the radius. Once you have the radius, you can substitute it into the formula to calculate the cross-sectional area. Keep in mind that the value of π is approximately 3.14159.

Q: What are the different types of steel round bar surface finishes for corrosion resistance?: There are several different types of steel round bar surface finishes that are commonly used for corrosion resistance. These finishes provide a protective coating on the surface of the bar, preventing contact with corrosive elements and reducing the risk of rusting or degradation over time. One of the most popular finishes for corrosion resistance is hot-dip galvanizing. This involves immersing the steel round bar in a bath of molten zinc, which forms a layer of zinc coating on the surface. The zinc acts as a sacrificial anode, corroding before the steel does, and providing long-lasting protection against rust and corrosion. Another common surface finish for corrosion resistance is stainless steel. This type of steel contains a minimum of 10.5% chromium, which forms a passive oxide layer on the surface when exposed to oxygen. This layer acts as a barrier, preventing further oxidation and corrosion, making stainless steel round bars highly resistant to rust and other forms of corrosion. Electroplating is another method used to provide corrosion resistance to steel round bars. This process involves immersing the bar in an electrolyte solution and passing an electric current through it. This causes a layer of metal, such as zinc or nickel, to be deposited onto the surface of the bar, providing a protective coating. Powder coating is a popular choice for steel round bars that require both corrosion resistance and aesthetic appeal. This process involves applying a dry powder coating to the surface of the bar and then curing it under heat. The powder melts and forms a hard, durable finish that provides excellent corrosion resistance while also offering a wide range of color options. Additionally, there are specialized coatings available for specific applications, such as epoxy coatings or polymer coatings. These coatings are designed to provide superior resistance to certain corrosive environments, such as exposure to chemicals or high humidity. In summary, the different types of steel round bar surface finishes for corrosion resistance include hot-dip galvanizing, stainless steel, electroplating, powder coating, and specialized coatings. Each of these finishes offers varying levels of protection against rust and corrosion, and the choice of finish depends on factors such as the specific application, environmental conditions, and desired aesthetics.

Q: Can steel round bars be used in the manufacturing of couplings?: The manufacturing of couplings can indeed make use of steel round bars. Steel round bars find widespread usage in a variety of industrial applications owing to their strength, durability, and versatility. When it comes to couplings, these are mechanical devices employed for connecting two shafts, either for power transmission or to accommodate the misalignment of the shafts. There exist diverse types of couplings, such as rigid couplings, flexible couplings, or universal couplings, each of which can be fabricated by machining, forming, or welding steel round bars. By utilizing steel round bars in the production process, the resulting couplings possess exceptional tensile strength, enabling them to endure heavy loads and torque. Moreover, steel round bars can be subjected to heat treatment, thereby augmenting their mechanical properties and rendering them suitable for an array of operating conditions and environments. Consequently, steel round bars hold considerable popularity as a preferred choice for the manufacturing of couplings.

Q: Are steel round bars suitable for automotive applications?: Yes, steel round bars are suitable for automotive applications. Steel round bars are commonly used in the manufacturing of various automotive components due to their high strength, durability, and resistance to corrosion. They are used in applications such as axles, crankshafts, drive shafts, steering components, suspension systems, and chassis construction. Steel round bars provide the necessary strength and rigidity required to handle the demanding conditions of automotive use, including heavy loads, vibrations, and impact forces. Additionally, steel round bars can be easily machined, welded, and forged, making them versatile and adaptable to different automotive designs and requirements. Overall, steel round bars are a reliable and cost-effective choice for automotive applications.

Q: Can steel round bars be used for making fuel system components?: Yes, steel round bars can be used for making fuel system components. Steel is a common material used in the manufacturing of various fuel system components due to its strength, durability, and resistance to corrosion. Steel round bars can be machined, welded, and formed into different shapes and sizes, making them suitable for a wide range of fuel system applications. Additionally, steel's high melting point and ability to withstand high pressure and temperature conditions make it a reliable choice for fuel system components that are exposed to extreme conditions.

Q: How do steel round bars compare to plastic or composite bars?: Plastic or composite bars cannot match the advantages of steel round bars. Firstly, steel round bars surpass plastic or composite bars in terms of strength and sturdiness. They excel in enduring heavy loads and providing outstanding structural support. Therefore, they are ideal for construction or engineering projects demanding robustness and durability. Secondly, steel round bars exhibit remarkable resistance to impact and wear. They can withstand severe environmental conditions and are less prone to cracking, chipping, or breaking compared to plastic or composite bars. Consequently, steel round bars suit heavy-duty applications where abrasion resistance is crucial. Moreover, steel round bars boast superior heat resistance in comparison to plastic or composite bars. They can endure high temperatures without distorting or compromising their structural integrity. Hence, steel round bars are suitable for applications involving extreme heat, such as machinery or equipment manufacturing. Furthermore, steel round bars are highly versatile and can be easily machined or modified to meet specific requirements. They allow for effortless customization and adaptability through cutting, drilling, bending, or welding. Conversely, plastic or composite bars may have limitations regarding customization or modification. Nonetheless, it is important to consider that steel round bars also have drawbacks when compared to plastic or composite bars. Steel is heavier, which can pose challenges in handling and transportation. Additionally, depending on the specific grade and quality, steel round bars can be more expensive than their plastic or composite counterparts. In conclusion, steel round bars surpass plastic or composite bars in terms of strength, durability, impact resistance, and heat resistance. Although they may have some drawbacks such as weight and cost, their overall performance and versatility make them the preferred choice for numerous high-performance applications.

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: Can steel round bars be used in high temperature applications?: Steel round bars can indeed be used in high temperature applications. However, the specific type of steel and its composition will determine its suitability for such conditions. Certain grades of steel, such as stainless steel or heat-resistant alloys, are specifically designed to withstand high temperatures without losing their strength or undergoing deformation. These steel round bars are often used in applications such as furnace components, boiler tubes, and heat exchangers, where they are subjected to extreme heat. It is crucial to select the appropriate steel grade based on the specific temperature requirements and conditions of the application to ensure optimal performance and longevity.

Send your message to us

*Email

*TEL

*Quantity

*Unit