30CrMo Alloy Steel Round Bars AISI 4130 System 1

30CrMo Alloy Steel Round Bars AISI 4130 System 2

30CrMo Alloy Steel Round Bars AISI 4130 System 3

30CrMo Alloy Steel Round Bars AISI 4130 System 4

30CrMo Alloy Steel Round Bars AISI 4130

Ref Price:

Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 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

ITEM	aisi 4130 alloy round bar
BRAND	TZHD
MATERIAL	200 SERIES & 300 SERIES & 400 SERIES
STANDARD	GB, AISI, ASTM, ASME, EN, BS, DIN, JIS
CERTIFICATE	BV,SGS,ISO
SURFACE	ordinary industrial surface, or customized
THICKNESS	customized
WIDTH	customized
LENGTH	2000-6000mm, or customized
APPLICATION	Construction and decoration, as well as all kinds of industries and manufacture
PACKING	Regular packing or as required
SHIPMENT	As required
LEAD TIME	3-20 days after deposit
PAYMENT	T/T, L/C

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: How do you determine the hardness of a steel round bar?: To determine the hardness of a steel round bar, various methods can be used. One common method is the Rockwell hardness test. This test involves applying a minor load to the surface of the bar using a diamond or a hardened steel ball, followed by a major load. The depth of penetration of the minor and major loads is measured, and a hardness value is determined based on the difference between the two depths. Another method is the Brinell hardness test, which involves indenting the surface of the steel bar using a hardened steel ball under a specified load. The diameter of the resulting indentation is measured, and the hardness value is calculated based on the load and the diameter of the indentation. Alternatively, the Vickers hardness test can also be used. This test involves applying a diamond pyramid-shaped indenter to the surface of the steel bar under a specific load. The size of the indentation is measured, and the hardness value is determined based on the load and the surface area of the indentation. It is important to note that the specific method used to determine the hardness of a steel round bar depends on factors such as the type of steel and the desired accuracy of the measurement. Additionally, other factors such as heat treatment and composition can also affect the hardness of the steel bar, so it is essential to consider these factors when determining hardness.

Q: Are steel round bars corrosion resistant?: Steel round bars are not inherently resistant to corrosion. This is because steel is mainly composed of iron, and iron tends to rust when it comes into contact with moisture and oxygen. Nevertheless, there are specific types of steel that have been engineered to resist corrosion. These types, including stainless steel, consist of added alloying elements such as chromium and nickel. These elements create a protective layer on the surface of the steel, which prevents rust and corrosion. Therefore, although standard steel round bars lack corrosion resistance, stainless steel round bars offer a corrosion-resistant alternative.

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: Can steel round bars be used in the manufacturing of power transmission components?: Yes, steel round bars can be used in the manufacturing of power transmission components. Steel round bars are known for their high strength, durability, and ability to withstand heavy loads, making them suitable for various applications in power transmission. These components include gears, shafts, couplings, and other parts that need to transmit power efficiently and reliably.

Q: What are the different types of steel round bars used in the agricultural sector?: In the agricultural sector, there are several types of steel round bars that are commonly used due to their strength, durability, and versatility. These bars play a crucial role in various agricultural applications. 1. Mild Steel Round Bars: Mild steel is one of the most widely used types of steel in the agricultural sector. It offers excellent strength and is relatively low in cost. Mild steel round bars are commonly used in the construction of agricultural equipment, such as plows, cultivators, and harrows. 2. Carbon Steel Round Bars: Carbon steel round bars are known for their high strength and toughness. They can withstand heavy loads and are ideal for applications that require superior durability. Carbon steel round bars are commonly used in the manufacturing of tractor parts, tillage tools, and other heavy-duty agricultural machinery. 3. Alloy Steel Round Bars: Alloy steel round bars are made by adding various alloying elements to steel, such as chromium, nickel, or molybdenum. These elements enhance the strength, hardness, and corrosion resistance of the steel. In the agricultural sector, alloy steel round bars are often used in the manufacturing of high-performance components, such as gears, axles, and shafts. 4. Stainless Steel Round Bars: Stainless steel round bars are highly resistant to corrosion and have excellent mechanical properties. They are commonly used in agricultural applications that require resistance to moisture, chemicals, and harsh environments. Stainless steel round bars are often utilized in the manufacturing of dairy equipment, storage tanks, and irrigation systems. 5. Tool Steel Round Bars: Tool steel round bars are specifically designed to withstand high temperatures, abrasion, and impact. They are used in agricultural applications that involve cutting, shaping, or drilling. Tool steel round bars are commonly used in the production of blades, cutting tools, and machinery parts for crop harvesting and processing. It is important to consider the specific requirements and conditions of each agricultural application when selecting the appropriate type of steel round bar. By choosing the right steel round bar, farmers and agricultural professionals can ensure the reliability and longevity of their equipment and machinery.

Q: Can steel round bars be used for making electrical components?: Whether steel round bars can be used for making certain electrical components depends on the specific requirements and applications. Steel is a versatile material that possesses good electrical conductivity and high durability, making it well-suited for a variety of electrical applications. However, when it comes to components that necessitate specific electrical properties or insulation, copper or aluminum may be more commonly utilized. Furthermore, in order to prevent corrosion or enhance electrical conductivity, it may be necessary to subject steel round bars to surface treatments or coatings. Ultimately, the appropriateness of utilizing steel round bars for manufacturing electrical components should be evaluated in accordance with the specific requirements and regulations of the intended application.

Q: What is the maximum diameter of a steel round bar?: The maximum diameter of a steel round bar can vary depending on the specific grade and type of steel being used. However, in general, the maximum diameter of a steel round bar typically ranges from 1 inch to 12 inches. Larger diameters may be available on a custom order basis. It is important to consult the manufacturer or supplier for specific information regarding the maximum diameter of a steel round bar for a particular grade and type of steel.

Q: How do you calculate the moment of inertia for a steel round bar?: To determine the moment of inertia for a steel round bar, one can utilize the equation for the moment of inertia of a solid cylinder. Denoted as I, the moment of inertia signifies an object's resistance to rotational changes. The equation for the moment of inertia of a solid cylinder is as follows: I = (1/2) * m * r^2 Where: - I represents the moment of inertia - m denotes the mass of the cylinder - r signifies the radius of the cylinder To calculate the moment of inertia for a steel round bar, it is necessary to possess knowledge of both the bar's mass and radius. The mass can be determined by multiplying the steel's density by the cylinder's volume. The volume of a cylinder is given by the subsequent formula: V = π * r^2 * h Where: - V symbolizes the volume - r stands for the radius - h represents the height or length of the round bar After obtaining the mass and radius, one can then substitute these values into the formula for moment of inertia to compute it. It is crucial to ensure unit consistency during this process (e.g., converting centimeters to meters if the radius is initially given in centimeters). It is important to note that the aforementioned formula assumes that the steel round bar is a solid cylinder. Should the bar possess a different shape or contain hollow sections, these factors must be taken into consideration when conducting the calculation.

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: What is the maximum temperature a steel round bar can withstand?: The maximum temperature a steel round bar can withstand depends on several factors such as the specific type of steel, its composition, and the intended application. Generally, most common grades of steel have a maximum temperature limit of around 1,200 to 1,400 degrees Fahrenheit (650 to 760 degrees Celsius). However, some stainless steels can withstand higher temperatures, reaching up to 2,200 degrees Fahrenheit (1,200 degrees Celsius). Additionally, specialized heat-resistant alloys such as Inconel or Hastelloy can withstand even higher temperatures, up to 2,500 degrees Fahrenheit (1,370 degrees Celsius) or more. It is crucial to consult the manufacturer's specifications or conduct thorough research to determine the precise maximum temperature limit for a specific steel round bar in order to ensure its safe and efficient use.

Send your message to us

*Email

*TEL

*Quantity

*Unit

Company

*More

This is not what you are looking for? Post Buying Request