1.2311 Steel Round Bar
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 100000 m.t./month
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Item specifice
Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Certification:
ISO,SGS,CE
Thickness:
as required
Length:
as required
Net Weight:
as required
1.2311 Steel Round Bar
Grade: 3Cr2Mo/P20/1.2311/Bp20
Characteristic
1, Good hardenability.
2, Polished good performance
3, Good mechanical properties.
4, Section's hardness is uniform.
Chemical composition of 3Cr2Mo
| C | Si | Mn | Cr | Mo | P | S |
| 0.28~0.40 | 0.20~0.80 | 0.60~1.00 | 1.40~2.00 | 0.30~0.55 | ≤0.030 | ≤0.030 |
Specification
Round bar | Diameter (mm) | Length (mm) | |
50~500 | 2000~5800 | ||
plate/sheet | Thickness (mm) | Width (mm) | Length (mm) |
20~400 | 80~1000 | 2000~5800 |
Steel Surface
Steel Sharp | Surface treatment |
Round bar | Black /Grinding / Polished / Peeled / Turned |
steel plate | Black / Milling / Machined |
Application
1. 3Cr2Mo is suitable for making medium and large,sophishticated long-life plastic mold steel.
2. 3Cr2Mo is suitable for manufacturing low melting point alloy die casting and heavy mold main components.
Physical properties
Thermal conductivity
| Temperature/°c | 20 | 100 | 200 | 300 | 400 |
| Thermal conductivityλ/W•(m•K)¯¹ | 36.0 | 33.4 | 31.4 | 30.1 | 29.3 |
Coefficient of expansion
| Temperature/°C | 18~100 | 18~200 | 18~300 | 18~400 | 18~500 | 18~600 | 18~700 |
| Coefficient of expansion/°C-1 | 11.9*10-6 | 12.20*10-6 | 12.5*10-6 | 12.81*10-6 | 13.11*10-6 | 13.41*10-6 | 13.71*10-6 |
Company equipment
smelting equipment : 3 and 4 tons induction furnaces;electric slag furnaces of 0.5t,1t,3t,5t,especially 3 and 5 tons electric slag
furnaces which feature both unipolar and bipolarity series functions.etc.
Processing equipments : electric hydraulic hammer; supporting equipments, gas producer, reheating furnace, gas annealing
furnace, electric annealing saw, etc.
Detective equipments : functions of chemical annalysis, physics property and mechnical property, etc.
- Q:Can steel round bars be used for making power transmission systems?
- Yes, steel round bars can be used for making power transmission systems. Steel round bars possess high strength and durability, making them suitable for transmitting power in various applications such as gears, shafts, and couplings.
- Q:What is the difference between a centerless ground and a hot rolled steel round bar?
- The main difference between a centerless ground steel round bar and a hot rolled steel round bar is the manufacturing process. Centerless grinding involves removing material from the bar's outer diameter using abrasive wheels, resulting in a precise and smooth finish. On the other hand, hot rolling involves heating the steel and passing it through a series of rollers to shape it into a round bar, often resulting in a rougher surface. Additionally, centerless ground bars tend to have tighter dimensional tolerances and better surface quality compared to hot rolled bars.
- Q:Are steel round bars resistant to corrosion?
- Yes, steel round bars can be resistant to corrosion depending on the type of steel and the environment they are exposed to. Stainless steel round bars, for example, contain chromium which forms a thin passive layer on the surface that protects against corrosion. This layer is self-repairing and provides excellent resistance to corrosion in many environments, including moisture, chemicals, and saltwater. However, carbon steel round bars are not inherently corrosion-resistant and may require additional protective coatings or treatments to prevent corrosion. Therefore, it is important to consider the specific type of steel and the intended application when determining the corrosion resistance of steel round bars.
- Q:What are the different types of steel alloys used for round bars?
- There are several different types of steel alloys used for round bars, each offering unique properties and characteristics that make them suitable for various applications. Some of the commonly used steel alloys for round bars include: 1. Carbon Steel: This is the most common type of steel alloy used for round bars. It contains primarily carbon and iron, and offers excellent strength and toughness. Carbon steel round bars are commonly used in construction, manufacturing, and general engineering applications. 2. Stainless Steel: This alloy contains chromium, which provides corrosion resistance and makes it suitable for applications where rust or oxidation is a concern. Stainless steel round bars are widely used in the food and beverage industry, as well as in marine and chemical industries. 3. Alloy Steel: This type of steel alloy is made by adding other elements such as manganese, nickel, or chromium to improve its mechanical properties. Alloy steel round bars are known for their high strength, hardness, and resistance to wear and tear. They are commonly used in automotive, aerospace, and machinery industries. 4. Tool Steel: Tool steel alloys are specifically designed to have high hardness, wear resistance, and toughness. They are used for making cutting tools, dies, and molds. Tool steel round bars are available in various grades, such as D2, O1, and A2, each with specific properties for different applications. 5. Duplex Steel: This alloy contains a combination of austenitic and ferritic stainless steels, offering a combination of high strength and corrosion resistance. Duplex steel round bars are used in applications where both strength and resistance to corrosion are required, such as in the oil and gas industry. These are just a few examples of the different types of steel alloys used for round bars. The specific choice of alloy depends on the desired properties and the intended application of the round bar.
- Q:Can steel round bars be threaded or machined?
- Yes, steel round bars can be threaded or machined.
- Q:What are the different types of steel round bars used in the manufacturing of tools?
- There are several types of steel round bars commonly used in tool manufacturing, including carbon steel, alloy steel, stainless steel, and tool steel. Each type has its own unique properties and characteristics, making it suitable for specific applications and requirements. Carbon steel round bars are strong and cost-effective, while alloy steel round bars offer enhanced strength, hardness, and wear resistance. Stainless steel round bars are corrosion-resistant and often used in tools requiring cleanliness and hygiene. Tool steel round bars are specifically designed for tool manufacturing, offering high hardness, toughness, and heat resistance.
- Q:What are the different types of steel round bars used in the manufacturing of gears?
- In gear manufacturing, there are different types of steel round bars commonly utilized. These types include: 1. Carbon steel round bars: Carbon steel is widely used in gear manufacturing due to its favorable qualities of strength, wear resistance, and durability. It is suitable for various gear applications. 2. Alloy steel round bars: Alloy steel contains additional alloying elements like chromium, nickel, or molybdenum. These elements enhance the mechanical properties of the steel, such as strength, toughness, and resistance to wear and fatigue. High-performance gears often utilize alloy steel round bars. 3. Stainless steel round bars: Stainless steel is recognized for its corrosion resistance and high strength-to-weight ratio. It is commonly employed in gear manufacturing applications where resistance to rust and corrosion is crucial, such as in marine or outdoor equipment. 4. Tool steel round bars: Tool steel is a high-carbon steel specifically designed for cutting tools, molds, and dies. It possesses exceptional hardness, wear resistance, and toughness, making it suitable for gears subjected to heavy loads and high temperatures. 5. Case-hardened steel round bars: Case hardening is a heat treatment process that creates a hard surface layer on steel while maintaining a tough and ductile core. Case-hardened steel round bars are frequently used in gear manufacturing to provide a wear-resistant surface and enhance the overall strength and durability of gears. The selection of steel round bars for gear manufacturing depends on various factors, including the specific application, desired mechanical properties, and budget constraints. It is crucial to choose the appropriate type of steel that meets the gear's requirements in terms of strength, wear resistance, and durability to ensure optimal performance and longevity.
- Q:Are steel round bars suitable for machining?
- Yes, steel round bars are suitable for machining. They are commonly used in manufacturing processes such as drilling, turning, milling, and grinding due to their excellent machinability and ability to maintain tight tolerances.
- Q:What is the difference between a cold finished and a turned steel round bar?
- A cold finished steel round bar is processed through cold drawing or cold rolling processes, resulting in a smoother and more precise surface finish. On the other hand, a turned steel round bar is machined on a lathe, which removes material to achieve the desired dimensions and surface finish. Overall, the difference lies in the manufacturing process and the resulting surface finish of the two types of steel round bars.
- Q:How do you calculate the maximum allowable stress for a steel round bar?
- To calculate the maximum allowable stress for a steel round bar, you need to determine the material's yield strength and apply a safety factor. The formula is: Maximum Allowable Stress = Yield Strength / Safety Factor. The safety factor typically depends on the application and industry standards.
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1.2311 Steel Round Bar
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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