Carbon Alloy Steel Round Bars AISI 4140
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- Loading Port:
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- Payment Terms:
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- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 10000 m.t./month
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Carbon Alloy Steel Round Bars AISI 4140
Technical Paramenters
Chemical Composition | Mechanical Properties (In Quenched & Tempered State) | ||
C | 0.38-0.43 % | Tensile strength(MPA) | ≥1080(110) |
Si | 0.15-0.35% | Yield strength (MPA) | ≥930(95) |
Mn | 0.75-1.00 % | Elongation (δ5/%) | ≥12 |
Cr | 0.80-1.10 % | Reduction in Area (ψ/%) | ≥45 |
Ni | ≤0.030 % | Impact (J) | ≥ 63 |
P | ≤0.030 % | Impact toughness value αkv (J/cm2) | ≥78(8) |
S | ≤0.040 % | Hardness | ≤217HB |
Cu | ≤0.030 % | ||
Mo | 0.15-0.25 % | ||
Products Show
Standard Grades
Werkstoff-NO. | DIN-EN | DIN-Abbreviation | SAE/AISI |
1.1545 | 10096 | C 105 W1 | W110 |
1.1730 | 10096 | C 45 W | -- |
1.2063 | 10096 | 145Cr6 | - |
1.2067 | 10096 | 100Cr6 | L1/L3 |
1.2080 | 10096 | X210Cr12 | D3 |
1.2101 | 10096 | 62SiMnCr4 | - |
1.2210 | 10096 | 115CrV3 | L2 |
1.2363 | 10096 | X100CrMoV5 1 | A2 |
1.2379 | 10096 | X155CrVMo12 | D2 |
1.2419 | 10096 | 105WCr6 | - |
1.2436 | 10096 | X210CrW12 | D6 |
1.2510 | 10096 | 100MnCrW4 | O1 |
1.2542 | 10096 | 45 WCrV7 | S1 |
1.2550 | 10096 | 60WCrV7 | S1 |
1.2601 | 10096 | X165CrMoV 12 | - |
1.2721 | 10096 | 50 NiCr13 | - |
1.2826 | 10096 | 60MnSiCr4 | - |
1.2842 | 10096 | 90MnCrV8 | O2 |
Chemical Elements: | |||||||||||
Grade | C | Si | Mn | P≤ | S≤ | Cr | Mo | V | W | OTHER | |
1.2344/SKD61/H13 | 0.35-0.42 | 0.80-1.20 | 0.25-0.50 | 0.03 | 0.02 | 4.80-5.50 | 1.00-1.50 | 0.80-1.15 | Cu≤0.25 Ni≤0.25 | ||
4Cr5MoSiV1 | 0.32-0.42 | 0.80-1.20 | 0.20-0.50 | 0.030 | 0.030 | 4.75-5.50 | 1.10-1.75 | 0.80-1.20 | |||
1.2379/D2/SKD11 | 1.50-1.60 | 0.10-0.40 | 0.15-0.45 | 0.030 | 0.030 | 11.0-12.0 | 0.60-0.80 | 0.90-1.10 | |||
1.2510/O1/SKS3 | 0.85-1.0 | 0.10-0.50 | 1.0-1.40 | 0.030 | 0.030 | 4.75-5.50 | ≤0.30 | 0.4-0.6 | |||
1.2363/A2/SKD12 | 0.95-1.05 | 0.10-0.50 | 0.40-1.00 | 0.030 | 0.030 | 4.75-5.50 | 0.90-1040 | 0.15-0.50 | |||
4140 | 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | 0.035 | 0.040 | 0.80-1.10 | 0.15-0.25 | ||||
4340 | 0.38-0.43 | 0.15-0.35 | 0.60-0.80 | 0.035 | 0.040 | 0.70-0.90 | 0.20-0.30 | Ni 1.65-2.00 | |||
P20/1.2330/M202 | 0.28-0.40 | 0.20-0.80 | 0.60-1.00 | 0.030 | 0.030 | 1.40-2.00 | 0.30-0.55 | ||||
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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 is the difference between a solid and a hollow steel round bar?
- The main difference between a solid and a hollow steel round bar lies in their construction. A solid steel round bar is made entirely of solid steel material throughout its entire length. On the other hand, a hollow steel round bar has a hollow center, creating a tube-like structure. This design reduces the weight of the bar while maintaining its strength. Solid round bars are often used when high strength and durability are required, while hollow round bars are commonly used in applications where weight reduction is a priority, such as in construction or engineering projects.
- Q:What are the different testing methods for steel round bars?
- There are several testing methods employed to assess the quality and performance of steel round bars. These methods include: 1. Tensile Testing: Tensile testing is conducted to determine the strength and elasticity of steel round bars. It involves applying a force to the bar until it reaches its breaking point, measuring the maximum load it can withstand before fracture occurs. This test helps to determine the ultimate tensile strength, yield strength, and elongation of the steel. 2. Hardness Testing: Hardness testing is used to assess the resistance of steel round bars to indentation or scratching. Common methods include the Rockwell, Brinell, and Vickers hardness tests. These tests provide valuable information about the material's ability to resist wear, deformation, and surface damage. 3. Charpy Impact Testing: Charpy impact testing measures the toughness and resistance to brittle fracture of steel round bars. The test involves striking a notched sample with a pendulum, measuring the energy absorbed during fracture. This test is crucial in evaluating the material's behavior under sudden impact or dynamic loading conditions. 4. Ultrasonic Testing: Ultrasonic testing utilizes high-frequency sound waves to detect internal flaws or defects in steel round bars. This non-destructive testing method can identify cracks, inclusions, or voids that may compromise the structural integrity of the material. 5. Magnetic Particle Inspection: This testing method is used to identify surface cracks or defects in steel round bars. It involves magnetizing the material and applying iron particles or magnetic ink. Any surface cracks or flaws will cause a leakage of magnetic flux, making them visible under proper lighting. 6. Visual Inspection: Visual inspection is a basic yet essential method for evaluating the quality of steel round bars. It involves examining the bar's surface for any visible defects, such as pits, scratches, or irregularities in shape or dimensions. 7. Chemical Analysis: Chemical analysis helps determine the composition of steel round bars by measuring the percentage of various elements present in the material. This information is crucial in ensuring that the steel meets the required specifications and is suitable for its intended application. Overall, a combination of these testing methods is employed to ensure the quality, performance, and reliability of steel round bars in various industries such as construction, manufacturing, and engineering.
- Q:Can steel round bars be threaded?
- Yes, steel round bars can be threaded. Threading is a common process used to create a helical ridge on the surface of a round bar, allowing it to be securely fastened to other components or fittings.
- Q:Excuse me and steel disc round what is the difference?
- Main application: Pu wire is mainly used for building reinforced concrete structure for reinforcing bars, and it can also be made of cold drawn steel wire for strapping and so on.
- Q:What are the different types of steel round bars available in the market?
- There are several different types of steel round bars available in the market, each with its own unique characteristics and applications. Some of the most common types include: 1. Mild Steel Round Bars: These are the most commonly used type of steel round bars due to their versatility and affordability. They have a low carbon content and are easy to weld and machine, making them suitable for a wide range of applications. 2. Carbon Steel Round Bars: Carbon steel round bars have a higher carbon content than mild steel, which gives them increased strength and hardness. They are commonly used in applications that require high strength, such as construction and machinery manufacturing. 3. Alloy Steel Round Bars: Alloy steel round bars are made by adding various alloying elements, such as chromium, nickel, or molybdenum, to improve their mechanical properties. These bars offer enhanced strength, toughness, and resistance to wear and corrosion, making them ideal for applications in the aerospace, automotive, and oil and gas industries. 4. Stainless Steel Round Bars: Stainless steel round bars are highly corrosion-resistant due to the presence of chromium, which forms a protective oxide layer on the surface. They are widely used in industries such as food processing, pharmaceuticals, and chemical processing, where resistance to corrosion and hygiene are crucial. 5. Tool Steel Round Bars: Tool steel round bars are specifically designed for tooling applications, such as cutting, drilling, and shaping materials. They have high hardness, wear resistance, and heat resistance, making them suitable for manufacturing tools and dies. 6. Duplex Steel Round Bars: Duplex steel round bars are a type of stainless steel that contains both austenitic and ferritic microstructures. They offer a combination of high strength, excellent corrosion resistance, and good weldability, making them ideal for applications in the chemical and petrochemical industries. These are just a few examples of the different types of steel round bars available in the market. The choice of the right type depends on the specific requirements of the application, including strength, corrosion resistance, machinability, and cost.
- Q:Can steel round bars be plated with other metals?
- Yes, steel round bars can be plated with other metals through a process called electroplating.
- Q:How are steel round bars used in the construction of dams and reservoirs?
- Steel round bars are commonly used in the construction of dams and reservoirs for reinforcement purposes. These bars are typically embedded within the concrete structures to enhance their strength and durability. The steel round bars act as a framework, providing structural integrity and preventing cracks or deformations in the concrete. This reinforcement ensures that the dam or reservoir can withstand the immense pressure and load exerted by the water, making them an essential component in the construction process.
- Q:Can steel round bars be hardened through heat treatment?
- Yes, steel round bars can be hardened through heat treatment. Heat treatment processes such as quenching and tempering can be used to change the microstructure of the steel, resulting in increased hardness and strength.
- Q:What is the resistance to fatigue of a steel round bar?
- The ability of a steel round bar to resist fatigue refers to its capacity to endure repeated cycles of loading and unloading without failing or deforming. Fatigue resistance is a crucial mechanical property for materials utilized in diverse applications, including structural components, machinery, and automotive parts. Several factors influence the fatigue resistance of a steel round bar, including the specific grade of steel, its microstructure, surface condition, and the applied loading conditions. Steel is widely recognized for its exceptional fatigue resistance in comparison to other materials, which explains its extensive utilization across various industries. The high strength, ductility, and presence of various alloying elements in steel contribute to its resistance to fatigue. These characteristics enable steel to endure cyclic loading without significant deformation or weakening. Moreover, the microstructure of the steel, such as grain size and distribution, significantly impacts its fatigue resistance. Engineers typically conduct fatigue tests, such as rotating beam or axial loading tests, to assess the fatigue resistance of a steel round bar. These tests subject the steel bar to controlled cyclic loading and measure the number of cycles it can withstand before failure occurs. The results determine the fatigue strength or fatigue limit of the steel, representing the maximum stress level it can indefinitely endure without failing. It is important to acknowledge that the fatigue resistance of a steel round bar can vary due to factors like surface defects, stress concentration, and environmental conditions. Therefore, proper design considerations, such as surface treatments, stress reduction techniques, and appropriate loading specifications, are crucial to ensure the desired fatigue performance of the steel round bar in specific applications.
- Q:How do you know the diameter and weight of a round bar?
- Round is a round, the quality of its G (in grams) is equal to the volume multiplied by the density of 7.85 steel, and its volume is equal to the bottom area multiplied by the degree of L (in cm), then the bar diameter of d=4 * G / L / 7.85 / 3.14 value points
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Carbon Alloy Steel Round Bars AISI 4140
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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