1040 Carbon Structural Steel Round Bars
- Ref Price:
-
- 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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1040 Carbon Structural Steel Round Bars
Products Details
Mild steel is sometimes referred to as carbon steel or plain steel. Typically, it is stiff and strong. Carbon steels do rust easily, but they can be easily painted or primed. They are cheap so they are the normal choice for most fabrications. Mild Steel can be easily cut or drilled to meet your requests.
Mild Steel Round Bar is used for making security grills, screens, Construction and Machine Manufacture.
Material: Q195; Q235; A36; SS400; ST37; SAE1006/1008; S275JR; 20#; 45#; Q345,S355JR; 16Mn; ST52;
42CrMo; 40CrNiMo etc.
1. Sizes Information
| Sizes detalis | diameter | 16-320mm |
| length | 3-12m(canbe customerized) | |
| Sizes tolerance | length | +/-100mm |
| Straightness | 3mm/m |
2. Grade Comparison
| GB | ASTM | JIS | DIN | BS | NF |
| 40# | 1040 | S40C | C40 | IC40080M40 | C40 |
3. Chemical Composition
| C | Si | Mn | Cr(≤) | Ni(≤) | Cu(≤) |
| 0.37-0.44 | 0.17-0.37 | 0.5-0.8 | 0.25 | 0.3 | 0.25 |
4. Mechanical Properties
| Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation | Shrinkage | Akv(J) | ||||
| 570 | 335 | 19 | 45 | 47 | ||||
Products Show
Product Overviews
| 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) |
Application
| 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 |
Work Shop
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 used in the production of construction materials?
- Indeed, the utilization of steel round bars is feasible in the manufacturing of construction materials. Owing to their remarkable robustness and endurance, steel round bars find frequent application within the construction sector. These bars are instrumental in fortifying concrete structures, exemplified by the reinforcement of beams, columns, and slabs, thereby enhancing their resilience and steadfastness. Furthermore, in the construction of buildings and bridges, steel round bars can be employed in the creation of steel frames, trusses, and various structural constituents. The widespread popularity of these bars stems from their adaptability and capacity to endure substantial burdens in the construction industry.
- Q: How to make the round welds on flat steel flat and qualified?
- It is required that the current is suitable and the bar is stable. If required, the groove can be turned on the round steel to ensure that the welding is beautiful and qualified
- Q: How do you calculate the torsional strength of a steel round bar?
- To determine the torsional strength of a steel round bar, it is necessary to take into account its material properties and dimensions. The torsional strength, also referred to as torsional yield strength or shear strength, denotes the maximum torque or twisting force that a round bar can endure without experiencing permanent deformation or failure. The torsional strength can be calculated using the following formula: Torsional Strength = (Torsional Constant * Yield Strength) / (Polar Moment of Inertia * Length) 1. Torsional Constant: This constant relies on the shape of the round bar's cross-section. In the case of a solid round bar, the torsional constant is given by (π * D^4) / 32, where D represents the bar's diameter. 2. Yield Strength: This is the stress at which the steel material starts to plastically deform. It is typically provided by the manufacturer or can be determined through material testing. 3. Polar Moment of Inertia: This property signifies the round bar's resistance to torsional deformation. For a solid round bar, the polar moment of inertia equals (π * D^4) / 32. 4. Length: This denotes the extent of the round bar where the torsional force is applied. By substituting these values into the formula, the torsional strength of the steel round bar can be calculated. It is important to note that this computation assumes the round bar is completely homogeneous, devoid of any defects, and subjected solely to pure torsion. It is crucial to bear in mind that torsional strength is just one factor to consider when assessing the suitability of a steel round bar for a specific application. Other considerations, such as fatigue strength, corrosion resistance, and load-bearing capacity, should also be taken into account. For accurate calculations and appropriate material selection, it is advisable to consult a professional engineer or refer to pertinent industry standards.
- Q: What are the different types of steel round bar heat treatments?
- Some common types of heat treatments for steel round bars include annealing, normalizing, quenching and tempering, and case hardening.
- Q: What are the different machining processes used for steel round bars?
- Steel round bars can be machined using various processes to achieve specific outcomes and meet project specifications. Some commonly employed machining processes for steel round bars include the following: 1. Turning: By rotating the round bar and utilizing a cutting tool, material is removed to create the desired shape or size. This method is often employed to decrease the diameter or produce precise cylindrical shapes. 2. Drilling: Holes are created in the steel round bar using a rotating cutting tool called a drill bit. This process is frequently used for installing bolts, screws, or other fasteners. 3. Milling: Material is removed from the surface of the steel round bar using a rotating cutting tool with multiple teeth. This method is employed to create flat surfaces, grooves, or intricate shapes. 4. Grinding: Abrasive particles are used to remove material from the steel round bar, resulting in a smooth surface finish and achieving specific tolerances. This process is commonly used to refine the surface or eliminate imperfections. 5. Thread rolling: External threads are created on the steel round bar by pressing a hardened steel die against the rotating bar, causing the material to flow and form the desired threads. 6. Cold drawing: The steel round bar is pulled through a die, reducing its diameter and enhancing its surface finish. This process is utilized to achieve precise dimensions and improve the mechanical properties of the bar. 7. Heat treatment: Although not a machining process itself, heat treatment is often combined with machining to enhance the properties of the steel round bar. Processes like annealing, quenching, and tempering can improve hardness, strength, and toughness. These represent just a few of the numerous machining processes available for steel round bars. The selection of a specific process depends on factors such as the desired shape, size, surface finish, and mechanical properties required for the intended application.
- Q: Are steel round bars resistant to UV radiation?
- No, steel round bars are not inherently resistant to UV radiation.
- Q: What are the advantages of using high-speed steel round bars?
- There are several advantages of using high-speed steel (HSS) round bars in various applications. Firstly, HSS round bars are known for their exceptional hardness and wear resistance. This makes them ideal for cutting, shaping, and machining operations that involve high-speed and high-temperature conditions. HSS round bars can withstand the heat generated during these processes without losing their hardness or dulling quickly, resulting in improved tool life and reduced downtime for tool changes. Secondly, HSS round bars have excellent strength and toughness properties. This enables them to handle heavy loads and resist deformation, even under demanding applications. The strength and toughness of HSS round bars make them suitable for use in industries such as aerospace, automotive, and manufacturing, where precision and reliability are critical. Thirdly, HSS round bars offer superior cutting performance. Due to their high hardness, HSS round bars can retain a sharp cutting edge for an extended period. This allows for efficient and precise cutting, reducing the chances of inaccuracies or errors in the workpiece. The sharp cutting edge also contributes to improved surface finish and dimensional accuracy. Additionally, HSS round bars have good thermal conductivity, meaning they can efficiently dissipate heat generated during cutting or machining operations. This prevents overheating, which can lead to premature tool failure or damage. The ability of HSS round bars to manage heat buildup helps maintain the integrity of the tool and extends its lifespan. Lastly, HSS round bars are readily available and cost-effective compared to other high-performance tool materials like carbide. This makes them a popular choice for a wide range of applications, especially in industries where cost considerations are significant. In conclusion, the advantages of using high-speed steel round bars include exceptional hardness and wear resistance, excellent strength and toughness, superior cutting performance, good thermal conductivity, and cost-effectiveness. These advantages make HSS round bars a preferred choice for professionals and industries that require reliable and efficient cutting and machining tools.
- Q: Weight algorithm of round steel
- Round steel weight = density * volume = density * base area * length of round bar.Round steel is a solid strip of steel whose cross section is round. Its specifications are expressed in diameter, in units of millimeters (mm), such as "50mm", which means a diameter of 50 millimeters of round steel.
- Q: What is the corrosion resistance of steel round bars?
- The corrosion resistance of steel round bars depends on the type of steel and the environmental conditions they are exposed to. Generally, stainless steel round bars offer excellent corrosion resistance due to the presence of chromium, which forms a protective oxide layer on the surface of the steel. This oxide layer acts as a barrier, preventing further corrosion from occurring. However, carbon steel round bars are more susceptible to corrosion, especially in environments with high moisture or exposure to corrosive substances. In these cases, additional protective measures such as coatings or galvanizing may be required to enhance their corrosion resistance. It's important to note that the performance of steel round bars in corrosive environments also depends on various factors like temperature, pH level, and the presence of other elements or chemicals. Therefore, it is recommended to consider the specific application and consult with corrosion experts to determine the most suitable steel grade and corrosion protection measures for your needs.
- Q: What are the different types of steel round bars used in the manufacturing of gears?
- There are several types of steel round bars commonly used in the manufacturing of gears. Some of the most common ones include alloy steel round bars, carbon steel round bars, stainless steel round bars, and tool steel round bars. These steel round bars offer different properties and characteristics that are suitable for various gear applications, such as high strength, durability, wear resistance, and corrosion resistance. The specific type of steel round bar used depends on the specific requirements of the gear and the operating conditions it will be subjected to.
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1040 Carbon Structural Steel Round Bars
- 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
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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