4140 Mild Steel Round Bar Sizes
- Ref Price:
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 500000 m.t./month
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Specification
4140 Mild Steel Round Bar Sizes
Product Description of 4140 Mild Steel Round Bar Sizes
1. Steel grade: ASTM4140, SCM440, 42CrMo, DIN1.7225
2. Length: 6M-12M
3. Diameter: 16mm-300mm
4. Product range: round bar, flat bar, square bar
5. Technique: Hot rolled, forged, cold drawn
Specification of 4140 Mild Steel Round Bar Sizes
Material | SCM4140 | Round bar | Dia(mm) | 16-300mm |
Process | EAF + LF + VD + Forged + Heat Treatment (optional) | Length (mm) | Max 12m | |
Heat treatment | Normalized / Annealed / Quenched / tempered | Flat bar | Thickness(mm) | 8-500mm |
Delivery condition | Hot forged +Rough machined (black surface after Q/T)+ Turned (optional) | Width(mm) | 70-200mm | |
Test | Ultrasonic test according to SEP 1921-84 D/d | Length (mm) | Max 12m |
Chemical Composition of 4140 Mild Steel Round Bar Sizes
C | Si | Mn | Cr | Mo | P | S |
0.38~0.43 | 0.15~0.35 | 0.75~1.00 | 0.8~1.1 | 0.15~0.25 | ≤0.035 | <0.04< td=""> |
Photo Show of 4140 Mild Steel Round Bar Sizes
Packing and Delivery:
Packing in bundle package, or as customer's requirements.
Delivery Detail: 45 days after receiving the deposit.
Usage and Applications of 4140 Mild Steel Round Bar Sizes
1. Steel round bar is used in a large number of architectural and engineering structures. Or it can be used in construction of plants for the production of steel house frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc.
2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.
3. Some special material steel round bar can be used for main shaft of steamer, hummer shank, with big section and supper force.
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.
F A Q
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.
- Q: Are the bolts for the round bar or round steel?
- If in some large-scale concrete component under the condition of some units to prevent run mode is used, the bar, the bar is the best quality, and the tensile strength is great, because the price advantage is not, it is generally not recommended to use the bar as a pull screw.
- Q: How are steel round bars heat treated?
- Steel round bars are typically heat treated through a process called quenching and tempering. First, the bars are heated to a specific temperature to transform the internal structure of the steel. Then, they are rapidly cooled by quenching in a liquid, such as oil or water, to harden the steel. Finally, tempering is performed by reheating the bars to a lower temperature to reduce brittleness and enhance toughness. This heat treatment process improves the strength, hardness, and overall performance of steel round bars.
- Q: Do steel round bars have a maximum load capacity?
- Steel round bars do possess a maximum load capacity. The load capacity is determined by several factors, including the bar's diameter, length, type and grade of steel, and the industry standards or specific application it is used for. Testing and analysis are typically employed to determine the load capacity, taking into account factors like yield strength, ultimate tensile strength, and the bar's ability to withstand bending or deformation under load. To maintain safety and structural integrity, it is crucial to refer to engineering specifications and guidelines to prevent exceeding the maximum load capacity of a steel round bar.
- Q: Can steel round bars be used for making drill bits?
- No, steel round bars cannot be directly used for making drill bits. Drill bits require specific materials and manufacturing processes to ensure the necessary hardness, sharpness, and durability.
- Q: What are the common finishes for steel round bars?
- The common finishes for steel round bars include hot rolled, cold drawn, turned and polished, and centerless ground.
- Q: Can steel round bars be used in the automotive industry?
- Yes, steel round bars can be used in the automotive industry. Steel round bars are commonly used in the automotive industry for various applications. They are often utilized for manufacturing components such as axles, drive shafts, suspension parts, and steering components. Steel round bars offer high strength, durability, and resistance to wear and tear, making them suitable for withstanding the demanding conditions and loads experienced by automotive components. Additionally, steel round bars can be easily machined and welded, allowing for efficient production and assembly processes in the automotive industry. Overall, steel round bars are a reliable and cost-effective choice for automotive manufacturers, making them a popular material for use in the industry.
- Q: Can steel round bars be welded to other materials?
- Yes, steel round bars can be welded to other materials. The process typically involves using compatible welding techniques and materials, such as specific filler metals, to achieve a strong and durable bond between the steel round bar and the other material.
- Q: How do you calculate the weight of a steel round bar based on its density and dimensions?
- To calculate the weight of a steel round bar, you need to know its density and dimensions. The formula to calculate weight is W = V x D, where W represents weight, V represents volume, and D represents density. First, you need to find the volume of the round bar. The formula to calculate the volume of a cylinder is V = πr^2h, where V represents volume, π is a constant (approximately 3.14159), r represents the radius of the round bar, and h represents the height or length of the round bar. If you have the diameter of the round bar instead of the radius, you can divide the diameter by 2 to find the radius. Once you have the radius, you can substitute it into the formula along with the height of the round bar to calculate the volume. Next, you need to know the density of the steel. The density of steel is typically measured in grams per cubic centimeter (g/cm^3) or kilograms per cubic meter (kg/m^3). Make sure the units of both the density and volume are consistent. If the density is given in g/cm^3, convert the volume from cm^3 to m^3 by dividing it by 1,000,000. Finally, multiply the volume by the density to calculate the weight. If the density is in kg/m^3, the weight will be in kilograms. If the density is in g/cm^3, the weight will be in grams. You can convert the weight to other units by using appropriate conversion factors. Remember to double-check your calculations and ensure that all units are consistent throughout the calculation.
- Q: What are the tolerance levels for steel round bars?
- Steel round bars have varying tolerance levels depending on the specific application and industry standards. To ensure precision in terms of diameter, straightness, and surface finish, steel round bars are typically produced with tight dimensional tolerances. Diameter tolerances specify the acceptable range of deviation from the nominal diameter of the round bar and are expressed as a plus or minus value, such as +/- 0.005 inches. The specific tolerance depends on the size, type of steel round bar, and application requirements. Straightness tolerances determine the allowable amount of deviation from a perfectly straight line along the length of the round bar. This tolerance is expressed as the maximum distance between the round bar and a straight edge placed along its length. For instance, a straightness tolerance of 0.030 inches per foot means that a one-foot section of the round bar can deviate up to 0.030 inches from a straight line. Surface finish tolerances specify the acceptable level of imperfections or irregularities on the surface of the round bar. This tolerance is often expressed using roughness average (Ra) or roughness peak (Rz) values. The specific tolerance depends on the desired surface finish and application requirements. It is worth noting that tolerance levels may also be subject to industry-specific standards established by organizations like the American Society for Testing and Materials (ASTM) or the International Organization for Standardization (ISO). These standards provide guidelines and specifications for various steel products, including round bars, to ensure consistent quality and performance. Ultimately, determining the tolerance levels for steel round bars involves considering the specific application requirements, industry standards, and the capabilities of the manufacturing process.
- Q: Can steel round bars be used in the manufacturing of household appliances?
- Household appliances can indeed make use of steel round bars. Steel, being a versatile and durable material, is widely employed in a variety of industries, including the manufacturing of appliances for homes. The construction of appliance frames, support structures, and even internal components can all benefit from the utilization of steel round bars. Its high strength and resistance to corrosion make steel an excellent choice for ensuring the longevity and durability of household appliances. Moreover, steel can be easily molded and shaped to precise dimensions, allowing for the creation of appliances with intricate designs. In summary, incorporating steel round bars into the manufacturing process of household appliances helps to produce products that are of superior quality, reliability, and longevity.
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4140 Mild Steel Round Bar Sizes
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 500000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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