En1A Free Machining Steel Round Bars
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 500000 m.t./month
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Item specifice
En1A Free Machining Steel Round Bars
Product Description of En1A Free Machining Steel Round Bars
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 En1A Free Machining Steel Round Bars
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 En1A Free Machining Steel Round Bars
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 En1A Free Machining Steel Round Bars
Packing and Delivery:
Packing in bundle package, or as customer's requirements.
Delivery Detail: 45 days after receiving the deposit.
Usage and Applications of En1A Free Machining Steel Round Bars
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 steel round bars available in custom lengths?
- Custom lengths of steel round bars are indeed obtainable. While steel round bars are usually produced in standard lengths, numerous suppliers provide the possibility of tailoring them to specific lengths based on customer demands. This grants increased adaptability for various applications necessitating precise lengths. Whether shorter or longer steel round bars are needed, individuals can reach out to a steel supplier or fabricator for assistance in acquiring custom lengths that align with their project's specifications.
- Q:Can steel round bars be plated with other metals?
- Yes, steel round bars can be plated with other metals. Plating is a process in which a thin layer of one metal is applied to the surface of another metal. This is commonly done to enhance the appearance of the steel round bar or to provide it with additional properties such as corrosion resistance or improved conductivity. The plating process involves immersing the steel round bar in a solution that contains ions of the desired metal. Through the use of electrical currents or chemical reactions, the metal ions are deposited onto the surface of the steel, forming a thin and uniform coating. Popular metals used for plating steel round bars include nickel, chrome, zinc, and copper. Plating is a versatile and cost-effective method to improve the performance and aesthetics of steel round bars for various applications.
- Q:What is the elasticity of a steel round bar?
- The elasticity of a steel round bar refers to its ability to return to its original shape after being subjected to external forces or deformation. Steel is known for its high elasticity, meaning it can withstand significant stress and strain without permanent deformation. This property makes steel round bars suitable for various applications, including construction, manufacturing, and engineering.
- Q:How is the weight of a steel round bar calculated?
- To determine the weight of a steel round bar, one must employ a formula that incorporates the bar's diameter, length, and the density of the steel variant in question. The formula is as follows: Weight = (π/4) x (diameter)^2 x length x density Within this formula, the symbol π denotes the mathematical constant pi (approximately 3.14159), the diameter signifies the measurement across the broadest point of the round bar, the length refers to the measurement from one end of the bar to the other, and the density pertains to the mass per unit volume of the specific steel type. By substituting the values of diameter, length, and density into this formula, it becomes possible to compute the weight of a steel round bar. It is important to note that the weight will be expressed in units of mass, such as kilograms or pounds, depending on the adopted system of measurement.
- Q:Are steel and round steel the same thing?
- Round bar is divided into three parts: hot rolling, forging and cold drawing. Standard Specification for hot rolled round steel is 5.5-250 mm. Where: 5.5-25 mm small round steel mostly straight bundles of supply, used for steel, bolts and various mechanical parts; greater than 25 mm round steel, seamless steel pipe is mainly used for the manufacture of mechanical parts of the tube, etc..
- Q:What is the difference between a rough turned and a hot rolled steel round bar?
- A rough turned steel round bar is a type of steel bar that has been partially machined to remove imperfections and excess material, leaving a rough surface finish. This process helps to refine the dimensions and shape of the bar, making it more accurate and consistent. On the other hand, a hot rolled steel round bar is a type of steel bar that has been heated to high temperatures and then passed through a series of rollers to achieve the desired shape and size. This process results in a smooth surface finish and provides a uniform grain structure, which enhances the strength and durability of the steel. In summary, the main difference between a rough turned and a hot rolled steel round bar lies in the surface finish and manufacturing process used to produce them.
- Q:Can steel round bars be used for making tools?
- Yes, steel round bars can be used for making tools. Steel is a commonly used material in tool manufacturing due to its high strength, durability, and resistance to wear and tear. Round bars provide a solid and versatile form that can be machined and shaped into various tool types, such as wrenches, hammers, chisels, and punches.
- Q:Can steel round bars be used for making punches and dies?
- Yes, steel round bars can be used for making punches and dies. Steel round bars are commonly used in tool and die making due to their high strength and durability. They can be machined or forged into the desired shape and then hardened to ensure a long lifespan and resistance to wear and deformation. The hardness and toughness of steel round bars make them ideal materials for withstanding the high forces and pressures involved in punching and shaping various materials. Additionally, steel round bars are readily available in various sizes and grades, making them a cost-effective choice for making punches and dies.
- Q:Can steel round bars be used for decorative purposes?
- Yes, steel round bars can be used for decorative purposes. They can be shaped, polished, and designed in various patterns to enhance the aesthetic appeal of architectural elements, furniture, sculptures, and other decorative objects. The versatility and durability of steel make it a popular choice for both functional and decorative applications.
- Q:What are the different types of tests performed on steel round bars for quality control?
- There are several types of tests performed on steel round bars for quality control purposes. These tests help to ensure that the steel bars meet the required standards and specifications. Some of the common tests conducted on steel round bars include: 1. Tensile Test: This test evaluates the tensile strength, yield strength, and elongation properties of the steel bars. It involves applying a pulling force to the bar until it breaks, measuring the maximum force the bar can withstand, and determining the bar's ability to stretch without fracturing. 2. Hardness Test: The hardness test measures the resistance of the steel bar to indentation or scratching. It provides an indication of the bar's strength and durability. Common hardness tests include Rockwell, Brinell, and Vickers tests. 3. Chemical Composition Analysis: This test determines the chemical composition of the steel round bars, including the percentage of various elements such as carbon, manganese, sulfur, phosphorus, and others. It ensures that the bars meet the specified chemical composition requirements. 4. Ultrasonic Testing: Ultrasonic testing uses high-frequency sound waves to detect any internal defects or discontinuities within the steel bars. This non-destructive test helps identify cracks, voids, or other defects that may affect the bar's structural integrity. 5. Dimensional Inspection: This test ensures that the steel round bars meet the required dimensional tolerances, including diameter, length, and straightness. It involves using precision measuring instruments such as calipers, micrometers, and gauges to verify the bar's dimensions. 6. Surface Quality Examination: This test inspects the surface condition of the steel bars for any defects, such as cracks, pits, scratches, or other surface irregularities. It is crucial to ensure that the bars have a smooth and defect-free surface for proper functionality and safety. 7. Microstructure Analysis: Microstructure analysis involves examining the steel bar's internal structure under a microscope. It helps determine the grain size, inclusion content, and overall microstructural integrity of the bars. This analysis provides insights into the bars' mechanical properties and their ability to withstand various loads and stresses. By performing these tests, manufacturers can ensure that the steel round bars meet the required quality standards and are suitable for their intended applications.
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En1A Free Machining Steel Round Bars
- 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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