Forged Alloy Steel AISI 4140 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
Product Description of AISI 4140 Round Bar
AISI 4140 round bar are flawless completely free from cracks and flakes, and does not contain any other imperfection,such as porosity non-metallic inclusions segregations, hard spots and residual tensions to a degree affecting their strength and durability.
| Product: | forged alloy steel AISI 4140 round bar |
| Material: | 4145, 42CrMo4, 4140, SAE8620 ,4340 etc. |
| Supplier Range: | OD.200-800mm,Weight≤20T |
| Delivery time: | 30 days after receive the deposit. |
| Produce Process: | EAF + LF + VD +(ESR) + Forged + Heat Treatment (optional) |
| Delivery condition: | Hot forged, Heat-treatment (Normalized / Annealed / Quenched / tempered), Rough machining. |
| Surface Finish: | Black, Peeled, Turned & Polished |
| Payment Term: | 30% advance by T\T; Balance pay before the shipment against shipping documents or irrevocable LC at sight |
| Technical Data: | Chemical Composition, Physical Properties and Mechanical Testing according to the customer's requirement and Standard. |
The steel is suited to applications where high surface pressures exist and friction is to be resisted as in the case of severely loaded gears, axles and pinions. It is used extensively in most industry sectors for applications requiring higher tensile strength.
Packing And Delivery
| Package | Seaworthy package (or as customer require) |
| MOQ | 1 Pieces |
| Delivery | 30 days (can be short if we have stock) |
| Payment | 30%T/T in advanced+70% balanced;irrevocable L/C at sight |
| Remarks | All-risk insurance and accept the third party test |
| Port | Tianjin/Qingdao/Shanghai |
Equipment
We are well-equipped with 2000-Ton Hydraulic press, 15-Ton Hydraulic manipulator, various kinds of Lathe and boring machine, product range OD 200mm-800mm, Length less than 9m.
- Q:Can steel round bars be used in the manufacturing of couplings?
- The manufacturing of couplings can indeed make use of steel round bars. Steel round bars find widespread usage in a variety of industrial applications owing to their strength, durability, and versatility. When it comes to couplings, these are mechanical devices employed for connecting two shafts, either for power transmission or to accommodate the misalignment of the shafts. There exist diverse types of couplings, such as rigid couplings, flexible couplings, or universal couplings, each of which can be fabricated by machining, forming, or welding steel round bars. By utilizing steel round bars in the production process, the resulting couplings possess exceptional tensile strength, enabling them to endure heavy loads and torque. Moreover, steel round bars can be subjected to heat treatment, thereby augmenting their mechanical properties and rendering them suitable for an array of operating conditions and environments. Consequently, steel round bars hold considerable popularity as a preferred choice for the manufacturing of couplings.
- Q:What are the different grades of steel round bars available?
- There are several grades of steel round bars available, including low carbon steel (mild steel), medium carbon steel, high carbon steel, alloy steel, stainless steel, and tool steel. Each grade has specific properties and characteristics that make them suitable for different applications and industries.
- Q:What is the average cost of steel round bars?
- The cost of steel round bars can change depending on several factors, including size, grade, and market conditions. Normally, steel round bars are priced between $0.50 and $5 per pound. Nevertheless, it is worth mentioning that these prices are only estimates and can vary depending on the specific needs and location of the purchase. Moreover, it is essential to consider additional expenses like transportation, processing, and applicable taxes to determine the total cost. To obtain the most accurate and current information on the average cost of steel round bars in your region, it is advisable to consult local suppliers or conduct market research.
- Q:Can steel round bars be used in the manufacturing of agricultural equipment?
- Yes, steel round bars can be used in the manufacturing of agricultural equipment. Steel is a strong and durable material that provides the necessary strength and structural integrity required for agricultural machinery. It is commonly used in the production of components such as axles, shafts, and supports, making it suitable for various types of farming equipment.
- Q:How about tempering No. 45 round bar?
- During quenching and tempering, the whole section of the workpiece is quenched and the microstructure of the workpiece is obtained with fine acicular quenched martensite. By tempering at high temperature, the microstructure with uniform tempered bainite is obtained. It is impossible for a small factory to do metallographic analysis of each furnace. It is generally used only for hardness testing. That is to say, the hardness of the quenched material must be reached by the quenching hardness of the material, and the hardness after tempering shall be checked according to the requirements of the drawing.
- Q:Difference between round bar and other steel bars
- It is divided into three kinds: hot rolling, forging and cold drawing. Round steel (grade 1 steel) belongs to ordinary low carbon steel, and most other steel bars are alloy steel. Round steel is of low strength and high strength of other steel.
- Q:How do you measure the straightness tolerance of a steel round bar?
- To determine the straightness tolerance of a steel round bar, various methods can be employed based on the desired level of accuracy and precision. Below are several commonly used techniques: 1. Visual Inspection: This straightforward approach involves visually examining the bar for any noticeable deviations from straightness. Placing the bar on a flat surface allows for the detection of bends or curves along its length. However, it is worth noting that this method is subjective and may not yield precise measurements. 2. Straightedge Method: Using a straightedge such as a ruler or precision straightedge, one can assess the presence of gaps or spaces between the straightedge and the bar's surface. This method offers a higher level of accuracy but can still be influenced by human error. 3. Dial Indicator Method: By utilizing a dial indicator, a precise measuring tool, the straightness tolerance can be measured. Fixing the dial indicator to a stationary point and moving it along the length of the bar enables the identification of any deviations from a straight line. This method provides more precise measurements and can quantify the straightness tolerance in specific units like inches or millimeters. 4. Laser Measurement: Laser systems, such as laser alignment devices, serve as an effective means of measuring the straightness tolerance of a steel round bar. These systems project a straight line onto the bar's surface using lasers and then analyze any deviations from this line. Laser measurement offers highly accurate and repeatable results, making it suitable for applications requiring strict tolerances. It is essential to consider the required level of accuracy, the size of the round bar, and the available resources and equipment when selecting a measurement method. It is also advisable to consult industry standards and guidelines to ensure compliance with specific tolerances and requirements relevant to your application.
- Q:Are steel round bars susceptible to cracking?
- Yes, steel round bars can be susceptible to cracking under certain conditions. Cracking can occur due to factors such as excessive stress, improper handling, or poor manufacturing processes. However, the susceptibility to cracking can be minimized by using high-quality steel, proper heat treatment, and careful handling and installation techniques.
- Q:What are the different types of surface treatments for steel round bars?
- There are several types of surface treatments commonly used for steel round bars. These include hot-dip galvanizing, electroplating, painting, powder coating, and black oxide coating. Each treatment offers specific benefits and is chosen based on the desired level of corrosion resistance, aesthetics, and durability required for the application.
- Q:What are the different types of steel round bar surface finishes for improved aesthetics?
- There are several different types of steel round bar surface finishes that can be used to enhance the aesthetic appeal of the material. These finishes are often chosen based on the desired look and feel of the steel, as well as the intended application. Some of the most common surface finishes for steel round bars include: 1. Polished: This finish involves a series of abrasive processes that result in a smooth, reflective surface. It is commonly used in applications that require a high level of visual appeal, such as architectural structures or decorative pieces. 2. Brushed: This finish is achieved by brushing the steel surface with a wire brush or abrasive pad, creating a textured appearance. It provides a more subdued and contemporary look, and is often used in modern architectural designs or furniture. 3. Satin: This finish is similar to brushed, but with a finer texture. It creates a smooth and matte appearance, making it a popular choice for applications that require a sophisticated and elegant look, such as luxury fixtures or appliances. 4. Hammered: This finish involves creating a series of small dents or dimples on the surface of the steel, giving it a textured and rustic appearance. It is commonly used in applications that require a unique and artistic look, such as handrails or decorative accents. 5. Etched: This finish is achieved by chemically treating the steel surface to create a pattern or design. It allows for intricate and detailed designs, making it a popular choice for applications that require personalized or branded elements, such as signage or logos. 6. Powder-coated: This finish involves applying a layer of powdered paint to the steel surface and then baking it to create a durable and vibrant coating. It provides a wide range of color options and is often used in applications that require a decorative and long-lasting finish, such as outdoor furniture or architectural elements. Overall, the choice of steel round bar surface finish depends on the desired aesthetic outcome and the specific requirements of the application. Different finishes can enhance the visual appeal of the steel, making it suitable for various industries and design purposes.
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Forged Alloy Steel AISI 4140 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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