JIS Hot Rolled Structural Steel Bar SCM440
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 50000 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,BV,IBR,RoHS,CE,API,BSI,UL
Thickness:
16-300mm
Length:
6-12mm
Net Weight:
2mt
JIS Hot Rolled Structural Steel Bar SCM440
Product Description of JIS Hot Rolled Structural Steel Bar SCM440
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 JIS Hot Rolled Structural Steel Bar SCM440
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 JIS Hot Rolled Structural Steel Bar SCM440
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 JIS Hot Rolled Structural Steel Bar SCM440
Packing and Delivery:
Packing in bundle package, or as customer's requirements.
Delivery Detail: 45 days after receiving the deposit.
Usage and Applications of JIS Hot Rolled Structural Steel Bar SCM440
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:Can steel round bars be used for making steering components?
- Yes, steel round bars can be used for making steering components. Steel is a commonly used material for steering system components due to its high strength and durability. Steel round bars can be machined or forged into various shapes and sizes to create steering components such as steering shafts, tie rods, and drag links. These components need to be able to withstand the forces and stresses exerted on them during steering and steel's properties make it suitable for this purpose. Additionally, steel is readily available and cost-effective, making it a popular choice for manufacturing steering components in various industries, including automotive and aerospace.
- Q:What is the difference between a rough turned and a polished steel round bar?
- A rough turned steel round bar has undergone a preliminary machining process that removes surface imperfections and excess material, providing a slightly smoother finish. On the other hand, a polished steel round bar has undergone further polishing or grinding processes to achieve a much smoother and aesthetically appealing surface finish.
- Q:Can steel round bars be used for making storage tanks?
- Storage tanks can indeed be made using steel round bars. Steel is a highly versatile material that is extensively used across various industries, including the manufacturing of storage tanks. The utilization of steel round bars is renowned for their exceptional strength, durability, and resistance to corrosion, rendering them suitable for the storage of a wide array of substances, such as liquids and gases. The circular shape of these bars enables effortless fabrication and assembly, thereby guaranteeing the structural integrity of the storage tank. Moreover, steel round bars can be effortlessly welded or bolted together, allowing for customization and flexibility in tank design. In summary, due to their reliability, longevity, and capacity to endure high pressure and extreme environmental conditions, steel round bars are a favored option for the production of storage tanks.
- Q:What are the different types of steel round bars used in the manufacturing of springs?
- There exists a variety of steel round bars that are commonly utilized in the production of springs. These types include: 1. Carbon steel round bars: This particular type of steel is frequently employed for springs and is characterized by its high carbon content, which usually falls within the range of 0.60% to 0.95%. Carbon steel round bars possess commendable strength and durability, rendering them appropriate for a wide array of spring applications. 2. Alloy steel round bars: These are formed by incorporating alloying elements like chromium, manganese, nickel, or vanadium into carbon steel. Alloy steel round bars offer improved mechanical properties, including heightened strength, toughness, and resistance to wear and corrosion. They are commonly employed in demanding or high-performance spring applications. 3. Stainless steel round bars: These bars are resistant to corrosion and contain a significant amount of chromium (usually exceeding 10.5%). Stainless steel round bars are highly sought after for springs that necessitate exceptional resistance to rust, oxidation, and chemicals. They find frequent use in applications where hygiene, cleanliness, and visual appeal are of utmost importance, such as in the food and medical sectors. 4. Spring steel round bars: These bars are specifically designed for spring production. They possess a unique combination of properties, including high yield strength, good fatigue resistance, and excellent elasticity. Spring steel round bars are typically crafted from either carbon steel or alloy steel, depending on the specific requirements of the application. It is crucial to select the appropriate steel round bar based on factors such as the intended application, load requirements, environmental conditions, and desired spring performance. Seeking guidance from a materials engineer or spring manufacturer can aid in determining the most suitable steel round bar for a particular spring manufacturing project.
- Q:What is the difference between a cold finished and a hot rolled steel round bar?
- The main difference between a cold finished and a hot rolled steel round bar lies in the manufacturing process. Cold finished steel round bars undergo a process called cold drawing, where they are pulled through a die at room temperature to achieve the desired shape and size. This process enhances the precision and surface finish of the steel, resulting in a smoother and more polished appearance. On the other hand, hot rolled steel round bars are formed by heating the steel billet or ingot to high temperatures and rolling it through a series of rollers, which creates the desired shape. Hot rolled steel round bars typically have a rougher surface texture and may contain imperfections due to the rapid cooling process. Overall, cold finished steel round bars are known for their superior dimensional accuracy and surface quality, while hot rolled steel round bars are more cost-effective and suitable for applications where a smooth finish is not critical.
- Q:What are the cost considerations for steel round bars?
- Cost considerations for steel round bars can vary depending on several factors. Firstly, the type and grade of steel used in the production of the round bars can greatly impact the cost. Different types of steel, such as carbon steel, alloy steel, or stainless steel, have varying costs due to differences in their composition and properties. Higher grade steel with superior strength and durability will generally be more expensive than lower grade options. Secondly, the size and dimensions of the round bars will also affect the cost. Larger diameter and length of the bars will require more raw material and additional processing, resulting in higher costs. Additionally, specialized shapes or custom sizes may require extra manufacturing steps or tooling, which can increase the overall price. The quantity or volume of round bars ordered can also influence the cost. Bulk orders typically benefit from economies of scale, allowing for reduced unit costs. Furthermore, longer-term contracts or partnerships with suppliers can result in better pricing agreements. Transportation and logistics expenses should also be taken into account. The cost of shipping steel round bars can vary depending on the distance, mode of transportation, and handling requirements. International shipping, for instance, may involve additional customs duties and taxes. Lastly, market conditions and fluctuations in the steel industry can impact the cost of round bars. Factors such as supply and demand, raw material costs, and currency exchange rates can all influence the final price. It is important to stay updated with market trends and work closely with suppliers to negotiate favorable pricing. Considering these various factors, it is crucial to conduct thorough research, compare quotes from multiple suppliers, and evaluate the quality-to-price ratio before making a decision. This will help ensure that the cost of steel round bars aligns with your budget and meets your specific requirements.
- Q:What is the maximum carbon content allowed for steel round bars?
- The carbon content allowed for steel round bars can vary depending on the specific grade or specification of steel used. However, most standard steel round bars typically have a carbon content ranging from approximately 0.25% to 0.30%. This carbon content level helps maintain a balance between strength and ductility, ensuring that the steel is sufficiently strong for load-bearing applications while also being easily formable or machinable. It is crucial to note that certain specialized steels or specific applications may have distinct maximum carbon content requirements. Therefore, it is always necessary to refer to the relevant specifications or standards for precise and accurate information.
- Q:How do you straighten a bent steel round bar?
- To straighten a bent steel round bar, you can follow a few simple steps: 1. Assess the bend: Determine the severity and location of the bend in the round bar. This will help you decide which method to use for straightening. 2. Heat the bar: If the bend is not too severe, you can heat the bar using a blowtorch or a forge. Apply heat evenly across the bent area until it becomes red hot. Heating the bar will make it more malleable and easier to straighten. 3. Apply pressure: Once the bar is heated, you can use a vice or a hydraulic press to apply pressure on the bent section. Gradually increase the pressure until the bar starts to straighten. Be careful not to apply excessive force as it may cause the bar to break. 4. Use leverage: If the bend is not too severe, you can also use leverage to straighten the bar. Secure one end of the bar in a vice or clamp and apply force to the bent section in the opposite direction. Slowly and gently increase the force until the bar straightens. 5. Cold bending: If the bend is minor, you may be able to straighten the bar without applying heat. This method involves using a hammer or mallet to gently tap the bent area in the opposite direction until it straightens. Be cautious not to strike the bar too hard, as it may create new bends or fractures. 6. Check for straightness: After applying the straightening method, carefully inspect the bar to ensure it is straight. If there are any remaining bends, repeat the process until the bar is completely straight. Remember to wear appropriate safety gear, such as gloves and eye protection, when working with steel bars. It is also advisable to consult a professional if you are unsure about the straightening process or if the bar is severely bent.
- Q:The difference between round steel and screw steel
- The difference between round bar and round bar is that the surface has longitudinal ribs and transverse ribs, usually with two longitudinal ribs and transverse ribs uniformly distributed along the length direction. The rebar is a kind of small section steel, mainly used for the skeleton of reinforced concrete construction members. In use, some mechanical strength, bending deformation property and welding performance are required. The raw steel billet for the production of threaded steel is carbon structural steel or low alloy structural steel which is treated by calm melting, and the finished steel bar is delivered in hot rolling forming, normalizing or hot rolling state.
- Q:What are the advantages of using alloy steel round bars?
- There are several advantages of using alloy steel round bars. Firstly, alloy steel has superior strength and hardness compared to regular steel, making it more durable and resistant to wear and tear. Secondly, alloy steel round bars offer excellent corrosion resistance, making them suitable for use in various environments, including marine and chemical industries. Additionally, alloy steel can withstand high temperatures, making it ideal for applications that involve heat or extreme conditions. Lastly, alloy steel round bars can be easily machined and fabricated, allowing for versatility in design and customizations.
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JIS Hot Rolled Structural Steel Bar SCM440
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 50000 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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