Sea 9260 Spring Steel Bar

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
30 m.t.
Supply Capability:
120000 m.t./month
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Sea 9260 Spring Steel Bar        


Specification 

1, Diameter: 8mm-250mm rounds

                     5mm-9mm rods

2, Length: 2m, 3m, 5.8m, 6m or customized

3, Standard: GB, ASTM, AISI, SAE, DIN, JIS, EN

                     OEM technology - send detailed technical parameters for accurate quotation.

2, Produce Process: smelt iron - EAF smelt billet - ESR smelt billet - 

                                  hot rolled or forged to get the steel round bar and plate

3, Heat Treatment: annealing, normalizing, tempering, quenching

4, Surface Treatment: Black, Polished, Galvanized

5, Quality Assurance: We accept third party inspection for all orders. 

     You can ask testing organizations such as SGS, BV, etc. to test our products before shipping.

Chemical Composition (%)   

CSiMnSP
CrNiCu
0.52-0.601.50-2.000.60-0.90≤0.035
≤0.035
≤0.35≤0.35
≤0.20

                                                                 

Products Show 

 


Product Overviews 

Product NameTypical GradesDiameter(mm)Standard adopted
Carbon Steel20 (1020/S20C/C22)Ø16-Ø300

 

 

GB/SAE/JIS/DIN

 

40 (1040/S40C/C40)
45 (1045/S45C/C45)
Bearing SteelGCr9 (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 Steel20CrNiMoØ16-Ø600
20CrMn(5115/SMnC420/20MnCr5)
20CrNiMo(8620/SNCM220/20CrMiMo2)

 

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:
Some of the different heat treatment processes used for steel round bars include annealing, quenching, tempering, normalizing, and hardening. Each process involves heating and cooling the steel to alter its properties such as hardness, strength, and ductility. Annealing involves heating the steel and slowly cooling it to relieve internal stresses and improve machinability. Quenching involves rapidly cooling the steel to increase its hardness. Tempering is a process that involves reheating the quenched steel to reduce brittleness and improve toughness. Normalizing is similar to annealing but involves air cooling instead of slow cooling. Hardening is a process that involves heating the steel and then rapidly cooling it to increase its hardness and strength.
Q:
Steel round bars are commonly used in the manufacturing of hydraulic cylinders as they provide the necessary strength and durability required for these high-pressure systems. These bars are machined, shaped, and precision-ground to specific dimensions, which are then used to create the cylinder barrel, piston, and other critical components. The steel round bars play a crucial role in ensuring the structural integrity and overall performance of the hydraulic cylinder, allowing it to withstand the forces and pressures involved in various industrial and mobile applications.
Q:
The maximum length of a steel round bar can vary depending on several factors such as the diameter of the bar, the manufacturing capabilities of the steel supplier, and the transportation limitations. Generally, steel round bars are produced in standard lengths that range from 6 to 12 meters (20 to 40 feet). However, it is possible to manufacture longer bars through special processes or by joining multiple bars together using welding techniques. In some cases, steel round bars can be custom-made to exceed standard lengths, but this would require specific arrangements with the supplier and considerations for logistics and handling during transportation. Ultimately, the maximum length of a steel round bar is determined by practical limitations and the specific requirements of the project or application.
Q:
Some of the different surface treatments available for carbon steel round bars include hot dip galvanizing, electroplating, black oxide coating, powder coating, and painting. These treatments help to improve the appearance of the steel, protect it from corrosion, and enhance its durability.
Q:
There are several different surface treatments available for steel round bars, each designed to enhance the material's properties and improve its overall performance. Some common surface treatments for steel round bars include: 1. Hot-dip galvanizing: This process involves immersing the steel round bars in a bath of molten zinc, forming a protective coating on the surface. Hot-dip galvanizing provides excellent corrosion resistance, making it suitable for outdoor applications or environments where the steel is exposed to moisture. 2. Electroplating: Electroplating is the process of depositing a thin layer of metal onto the surface of the steel round bars using an electric current. This treatment can provide enhanced corrosion resistance, improved appearance, or specific functional properties, depending on the metal used for electroplating. 3. Powder coating: Powder coating involves applying a dry powder paint to the surface of the steel round bars, which is then cured by heat to form a protective and decorative coating. This treatment offers excellent durability, resistance to corrosion, and a wide range of color options. 4. Black oxide coating: Black oxide coating is a chemical treatment that creates a dark, matte finish on the surface of the steel round bars. It provides moderate corrosion resistance and enhances the material's appearance, making it suitable for decorative or non-reflective applications. 5. Chrome plating: Chrome plating is a process of electroplating a thin layer of chromium onto the surface of the steel round bars. This treatment enhances corrosion resistance, improves wear resistance, and provides a shiny, reflective finish. 6. Nitriding: Nitriding is a heat treatment process that diffuses nitrogen into the surface of the steel round bars, forming a hardened layer. This treatment improves the material's hardness, wear resistance, and fatigue strength, making it suitable for applications requiring high strength and durability. 7. Anodizing: Anodizing is commonly used for aluminum, but it can also be applied to steel round bars. This electrolytic process creates a protective oxide layer on the surface, enhancing corrosion resistance and providing a decorative and durable finish. These are just a few examples of the different surface treatments available for steel round bars. The choice of treatment depends on the specific requirements of the application, such as corrosion resistance, wear resistance, appearance, or functional properties needed.
Q:
The tolerances of steel round bars can differ based on the specific requirements of the application and manufacturing process. Generally, steel round bars have specified tolerances for diameter, straightness, and length. For diameter tolerance, it is usual to find tolerances ranging from +/- 0.001 inches to +/- 0.005 inches. This means that the actual diameter of the steel round bar can deviate within this range from the specified diameter. The size and grade of the bar determine the specific tolerance. Straightness tolerance refers to the permissible deviation in the straightness of the bar. Typically, it is specified as a maximum deviation per unit length, such as 0.125 inches per foot. This ensures that the bar remains straight and within acceptable limits when measured along its length. Length tolerance determines the allowable variation in the overall length of the round bar. It can range from +/- 0.125 inches to +/- 0.5 inches, depending on the size and grade of the bar. This ensures that the bar meets the required length specifications. It is important to note that these tolerances can vary based on industry standards, customer specifications, and the manufacturing method employed. Moreover, certain applications may have stricter tolerance requirements, particularly in industries like aerospace or automotive where precision is crucial. To summarize, the tolerances for steel round bars encompass diameter, straightness, and length. The specific tolerances depend on the size, grade, and application of the round bar, as well as any relevant industry standards or customer specifications.
Q:
The maximum carbon content allowed for steel round bars can vary depending on the specific grade or specification of steel being used. However, in general, most standard steel round bars have a maximum carbon content of around 0.25% to 0.30%. This level of carbon content helps to maintain a balance between strength and ductility, ensuring that the steel is both strong enough to withstand load-bearing applications and flexible enough to be easily formed or machined. It is important to note that some specialized steels or specific applications may have different maximum carbon content requirements, so it is always essential to refer to the relevant specifications or standards for accurate and specific information.
Q:
Staircases can indeed be made using steel round bars. These bars are widely utilized in the construction sector for various purposes, including the fabrication of staircases. They possess robustness, longevity, and exceptional structural support, rendering them an ideal option for staircases. Steel round bars can be employed to shape and structure the staircase's framework, ensuring stability and safety. Moreover, they can be easily molded and welded to create diverse designs and styles for the staircase, allowing for flexibility and customization during construction. All in all, steel round bars are a dependable and popular choice for constructing staircases due to their strength, durability, and versatility.
Q:
To determine the weight of a steel round bar based on its volume and density, one can utilize the following formula: Weight = Volume x Density Initially, ascertain the volume of the round bar. The volume of a cylinder, which represents the shape of a round bar, can be computed using the subsequent equation: Volume = π x (diameter/2)^2 x length Here, π denotes a mathematical constant that is roughly equivalent to 3.14159, and the diameter and length are the measurements of the round bar. Once the volume is determined, it is necessary to know the density of the steel. The density of steel may differ depending on the type and grade of steel employed. Typically, density is measured in kilograms per cubic meter (kg/m^3) or pounds per cubic inch (lbs/in^3). The density of steel can be found in reference materials or on the internet. Ultimately, the volume should be multiplied by the density to acquire the weight of the steel round bar. Ensure that the units of volume and density are consistent. For instance, if the volume is given in cubic inches and the density is in pounds per cubic inch, the weight will be expressed in pounds. Conversely, if the volume is in cubic meters and the density is in kilograms per cubic meter, the weight will be in kilograms. It is essential to note that this calculation assumes that the round bar is entirely composed of steel and possesses a uniform density throughout its volume. Moreover, this calculation disregards any other factors that may influence the weight, such as impurities or surface finish.
Q:Cold drawn steel wire is a round bar or thread steel in Construction Engineering?
Cold drawn steel wire should be the same as round steel and thread steel! Their forming process and the meaning of the place used are different, and the quota is also different, cold drawn steel wire is cold drawn steel wire, strictly speaking, there is no mix together.

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