Grade S235JR CNBM Carbon Steel Round Bar with High Quality
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 m.t.
- Supply Capability:
- 10000 m.t./month
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Item specifice
Type:
Carbon Steel
Shape:
Steel Round Bar
Product Description
S235jr Steel Round Bars/round ba
Grade:SS400, A36, Q235
Size:8mm-35mm
Technique: hot rolled
Certification: CE,SGS,ISO
Chemical Composition
C | Si | Mn | P | S | S |
0.14~0.22% | ≤0.30 | 0.30~0.65 | ≤0.045 | ≤0.050 | ≤0.050 |
Application:
Mold bottom,
Plastic mold
Construction machinery parts
Automobile parts
Security grills
Screens
Construction
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.
Packing & Delivery
1. Packaging: seaworthy package or as required
2. Delivery: 35-45 days or based on quantity
Products Show
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.
- Q:How is case-hardening steel used in the production of gears and camshafts?
- Case-hardening steel is used in the production of gears and camshafts to enhance their strength and durability. This process involves heating the steel to a high temperature and then rapidly cooling it, creating a hard outer layer while maintaining a softer, more ductile core. This hardened surface layer provides resistance to wear, abrasion, and fatigue, ensuring the gears and camshafts can handle the demands of their respective applications.
- Q:Can special steel be used in the manufacturing of tools?
- Yes, special steel can be used in the manufacturing of tools. Special steels, such as high-speed steel, tool steel, and alloy steel, are specifically designed to have exceptional strength, hardness, and durability properties. These characteristics make special steel ideal for tool manufacturing, as it can withstand high temperatures, resist wear and corrosion, and provide the necessary toughness required for various cutting, shaping, and drilling applications.
- Q:How does special steel contribute to the marine machinery industry?
- Special steel contributes to the marine machinery industry by offering high strength, corrosion resistance, and excellent mechanical properties. This enables the construction of durable and reliable components such as propeller shafts, rudder stocks, and engine parts that can withstand harsh marine environments. The use of special steel enhances the performance and longevity of marine machinery, ensuring efficient and safe operations at sea.
- Q:What are the different non-destructive evaluation techniques used for special steel?
- Some of the different non-destructive evaluation techniques used for special steel include ultrasonic testing, magnetic particle inspection, liquid penetrant testing, radiographic testing, and eddy current testing. These techniques allow for the detection of defects or flaws in the steel without causing any damage to the material.
- Q:What are the different methods of improving the impact toughness of special steel?
- There are multiple ways to increase the impact toughness of special steel. Here are a few commonly utilized techniques: 1. Heat Treatment: Heat treatment is a highly effective method that involves subjecting the steel to specific heating and cooling processes. For example, quenching and tempering can significantly enhance the impact toughness of steel. Quenching rapidly cools the heated steel in a liquid medium like oil or water, while tempering involves reheating the quenched steel to a specific temperature and then slowly cooling it. This process refines the steel's microstructure, making it more resistant to fractures and improving its impact toughness. 2. Alloying: Another method is alloying, which entails adding specific elements to the steel composition. Elements like nickel, chromium, and molybdenum can enhance the toughness of steel by modifying its microstructure and improving its resistance to impact. These alloying elements reduce the formation of brittle phases and enhance the steel's ductility. 3. Grain Refinement: The grain size of steel is crucial in determining its impact toughness. By refining the grain size, the steel can exhibit improved toughness. This can be achieved through techniques like controlled rolling or severe plastic deformation. These methods break down large grains and promote the formation of smaller, more uniform grains, resulting in enhanced toughness. 4. Shot Peening: Shot peening is a surface treatment technique that involves bombarding the steel surface with small metallic or ceramic shots. This process induces compressive stress on the surface, reducing the likelihood of crack propagation and improving impact toughness. 5. Welding Techniques: When welding special steel, specific techniques can be employed to enhance its impact toughness. Preheating the steel before welding and controlling welding parameters like heat input and cooling rate help reduce the formation of brittle phases and improve the toughness of the welded joint. It's important to consider various factors like the desired level of toughness, the steel composition, and the intended application when selecting the appropriate method for improving the impact toughness of special steel. A comprehensive understanding of the steel's properties and specific requirements is crucial in determining the most suitable method for enhancing its impact toughness.
- Q:What are the different types of high-speed steel?
- There are several different types of high-speed steel, including M1, M2, M42, and T1. These variations have different compositions and properties, such as varying levels of tungsten, molybdenum, and vanadium, which affect their hardness, toughness, and heat resistance.
- Q:What are the properties of duplex stainless steel?
- Duplex stainless steel possesses a combination of excellent mechanical properties, including high strength and corrosion resistance. It offers good toughness and ductility, making it suitable for a wide range of applications. Moreover, duplex stainless steel exhibits a higher resistance to stress corrosion cracking and pitting corrosion compared to other types of stainless steel. Additionally, it has a good weldability, enabling it to be easily fabricated and used in various industries such as oil and gas, chemical processing, and marine environments.
- Q:How is alloy steel different from carbon steel?
- Alloy steel is different from carbon steel because it is made by adding other elements to carbon steel, such as chromium, nickel, or manganese, to enhance its properties. This makes alloy steel stronger, more resistant to corrosion, and better suited for specific applications compared to carbon steel, which is primarily composed of iron and carbon.
- Q:What are the applications of special steel in the agriculture sector?
- Special steel has numerous applications in the agriculture sector. It is used in the manufacturing of machinery and equipment such as plows, cultivators, and harvesters, due to its high strength and durability. Special steel is also utilized in the production of storage tanks and silos, providing protection against corrosion and ensuring the safety of agricultural products. Additionally, it is employed in the fabrication of irrigation systems, fencing, and animal enclosures, offering longevity and resistance to wear and tear. Overall, special steel plays a crucial role in improving productivity and efficiency in various agricultural operations.
- Q:How is special steel used in the manufacturing of bearings?
- Due to its unique properties, special steel is utilized in the production of bearings, which are vital components employed in various industries. These bearings serve the purpose of reducing friction between moving parts, promoting smooth motion, and supporting heavy loads. The utilization of special steel guarantees exceptional performance and longevity. For the production of bearings, the preferred choice of special steel includes stainless steel and high-carbon chromium steel. This selection is based on the remarkable strength, hardness, and resistance to corrosion that these types of steel possess. These properties enable the bearings to endure heavy loads, withstand wear and tear, and operate effectively in challenging environments. The manufacturing process for bearings involves shaping and heat treatment. Initially, special steel is melted and cast into the desired form, typically a ring or a ball. Subsequently, the steel undergoes various heat treatment procedures like annealing, quenching, and tempering to enhance its hardness, toughness, and overall mechanical properties. This heat treatment ensures that the steel is adequately hardened to endure the stress and friction it will encounter during operation. Once the steel has undergone appropriate heat treatment, it is machined and ground to attain precise dimensions and smooth surfaces. This step is vital to ensure that the bearings possess the necessary tolerance and can rotate smoothly without any interference. Special steel's machinability and grindability simplify the achievement of the required accuracy and surface finish. Following the machining process, the bearings can be assembled with other components and lubricated to ensure proper lubrication and minimize friction. Special steel's corrosion resistance is particularly valuable at this stage as it shields the bearings from rust and degradation caused by moisture or aggressive environments. In conclusion, special steel is chosen for the production of bearings due to its exceptional strength, hardness, and corrosion resistance. These properties enable the bearings to withstand heavy loads, resist wear, and function effectively in challenging conditions. With the aid of its excellent machinability and grindability, special steel guarantees the attainment of the necessary precision and surface finish. Overall, special steel plays a pivotal role in the production of high-quality bearings that enable efficient and reliable motion in various industries.
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Grade S235JR CNBM Carbon Steel Round Bar with High Quality
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 m.t.
- Supply Capability:
- 10000 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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