Round Bar Steel Bar EN8 EN9 Special Steel

Round Bar Steel Bar EN8 EN9 Special Steel System 1

Round Bar Steel Bar EN8 EN9 Special Steel

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

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Product information:

1. Grade: Q235, SAE1020, SAE1040,SAE1045, 20Cr/SAE5120, 40Cr/SAE5140,

SCM440/SAE4140/42CrMo, SS400

2. Size: 8mm--100mm

3. Shape: flat bar, round bar, hexagonal bar, square bar, and so on.

4. Payment Terms: T/T, L/C.

5. MOQ: 5MT

6. Delivery terms: FOB or CIF

7. Shipment time: 35days or according to the qty.

8. Advantages: fast delivery, full-size, large inventories and accurate precision.

Chemical Composition:

STEEL GRADE	Similar Brand			Chemical Composition(%)
GB	AISI SAE	JIS	DIN	C	Si	Mn	Cr	Mo	Ni(≤)	P(≤)	S(≤)
20	1020	S20C	CK22	0.17-0.24	0.17-0.37	0.35-0.65	0.25	/	0.25	0.035	0.035
45	1045	S45C	CK45	0.42-0.50	0.17-0.37	0.50-0.80	0.25	/	0.25	0.035	0.035
15CrMo	4115	SCM415	15CrMo5	0.12-0.18	0.17-0.37	0.40-0.70	0.80-1.10	0.40-0.55	0.30	0.035	0.035
30CrMo	4130	SCM430	25CrMo4	0.26-0.34	0.17-0.37	0.40-0.70	0.80-1.10	0.15-0.25	0.030	0.035	0.035
42CrMo	4140	SCM440	42CrMo4	0.38-0.45	0.17-0.37	0.50-0.80	0.90-1.20	0.15-0.25	0.030	0.035	0.035

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Round Bar Steel Bar EN8 EN9 Special Steel

Shipping

1. FedEx/DHL/UPS/TNT for samples, Door-to-Door;

2. By Air or by Sea for batch goods, for FCL; Airport/ Port receiving;

3. Customers specifying freight forwarders or negotiable shipping methods!

Delivery Time: 3-7 days for samples; 5-25 days for batch goods.

Payment Terms

1.Payment: T/T, L/C, Western Union, MoneyGram,PayPal; 30% deposits; 70% balance before delivery.

2.MOQ: 1pcs

3.Warranty : 3 years

4.Package Informations: 1) EXPORT, In 20 feet (GW 25 ton) or 40 feet Container (GW 25 ton)

2)as customer's requirement

Why choose us?

(1) The leading exporter in China special steel industry.

(2) Large stocks for various sizes, fast delivery date.

(3) Good business relationship with China famous factories.

(4) More than 7 years steel exporting experience.

(5) Good after-sales service guarantee.

Q: How does special steel perform in cryogenic ductility?: Special steel exhibits excellent performance in terms of cryogenic ductility. Cryogenic ductility refers to a material's ability to retain its strength and flexibility even at extremely low temperatures. Special steels are engineered specifically to endure harsh conditions, including cryogenic temperatures, making them suitable for applications such as LNG storage tanks, aerospace components, and superconductors. The composition of special steel is one of the key reasons for its exceptional cryogenic ductility. Generally, special steels are alloyed with elements like nickel, chromium, and molybdenum, which enhance their mechanical properties and resistance to low temperatures. These alloying elements provide the steel with increased strength, toughness, and resistance to brittle fracture, even in extremely cold environments. Moreover, special steels go through rigorous testing and quality control measures to ensure their performance in cryogenic conditions. This involves testing for parameters such as impact toughness, fracture toughness, and notch toughness, which are critical in assessing a material's ability to withstand brittle failure at low temperatures. Additionally, the manufacturing processes employed for special steel contribute to its excellent cryogenic ductility. Methods like vacuum induction melting and controlled cooling are often utilized to produce special steels. These techniques aid in eliminating impurities and improving the material's microstructure. This refined microstructure enhances the steel's ductility, enabling it to retain its mechanical properties even in cryogenic temperatures. In conclusion, special steel exhibits exceptional performance in terms of cryogenic ductility due to its meticulously designed composition, stringent testing, and advanced manufacturing processes. These factors make it a dependable and preferred choice for various industries that require materials capable of withstanding extreme cold conditions while maintaining strength and flexibility.

Q: What are the requirements for special steel used in robotic applications?: Optimal performance and reliability of robotic applications necessitates special steel that meets specific key requirements. These requirements encompass: 1. Exceptional strength: The steel utilized in robotic applications must possess outstanding strength properties to endure the stresses and loads encountered during robotic operations. It should exhibit superior tensile and yield strength to ensure structural integrity and prevent failure when subjected to heavy loads. 2. Resistance to wear: The steel employed in robotic applications should demonstrate high resistance to wear, enabling it to withstand repetitive motions, sliding, and abrasive contact with different surfaces. This characteristic minimizes wear and tear, thereby extending the lifespan of robotic components. 3. Protection against corrosion: Robotic applications often involve exposure to diverse environments, including moisture, chemicals, and other corrosive agents. Consequently, the special steel employed must possess excellent corrosion resistance to prevent degradation and maintain optimal performance over time. 4. Toughness: Good toughness is essential for special steel, allowing it to absorb energy and resist fracture or cracking. This attribute is crucial to ensure that the steel can withstand sudden shocks or impacts without catastrophic failure, thereby enhancing the safety and reliability of the robotic system. 5. Machinability: Robotic components often necessitate intricate shapes and precise dimensions. Therefore, the special steel used must exhibit good machinability, enabling easy cutting, shaping, and forming without excessive tool wear or manufacturing difficulties. 6. Heat resistance: Some robotic applications involve exposure to high temperatures, such as in welding or metalworking processes. Hence, it is imperative for the special steel to possess good heat resistance, maintaining its mechanical properties and structural integrity even under elevated temperatures. 7. Magnetic properties: Certain robotic applications may require non-magnetic steel to prevent interference with electromagnetic sensors or systems. Consequently, special steel with low magnetic permeability is often preferred for such applications. By fulfilling these requirements, special steel employed in robotic applications can deliver the necessary strength, durability, and performance essential for efficient and reliable robotic operations across various industries, including manufacturing, healthcare, and exploration.

Q: What are the different automotive grades of special steel?: There are several different automotive grades of special steel, including stainless steel, high-strength steel, advanced high-strength steel, and ultra-high-strength steel. These grades offer varying levels of corrosion resistance, durability, and strength, making them suitable for different automotive applications.

Q: What are the applications of special steel in the oil and gas manufacturing process?: Special steel is used extensively in the oil and gas manufacturing process for various applications. It is commonly used in the construction of pipelines, vessels, and storage tanks due to its high strength and resistance to corrosion. Special steel is also utilized in drilling equipment, such as drill bits and casings, to withstand the harsh conditions encountered during drilling operations. Additionally, it is employed in the manufacturing of valves, fittings, and other critical components that need to endure high pressure and extreme temperatures. Overall, special steel plays a crucial role in ensuring the integrity and longevity of oil and gas infrastructure.

Q: How does special steel meet the requirements of specific industries?: Special steel meets the requirements of specific industries by offering superior mechanical properties, corrosion resistance, and heat resistance, which are essential for various applications. Its tailored composition and precise manufacturing processes ensure the steel can withstand extreme conditions, such as high temperatures, pressure, and harsh environments. Additionally, the versatility of special steel allows for customization to meet specific industry needs, resulting in enhanced performance, durability, and overall efficiency.

Q: What are the requirements for special steel used in transportation equipment manufacturing?: The requirements for special steel used in transportation equipment manufacturing are diverse and specific to the particular application in question. However, there are some common requirements that generally apply across the board. First and foremost, the special steel used in transportation equipment manufacturing needs to have high strength and durability. It must be able to withstand the rigorous demands of transportation, including heavy loads, vibrations, and impacts. Special steel with a high tensile strength and toughness is essential to ensure the structural integrity and safety of the transportation equipment. Secondly, the special steel must possess excellent corrosion resistance. Transportation equipment is exposed to various environmental conditions, including moisture, salt, chemicals, and extreme temperatures. Corrosion can lead to the deterioration and weakening of the steel, compromising the performance and longevity of the equipment. Therefore, using corrosion-resistant special steel is crucial to ensure the durability and reliability of transportation equipment. Additionally, the special steel used in transportation equipment manufacturing should have good weldability and formability. It must be able to be easily shaped, fabricated, and joined together through welding or other methods. This allows for the efficient production of complex structures and components, enabling the manufacturing of transportation equipment with intricate designs and specifications. Moreover, the special steel should also possess good fatigue resistance. Fatigue failure can occur due to repeated loading and unloading cycles, which is a common occurrence in transportation equipment. The special steel should be able to withstand this cyclic loading without undergoing fatigue cracks or failure, ensuring the long-term reliability of the equipment. Lastly, special steel used in transportation equipment manufacturing must comply with industry standards and regulations. Depending on the specific application and region, there may be certain legal requirements and safety standards that need to be met. These could include certifications, such as ISO, ASTM, or other relevant standards, to ensure the quality and performance of the steel. In summary, the requirements for special steel used in transportation equipment manufacturing include high strength, durability, corrosion resistance, good weldability and formability, fatigue resistance, and compliance with industry standards. Meeting these requirements is crucial to ensure the safety, reliability, and longevity of transportation equipment.

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: How is high-strength tool steel used in the production of heavy-duty tools?: High-strength tool steel is used in the production of heavy-duty tools due to its exceptional hardness, strength, and durability. This type of steel is capable of withstanding high loads and intense usage, making it ideal for tools that require strength and resilience. Its superior properties enable the production of heavy-duty tools such as drills, hammers, saws, and wrenches that can endure rigorous tasks and provide long-lasting performance.

Q: How does special steel play a role in the defense sector?: Special steel plays a crucial role in the defense sector due to its unique properties and characteristics that make it highly suitable for various applications. Firstly, special steel offers exceptional strength and durability, making it ideal for manufacturing military vehicles, armored personnel carriers, and tanks. These vehicles require materials that can withstand high impacts, resist deformation, and provide protection against enemy attacks. Additionally, special steel is used in the production of military aircraft and naval vessels. Its high strength-to-weight ratio allows for the construction of lightweight yet robust structures, enabling aircraft to carry heavy payloads and naval vessels to navigate through harsh conditions. Moreover, special steel's corrosion resistance properties make it suitable for marine environments, ensuring the longevity and reliability of naval assets. Furthermore, special steel is utilized in the production of weapons and ammunition. Its hardness and toughness attributes make it suitable for manufacturing firearm barrels, armor-piercing projectiles, and other critical components. Special steel's ability to withstand extreme pressures, temperatures, and impact forces ensures the accuracy, reliability, and effectiveness of military weaponry. Moreover, special steel is also employed in the defense sector for the production of communication and surveillance equipment. Its electromagnetic properties allow for the fabrication of radar systems, antennas, and electronic enclosures that are essential for military operations. Special steel's resistance to electromagnetic interference ensures the integrity and security of communication systems, enhancing the overall efficiency and effectiveness of defense operations. In summary, special steel plays a vital role in the defense sector by providing the necessary strength, durability, corrosion resistance, and electromagnetic properties required for various applications. Its utilization in military vehicles, aircraft, naval vessels, weapons, and communication equipment enhances the overall capabilities, effectiveness, and safety of defense forces, ensuring national security.

Q: How does mold steel resist wear and erosion?: Mold steel resists wear and erosion due to its high hardness and toughness properties. The steel is specifically designed to withstand the repetitive stress, abrasion, and impact that molds are subjected to during their operational lifespan. Additionally, mold steel is often treated with heat treatments or coatings to further enhance its resistance to wear and erosion, ensuring its durability and longevity in molding applications.

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