Special Steel JIS SCr440 Alloy Steel Round Bars

Special Steel JIS SCr440 Alloy Steel Round Bars System 1

Special Steel JIS SCr440 Alloy Steel Round Bars

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 20 m.t.

Supply Capability:: 10000 m.t./month

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Product information:

Standard				JIS G4053-2003
Grade				JIS SCr440
MOQ				1 Metric Ton
Diameter				8mm~1500mm
Length				6m,12m or as required.
Diameter Tolerance				As required
Condition of delivery				Hot rolled,Cold Rolled or as required.
Chemical Composition(%)
C	Si		Mn			P		S		Cr
0.37-0.44	0.17-0.37		0.50-0.80			≤0.035		≤0.035		0.80-1.10
Ni	Cu
≤0.30	≤0.030
Mechanical Properties(In Quenching and Tempering)
Tensile strength		Yield strength			Elongation		Reduction in Area		Impact		Hardness
(σb/MPa)		(σs/MPa)			(δ5/%)		(ψ/%)		(J)		(HB)
≥980		≥785			≥9		≥45		≥47		≤207

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Special Steel JIS SCr440 Alloy Steel Round Bars

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 high-temperature mechanical applications?: Special steel performs exceptionally well in high-temperature mechanical applications. Thanks to its unique composition and properties, such as high strength, excellent heat resistance, and thermal stability, special steel can withstand extreme temperatures without losing its structural integrity or mechanical properties. It exhibits minimal creep, oxidation, and deformation, ensuring reliable performance and durability in demanding high-temperature environments.

Q: What are the main factors affecting the tensile strength of special steel?: The main factors affecting the tensile strength of special steel include the composition of the alloy, the heat treatment processes used, the presence of impurities or defects, the grain size and structure, and the amount of cold work or strain hardening applied to the material. Additionally, factors such as the presence of residual stresses, the temperature at which the steel is tested, and the rate of loading can also influence the tensile strength of special steel.

Q: How does special steel contribute to the toughness of products?: Special steel contributes to the toughness of products in several ways. Firstly, special steel is known for its high strength and durability. It is manufactured using specific alloying elements and heat treatment processes, which enhance its mechanical properties and make it more resistant to wear and tear. This increased strength allows products made from special steel to withstand heavy loads, impacts, and harsh environments, making them tougher and less prone to breakage. Additionally, special steel has excellent corrosion resistance properties. This is achieved through the addition of specific alloying elements such as chromium and nickel, which form a protective layer on the surface of the steel, preventing rust and corrosion. The resistance to corrosion adds to the toughness of the products, as they can be used in corrosive environments without degradation or loss of performance. Special steel also offers improved heat resistance. It can withstand high temperatures without losing its structural integrity or mechanical properties. This is particularly important in industries such as aerospace, automotive, and energy, where components are exposed to extreme temperatures. The ability of special steel to maintain its toughness under high heat conditions adds to the overall reliability and longevity of the products. Furthermore, special steel can be customized to meet specific requirements. Manufacturers can tailor the composition and properties of the steel to suit the intended application. For example, different types of special steel alloys are used in the production of cutting tools, bearings, and structural components. By selecting the appropriate grade of special steel, manufacturers can optimize the toughness of their products, ensuring they can withstand the intended use and perform reliably. In conclusion, special steel contributes to the toughness of products through its high strength, corrosion resistance, heat resistance, and customizability. The unique properties of special steel make it an ideal material choice for a wide range of applications, where toughness and durability are crucial factors.

Q: Can special steel be used in marine applications?: Marine applications can indeed utilize special steel. This type of steel, also referred to as marine grade steel, is specifically engineered to endure the demanding conditions found in marine environments. It possesses exceptional qualities, including heightened resistance to corrosion, increased strength, and enhanced durability, which render it suitable for a wide range of marine applications. The construction of ships, offshore structures, and marine equipment commonly employs special steel. Its capacity to withstand corrosion from saltwater, chemicals, and other environmental factors makes it an excellent choice for marine applications. Additionally, special steel finds use in the production of propellers, shafts, and other components that necessitate high tensile strength and fatigue resistance. All in all, special steel proves to be a dependable and efficient material for marine applications due to its unique properties and ability to withstand the challenges presented by the marine environment.

Q: What is the composition of special steel?: The composition of special steel can vary depending on its intended use and the specific properties required. However, in general, special steel is typically an alloy of iron and carbon, with additional elements added to enhance its strength, toughness, corrosion resistance, or other desired characteristics. Some common elements that can be found in special steel compositions include chromium, nickel, manganese, molybdenum, vanadium, tungsten, and cobalt. These alloying elements are carefully selected and added in specific amounts to achieve the desired mechanical, physical, and chemical properties of the steel. The composition of special steel can be tailored to meet specific industry requirements, such as for applications in aerospace, automotive, oil and gas, or construction.

Q: What are the properties of stainless tool steel?: Stainless tool steel possesses several properties that make it highly desirable for various applications. Firstly, it exhibits excellent corrosion resistance due to its high chromium content, making it resistant to rust and tarnish. Secondly, it has high hardness and wear resistance, allowing it to retain its cutting edge and withstand heavy use without dulling or chipping easily. Moreover, stainless tool steel has good toughness, which means it can withstand impact and shock loads without fracturing. It also demonstrates good dimensional stability, meaning it maintains its shape and size even under extreme temperatures and mechanical stress. Lastly, stainless tool steel is known for its machinability and can be easily formed and fabricated into various shapes and sizes.

Q: How does special steel perform in high-temperature creep conditions?: Special steel is specifically designed and engineered to perform exceptionally well in high-temperature creep conditions. It exhibits remarkable resistance to deformation and maintains its mechanical properties even at elevated temperatures, making it highly reliable and suitable for applications that require stability and strength in such environments.

Q: Can special steel be heat treated?: Yes, special steel can be heat treated. Heat treatment is a common process used to enhance the properties and performance of steel, including special steel. It involves heating the steel to a specific temperature and then cooling it rapidly or slowly to achieve desired characteristics such as increased hardness, improved strength, or better resistance to wear and corrosion.

Q: What are the main applications of special steel in the defense equipment?: Special steel is widely used in defense equipment for its exceptional properties such as high strength, durability, and resistance to extreme conditions. Some of the main applications of special steel in defense equipment include the manufacturing of armored vehicles, tanks, submarines, and naval vessels. It is also used in the production of aircraft carriers, fighter jets, and helicopters, where its strength and resistance to corrosion are crucial. Additionally, special steel is utilized in the construction of ballistic protection systems, missile components, and firearms, enhancing their performance and ensuring their reliability in critical defense operations.

Q: How does special steel perform in terms of hardness?: Special steel performs exceptionally well in terms of hardness. Due to its unique alloy composition and precise manufacturing process, it exhibits superior hardness compared to conventional steel. This enhanced hardness allows special steel to withstand high pressures, resist wear and tear, and provide excellent performance in demanding applications across various industries.

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