Special Steel Gear Steel SCM420H Round Bar

Special Steel Gear Steel SCM420H Round Bar System 1

Special Steel Gear Steel SCM420H Round Bar

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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 Comparison

GB	DIN	JIS	NF	BS	AISI
20CrMoH	25CrMo4	SCM420	25CrMo4	25CrMo4	4118

2. Specification

Commodity	SCM420H Round bar
diameter	10-300mm
Length	3000-15000mm
Productive Technology	Hot-Rolled
Tolerance	+/-0.15mm
Application	Gear. Axis. Ring. Gears shafts. Sliding bearing spindle beams and Clutch etc
	C	0.17-0.23
Chemical Composition of Material	Si	0.15-0.35
	Mn	0.55-0.90
	P	0.030
	S	0.030
	Cr	0.85-1.25
	Ni	0.030
	Cu	0.030
Mechanical Property	Tensile Strength	1080
	Yield Strength	835
	Extension	≥10
	Hardness	217HB

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Special Steel Gear Steel SCM420H Round Bar

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:What are the applications of special steel in the nuclear supply chain?: Special steel has numerous applications in the nuclear supply chain. It is used in the construction of nuclear reactors, where it provides the necessary strength and resistance to extreme temperatures and pressures. Special steel is also utilized in the manufacturing of fuel rods, containment vessels, and other critical components that require high durability and corrosion resistance. Additionally, special steel is employed in the production of storage containers for nuclear waste and in the construction of transportation casks for the safe transport of radioactive materials.

Q:How does special steel perform in high-vibration environments?: Special steel is specifically designed to perform well in high-vibration environments. Its unique composition and properties allow it to withstand and absorb vibrations, reducing the risk of structural damage, fatigue, and failure. Special steel's high strength, durability, and resistance to corrosion make it an ideal choice for applications where vibrations are a concern, ensuring reliable and long-lasting performance.

Q:What are the different methods of surface passivation for special steel?: There are several methods of surface passivation for special steel, including chemical passivation, electrochemical passivation, and mechanical passivation. Chemical passivation involves treating the surface with chemicals to remove impurities and create a protective layer. Electrochemical passivation uses an electric current to form a passive oxide layer on the surface. Mechanical passivation involves physical processes such as polishing or shot peening to remove contaminants and improve surface quality. These methods help enhance the corrosion resistance and durability of special steel surfaces.

Q:How is stainless steel used in food processing?: Stainless steel is widely used in food processing due to its exceptional properties such as corrosion resistance, durability, and hygiene. It is used to manufacture various equipment like storage tanks, mixing vessels, piping systems, and food preparation surfaces. Stainless steel's non-reactive nature prevents contamination and ensures food safety, while its smooth surface allows for easy cleaning and maintenance. Additionally, its strength and heat resistance make it suitable for high-temperature processes in food processing plants.

Q:Can special steel be used for making surgical instruments?: Yes, special steel can be used for making surgical instruments. Special steel, such as stainless steel or high-carbon steel, is preferred for surgical instruments due to its excellent corrosion resistance, durability, and ability to be sterilized. These properties make it suitable for maintaining the hygiene and performance required in surgical settings.

Q:How does special steel contribute to the energy generation industry?: Special steel contributes to the energy generation industry by providing high-strength, corrosion-resistant, and heat-resistant materials that are crucial for the construction and maintenance of power plants, turbines, and other energy infrastructure. This ensures the reliability, efficiency, and longevity of these structures, enabling them to withstand extreme conditions and maximize energy production.

Q:What are the factors that determine the cost of special steel?: The factors that determine the cost of special steel include the cost of raw materials, production and manufacturing processes, market demand and supply dynamics, the complexity and uniqueness of the steel alloy, any additional treatments or coatings applied, and overall market conditions such as inflation and currency fluctuations.

Q:How does special steel contribute to the manufacturing of gears?: Due to its unique properties and characteristics, special steel is essential in the production of gears. Gears, which are mechanical devices that facilitate the transmission of power and motion between rotating shafts, require the ability to withstand high loads, operate at high speeds, and maintain precise dimensions for smooth and efficient performance. Special steel, with its enhanced mechanical properties and superior quality, provides the necessary strength, durability, and wear resistance needed for gear manufacturing. A key aspect of special steel is its high strength and hardness. Gears often endure heavy loads and experience significant stress during operation. Special steel, such as alloy steel or tool steel, possesses exceptional strength, enabling gears to handle these loads without deformation or failure. Additionally, the hardness of special steel ensures that gears can withstand abrasive wear and prevent damage caused by external factors like friction and contact with other components. Special steel also contributes to gear manufacturing by offering excellent fatigue resistance. Gears are exposed to repetitive cyclic loading, which, if not properly designed and manufactured, can result in fatigue failure over time. Special steel, with its unique microstructure and composition, enhances the fatigue life of gears by minimizing crack propagation and reducing the risk of failure, ensuring long-term reliability and performance. Furthermore, special steel provides excellent machinability and dimensional stability, two critical factors in gear manufacturing. The machinability of special steel allows for precise shaping and cutting of gear teeth, ensuring accurate dimensions and smooth gear operation. The dimensional stability of special steel helps to maintain the gear's shape and integrity under various temperature and environmental conditions, guaranteeing consistent performance throughout its lifespan. In conclusion, special steel plays a significant role in gear manufacturing by supplying the necessary strength, durability, wear resistance, fatigue resistance, machinability, and dimensional stability. Gears made from special steel can endure high loads, operate at high speeds, and maintain precise dimensions, ultimately contributing to the efficient functioning of various machinery and mechanical systems.

Q:How does special steel perform in terms of fatigue strength?: Special steel generally performs well in terms of fatigue strength. It is specifically designed to withstand repeated loading and unloading without experiencing fatigue failure. Its unique composition and heat treatment processes make it highly resistant to crack initiation and propagation, resulting in an extended fatigue life compared to regular steel. Additionally, special steels often exhibit improved resistance to other forms of degradation, such as corrosion, which further enhances their overall fatigue performance.

Q:How does special steel perform in magnetic fields?: Special steel has low magnetic permeability, meaning it exhibits little to no magnetic properties. This enables it to perform well in magnetic fields by minimizing interference, distortion, or attraction to magnetic forces.

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