Grade SAE4340 High Speed Steel Bar for Gears

Grade SAE4340 High Speed Steel Bar for Gears System 1

Grade SAE4340 High Speed Steel Bar for Gears System 2

Grade SAE4340 High Speed Steel Bar for Gears System 3

Grade SAE4340 High Speed Steel Bar for Gears System 4

Grade SAE4340 High Speed Steel Bar for Gears

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 100000 m.t./month

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Grade SAE4340 High Speed Steel Bar for Gears

Detailed Information of Grade SAE4340 High Speed Steel Bar for Gears

Name	Steel Round Bar
Shape	Round Bar/Square Bar/Flat Bar/Plate/Wire
Standard	GB/ASTM/SAE/AISI/DIN/JIS/EN/BS
Surface Treatment:	Black/Peeling/Polished/Machined
Delivery Condition:	Hot Rolled or Forged/Peeled or Black Surface
Test	SGS/UT 100% Elements Testing
Certificate:	ISO/Mill Certificate
Service:	24 hours online service /
Service:	more than 20 years trading and manufacture
Quality Assurance:	the third party inspection, such as SGS, BV, TUV…etc. is acceptable
Packaging Details:	Seaworthy Packaging or as per customer's packing instruction

Product Overviews of 4130 Steel Rod/4130 Steel Bar/Alloy Steel Bar

Product Name	Typical Grades	Diameter(mm)	Standard Adopted
Carbon Steel	20 (1020/S20C/C22)
	40 (1040/S40C/C40)	Ø16-Ø300
	45 (1045/S45C/C45)
Bearing Steel	GCr9 (51100/SUJ1)
	GCr15 (52100/SUJ2/100Gr6)	Ø12-Ø250
	GCr9SiMn (A485-Gr.1/SUJ3)		GB/SAE/
Cr-Mo Steel	20Cr (5120/SCr420H/20Cr4)		JIS/DIN
	40Cr (5140/SCr440/41Cr4)	Ø12-Ø250
	42CrMo(4140/SCM440/42CrMo4)
Gear Steel	20CrNiMo
	20CrMn(5115/SMnC420/20MnCr5)	Ø16-Ø600
	20CrNiMo(8620/SNCM220/20CrMiMo2)

Company Introduction of Grade SAE4340 High Speed Steel Bar for Gears

CNBM International Corporation is the most import and export platform of CNBM group(China National Building Material Group Corporation) ,which is a state-owned enterprise, ranked in 270th of Fortune Global 500 in 2015.

With its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high quality series of refractories as well as technical consultancies and logistics solution.

Grade SAE4340 High Speed Steel Bar for Gears

After-sale service	l CNBM provides the services and support you need for every step of our cooperation. We’re the business partners you can trust; you can relax and get on with doing business.
	l For any problem, please kindly contact us at any your convenient time, we’ll reply you in our first priority within 24 hours

Advantages	l Industry experience over 20 years.
	l Shipment of goods -More than 70 countries worldwide.
	l The most convenient transport and prompt delivery.
	l Competitive price with best service.
	l High technical production line with top quality products.
	l High reputation based on best quality products.

Packaging & Delivery of Grade SAE4340 High Speed Steel Bar for Gears

Packaging Detail	Sea worthy packing /as per customer's packing instruction
Delivery Detail	15 ~ 40 days after receiving the deposit

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Grade SAE4340 High Speed Steel Bar for Gears

FAQ:

Are you a trading company or manufacturer?	Manufacturer
What’s the MOQ?	1000m2
What’s your delivery time?	15-20 days after downpayment received
Do you Accept OEM service?	Yes
what’s your delivery terms?	FOB/CFR/CIF
What's the Payment Terms?	30% as deposit,70% before shipment by T/T
	Western Union acceptable for small amount.
	L/C acceptable for large amount.
	Scrow ,Paybal,Alipay are also ok
Why choose us?	Chose happens because of quality, then price, We can give you both. Additionally, we can also offer professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposals.
Why choose us?
What's your available port of Shipment?	Main Port, China
What’s your featured services?	Our service formula: good quality+ good price+ good service=customer's trust
What’s your featured services?
Where are your Market?	Covering more than 160 countries in the world

Q: What are the applications of special steel in the agriculture supply chain?: Special steel has several applications in the agriculture supply chain. It is commonly used in the manufacturing of farm equipment and machinery such as tractors, plows, and harvesters. Special steel's high strength and durability make it ideal for these heavy-duty applications, ensuring that the equipment can withstand the demanding conditions of the agricultural sector. Additionally, special steel is also used in the production of storage tanks and silos, providing a robust and reliable solution for storing grains, fertilizers, and other agricultural products.

Q: What are the main applications of special steel in the automotive electrical systems?: Special steel is commonly used in automotive electrical systems for various applications, including the production of electrical connectors, terminals, and other components. These materials offer excellent conductivity, corrosion resistance, and high temperature stability, ensuring reliable and efficient performance in demanding environments. Additionally, special steel can be used in the manufacturing of sensors, switches, and relays, providing durability, precision, and enhanced safety features in automotive electrical systems.

Q: How is special steel used in the manufacturing of bearings?: Special steel is used in the manufacturing of bearings due to its high strength, durability, and resistance to wear and corrosion. This type of steel is specifically designed to withstand the demanding conditions and loads that bearings are subjected to. It is used to create the inner and outer rings, as well as the rolling elements, of the bearing, ensuring smooth operation and increased lifespan.

Q: What are the common defects found in special steel?: Some common defects found in special steel include surface defects such as scratches, pitting, and scaling, as well as internal defects like cracks, voids, and inclusions. These defects can negatively impact the mechanical properties and performance of the steel, compromising its strength, durability, and corrosion resistance.

Q: How does spring steel maintain its elasticity?: Spring steel maintains its elasticity due to its unique composition and manufacturing process. It is made from a high carbon steel alloy that undergoes heat treatment and quenching, which gives it its exceptional strength and flexibility. This heat treatment process called tempering allows the steel to retain its shape and bounce back to its original form after being deformed or subjected to external forces. The carbon content in spring steel also contributes to its elasticity by providing increased hardness and resistance to deformation. Overall, the combination of high carbon content, heat treatment, and quenching make spring steel highly durable and able to maintain its elasticity over extended periods of use.

Q: How does special steel perform in high-temperature corrosion resistance?: Special steel is known for its excellent performance in high-temperature corrosion resistance. It is specifically designed to withstand harsh conditions and maintain its integrity even at elevated temperatures. The composition of special steel includes various alloying elements such as chromium, nickel, molybdenum, and others, which enhance its resistance to corrosion in high-temperature environments. At high temperatures, many materials tend to oxidize or react with the surrounding environment, leading to corrosion and degradation. However, special steel forms a protective oxide layer on its surface, which acts as a barrier against corrosive elements. This oxide layer, mainly composed of chromium, is stable and self-repairing, preventing further corrosion and maintaining the structural integrity of the steel. Furthermore, the addition of alloying elements like molybdenum improves the steel's resistance to pitting and crevice corrosion, which are common in high-temperature environments. Special steel also exhibits excellent mechanical properties even at elevated temperatures, ensuring its structural stability and preventing deformation or failure under stress. Additionally, special steel is often heat-treated to enhance its high-temperature corrosion resistance. Heat treatment processes like annealing, tempering, or quenching and tempering optimize the microstructure and mechanical properties of the steel, making it more resistant to corrosion in extreme conditions. Overall, special steel performs exceptionally well in high-temperature corrosion resistance due to its unique composition, protective oxide layer, and heat treatment processes. It is a reliable and durable material choice for applications that involve exposure to elevated temperatures and corrosive environments, such as in chemical processing plants, power generation facilities, or oil and gas refineries.

Q: What are the different methods of surface protection for special steel?: There are several methods of surface protection for special steel, including galvanizing, painting, powder coating, electroplating, and hot-dip coating. Each method offers different advantages and is suitable for various applications based on factors such as corrosion resistance, durability, aesthetics, and cost-effectiveness.

Q: What are the factors that affect the machinability of special steel?: The factors that affect the machinability of special steel include its chemical composition, microstructure, hardness, and the presence of impurities or additives. Additionally, the cutting conditions and tool materials used during machining operations also play a significant role in determining the machinability of special steel.

Q: What are the properties of low-alloy steel?: Low-alloy steel is a type of steel that has a relatively low amount of alloying elements, typically less than 5%. It possesses several properties that make it suitable for various applications. Low-alloy steel is known for its high strength, toughness, and durability, making it resistant to wear, fatigue, and impact. It also exhibits good weldability and machinability, allowing for easy fabrication and forming. Additionally, low-alloy steel has excellent corrosion resistance due to the presence of alloying elements, such as chromium, nickel, and molybdenum. Overall, the properties of low-alloy steel make it a versatile material used in industries such as construction, automotive, and manufacturing.

Q: What are the challenges faced in the manufacturing process of special steel?: There are several challenges faced in the manufacturing process of special steel. Firstly, the raw materials used in special steel production, such as alloying elements, need to be carefully selected and sourced to ensure high quality and desired properties. Secondly, the melting and casting process requires precise control of temperatures and cooling rates to prevent defects and achieve uniformity. Thirdly, achieving the desired composition and microstructure through heat treatment can be complex and time-consuming. Additionally, maintaining consistent quality throughout the entire production process can be a challenge, as any variation in parameters can result in variations in the final product. Finally, ensuring compliance with stringent industry standards and regulations adds another layer of complexity to the manufacturing process of special steel.

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