• Special Steel NAK80 Steel Round Bar Alloy Steel System 1
  • Special Steel NAK80 Steel Round Bar Alloy Steel System 2
  • Special Steel NAK80 Steel Round Bar Alloy Steel System 3
Special Steel NAK80 Steel Round Bar Alloy Steel

Special Steel NAK80 Steel Round Bar Alloy 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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Item specifice

Type:
Alloy Steel
Shape:
Steel Round Bar

Special Steel NAK80 Steel Round Bar Alloy Steel 

Product Information:

1. Hardness:Hardened hardness: HRC=37~43

2.Size specification

l Thickness: 20~300MM

l Width: 205~2000MM

l Length: 2000~5800MM

l Round bar: 30~350MM

And we can also provide the size as you required.

 3. Surface condition: Black surface / Grinding / Polishing / Milling / Machined……

 4. shape:flat / round bar / square bar / sheet / plate ……

 5. Process: EAF + LF + VD + HOT ROLLED + Heat Treatment (optional)

 6. Heat treatment: Normalized / Annealed / Quenched / tempered

 7. Technical Data: According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing 

 8. Inspection: Ultrasonic test according to SEP 1921-84 Gr3, Class C/c or D/d

 9. Delivery condition:

l Hot rolled or forging

l Black surface / Grinding / Polishing / Milling / Machined

l Hardened & tempering & annealing

l EAF or ESR material

 10. Payment terms:

30% advance by T\T; Balance pay before the shipment against shipping documents or irrevocable LC at sight

 11. Delivery time: 3-15 days after advanced payment

 12. Material character:

l Low alloy separate out induration steel

l Good mechanical property after the heat-treatment

l High quenching

l The heat-treatment technology is very simple

l Small distortion and nice mirror process under the heat-treatment

l Good nitrogenated capacity, electronic capacity, welding capacity

l Strong good flower pattern engraving capacity and so on

Product Overviews:

Product NameTypical GradesDiameter(mm)Standard adopted
Carbon Steel20 (1020/S20C/C22)Ø16-Ø300GB/SAE/JIS/DIN
40 (1040/S40C/C40)
45 (1045/S45C/C45)
Bearing SteelGCr9 (51100/SUJ1)Ø12-Ø250
GCr15 (52100/SUJ2/100Gr6)
GCr9SiMn (A485-Gr.1/SUJ3)
Cr-Mo Steel20Cr (5120/SCr420H/20Cr4)Ø12-Ø250
40Cr (5140/SCr440/41Cr4)
42CrMo(4140/SCM440/42CrMo4)
Gear Steel20CrNiMoØ16-Ø600
20CrMn(5115/SMnC420/20MnCr5)
20CrNiMo(8620/SNCM220/20CrMiMo2)

Product Show:

Special Steel NAK80 Steel Round Bar Alloy Steel

Our Advantages:

· Industry experience over 20 years.

· Shipment of goods -More than 70 countries worldwide.

· The most convenient transport and prompt delivery.

· Competitive price with best service.

· High technical production line with top quality products.

· High reputation based on best quality products.

 

With our experienced, enthusiastic and dynamic staffs, we assure to bring you the products with best quality, reasonable prices and good after-sales services under the motto: Friends First, Business After.

Communication, Experience, Expertise and Best efforts are our Promises to you.


Q:What is the chemical composition of special steel?
Special steel encompasses a wide range of steel alloys that possess specific properties and characteristics. The chemical makeup of special steel can differ depending on the particular grade or type of steel being discussed. Nevertheless, special steel typically contains greater amounts of alloying elements compared to regular carbon steel. These alloying elements may consist of chromium, nickel, molybdenum, vanadium, tungsten, and others. The specific combination and proportion of these alloying elements determine the distinctive properties of special steel, such as increased strength, enhanced resistance to corrosion, improved ability to withstand high temperatures, or better resistance to wear and tear. To illustrate, some common variations of special steel include stainless steel, which generally consists of high levels of chromium and nickel, resulting in excellent corrosion resistance; tool steel, which contains high carbon content and often includes additional elements like vanadium or tungsten, making it suitable for cutting, drilling, or shaping tools; and high-speed steel, which incorporates elements such as molybdenum, cobalt, or tungsten, providing exceptional hardness and heat resistance, ideal for use in cutting tools or drills. To summarize, the chemical composition of special steel varies based on the specific type or grade, but it typically involves elevated levels of alloying elements to achieve desired properties such as strength, corrosion resistance, heat resistance, or wear resistance.
Q:How does special steel behave under different types of loading conditions?
Special steel, also referred to as alloy steel, displays distinctive characteristics when subjected to different types of loads. It is specifically engineered to possess exceptional mechanical properties, rendering it suitable for a diverse range of applications where high strength, toughness, and resistance to wear or corrosion are necessary. Under tension loading, special steel demonstrates remarkable tensile strength and ductility, allowing it to endure pulling forces without easily fracturing. This property makes it ideal for applications where components are exposed to pulling or stretching forces, such as cables, structural elements, or automotive parts. When subjected to compressive loading, special steel showcases its exceptional ability to withstand forces that attempt to squeeze or press it together. This renders it suitable for applications like hydraulic cylinders, crankshafts, or flanges, where resistance to compression is essential. In terms of bending or flexural loading, special steel exhibits outstanding flexibility while retaining its strength, enabling it to endure repeated bending without deformation or failure. This property is particularly advantageous in applications involving springs, suspension systems, or beams exposed to dynamic loads. Special steel also possesses excellent fatigue resistance, which means it can endure cyclic loading or repeated stress without failure. This property is crucial in applications subjected to continuous or repetitive loading, such as turbine blades, gears, or axles. Furthermore, special steel effectively handles impact loading due to its high toughness and impact resistance. This makes it suitable for applications where sudden shocks or impacts are anticipated, such as hammer heads, drill bits, or armor plating. In terms of temperature loading, special steel retains its mechanical properties even at high temperatures due to its exceptional heat resistance. This property makes it suitable for applications exposed to extreme heat or thermal cycling, such as turbine components, exhaust systems, or molds utilized in metal casting. To summarize, special steel exhibits different behaviors under various loading conditions, adapting its mechanical properties to meet the specific requirements of each application. Its unique combination of strength, toughness, ductility, and resistance to wear or corrosion make it a versatile material capable of enduring different types of loading conditions.
Q:Can special steel be used for nuclear power plant components?
Yes, special steel can be used for nuclear power plant components. Special steel alloys, such as stainless steel or low alloy steel, are commonly used in the construction of various components in nuclear power plants due to their high strength, corrosion resistance, and ability to withstand high temperatures and radiation exposure. These properties are crucial for ensuring the safety and longevity of nuclear power plants.
Q:How is special steel used in the medical industry?
Special steel is used in the medical industry for a variety of applications such as surgical instruments, implants, and medical devices. The properties of special steel, including its strength, corrosion resistance, and biocompatibility, make it ideal for these purposes. It ensures the safety and effectiveness of medical procedures, allowing for precise and durable tools and implants that are essential for patient care.
Q:What are the main characteristics of electrical steel?
The main characteristics of electrical steel include high magnetic permeability, low electrical resistivity, and low hysteresis loss. It is specifically designed to efficiently conduct and transform electrical energy, making it ideal for use in transformers, motors, and generators.
Q:What are the properties of maraging steel?
Maraging steel is a type of high-strength steel known for its exceptional strength, toughness, and resistance to fatigue. It possesses a unique combination of properties such as high yield strength, excellent fracture toughness, and superior hardness. This steel also exhibits remarkable corrosion resistance and can withstand extreme temperatures. Additionally, maraging steel is highly weldable and machinable, making it suitable for a wide range of applications in industries such as aerospace, defense, and tooling.
Q:What are the main characteristics of structural steel forgings?
Structural steel forgings offer numerous advantageous qualities that make them highly suitable for a wide range of construction and engineering purposes. To begin with, the outstanding strength and durability of structural steel forgings are among their main attributes. Steel possesses remarkable tensile strength, allowing it to bear heavy loads and withstand stress-induced deformations. This makes structural steel forgings ideal for supporting large structures and withstanding dynamic forces such as wind or seismic activity. Another noteworthy quality is the versatility of structural steel forgings. Steel can be shaped and sized into a diverse array of forms, making it adaptable to various design requirements. It can be forged into intricate and complex shapes, enabling the creation of precise and customized components. This versatility enables the application of structural steel forgings in a multitude of scenarios, ranging from beams and columns in buildings to bridges and offshore structures. Moreover, structural steel forgings exhibit excellent weldability. Various welding techniques can be employed to easily join steel components together, creating robust and dependable connections. This enhances the overall structural integrity and longevity of steel elements. One more key characteristic of structural steel forgings is their cost-effectiveness. Steel is an economical construction material due to its abundance, recyclability, and ease of manufacturing. The production process for steel forgings is efficient and can be scaled up to meet the demands of large-scale construction projects. Consequently, it represents a cost-effective choice for numerous applications. Furthermore, structural steel forgings are renowned for their resistance to corrosion. Steel can be treated with coatings or alloys to enhance its resistance against rust and other forms of corrosion. This makes it highly suitable for deployment in environments with high humidity, exposure to saltwater, or harsh weather conditions. In conclusion, the exceptional strength, versatility, weldability, cost-effectiveness, and resistance to corrosion are the primary characteristics of structural steel forgings. These qualities position structural steel forgings as the preferred choice for a multitude of construction and engineering applications, offering durability, reliability, and longevity to structures.
Q:What are the specific requirements for special steel used in the railway sector?
The specific requirements for special steel used in the railway sector are crucial for ensuring the safety, durability, and efficient operation of the railway infrastructure. Some of the key requirements include: 1. High strength: Special steel used in the railway sector must possess exceptional strength to withstand heavy loads, vibrations, and impacts. This is crucial for maintaining the structural integrity of tracks, bridges, and other components. 2. Wear resistance: Railway tracks and wheels experience significant wear due to continuous contact and friction. Special steel must have excellent wear resistance to minimize the need for frequent maintenance and replacement. 3. Fatigue resistance: The constant cyclic loading experienced by railway components demands high fatigue resistance in the steel. This allows them to withstand repetitive stress and prevents the occurrence of fatigue failures. 4. Corrosion resistance: Railway infrastructure is exposed to various environmental conditions, such as moisture, extreme temperatures, and chemicals. Special steel must possess good corrosion resistance to prevent rusting and degradation, ensuring a longer service life. 5. Heat resistance: In certain applications, such as rail joints and fasteners, special steel is subjected to high temperatures due to friction and stresses. The steel must have good heat resistance to maintain its mechanical properties under such conditions. 6. Weldability: Special steel used in the railway sector should have good weldability to enable efficient and reliable joining of components during manufacturing and maintenance processes. 7. Ductility and toughness: The steel must exhibit sufficient ductility and toughness to absorb energy and resist fracture in the event of a collision or impact, ensuring passenger safety. 8. Dimensional stability: Special steel used in the railway sector must maintain its dimensional stability under varying temperatures and loads to prevent deformation and ensure proper alignment of tracks and components. Meeting these specific requirements for special steel in the railway sector is essential for ensuring the safety, reliability, and longevity of railway infrastructure, contributing to the smooth operation of the entire transport network.
Q:How does special steel perform in terms of creep resistance?
Special steel performs exceptionally well in terms of creep resistance. It has been specifically engineered to withstand high temperatures and prolonged stress, making it highly resistant to deformation over time. This allows special steel to maintain its structural integrity and dimensional stability, making it an ideal choice for applications that require long-term durability under extreme conditions.
Q:What are the different testing methods used for special steel?
There are several testing methods commonly used for special steel, including mechanical testing, non-destructive testing (NDT), and chemical analysis. Mechanical testing involves evaluating the physical properties of the steel, such as tensile strength, hardness, and impact resistance. NDT methods, such as ultrasonic testing, magnetic particle inspection, and radiographic testing, are used to detect defects or flaws in the steel without causing any damage. Chemical analysis involves determining the composition and elemental content of the steel, which is crucial for ensuring its quality and performance. These testing methods are essential in ensuring the reliability and suitability of special steel for various applications.

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