• Alloy Steel ASTM D2 Special Steel Carbon Steel System 1
  • Alloy Steel ASTM D2 Special Steel Carbon Steel System 2
  • Alloy Steel ASTM D2 Special Steel Carbon Steel System 3
Alloy Steel ASTM D2 Special Steel Carbon Steel

Alloy Steel ASTM D2 Special Steel Carbon Steel

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month

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Specification

Type:
Alloy Steel
Shape:
Steel Round Bar
Standard:
EN,DIN,BS,GB,JIS,ASTM,AISI,API
Technique:
Hot Rolled,Spring,EFW,Extruded,Forged,ERW,Cold Drawn,Cold Rolled
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Certification:
ISO,SGS,BV,IBR,RoHS,CE,API,BSI,UL
Surface Treatment:
PVDF Coated,Bright,Polished,Chromed Passivation,Dry,Oiled,Color Coated,Copper Coated,Coated,Galvanized,Black
Thickness:
as required
Shape:
Round,Hexagonal,C Channel,Square,U Channel
Length:
as required
Net Weight:
as required

Chemical Composition(%)

CountryStandardCSiMnCrMoVSPOther
China(GB)Cr12Mo1V11.40-1.60≤0.60≤0.6011.0-13.00.70-1.20≤1.10≤0.030≤0.030Co≤1.00
USA(ASTM)D21.40-1.600.30-0.500.30-0.5011.0-13.00.70-1.200.8≤0.025≤0.025Co:0.60
Germany(DIN)1.23791.50-1.600.10-0.400.15-0.4511.5-12.50.60-0.800.90-1.10≤0.030≤0.030-
Japan(JIS)SKD111.40-1.60≤0.40≤0.6011.0-13.00.80-1.200.20-0.50--Ni≤0.50 

Available Size

Rolled flat steel12-90mm×205-610mm×L
Forged flat steel100-300mm×400-600mm×L

Characterstics

1.High hardening ability and quench-hardening performance
2.High abrasive resistance 
3.Good oxidation resistance at elevated temperatures
4.Less deformation after heat treatment

 

Applications:  suitable for various complicated cold working dies with high precision and long lifetime,such as punching dies,cold extrusion dies,thread rolling dies,screw plates,cold extrusion dies,and precise measuring devices


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Alloy Steel ASTM D2 Special Steel Carbon Steel

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    30% TT as deposit and 70% before delivery.

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Q: What are the different methods of preventing pitting corrosion in special steel?
There are several methods to prevent pitting corrosion in special steel. One common approach is the use of corrosion-resistant alloys, such as stainless steel, which contain elements like chromium and nickel that form a protective oxide layer on the surface. Additionally, applying coatings or paints can provide a barrier against corrosive agents. Another effective method is cathodic protection, where a sacrificial anode or impressed current system is employed to protect the steel from corrosion. Regular inspection and maintenance, as well as controlling the environment by reducing exposure to corrosive substances, also play crucial roles in preventing pitting corrosion in special steel.
Q: What is the difference between general steel and special steel?
Special steel: it is an important symbol to measure whether a country can become a steel power. It is the main steel used in most industries such as machinery, automobile, military industry, chemical industry, household electrical appliance, shipping, traffic, railway and new industries. China's special steel industry is responsible for the special steel products needed by the key industries such as defense industry, high and new technology industry and machinery and automobile industry. China manufacturing growth to provide a space for the development of domestic special steel, sustained and rapid development of manufacturing industry, especially in machinery, automobile, machinery, shipbuilding and other industries, the strong demand of special steel, become the direct impetus to support excellent steel market.
Q: Can special steel be used in the defense equipment manufacturing industry?
Yes, special steel can be used in the defense equipment manufacturing industry. Special steel alloys, such as high-strength and corrosion-resistant varieties, are often utilized in the production of various defense equipment components, including armored vehicles, missiles, aircraft, and naval vessels. These specific steel types offer superior mechanical properties, durability, and resistance to extreme conditions, making them highly suitable for defense applications.
Q: How is special steel used in the construction manufacturing process?
Special steel is used in the construction manufacturing process due to its unique properties and characteristics. It is commonly utilized in the production of structural components, such as beams, columns, and reinforcements, where high strength, durability, and resistance to corrosion are crucial. Special steel also finds application in the manufacturing of machinery, equipment, and tools used in construction, thanks to its ability to withstand heavy loads and extreme conditions. Additionally, it is used for specialized purposes like in the construction of bridges, skyscrapers, and other architectural marvels, where its exceptional strength and reliability are essential for ensuring the safety and longevity of the structures.
Q: Can special steel be used for making electrical components?
Yes, special steel can be used for making electrical components. Special steel alloys with specific properties such as high electrical conductivity, corrosion resistance, and magnetic properties can be tailored for various electrical applications, including circuit breakers, transformers, and electrical connectors.
Q: What are the requirements for special steel used in metalworking tools?
To ensure the effectiveness and durability of metalworking tools, specific characteristics and qualities are necessary for the special steels used in their production. Key requirements for these steels include: 1. High hardness: The special steels must possess a high level of hardness to resist wear and deformation, enabling the tools to maintain their sharpness and cutting edge for extended periods. This results in efficient and precise machining operations. 2. Excellent toughness: Given the high impact and stress loads experienced by metalworking tools, they must have excellent toughness to withstand the forces encountered during cutting, drilling, or shaping operations. This toughness prevents the tools from fracturing or chipping, ensuring a longer tool life. 3. Good heat resistance: The performance of metalworking tools can be compromised by the significant heat generated during the machining process. Therefore, the special steels used in these tools should exhibit good heat resistance to minimize the risk of thermal damage, even at elevated temperatures. 4. Wear resistance: Metalworking tools are constantly in contact with the workpiece, making the ability to resist wear crucial. Special steels used in these tools should have high wear resistance to maintain their cutting performance and dimensional accuracy over time. 5. Corrosion resistance: Metalworking tools often encounter harsh environments with coolants, lubricants, and corrosive elements. To prevent rusting and degradation, the special steels used in these tools should possess good corrosion resistance, ensuring the longevity and reliability of the tools. 6. High dimensional stability: Special steels used in metalworking tools must exhibit high dimensional stability to guarantee consistent performance. This stability allows the tools to maintain their shape and size under varying operating conditions, resulting in accurate and repeatable machining processes. 7. Machinability: The special steels used in metalworking tools should be easily processed and shaped into the desired tool design. This characteristic enables cost-effective manufacturing, reducing production time and expenses. By meeting these requirements, the special steels used in metalworking tools can withstand the demanding conditions encountered in various metal fabrication and machining operations. They provide efficient cutting, shaping, and drilling capabilities while maintaining longevity and performance.
Q: What are the different methods of surface grinding for special steel?
There are several different methods of surface grinding that can be used for special steel. Here are some of the most commonly utilized methods: 1. Blanchard Grinding: This method involves using a rotary table and a grinding wheel to remove material from the surface of the steel. The grinding wheel is typically made of abrasive particles bonded together in a matrix and rotates at a high speed. Blanchard grinding is known for its ability to quickly and efficiently remove large amounts of material, making it suitable for roughing operations. 2. Precision Grinding: This method is often used for finishing operations, where a high degree of accuracy and surface finish is required. Precision grinding involves using a surface grinder with a fine-grit grinding wheel to remove a small amount of material from the surface of the steel. This process is typically slower and more precise than Blanchard grinding, resulting in a smoother and more polished surface. 3. Centerless Grinding: This method is commonly used for cylindrical steel parts that require a high degree of precision. Centerless grinding involves feeding the steel between a grinding wheel and a regulating wheel, with the grinding wheel removing material from the surface as it rotates. The regulating wheel controls the speed and feed rate of the steel, ensuring consistent and accurate grinding. 4. Creep Feed Grinding: This method is used for heavy stock removal on large steel parts. Creep feed grinding involves using a slow feed rate and deep cuts to remove material from the surface. This method is typically used for specialized applications where traditional surface grinding methods are not suitable due to the size or complexity of the steel part. Overall, the choice of surface grinding method for special steel will depend on factors such as the desired surface finish, accuracy requirements, and the size and complexity of the steel part. It is important to consult with a skilled grinding professional to determine the most appropriate method for a specific application.
Q: What are the different methods for nitriding special steel?
There are several methods for nitriding special steel, including gas nitriding, salt bath nitriding, plasma nitriding, and ion nitriding.
Q: What are the properties of titanium alloys?
Titanium alloys have several properties that make them highly desirable in various industries. Firstly, they have excellent strength-to-weight ratio, which means they are strong and lightweight. This property makes them suitable for applications where strength and durability are required, such as aerospace engineering. Secondly, titanium alloys have high corrosion resistance, even in harsh environments. They form a protective oxide layer on their surface, which prevents them from corroding. This characteristic makes them ideal for marine and chemical processing industries. Thirdly, titanium alloys have a high melting point, allowing them to withstand extreme temperatures without losing their structural integrity. This property makes them suitable for applications in the automotive, defense, and power generation sectors. Furthermore, titanium alloys are biocompatible, meaning they are well-tolerated by the human body and are often used in medical implants and prosthetics. Overall, titanium alloys possess a unique combination of strength, lightweightness, corrosion resistance, high melting point, and biocompatibility, making them highly valuable and versatile materials in various industries.
Q: How does special steel contribute to the manufacturing of springs for automotive applications?
Special steel plays a crucial role in the manufacturing of springs for automotive applications due to its unique properties and characteristics. Springs are essential components in automobiles as they provide the necessary suspension and shock absorption, ensuring a smooth and comfortable ride. One of the key advantages of special steel in spring manufacturing is its high strength and durability. Springs are subject to constant stress and repetitive loading, and special steel, with its exceptional strength, can withstand these forces without deforming or breaking. This property ensures that the springs can function reliably and maintain their shape and performance over extended periods of use. Additionally, special steel offers excellent fatigue resistance, which is vital for springs in automotive applications. Fatigue occurs when a material weakens and eventually fails after repeated loading and unloading cycles. Special steel is specifically designed to withstand fatigue, allowing the springs to endure the constant pressure and stress without experiencing premature failure. Moreover, special steel provides superior corrosion resistance, which is particularly important for automotive springs. Cars are exposed to various environmental elements, including moisture, road salt, and chemicals, which can lead to corrosion and deterioration of the springs. By using special steel with enhanced corrosion resistance, manufacturers can ensure that the springs have a longer lifespan and maintain their performance even in harsh conditions. Furthermore, special steel offers versatility in terms of its composition and properties. Manufacturers can choose from a wide range of special steel alloys, each with its own unique characteristics, to meet specific requirements. For example, some alloys offer greater elasticity, allowing the springs to flex and absorb shocks more effectively. Others provide higher hardness, enhancing the springs' load-bearing capacity. This flexibility in material selection empowers manufacturers to design and produce springs that are tailored to the specific needs of automotive applications. In conclusion, special steel significantly contributes to the manufacturing of springs for automotive applications by providing high strength, durability, fatigue resistance, corrosion resistance, and versatility. These properties enable the production of reliable, long-lasting springs that ensure optimal suspension, shock absorption, and overall performance in vehicles.

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