Special Steel SKD61 Forged Hot Work Mould Steel

Special Steel SKD61 Forged Hot Work Mould 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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The details of our Steel

1. Produce Standard: as the GB, AISI, ASTM, SAE, EN, BS, DIN, JIS Industry Standard

2. Produce processes: Smelt Iron -EAF smelt Billet - ESR smelt Billet -Hot rolled or forged get the steel round bar and plate

3. Heat treatment:

Normalized / Annealed / Quenched+Tempered

4. Quality assurance:

All order we can received Third party inspection, You can let SGS, BV,.. and others test company test and inspect our products before Goods shipping.

Product information

1.Equivalent Grades

H13(1.2344/SKD61), EFS H13(8407), 1.2714(SKT4/5CrNiMoV)

2.Form&Size 1)SKD61 Tool Steel round bars, flat/square bars,plates,sheets.

Round steel bar: 10-800mm(Dia)

Flat steel bar: 6-400mm*200-1600mm

2)SKD61 Tool Steel Size Available(Length can be customized)

3.Surface Condition Black,turning,peeling,milling

4.Characteristic pure steel vacuum degassing refining process ball the annealing softening treatment, good cutting performance. SKD61 picture strengthening elements vanadium, molybdenum special Add, abrasion resistance is extremely excellent.

5.Usage SKD61 a high-carbon high-chromium alloy tool steel with high hardness and wear resistance after heat treatment and hardenability, good dimensional stability, suitable for making high-precision long-life cold work die and thermosetting molding plastic mold.

6.Physical properties SKD61 Hardness: before heat treatment SKD61 about HRC15 ~ 20 (HB200 230), the hardness after heat treatment: the internal of HRC40 °~ 45 ° surface HV1000 ± 100 SKD61 density is 7.85 g per cubic centimeter.

7.heat treatment

Quenching: the first stage of warm-up: the second stage of 500 to 550 ° C Preheat: 750 ~ 800 °C quenching or high-pressure gas cooling, 100 ~ 150 °C into the back to the stove. Tempering: Preheat: 300 to 350 °C tempering heating: 550 to 680 °C air cooling to room temperature, tempering three times. Quenching temperature of 1020 to 1050 degrees, hardness 56 ~ 58HRC, heat treatment of small deformation, surface nitriding nitriding processing products have better wear resistance.

8. Cryogenic treatment

In order to obtain the highest hardness and dimensional stability, the mold immediately after the quenching cryogenic -70 to -80 ° C., maintained for 3-4 hours, and then in the tempering treatment, the cryogenic treatment of tool or mold hardness than the hardness of conventional heat treatment 1 -3HRC. Complex shape and size changes in large parts, cryogenic processing production risk of cracking.

Main product

High speed steel
AISI	M2,M4,M35,M42,T1
DIN	1.3343,1.3243,1.3247,1.3355
JIS	SKH51,SKH54,SKH35,SKH59,SKH2
Cold work tool steel
AISI	D2,D5,D3,D6,A8,A2,O1
DIN	1.2379,1.2601,1.2080,1.2436,1.2631,1.2363,1.2510,1.2327
JIS	SKD10,SKD11,SKD1,SKS3
Hot work tool steel
AISI	H13,H11,H21
DIN	1.2344,1.2343,1.2367,1.2581,1.2713
JIS	SKD61,SKD6,SKD7,SKD5SKT4
Plastic mould steel
AISI	P20,P20+Ni,420
DIN	1.2311,1.2738,1.2083,1.2316
JIS	PDS-3,SUS420J1,SUS420J2
Alloy structural seel
AISI	5140,4340,4135,4140
DIN	1.7035,1.6511,1.7220,1.7225
JIS	SCr440,SNCM439,SCM435,SCM440
Stainless steel
AISI	440C,420,430
DIN	1.4125
JIS	SUS440C
Carbon steel
AISI	1045,1020
DIN	1.1191
JIS	S45C, G3101

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Special Steel SKD61 Forged Hot Work Mould Steel

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 different methods of preventing pitting corrosion in special steel?: There are several methods available to prevent pitting corrosion in special steel. These techniques aim to protect the steel surface from the corrosive environment and inhibit the formation of pits. Some of the commonly used methods include: 1. Passivation: Passivation involves treating the steel surface with a chemical solution or coating to create a protective oxide layer. This layer acts as a barrier, preventing the penetration of corrosive agents and reducing the risk of pitting corrosion. 2. Alloying: By adding specific alloying elements to the steel composition, its resistance to corrosion can be improved. Elements such as chromium, nickel, and molybdenum are often used as they enhance the steel's ability to form a stable passive film and resist pitting corrosion. 3. Cathodic protection: This method involves using a sacrificial anode or applying an impressed current to the steel surface. By making the steel cathodic, it becomes less susceptible to corrosion as electrons are drawn away from it, preventing the formation of pits. 4. Coatings: Applying a protective coating to the steel surface can effectively prevent pitting corrosion. Coatings such as paint, epoxy, or polymer-based materials act as a physical barrier, shielding the steel from corrosive agents. 5. Environmental control: Controlling the environment surrounding the steel can also help prevent pitting corrosion. This includes measures such as regulating temperature, humidity, and pH levels to ensure they are within acceptable limits and inhibiting the corrosion process. 6. Regular maintenance: Regular inspection and maintenance of the steel surface are crucial for preventing pitting corrosion. Any signs of damage or deterioration should be addressed promptly to prevent further corrosion and potential pitting. It is important to note that the choice of prevention method depends on various factors such as the specific steel composition, the corrosive environment, and the intended application. Proper selection and implementation of these methods can significantly enhance the resistance of special steel to pitting corrosion, ensuring its longevity and performance.

Q: What is the role of special steel in sustainable manufacturing?: Special steel plays a crucial role in sustainable manufacturing by offering enhanced durability, strength, and corrosion resistance, resulting in longer-lasting and more efficient products. It enables the development of lightweight yet robust components, reducing material consumption and energy consumption during production and usage. Additionally, special steel can be easily recycled, contributing to the circular economy and minimizing environmental impact.

Q: What are the different types of tool steels used in special steel?: Special steel applications commonly utilize various types of tool steels, each designed to possess exceptional hardness, wear resistance, toughness, and heat resistance. These steels are ideal for tooling and cutting applications. Some of the types of tool steels used in special steel are as follows: 1. Carbon Tool Steel: With high carbon content ranging from 0.60% to 1.5%, this type offers excellent hardness and wear resistance, making it suitable for drills, taps, and cutting tools. 2. High-Speed Steel (HSS): HSS is an alloy steel containing elements like tungsten, molybdenum, chromium, and vanadium. It provides exceptional heat resistance, hardness, and toughness, retaining its cutting edge even at high temperatures. HSS is commonly used in drill bits, milling cutters, and other cutting tools. 3. Cold Work Tool Steel: Specifically designed for room temperature or lower temperatures, this type offers excellent toughness, wear resistance, and strength. It is used in blanking, piercing, and forming dies. 4. Hot Work Tool Steel: Developed to withstand high temperatures without sacrificing hardness and strength, these steels possess good thermal conductivity, resistance to thermal fatigue, and deformation. They find applications in forging dies, extrusion dies, and die casting molds. 5. Shock-Resisting Tool Steel: Designed to resist shock and impact loads, this type offers excellent toughness, strength, and wear resistance. It is commonly used in hammers, chisels, and pneumatic tools. 6. Stainless Tool Steel: Stainless tool steels contain high levels of chromium, providing excellent corrosion resistance. They are used in applications where resistance to rust and corrosion is crucial, such as surgical instruments, molds, and cutlery. 7. Powder Metallurgy Tool Steel: Manufactured using a powder metallurgy process, these steels offer precise control over composition and microstructure. They exhibit excellent wear resistance, high toughness, and good machinability, finding applications in high-speed cutting tools and forming tools. Overall, the various types of tool steels used in special steel applications possess a wide range of characteristics and properties to meet the specific requirements of cutting, forming, and tooling applications.

Q: How does special steel perform in dynamic loading conditions?: Special steel performs exceptionally well in dynamic loading conditions. It has high strength, toughness, and fatigue resistance, making it capable of withstanding repeated loading and impacts without failure. Its ability to absorb and distribute stress evenly helps prevent cracks and fractures, ensuring the structural integrity of components even under demanding, dynamic loading conditions.

Q: What are the different methods for electroplating special steel?: There are several methods for electroplating special steel, depending on the specific requirements and desired outcome. Here are some of the different methods commonly used in electroplating special steel: 1. Electroless Nickel Plating: This method involves the use of a chemical reaction to deposit a layer of nickel onto the steel surface. It is a popular choice for achieving uniform and corrosion-resistant coatings on special steel. 2. Zinc Plating: Zinc plating is widely used to provide a protective layer on special steel. It involves the immersion of the steel in a zinc solution and passing an electric current to facilitate the deposition of zinc onto the surface. 3. Copper Plating: Copper plating is used to enhance the conductivity and corrosion resistance of special steel. It involves immersing the steel in a copper sulfate solution and applying an electric current to deposit a layer of copper onto the surface. 4. Chromium Plating: Chromium plating is a common method used to provide a decorative, corrosion-resistant, and hard-wearing surface on special steel. It involves the immersion of the steel in a chromium bath and the application of an electric current to deposit a layer of chromium onto the surface. 5. Electroplating with Precious Metals: Special steel can also be electroplated with precious metals such as gold, silver, or platinum for decorative or functional purposes. These coatings are often used to enhance the appearance, conductivity, or corrosion resistance of the steel. 6. Electroplating with Alloy Coatings: For specific applications, special steel can be electroplated with alloy coatings, such as tin-zinc or tin-lead, to provide unique properties such as enhanced solderability or improved wear resistance. It is important to note that the choice of electroplating method depends on factors such as the desired properties, the intended application, and the specific requirements of the special steel being plated. Each method has its advantages and limitations, and it is recommended to consult with experts in the field to determine the most suitable method for electroplating special steel in a given scenario.

Q: How does special steel perform in electrical applications?: Special steel is typically used in electrical applications due to its excellent conductivity and high resistance to corrosion. It provides efficient electrical conductivity, ensuring minimal power loss and heat generation. Additionally, special steel exhibits good magnetic properties, making it suitable for applications that require magnetic fields, such as transformers and motors. Overall, special steel performs exceptionally well in electrical applications, meeting the demanding requirements of the industry.

Q: What are the different methods for controlling the grain size in special steel?: There are several methods for controlling the grain size in special steel. One common method is through the use of alloying elements such as vanadium or niobium, which can help refine the grain structure. Another approach is to employ controlled cooling techniques, such as quenching or tempering, to manipulate the rate at which the steel solidifies and thus control the grain size. Additionally, grain size can be influenced by the addition of grain refiners or by subjecting the steel to severe plastic deformation processes like rolling or forging. Overall, these methods allow for precise control over the grain size in special steel, enabling improved mechanical properties and performance.

Q: What are the requirements for special steel used in power plants?: The requirements for special steel used in power plants are specific and stringent, given the critical role that these materials play in ensuring the safe and efficient operation of power generation facilities. Some of the key requirements for special steel in power plants include: 1. High temperature resistance: Special steel used in power plants must be able to withstand high temperatures without losing its structural integrity. This is crucial as power plants operate at elevated temperatures, especially in areas such as the combustion chamber or steam turbines. 2. Corrosion resistance: Power plants often operate in environments with high levels of moisture, chemicals, and other corrosive elements. Special steel must possess excellent corrosion resistance to prevent degradation and premature failure caused by chemical reactions or rusting. 3. Strength and toughness: As power plants generate significant amounts of energy, the components made of special steel must exhibit high strength and toughness to withstand the mechanical stresses and loads they are subjected to. This includes resistance to fatigue, creep, and stress corrosion cracking. 4. Weldability: Power plant components often require welding during fabrication or maintenance. Special steel should have good weldability to ensure strong and reliable joints that maintain the structural integrity of the overall system. 5. Low thermal expansion: Special steel used in power plants should have low thermal expansion properties to minimize the risk of thermal stress and distortion that can occur due to temperature variations during operation. This ensures dimensional stability and prevents premature failure. 6. Resistance to radiation: In some power plants, such as nuclear facilities, special steel may be exposed to radiation. Therefore, it is necessary for the steel to have good resistance to radiation damage, ensuring its long-term performance and safety. 7. Compliance with industry standards: Special steel used in power plants must meet specific industry standards and codes to ensure its quality, reliability, and safety. These may include standards such as ASTM, ASME, or ISO, among others. Overall, the requirements for special steel used in power plants are driven by the need for high temperature resistance, corrosion resistance, strength, weldability, low thermal expansion, radiation resistance, and compliance with industry standards. Meeting these requirements ensures the integrity and longevity of power plant components, contributing to the safe and efficient generation of electricity.

Q: Can special steel be coated?: Yes, special steel can be coated. Coating special steel provides several benefits such as corrosion resistance, improved aesthetics, increased durability, and enhanced functionality. There are various coating materials and techniques available for special steel, including but not limited to electroplating, hot-dip galvanizing, powder coating, and ceramic coating. These coatings help protect the steel from environmental factors, chemical exposure, and wear and tear, thereby extending its lifespan and maintaining its performance. Additionally, coatings can also be customized to provide specific properties like non-stick surfaces, heat resistance, or anti-microbial properties, depending on the intended application of the special steel.

Q: What are the different standards and specifications for special steel?: Special steel production and usage is governed by a variety of standards and specifications. These guidelines guarantee that the steel satisfies specific requirements and performance criteria for different purposes. Some of the commonly used standards and specifications for special steel are as follows: 1. AISI/SAE standards: Developed by the American Iron and Steel Institute (AISI) and the Society of Automotive Engineers (SAE), these standards classify special steel types based on their chemical composition and mechanical properties. They are widely used across various industries. 2. ASTM standards: The American Society for Testing and Materials (ASTM) provides standards for special steel materials in construction, manufacturing, and engineering applications. These standards define chemical composition, mechanical properties, and other necessary characteristics for specific grades of special steel. 3. EN standards: The European Committee for Standardization (CEN) has established the European Norm (EN) standards for steel products. Covering a wide range of steel grades, these standards specify chemical composition, mechanical properties, and testing procedures required for different types of special steel. 4. JIS standards: The Japanese Industrial Standards (JIS) outline the requirements for various types of steel used in Japan, including special steel. They provide guidelines for chemical composition, mechanical properties, and other quality parameters. 5. ISO standards: The International Organization for Standardization (ISO) has developed standards for steel materials used globally in different industries. These standards ensure compatibility and interchangeability of steel products by defining dimensions, tolerances, and performance requirements. 6. MIL-SPEC standards: The United States Department of Defense (DoD) has created military specifications (MIL-SPEC) for special steel used in defense applications. These standards define the requirements for special steel used in military equipment, weapons, and vehicles to ensure reliability and performance under harsh conditions. 7. API standards: The American Petroleum Institute (API) provides standards for special steel utilized in the oil and gas industry. These standards specify materials, dimensions, and other requirements for steel pipes, fittings, and equipment used in oil and gas exploration, production, and transportation. These examples represent only a fraction of the numerous standards and specifications available for special steel. Manufacturers and industries must comply with these standards to guarantee the quality, performance, and safety of special steel products in different applications.

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