• Hot Work Die Steel Round Bar H12 Steel System 1
  • Hot Work Die Steel Round Bar H12 Steel System 2
Hot Work Die Steel Round Bar H12 Steel

Hot Work Die Steel Round Bar H12 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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Item specifice

Type:
Alloy Steel
Shape:
Steel Round Bar
Standard:
AISI,ASTM,JIS,GB,BS,DIN,EN,API
Technique:
Forged,Hot Rolled,Cold Rolled,Cold Drawn,ERW,Saw,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
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
Net Weight:
as required
Length:
as required
Thickness:
as required

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.Specification of H12 steel

       Round bar 

Diameter(mm)

Length (mm)


70~600

2000~6000


         Plate

Thickness(mm)  

Width (mm)       

Length (mm)    

25~400

100~810

2000~5800

The specification can be customised!

2.Chemical compositon of H12 steel

NO.

C

Mn

Si

Cr

Mo

V

P

S

Aisi H12

0.28~0.55

0.15~0.45

0.10~0.40

2.70~3.20

2.60~3.00

0.40~0.70

≤0.030

≤0.030

3.Delivery condition 

Standard Number

   Annealing 

    Heat treatment temp( °C )

HRC Secondar Hardness

H12

≤235

  Hardening: 1020

Tempering: 530~560

47~54

4.Heat treatment 

1.Quench:1000-1040`C via 600`C and 850`C, preheating oil or wind cooling

2.Temper temperature should be higher than working temperature in order to stabilize the working size of mold

3.Heat up to 650°C of average temperature in order to eliminate the machined stress, 500  °c air cooling after electric cooker cooling

4.Tempering, 800-850  °c ,slow cooling after diathermia

5. Melting Process of SKD61 steel rod 

1.EAF: Electric Furnace+LF+VD(Optional)

2.ESR:  Electric Furnace+LF+VD+Eleroslag Remelted(Optional)

UT Class of SKD61 steel rod

5.Characteristic of H12steel 

(1) High strength toughness, high chromium steel

(2) Good hot intensity and rigidity.

(3) Good tenacity, hot tirdness nature and wearable in medium temperature

(4) Empty quench in low Austenitizing temperature condition, little distortion after heat treatment.

6.Application  

(1) Used in hard plastic mold , aluminum, zinc alloy die-casting mold , forging hammer.

(2) high  speed precision forging die insertsdrawing dies, plate dies and edge or cold shears,etc.

(3) All products' technology request and dimensions  

Product show

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Workshop show

Hot Work Die Steel Round Bar H12 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:Can special steel be used in the chemical processing industry?
Yes, special steel can be used in the chemical processing industry. Special steel alloys are designed to have excellent resistance to corrosion, high temperatures, and chemical reactions, making them suitable for use in various chemical processes. These steels can withstand harsh environments, such as exposure to corrosive chemicals, acids, and high-pressure conditions, ensuring the longevity and reliability of equipment and structures in the chemical processing industry.
Q:What are the applications of special steel in the defense sector?
Special steel has numerous applications in the defense sector due to its exceptional strength, durability, and resistance to extreme conditions. It is commonly used to manufacture various components of weapons and military vehicles, such as gun barrels, armor plates, missile casings, and aircraft landing gear. Additionally, special steel is utilized in the construction of submarines, warships, and military infrastructure due to its corrosion resistance properties. Overall, special steel plays a crucial role in enhancing the performance, efficiency, and safety of defense equipment and infrastructure.
Q:How does special steel perform in medical applications?
Special steel, also known as stainless steel, has proven to be a highly versatile and reliable material for various medical applications. Its unique properties make it an ideal choice for medical instruments, devices, and equipment. First and foremost, special steel is highly resistant to corrosion, which is crucial in medical settings where sterilization and frequent exposure to moisture are common. This resistance to corrosion ensures that the steel remains durable and does not degrade over time, making it suitable for long-term use. Additionally, special steel is biocompatible, meaning it does not cause any adverse reactions when in contact with living tissues or bodily fluids. This biocompatibility is essential for medical implants such as prosthetics, orthopedic screws, and dental implants, as it minimizes the risk of rejection or infection. Moreover, special steel offers excellent strength and hardness, allowing it to withstand the demanding conditions of medical procedures. It can maintain its structural integrity even under extreme temperatures or high-pressure environments, making it suitable for surgical instruments and cutting tools. Its hardness also enables sharp and precise cutting edges, ensuring accurate and effective surgical procedures. Furthermore, special steel is easy to clean and sterilize due to its smooth surface finish. This is crucial in medical applications where maintaining a sterile environment is of utmost importance to prevent the spread of infections. The smooth surface also prevents the accumulation of bacteria or other contaminants, reducing the risk of contamination. In conclusion, special steel has proven to be a highly reliable and versatile material for medical applications. Its corrosion resistance, biocompatibility, strength, and ease of sterilization make it ideal for medical instruments, devices, and implants. The exceptional performance of special steel in medical applications contributes to improving patient care, ensuring safety, and enhancing the overall effectiveness of medical procedures.
Q:What are the different grades and specifications of special steel?
Special steel encompasses a wide array of high-quality steels that are specifically engineered to possess exceptional properties and fulfill specific requirements for various industrial applications. These special steel grades and specifications are determined based on their composition, mechanical properties, and intended use. One commonly employed grading system for special steel is the AISI-SAE system, which classifies special steel into different grades based on their chemical composition. An example of a popular grade of special steel in this system is AISI-SAE 4140, known for its remarkable strength, toughness, and wear resistance. It contains elements like chromium, molybdenum, and carbon, contributing to its exceptional properties. Another extensively used grading system is the ASTM system, which categorizes special steel based on their mechanical properties and intended use. A commonly used grade in this system is ASTM A36, renowned for its excellent weldability, toughness, and low carbon content. It finds application in structural uses such as building construction and bridges. Specific grades and specifications of special steel are also tailored for particular industries or applications. For instance, stainless steel is a special steel grade with a high chromium content, offering superb corrosion resistance. It is widely employed in applications requiring resistance to moisture, chemicals, and high temperatures, such as the food industry or medical equipment manufacturing. Additionally, tool steel is a special steel grade designed specifically for fabricating cutting and shaping tools. It possesses high hardness, wear resistance, and heat resistance, making it suitable for activities like machining, forging, or die casting. Apart from these grades, special steel can be further classified based on specifications such as heat treatment requirements, surface finish, or dimensional tolerances. These specifications ensure that the special steel meets the specific requirements of the intended application. Overall, the diverse grades and specifications of special steel are customized to meet the varied needs of different industries and applications, providing superior performance, durability, and reliability.
Q:What are the different surface hardening techniques used for special steel?
There are several surface hardening techniques used for special steel, including carburizing, nitriding, induction hardening, flame hardening, and laser hardening.
Q:What are the different methods of coating special steel?
Enhancing the performance and safeguarding special steel from corrosion or damage can be achieved through various coating methods. Some commonly used techniques include: 1. Galvanization: A layer of zinc is applied to the steel, either through hot-dip galvanization or electroplating. This zinc layer offers exceptional corrosion resistance and acts as a sacrificial anode, preventing rusting. 2. Powder coating: An electrostatically applied dry powder is cured under heat, creating a protective layer that not only provides resistance to chipping, scratching, and corrosion but also adds an appealing finish. 3. Electroplating: The steel is immersed in a solution containing metal ions like chromium or nickel, and an electric current is passed through it. This process deposits the metal ions onto the steel surface, forming a thin protective layer that enhances corrosion resistance and gives a decorative appearance. 4. Cladding: A layer of corrosion-resistant material, such as stainless steel or titanium, is bonded to the surface of the special steel. Cladding offers improved resistance to corrosion, wear, and heat while maintaining the base steel's strength and mechanical properties. 5. Thermal spraying: Coating material like zinc or aluminum is heated to a molten or semi-molten state and then sprayed onto the steel surface using compressed air or a similar method. The sprayed material forms a protective layer that delivers excellent corrosion resistance and can also provide functional properties like thermal insulation or electrical conductivity. 6. Chemical conversion coating: The steel surface is treated with a chemical solution that reacts with the surface to create a thin layer of protective compound like phosphate or chromate. This conversion coating enhances corrosion resistance and promotes the adhesion of subsequent coatings. These are just a few examples of the numerous coating methods available for special steel. The selection of the most suitable method depends on factors like desired properties, intended application, and budget constraints. It is crucial to choose the appropriate coating method to ensure the longevity and performance of the special steel.
Q:What are the different quenching techniques used for special steel?
Some of the different quenching techniques used for special steel include oil quenching, water quenching, and polymer quenching. Oil quenching involves immersing the steel in oil to cool it down rapidly, while water quenching uses water to achieve a similar effect. Polymer quenching, on the other hand, involves using a specially formulated polymer solution to cool the steel. Each technique has its own advantages and disadvantages, and the choice of quenching technique depends on the specific requirements of the steel being treated.
Q:What are the different methods of surface ion nitriding for special steel?
There are several methods of surface ion nitriding that can be used for special steel. These methods include: 1. DC Plasma Nitriding: This method involves the use of a direct current (DC) plasma to ionize nitrogen gas and create a plasma atmosphere. The special steel is placed in the plasma chamber and a high voltage is applied to accelerate the ions towards the surface of the steel, resulting in nitriding. 2. RF Plasma Nitriding: RF (Radio Frequency) plasma nitriding is a similar process to DC plasma nitriding, but instead of using a direct current, a radio frequency power supply is used to generate the plasma. This method allows for better control of the nitriding process and can be used for more complex geometries. 3. Pulse Plasma Nitriding: In this method, short pulses of high voltage are applied to the steel surface, creating a plasma discharge. The pulses are repeated at regular intervals, allowing for precise control over the nitriding process. This method is often used for steels with sensitive properties that can be affected by prolonged exposure to high temperatures. 4. Plasma Assisted Nitriding: This method combines plasma nitriding with other surface treatment techniques, such as physical vapor deposition (PVD) or chemical vapor deposition (CVD). The steel is first coated with a thin layer of a reactive material, and then nitrided in a plasma atmosphere. This combination of techniques can enhance the surface properties of the special steel, such as wear resistance or corrosion resistance. 5. Glow Discharge Nitriding: This method involves placing the special steel in a chamber filled with a nitrogen-rich gas, such as ammonia. A high voltage is applied to create a glow discharge, which ionizes the gas and generates nitrogen ions that diffuse into the surface of the steel. This method is commonly used for small parts or components with complex shapes. It is important to note that the selection of the most appropriate method for surface ion nitriding of special steel depends on factors such as the desired properties, the geometry of the steel, and the specific requirements of the application.
Q:What are the different types of high-strength steel?
There are several different types of high-strength steel, including high-strength low-alloy (HSLA) steel, advanced high-strength steel (AHSS), ultra-high-strength steel (UHSS), and maraging steel.
Q:How is special steel used in the aerospace manufacturing process?
Special steel is used in the aerospace manufacturing process due to its exceptional strength, durability, and resistance to extreme temperatures. It is utilized in various components such as turbine engines, landing gear, and structural parts, ensuring the safety and reliability of aircraft. Additionally, special steel alloys are employed in critical areas where weight reduction is necessary, enhancing fuel efficiency and overall performance.

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