• 40Mn Hot Rolled Steel Plate High Alloy Steel Sheet System 1
  • 40Mn Hot Rolled Steel Plate High Alloy Steel Sheet System 2
40Mn Hot Rolled Steel Plate High Alloy Steel Sheet

40Mn Hot Rolled Steel Plate High Alloy Steel Sheet

Ref Price:
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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
50000 m.t./month

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Item specifice

Type:
Alloy Steel
Shape:
Steel Round Bar

40Mn Hot Rolled Steel Plate High Alloy Steel Sheet

 

Product Description:

1.40Mn hot rolled steel plate and sheet with high strength
2. Thickness:8mm-250mm, width:1500mm-2250mm 

3.ISO and BV certificate 

4.Standard:GB/T 3274-2007,JIS G3106,DIN17100, ASTM, BS4360 

5.Delivery condition: According to the requirements of customers, the carbon steel mild steel plate and sheet could be hot rolled, cold rolled, normalized, annealed, tempered, normalized+ tempered and tempering. 

6.Application:The low alloy steel plate and sheet with high strength is mainly used in making Plants, general constructions, different kinds of engineering machines such as electric wheels skip, mine car, excavator, loaders, bulldozers, industrial blower, various cranes used in mines and other structures.

 

Specification:

Material

40Mn

Round bar

Dia(mm)

16-600

Process

EAF + LF + VD + Forged + Heat Treatment (optional)

Length (mm)   

Max 12000

Heat treatment

Normalized / Annealed / Quenched / tempered

Flat bar

Thickness(mm) 

8-500

Delivery condition

Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)

Width(mm)

70-200

Test

Ultrasonic test according to SEP 1921-84 D/d

Length (mm)   

Max 12000


 

Chemical Composition:

C

Si

Mn

Cr

Ni

Cu

0.5~0.8

0.17~0.37

0.25~1.2

≤0.25

≤0.30

≤0.25

 

Packing and Delivery:

Packing in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)

Delivery Detail: Approx.45 days

 

Usage and Applications:
1.40Mn Hot Rolled Steel Plate High Alloy Steel Sheet is used in a large number of architectural and engineering structures. Or it can be used in construction of plants for the production of steel house frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc.

2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.

3. Some especial material steel round bar can be used for main shaft of steamer, hummer shank, with big section and supper force.

 

Product Show:


40Mn Hot Rolled Steel Plate High Alloy Steel Sheet

40Mn Hot Rolled Steel Plate High Alloy Steel Sheet

 


Q:What are the common challenges in heat treatment of special steel?
To achieve the desired material properties, careful attention must be given to several challenges encountered in the heat treatment of special steel. One primary challenge revolves around the necessity for meticulous temperature control throughout the heating and cooling stages. Special steels typically have specific temperature ranges for heat treatment that must be strictly adhered to in order to attain the desired microstructure and mechanical properties. Failing to maintain precise temperature control can result in inadequate or inconsistent heat treatment, ultimately leading to suboptimal material performance. Another challenge lies in the potential distortion or warping of the steel components during the heat treatment process. Special steels often possess intricate designs or complex shapes, making them more susceptible to distortion when subjected to high temperatures. This distortion can have adverse effects on the overall quality and dimensional accuracy of the final product. Consequently, careful consideration must be given to the selection of suitable heating and cooling methods, as well as the utilization of fixtures or jigs to minimize distortion. Moreover, special steels may contain alloying elements that significantly influence the heat treatment process. Elements like chromium, molybdenum, or vanadium can alter the steel's hardenability, tempering response, or transformation behavior. Their presence can introduce additional challenges when determining the optimal heat treatment parameters, necessitating adjustments to heating and cooling rates, soak times, or quenching media. Lastly, achieving uniformity in heat treatment across a batch of special steel components can prove to be challenging. Variations in size, shape, or composition within a batch can result in inconsistent heat treatment outcomes. Controlling the heating and cooling rates, ensuring proper circulation of the heat treatment media, and implementing effective process monitoring techniques are essential in achieving consistent and uniform material properties. In conclusion, the heat treatment of special steel encompasses challenges such as precise temperature control, distortion/warping, the influence of alloying elements, and achieving uniformity across a batch. Successfully addressing these challenges requires a comprehensive understanding of the steel's composition, meticulous process planning, and the utilization of appropriate process controls and monitoring techniques.
Q:How does special steel contribute to the flexibility of products?
Special steel contributes to the flexibility of products by providing enhanced strength, durability, and resistance to corrosion. Its unique properties allow manufacturers to design and produce products that can withstand high stress, extreme temperatures, and harsh environments. This flexibility enables the creation of a wide range of products that can be used in diverse industries, including automotive, aerospace, construction, and manufacturing.
Q:How does special steel perform in cryogenic ductility?
Special steel exhibits excellent performance in terms of cryogenic ductility. Cryogenic ductility refers to a material's ability to retain its strength and flexibility even at extremely low temperatures. Special steels are engineered specifically to endure harsh conditions, including cryogenic temperatures, making them suitable for applications such as LNG storage tanks, aerospace components, and superconductors. The composition of special steel is one of the key reasons for its exceptional cryogenic ductility. Generally, special steels are alloyed with elements like nickel, chromium, and molybdenum, which enhance their mechanical properties and resistance to low temperatures. These alloying elements provide the steel with increased strength, toughness, and resistance to brittle fracture, even in extremely cold environments. Moreover, special steels go through rigorous testing and quality control measures to ensure their performance in cryogenic conditions. This involves testing for parameters such as impact toughness, fracture toughness, and notch toughness, which are critical in assessing a material's ability to withstand brittle failure at low temperatures. Additionally, the manufacturing processes employed for special steel contribute to its excellent cryogenic ductility. Methods like vacuum induction melting and controlled cooling are often utilized to produce special steels. These techniques aid in eliminating impurities and improving the material's microstructure. This refined microstructure enhances the steel's ductility, enabling it to retain its mechanical properties even in cryogenic temperatures. In conclusion, special steel exhibits exceptional performance in terms of cryogenic ductility due to its meticulously designed composition, stringent testing, and advanced manufacturing processes. These factors make it a dependable and preferred choice for various industries that require materials capable of withstanding extreme cold conditions while maintaining strength and flexibility.
Q:How is special steel used in the aerospace industry?
Special steel is used in the aerospace industry for various applications, including the manufacturing of critical components such as jet engines, landing gear, and airframe structures. Due to its exceptional strength, corrosion resistance, and heat resistance properties, special steel ensures the safety, durability, and performance of aircraft while operating under extreme conditions.
Q:How is special steel used in the textile supply chain?
Special steel is used in various applications within the textile supply chain, primarily in the manufacturing of textile machinery and equipment. It is utilized for components such as shafts, bearings, gears, and springs, which are crucial for the smooth functioning and efficiency of textile machinery. Special steel's high strength, durability, and resistance to wear and corrosion make it an ideal material for these demanding applications. Additionally, special steel may also be employed in the production of textile cutting tools and needles, further enhancing the quality and precision of textile products.
Q:What are the main advantages of using special steel in the food processing industry?
The main advantages of using special steel in the food processing industry are its exceptional strength and durability, resistance to corrosion and bacteria growth, and ease of cleaning and maintenance. Special steel is highly resistant to wear and tear, ensuring longevity and reducing the need for frequent replacements. Its corrosion resistance properties prevent contamination and maintain the integrity of food products. Additionally, special steel's smooth surface and non-porous nature make it easy to clean, ensuring optimal hygiene standards in food processing facilities.
Q:How does special steel perform in terms of machinability?
Special steel generally has good machinability due to its composition and properties. It is often designed or treated to have improved cutting and machining characteristics, such as increased hardness, toughness, and wear resistance. This allows for efficient and accurate machining operations, resulting in high productivity, better surface finish, and reduced tool wear. However, the machinability of special steel can vary depending on the specific grade, heat treatment, and machining conditions used.
Q:Can special steel be used in the production of jewelry?
Yes, special steel can be used in the production of jewelry. It is commonly used in industrial and contemporary jewelry designs due to its durability, strength, and unique aesthetic appeal. However, it is less commonly used in traditional or fine jewelry where precious metals like gold and silver are preferred.
Q:Can special steel be used in the oil and gas equipment manufacturing industry?
Yes, special steel can be used in the oil and gas equipment manufacturing industry. Special steels, such as stainless steel and alloy steel, are commonly utilized in this industry due to their superior corrosion resistance, high strength, and ability to withstand harsh operating conditions. These steels ensure the reliability and durability of oil and gas equipment, making them suitable for applications such as pipelines, valves, and drilling equipment.
Q:What are the properties of stainless tool steel?
Stainless tool steel possesses several properties that make it highly desirable for various applications. Firstly, it exhibits excellent corrosion resistance due to its high chromium content, making it resistant to rust and tarnish. Secondly, it has high hardness and wear resistance, allowing it to retain its cutting edge and withstand heavy use without dulling or chipping easily. Moreover, stainless tool steel has good toughness, which means it can withstand impact and shock loads without fracturing. It also demonstrates good dimensional stability, meaning it maintains its shape and size even under extreme temperatures and mechanical stress. Lastly, stainless tool steel is known for its machinability and can be easily formed and fabricated into various shapes and sizes.

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