Steel SCr440 Mild Carbon Steel Special Steel

Ref Price:
Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month
  • OKorder Service Pledge
  • Quality Product
  • Order Online Tracking
  • Timely Delivery
  • OKorder Financial Service
  • Credit Rating
  • Credit Services
  • Credit Purchasing

Add to My Favorites

Follow us:

Item specifice

Type:
Carbon Steel
Shape:
Steel Round Bar
Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Thickness:
as required
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round
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
Length:
as required
Net Weight:
as required

Specifications                                  GCr15 steel                 

1.round steel 

2.ISO9001:2008 certificate

3.Competive price and Best quality

4.On-time delivery


Chemical Composition(GB)%

CSiMnCrNi
0.37-0.440.17-0.370.50-0.800.80-1.10≤0.30

 

Heat Treatment

ItemTemperature ℃Hardness
Normalizing850-870179-229HB

 

Characterstics: Which has the best comprehensive mechanical properties

 

Applications

1.Can be used for drawing die and plastic mould
2.Can be used for middle and small punch


Product show:

.jpg

Workshop show:

Steel SCr440 Mild Carbon Steel Special Steel

FAQ:

1, Your advantages?

     professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale

2, Test & Certificate?

      SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem

3, Payment Terms?

    30% TT as deposit and 70% before delivery.

    Irrevocable L/C at sight.

4, Trading Terms?

    EXW, FOB, CIF, FFR, CNF

5, After-sale Service?

     We provides the services and support you need for every step of our cooperation. We're the business partner you can trust.

     For any problem, please kindly contact us at any your convenient time.

     We'll reply you in our first priority within 24 hours.



Q:
Special steel is widely used in mining equipment due to its high strength, durability, and resistance to wear, corrosion, and impact. It finds applications in various mining equipment components such as drill bits, crushers, conveyor systems, and grinders. These specialized steels can withstand extreme conditions, enhance productivity, and ensure safety in mining operations.
Q:
Some of the different alloying elements used in special steel include chromium, nickel, molybdenum, vanadium, tungsten, and cobalt. These elements are added in varying amounts to enhance the steel's specific properties such as corrosion resistance, strength, hardness, and heat resistance.
Q:
Certainly, luxury goods can certainly benefit from the use of special steel in their production. High-quality materials are often necessary to ensure the durability, exclusivity, and overall premium quality of luxury items. Special steels, such as stainless steel, alloy steel, or carbon steel, possess a variety of desirable properties that make them suitable for manufacturing luxury goods. For example, stainless steel is commonly utilized in the creation of luxury watches, jewelry, and accessories because of its resistance to corrosion, shiny appearance, and ability to endure daily wear and tear. Furthermore, certain alloy steels offer exceptional strength and toughness, making them perfect for luxury car components, high-end knives, or designer furniture. Incorporating special steel into luxury goods not only enhances their aesthetic appeal but also contributes to their longevity and value. These materials can be skillfully fashioned into intricate designs, enabling manufacturers to produce unique and exceptional products that cater to the discerning preferences of luxury consumers. All in all, special steel possesses a wide range of qualities that are highly sought after in the production of luxury goods, making it the preferred choice among designers and manufacturers in this industry.
Q:
Tool steel, a specialized type of steel, is specifically engineered for the manufacturing of tools such as drills, dies, and cutting instruments. It boasts several key attributes that render it suitable for these applications. Primarily, tool steel is renowned for its exceptional hardness. It contains a substantial amount of carbon, typically ranging from 0.5% to 1.5%, which contributes to its hardness. This hardness enables tool steel to withstand wear and abrasion, making it perfect for cutting and shaping materials. Another crucial characteristic of tool steel is its remarkable toughness. It possesses the ability to endure high impact and shock loads without fracturing or breaking. This toughness is vital in tooling applications where tools are subjected to heavy loads and forces. Tool steel also exhibits superb heat resistance. It possesses a high melting point, allowing it to retain its strength and hardness even at elevated temperatures. This heat resistance is essential in applications where tools are exposed to high temperatures during cutting or shaping processes. Furthermore, tool steel possesses excellent dimensional stability and machinability. It experiences minimal distortion and shrinkage during heat treatment, ensuring that the tool retains its shape and size. Additionally, tool steel is easily machined, enabling the production of intricate shapes and designs. Overall, the prominent characteristics of tool steel encompass high hardness, toughness, heat resistance, dimensional stability, and machinability. These properties establish tool steel as an ideal material for the production of tools that necessitate high strength, durability, and performance.
Q:
Special steel can encounter several different types of corrosion, including: 1. Uniform corrosion: This is the most common type of corrosion, where the entire surface of the steel corrodes evenly. It usually occurs when the steel is exposed to an aggressive environment, such as a corrosive chemical or high humidity. 2. Pitting corrosion: Pitting corrosion is characterized by localized corrosion attack in the form of small pits or cavities on the steel surface. It can occur due to the presence of chloride ions or other aggressive substances, and it can be particularly detrimental as it can lead to the formation of cracks. 3. Crevice corrosion: Crevice corrosion occurs in narrow gaps or crevices between steel surfaces, such as junctions, gaskets, or under deposits. It is caused by the restricted access of oxygen and the accumulation of corrosive agents, leading to localized corrosion and potential damage. 4. Galvanic corrosion: Galvanic corrosion occurs when two dissimilar metals are in contact with each other in the presence of an electrolyte. In special steel, this can happen when it is in contact with another metal in a corrosive environment, resulting in accelerated corrosion of the less noble metal. 5. Stress corrosion cracking: This type of corrosion occurs due to the combined action of tensile stress and a corrosive environment. It can cause the steel to crack and fail, even under relatively low stress levels. Special steel is often susceptible to stress corrosion cracking in specific environments, such as high chloride or acidic solutions. 6. Intergranular corrosion: Intergranular corrosion occurs along the grain boundaries of steel, usually due to the segregation of impurities during the steel's manufacturing process. It can weaken the material and lead to premature failure. To prevent or mitigate these types of corrosion, special steel can be treated with various corrosion-resistant coatings, such as paints, metallic coatings, or alloys with high resistance to corrosion. Additionally, proper material selection, design considerations, and regular maintenance can also help minimize the risk of corrosion in special steel applications.
Q:
Spring steel is commonly used in the automotive industry for its ability to withstand high stress and maintain its shape. It is primarily used for manufacturing various suspension components such as springs, stabilizer bars, and torsion bars. These spring steel components provide stability, improve handling, and enhance overall vehicle performance and safety.
Q:
The main characteristics of electrical steel forgings include high magnetic permeability, low core loss, and high electrical resistivity. These properties make electrical steel forgings ideal for applications in electrical transformers, motors, and generators, where efficient magnetic performance and minimal energy loss are crucial. Additionally, electrical steel forgings are known for their excellent mechanical strength, thermal stability, and resistance to corrosion, making them durable and reliable in demanding environments.
Q:
There are several different surface hardening methods that are commonly used for special steel. These methods are employed to improve the hardness and wear resistance of the steel, making it suitable for specific applications. Some of the most commonly used surface hardening methods for special steel include: 1. Carburizing: Carburizing is a heat treatment process that involves introducing carbon into the surface of the steel. This is typically done by heating the steel in a carbon-rich environment, such as a gas or liquid containing carbon. The carbon diffuses into the steel, forming a high-carbon layer on the surface. This process increases the hardness and wear resistance of the steel, making it suitable for applications that require high strength and durability. 2. Nitriding: Nitriding is a surface hardening process that involves introducing nitrogen into the surface of the steel. This is typically done by heating the steel in an atmosphere of ammonia gas. The nitrogen diffuses into the steel, forming a nitride layer on the surface. Nitrided steel exhibits high hardness, improved wear resistance, and increased fatigue strength. This method is commonly used for applications that require high surface hardness, such as gears, bearings, and tools. 3. Induction hardening: Induction hardening is a localized surface hardening method that involves heating only specific areas of the steel using electromagnetic induction. The heated areas are then rapidly quenched, resulting in a hardened surface layer. Induction hardening is often used for components that require high surface hardness, such as shafts, gears, and camshafts. It offers precise control over the hardened area, resulting in improved wear resistance and fatigue strength. 4. Flame hardening: Flame hardening is a surface hardening method that involves heating the steel surface using a high-temperature flame and then rapidly quenching it. The localized heating and quenching process produces a hard surface layer, while the core of the steel remains relatively unchanged. This method is commonly used for large and complex-shaped components, such as axles, crankshafts, and machine tool slides. 5. Laser hardening: Laser hardening is a precise and localized surface hardening method that involves using a high-energy laser beam to heat and melt the surface of the steel. The laser beam is moved across the surface to create a hardened layer. Laser hardening offers precise control over the hardened area, resulting in improved wear resistance and fatigue strength. It is commonly used for small and intricate components, such as cutting tools, molds, and dies. These are just a few of the surface hardening methods commonly used for special steel. Each method offers unique advantages and is chosen based on the specific requirements of the application. By employing these surface hardening methods, special steel can be tailored to meet the demands of various industries, including automotive, aerospace, and manufacturing.
Q:
Special steel is engineered to exhibit outstanding performance when exposed to high temperatures, particularly in terms of oxidation. It is fabricated utilizing alloys that possess a significant quantity of chromium, which generates a shielding chromium oxide layer on the steel's surface once confronted with elevated temperatures. This chromium oxide layer acts as a barrier, thwarting further oxidation and safeguarding the steel against corrosion. The generous amount of chromium present in special steel also heightens its resistance to scaling, which refers to the development of thick layers of oxide on the steel's surface. Scaling can compromise the steel's integrity and result in failure when subjected to high temperatures. Nonetheless, special steel retains its structural soundness even at elevated temperatures due to its capacity to resist scaling. Apart from chromium, special steel may contain additional alloying elements like nickel, molybdenum, and vanadium. These elements contribute to the steel's resistance to high-temperature oxidation by further augmenting the formation and stability of the protective oxide layer. Overall, special steel exhibits exceptional performance under high-temperature oxidation circumstances. Its distinctive composition and alloying elements enable it to establish a protective oxide layer, resist scaling, and retain its strength and integrity even at elevated temperatures. As a result, it is extensively utilized in various industries that involve high-temperature applications, including power generation, aerospace, and petrochemical industries.
Q:
The specific requirements for special steel used in the automotive piston industry are designed to ensure high performance, durability, and efficiency of the pistons. These requirements include: 1. High strength: Special steel used in automotive pistons must possess high tensile strength and hardness to withstand the extreme pressures and temperatures generated during combustion. 2. Heat resistance: The steel must have excellent heat resistance properties to withstand the intense heat generated by the combustion process without deforming or losing strength. 3. Wear resistance: Pistons undergo constant friction and wear against the cylinder walls. Therefore, the special steel used must have good wear resistance to minimize the wear and tear and prolong the lifespan of the piston. 4. Low thermal expansion: The steel should have a low coefficient of thermal expansion to prevent excessive expansion and contraction during temperature variations, ensuring a tight seal between the piston and cylinder walls. 5. Corrosion resistance: Pistons are exposed to various corrosive elements, including combustion by-products and engine oil. Special steel used in piston manufacturing must have good corrosion resistance to prevent premature deterioration and failure. 6. Fatigue resistance: The steel should possess excellent fatigue resistance to withstand the repetitive stress cycles experienced by the piston during engine operation. 7. Machinability: Special steel used in pistons should be easily machinable to achieve precise dimensions and tolerances necessary for optimal performance. 8. Cost-effectiveness: While meeting the above requirements, special steel used in the automotive piston industry should also be cost-effective to ensure profitability for the manufacturers. By meeting these specific requirements, special steel used in the automotive piston industry contributes to the overall performance, reliability, and longevity of the piston, which in turn enhances the efficiency and durability of the entire engine system.

1. Manufacturer Overview

Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range

Send your message to us

This is not what you are looking for? Post Buying Request