• Special Steel Aisi 4130 Alloy Steel Material Steel Round Bar System 1
  • Special Steel Aisi 4130 Alloy Steel Material Steel Round Bar System 2
Special Steel Aisi 4130 Alloy Steel Material Steel Round Bar

Special Steel Aisi 4130 Alloy Steel Material Steel Round Bar

Ref Price:
$300.00 - 500.00 / m.t. get latest price
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:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Surface Treatment:
Coated,Galvanized,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
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 aisi 4130 alloy steel

       Round bar 

Diameter(mm)

Length (mm)


10~300

2000~5800


         Plate

Thickness(mm)  

Width (mm)       

Length (mm)    

20~70

105~610

2000~5800

The specification can be customised!

2.Chemical compositon of aisi 4130 alloy steel

NO.

C

Mn

Si

Cr

Mo

Ni

P

S

Aisi 4130

0.38~0.43

0.60~0.80

0.15~0.35

0.70~0.90

0.20~0.30

1.65~2.00

≤0.035

≤0.040

3. Mechanical properties of aisi 4130 alloy steel

Tensile str. (N/mm2)

Yield point (N/mm2)

                Elongation (%)

              Hardness

               980

835

                          12

269 

4.Heat treatment of aisi 4130 alloy steel

1. Forging:Heat slowly and uniformly to 1000°C. After forging cool slowly.

2. Annealing: 780-800`C slow cooling

5.Characteristic of aisi 4130 alloy steel

(1)Good purity and homogeneity.

(2) Good machinability (Roughing, grinding and drilling).

(3) Good dimensional stability during heat treatment.

(4) Excellent preparation for nitriding, both ionic and gaseous, induction hardening to increase the mechanical properties.

6.Application of aisi 4130 alloy steel

(1)It is widely used in high-strength forgings, such as traction gear, supercharger drive gear,  rear axle, the load of connecting rod, spring clip; 

(2)It also manufactured tool joints and finish tools which used for oil wells below 2000m deep.

(3)For making welding parts; board;welding structure;high pressure pipe in the chemical industry. 

(4)For making temperature under 450°C‘s fastener in the steam turbine, boiler manufacturing.

(5)For making under the 500°C and the high pressure's flange and nut.

(6)especially used to produce the conduit pipe which is under 400°C and the barometric pressure is 300.


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

Product show

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Workshop show

Special Steel Aisi 4130 Alloy Steel Material Steel Round Bar


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: How does special steel ensure product reliability?
Special steel ensures product reliability through its unique properties and manufacturing processes. Special steel is designed to have exceptional strength, durability, and resistance to corrosion, wear, and fatigue. These enhanced properties make it suitable for various critical applications where reliability is paramount, such as in automotive, aerospace, energy, and infrastructure industries. Special steel undergoes rigorous quality control measures during its production to ensure consistency and adherence to specific standards. This helps in minimizing variations and defects, ensuring that the final product meets the required specifications and performs reliably under challenging conditions. Additionally, special steel's ability to be tailored and customized enables manufacturers to create products that are precisely engineered to withstand specific operating environments, further enhancing their reliability.
Q: What are the different quality control measures for special steel production?
There are several quality control measures for special steel production, including thorough material inspections, precise chemical composition analysis, stringent dimensional and shape control, non-destructive testing methods such as ultrasonic and magnetic particle inspections, and rigorous mechanical property evaluations. Additionally, heat treatment processes and surface treatments are closely monitored to ensure the desired properties and surface finish of the special steel. Continuous monitoring and quality checks are essential throughout the production process to maintain the highest standards and meet customer requirements.
Q: What are the main factors affecting the wear resistance of special steel?
There are several main factors that affect the wear resistance of special steel. Firstly, the composition of the steel plays a crucial role. The addition of certain alloying elements, such as chromium, vanadium, and tungsten, can significantly enhance the wear resistance of the steel. These elements form hard carbides or nitrides within the steel matrix, which increase its hardness and resistance to wear. Secondly, the heat treatment process used on the steel greatly influences its wear resistance. Through processes like quenching and tempering, the steel can be hardened to achieve a desired level of wear resistance. The heat treatment also helps in refining the microstructure of the steel, making it more resistant to wear and deformation. Thirdly, the microstructure of the steel is another important factor. The presence of fine grains and a homogeneous distribution of carbides or other reinforcing phases within the steel matrix greatly enhances its wear resistance. Additionally, the presence of retained austenite, a metastable phase, can also contribute to improved wear resistance. Furthermore, the hardness of the steel is a key determinant of its wear resistance. A higher hardness level generally translates to better wear resistance, as it provides resistance against the abrasive forces acting on the steel surface. Lastly, the design and surface finish of components made from special steel also affect their wear resistance. The shape, size, and surface roughness of the components can influence the distribution and magnitude of the contact stresses on the steel, thereby affecting its wear resistance. In conclusion, the wear resistance of special steel is influenced by factors such as its composition, heat treatment, microstructure, hardness, and the design and surface finish of the components. By carefully considering these factors, engineers can optimize the wear resistance of special steel for various applications.
Q: Can special steel be used for making aerospace engine components?
Yes, special steel can be used for making aerospace engine components. Special steel alloys, such as stainless steel and nickel-based alloys, are often utilized in the aerospace industry due to their high strength, corrosion resistance, and ability to withstand extreme temperatures and pressures. These properties make special steel an ideal choice for critical engine parts like turbine blades, heat exchangers, and exhaust systems, ensuring optimal performance and safety in aerospace applications.
Q: What are the properties of weathering steel?
Weathering steel, also known as corten steel, possesses several distinctive properties. It exhibits high resistance to corrosion, making it suitable for outdoor structures without the need for protective coatings. Its unique composition allows for the formation of a stable rust-like appearance, providing an aesthetically pleasing and natural finish. Moreover, weathering steel has excellent strength and durability, making it ideal for various applications, including bridges, buildings, and architectural elements.
Q: How does special steel perform in cryogenic applications?
Special steel is renowned for its exceptional performance in cryogenic applications, characterized by extremely low temperatures that fall below -150 degrees Celsius (-238 degrees Fahrenheit). Unlike regular steel, which tends to become brittle and weaker in such conditions, special steel, also referred to as cryogenic steel or low-temperature steel, is specifically engineered to withstand these extreme cold temperatures. One of the key advantages of special steel lies in its ability to maintain its mechanical properties even at cryogenic temperatures. It retains its strength, toughness, and ductility, enabling it to endure the stresses and strains imposed on it in cryogenic environments. As a result, special steel finds application in various fields, including aerospace, energy, and healthcare, where it is used in cryogenic storage tanks, pipelines, and equipment. Another significant feature of special steel is its excellent resistance to brittle fracture at low temperatures. This is of utmost importance since brittle fractures occur when materials become excessively brittle and fail under stress. The distinct composition and processing methods employed in special steel help prevent such fractures, ensuring the integrity and safety of components within cryogenic systems. Furthermore, special steel possesses a low coefficient of thermal expansion, meaning it undergoes minimal dimensional changes when exposed to temperature fluctuations. This characteristic proves highly advantageous in cryogenic applications as it preserves the stability and reliability of equipment and structures. Additionally, special steel exhibits commendable corrosion resistance, which is vital in cryogenic environments where the presence of moisture and certain chemicals can accelerate corrosion processes. By resisting corrosion, special steel enhances the longevity and durability of components, thereby reducing maintenance and replacement costs. In conclusion, special steel is the preferred choice for cryogenic applications due to its ability to maintain mechanical properties, resist brittle fracture, display low thermal expansion, and exhibit corrosion resistance. These properties render it a dependable and efficient material for use in cryogenic systems, providing the necessary strength and durability even under extremely low-temperature conditions.
Q: What are the different shot blasting techniques used for special steel?
Some of the different shot blasting techniques used for special steel include wheel blasting, air blasting, and tumble blasting. Wheel blasting uses a high-speed rotating wheel to propel abrasive particles at the steel surface, while air blasting involves using compressed air to propel the particles. Tumble blasting, on the other hand, involves placing the steel in a rotating drum and allowing the abrasive particles to impact the surface as the drum rotates. These techniques help to remove surface contaminants, improve surface finish, and enhance the overall quality of the special steel.
Q: How does special steel contribute to reducing product maintenance requirements?
Special steel contributes to reducing product maintenance requirements by offering superior strength, durability, and resistance to corrosion and wear. This means that products made with special steel are less likely to break, degrade, or require frequent repairs or replacements. Its high-quality properties enable longer product lifespans and enhanced performance, ultimately minimizing maintenance efforts and costs for users.
Q: What are the properties of low-alloy steel?
Low-alloy steel is a type of steel that contains a small percentage of alloying elements, typically less than 5%. These alloying elements enhance the strength, hardness, and corrosion resistance of the steel. Additionally, low-alloy steel often exhibits improved toughness, weldability, and formability compared to carbon steel. The specific properties of low-alloy steel can vary depending on the alloying elements used, but in general, it offers a cost-effective solution for applications that require high strength and durability.
Q: What are the different aerospace grades of special steel?
There are several aerospace grades of special steel that are commonly used in the aerospace industry. These grades are specifically designed to meet the high-performance requirements and stringent safety standards of aerospace applications. Some of the different aerospace grades of special steel are: 1. 300M: This grade of steel is known for its exceptional strength and toughness. It is commonly used in aircraft landing gears, structural components, and other high-stress applications. 2. 4340: 4340 steel is a widely used alloy steel in aerospace applications. It has high strength and good hardenability, making it suitable for gears, shafts, and other critical components. 3. 17-4 PH: This stainless steel grade offers a combination of high strength, corrosion resistance, and good toughness. It is commonly used in aerospace applications such as aircraft engine components, landing gears, and structural parts. 4. 15-5 PH: Similar to 17-4 PH, 15-5 PH stainless steel also offers high strength and corrosion resistance. It is often used in aerospace applications where weight reduction is crucial, such as aircraft structural components. 5. 300 series stainless steels: Grades like 301, 302, and 304 are commonly used in aerospace applications due to their excellent corrosion resistance, low magnetic permeability, and good strength-to-weight ratio. These steels are used in aircraft structures, fuel tanks, and other components exposed to harsh environments. 6. Titanium alloys: While not technically steel, titanium alloys are widely used in aerospace applications due to their exceptional strength, low density, and high corrosion resistance. Grades like Ti-6Al-4V are commonly used in aircraft structures, engine components, and landing gears. These are just a few examples of the different aerospace grades of special steel used in the industry. Each grade offers specific properties and characteristics that make them suitable for various applications in the aerospace field.

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