• Structural Alloy Steel Round Bar S235JR Special Steel System 1
  • Structural Alloy Steel Round Bar S235JR Special Steel System 2
  • Structural Alloy Steel Round Bar S235JR Special Steel System 3
  • Structural Alloy Steel Round Bar S235JR Special Steel System 4
Structural Alloy Steel Round Bar S235JR Special Steel

Structural Alloy Steel Round Bar S235JR Special Steel

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
30 m.t.
Supply Capability:
10000 m.t./month

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Specification

Type:
Alloy Steel
Shape:
Steel Round Bar
Standard:
AISI,ASTM,JIS,GB,BS,DIN,API,EN
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,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
Thickness:
as required
Length:
as required
Net Weight:
as required

Structural alloy steel round bar s235jr                                 

Characteristics

1) Even material.
2) Good machinability and polishability.
3) High toughness and high plasticity.
4)  High abrasive resistance in high temperature.
5) Excellent total hardenability.
6) Low deformability during heat treatment.
7) Better isotropy.
Application
1) Diecasting mould(mold, fixed block, upper die, jet nozzle, nitride thimble ).
2) Extrusion die(mold, supporting member,  choke blocks).
3) Hot press die. (aluminum, magnesium, copper alloy)
4) Parts, such as cold cutting, overlap, hot shears, wearable parts.
5) Important parts for aviation industry.

Main Product

Carbon Steel Round Bar

SS400, S235JR,Q235, ASTM A36, Fe360A, Fe360B,SM400A,080A15, SS41,E235B

SAE 1020, AISI 1020, ASTM 1020, S20C, 20#, 050A20

SAE 1045, AISI 1045, ASTM 1045, S45C, 45#,EN8, XC45, XC48, 45B, C45, CK45, CM45, 060A47, R683/IC45e

Alloy Steel Round Bar

40Cr, DIN 1.7035, SAE 5140, AISI 5140, ASTM 5140, SCr440, 41Cr4, 530A40, 42Cr4, 40X, R683/VII3

SAE4140,42CrMo, 42CrMo4, DIN 1.7225, SCM440,EN19, 42CD4, 708M40, R683/II3

SAE 4340, 40CrNiMoA, EN24, SNCM439, 817M40,40XMA, R683/III4

SAE 8620,,AISI 8620, ASTM 8620, 20CrNiMo,SNCM220, 805M20

SAE52100, AISI52100,ASTM E52100, GCr15, SUJ2, 100C6, 100Cr6, 1.3505, 534A99, IIIX15

Product show

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Workshop show

Structural Alloy Steel Round Bar S235JR Special 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: How does special steel contribute to the automotive emission reduction?
Special steel contributes to automotive emission reduction in several ways. Firstly, it is used in the manufacturing of lightweight components, such as the body and chassis, which helps to reduce the overall weight of the vehicle. This, in turn, improves fuel efficiency and reduces emissions. Additionally, special steel can be used to produce more durable and efficient engine parts, such as pistons and crankshafts, which enhance the overall performance of the engine and reduce emissions. Furthermore, special steel is also utilized in the production of exhaust systems, where its high temperature resistance and corrosion resistance properties help to improve the efficiency of catalytic converters, leading to lower emissions of harmful pollutants. Overall, the use of special steel in the automotive industry plays a crucial role in reducing emissions and promoting environmental sustainability.
Q: What is the hardness range of special steel?
The hardness range of special steel typically varies between 20 and 70 HRC (Rockwell Hardness Scale).
Q: What are the main alloying elements in special steel?
The main alloying elements in special steel can vary depending on the specific type or grade of steel. However, some common alloying elements found in special steel include chromium, nickel, molybdenum, vanadium, tungsten, and cobalt. These alloying elements are added to steel to enhance its properties such as corrosion resistance, strength, hardness, and heat resistance. Each alloying element has its own unique effect on the steel, allowing for the creation of specialized steel grades for various applications in industries such as aerospace, automotive, oil and gas, and construction.
Q: How does special steel perform in terms of corrosion resistance?
Special steel performs exceptionally well in terms of corrosion resistance. It is specifically designed and engineered to have enhanced resistance against corrosion compared to standard steel. This is achieved through various alloying elements and specific heat treatment processes that create a protective barrier against corrosive elements such as moisture, chemicals, and atmospheric conditions. As a result, special steel exhibits excellent durability and longevity even in corrosive environments, making it a preferred choice in industries where corrosion resistance is crucial, such as marine, oil and gas, and chemical industries.
Q: How is bearing steel used in the manufacturing of bearings?
Bearing steel is specifically designed for the manufacturing of bearings due to its high hardness, wear resistance, and excellent rolling contact fatigue strength. This type of steel is used to produce the inner and outer rings, as well as the rolling elements of bearings. It undergoes a specialized heat treatment process to enhance its mechanical properties and ensure proper microstructure. The use of bearing steel in manufacturing ensures the durability and longevity of bearings, allowing them to withstand heavy loads, high temperatures, and corrosive environments.
Q: What are the advantages of using special steel in industrial applications?
Using special steel in industrial applications has several advantages. Firstly, it offers exceptional strength and durability, making it suitable for heavy-duty tasks. The unique composition and manufacturing process of special steel result in a material that can withstand high levels of stress, extreme temperatures, and harsh environmental conditions. This makes it ideal for industries such as construction, automotive, and manufacturing, where reliable and long-lasting materials are required. Secondly, special steel exhibits excellent corrosion resistance. It can resist the damaging effects of moisture, chemicals, and other corrosive agents, which is crucial in industries like marine, oil and gas, and chemical processing. The corrosion resistance of special steel reduces the need for frequent maintenance and replacement, saving both time and costs for industrial applications. Furthermore, special steel offers superior machinability and formability. It can be easily shaped, cut, and welded to meet specific design requirements. This versatility allows for complex and intricate designs in various industrial applications, including machinery, tools, and equipment. Another advantage of special steel is its ability to maintain its properties at high temperatures. It has excellent heat resistance, ensuring that it remains strong and stable even under extreme heat conditions. This makes special steel suitable for applications involving high-temperature environments, such as aerospace, power generation, and furnace components. Additionally, special steel can exhibit excellent wear resistance and hardness. It can withstand abrasion, friction, and impact, making it ideal for applications where materials are subjected to heavy wear and tear, such as mining, construction equipment, and cutting tools. The wear resistance of special steel ensures that components have a longer lifespan and require less frequent replacement. In conclusion, the use of special steel in industrial applications brings forth exceptional strength and durability, corrosion resistance, machinability and formability, heat resistance, and wear resistance. These properties make special steel a preferred choice for a wide range of industries, contributing to improved performance, longevity, and cost-effectiveness.
Q: How does special steel perform in high-temperature oxidation resistance?
Special steel is specifically designed to have excellent high-temperature oxidation resistance. This type of steel contains alloying elements such as chromium, aluminum, and silicon, which form a protective oxide layer on the surface when exposed to high temperatures. This oxide layer acts as a barrier, preventing further oxidation and corrosion of the steel. The high-temperature oxidation resistance of special steel is crucial in applications where the material is exposed to extreme heat and oxidation, such as in gas turbines, heat exchangers, and furnaces. The protective oxide layer helps to maintain the integrity and strength of the steel, even under harsh conditions. Furthermore, special steel also exhibits excellent creep resistance at high temperatures. Creep refers to the gradual deformation of a material under a constant load and elevated temperatures. The unique composition of special steel provides it with the ability to resist creep deformation, enhancing its overall performance and reliability in high-temperature environments. In conclusion, special steel performs exceptionally well in high-temperature oxidation resistance due to its alloying elements and the formation of a protective oxide layer. Its ability to resist oxidation and maintain its structural integrity at elevated temperatures makes it a preferred choice for various industrial applications.
Q: How is special steel used in the marine industry?
Special steel is used in the marine industry for various applications such as building ship hulls, constructing offshore platforms, manufacturing propeller shafts, and fabricating marine equipment. Its high strength, corrosion resistance, and durability make it ideal for withstanding harsh marine environments and ensuring the safety and reliability of marine structures and components.
Q: How does tool steel maintain its hardness at high temperatures?
Tool steel maintains its hardness at high temperatures primarily due to its high carbon content and the presence of other alloying elements. The carbon in tool steel forms hard and wear-resistant carbides, which help retain hardness even at elevated temperatures. Additionally, alloying elements such as chromium, tungsten, molybdenum, and vanadium contribute to the formation of secondary carbides, which further enhance the steel's resistance to softening and maintain its hardness under high heat conditions.
Q: How is special steel used in the production of bearings for high-speed applications?
Special steel is used in the production of bearings for high-speed applications due to its unique properties such as high strength, hardness, and resistance to wear and fatigue. These bearings are subjected to intense loads and rotational speeds, and special steel helps ensure optimal performance and longevity. The use of special steel in bearing production allows for improved precision, reduced friction, and increased durability, ultimately enabling bearings to withstand the demanding requirements of high-speed applications.

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