Astm 1320/Aisi 4140 Alloy Steel Bar And Alloy Steel Rod
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 100000 m.t./month
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Specification
Type:
Carbon Steel,Alloy Steel,Stainless Steel,Deformed Steel,Gear Steel,Bearing Steel,Spring Steel
Shape:
Steel Billets,Steel Round Bar,Steel Angle,Steel Square Bar,Steel Flat Bar,Steel Wire Rod,Steel Sheet,Steel Coil
Technique:
Spring,EFW,Extruded,Saw,Forged,ERW,Cold Drawn,Cold Rolled,Hot Rolled
Surface Treatment:
Galvanized,Coated,PVDF Coated,Black,Bright,Polished,Chromed Passivation,Dry,Oiled,Color Coated,Copper Coated
Certification:
UL,BSI,API,CE,RoHS,IBR,BV,SGS,ISO
Thickness:
80-800mm
Width:
80-800mm
Length:
6-12m
Outer Diameter:
80-800mm
Net Weight:
100kg
Packaging:
seaworthy packaging
Astm 1320/Aisi 4140 Alloy Steel Bar And Alloy Steel Rod
Detailed Information of Astm 1320/Aisi 4140 Alloy Steel Bar And Alloy Steel Rod
| Name | Steel Round Bar |
| Shape | Round Bar/Square Bar/Flat Bar/Plate/Wire |
| Standard | GB/ASTM/SAE/AISI/DIN/JIS/EN/BS |
| Surface Treatment: | Black/Peeling/Polished/Machined |
| Delivery Condition: | Hot Rolled or Forged/Peeled or Black Surface |
| Test | SGS/UT 100% Elements Testing |
| Certificate: | ISO/Mill Certificate |
| Service: | 24 hours online service / |
| more than 20 years trading and manufacture | |
| Quality Assurance: | the third party inspection, such as SGS, BV, TUV…etc. is acceptable |
| Packaging Details: | Seaworthy Packaging or as per customer's packing instruction |
Product Overviews of Astm 1320/Aisi 4140 Alloy Steel Bar And Alloy Steel Rod
| Product Name | Typical Grades | Diameter(mm) | Standard Adopted |
| Carbon Steel | 20 (1020/S20C/C22) | ||
| 40 (1040/S40C/C40) | Ø16-Ø300 | ||
| 45 (1045/S45C/C45) | |||
| Bearing Steel | GCr9 (51100/SUJ1) | ||
| GCr15 (52100/SUJ2/100Gr6) | Ø12-Ø250 | ||
| GCr9SiMn (A485-Gr.1/SUJ3) | GB/SAE/ | ||
| Cr-Mo Steel | 20Cr (5120/SCr420H/20Cr4) | JIS/DIN | |
| 40Cr (5140/SCr440/41Cr4) | Ø12-Ø250 | ||
| 42CrMo(4140/SCM440/42CrMo4) | |||
| Gear Steel | 20CrNiMo | ||
| 20CrMn(5115/SMnC420/20MnCr5) | Ø16-Ø600 | ||
| 20CrNiMo(8620/SNCM220/20CrMiMo2) |
Company Introduction of Astm 1320/Aisi 4140 Alloy Steel Bar And Alloy Steel Rod
CNBM International Corporation is the most import and export platform of CNBM group(China National Building Material Group Corporation) ,which is a state-owned enterprise, ranked in 270th of Fortune Global 500 in 2015.
With its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high quality series of refractories as well as technical consultancies and logistics solution.
| After-sale service | l CNBM provides the services and support you need for every step of our cooperation. We’re the business partners you can trust; you can relax and get on with doing business. |
| l For any problem, please kindly contact us at any your convenient time, we’ll reply you in our first priority within 24 hours | |
| Advantages | l Industry experience over 20 years. |
| l Shipment of goods -More than 70 countries worldwide. | |
| l The most convenient transport and prompt delivery. | |
| l Competitive price with best service. | |
| l High technical production line with top quality products. | |
| l High reputation based on best quality products. | |
Packaging & Delivery of Astm 1320/Aisi 4140 Alloy Steel Bar And Alloy Steel Rod
| Packaging Detail | Sea worthy packing /as per customer's packing instruction |
| Delivery Detail | 15 ~ 40 days after receiving the deposit |
Products Show
FAQ:
| Are you a trading company or manufacturer? | Manufacturer |
| What’s the MOQ? | 1000m2 |
| What’s your delivery time? | 15-20 days after downpayment received |
| Do you Accept OEM service? | Yes |
| what’s your delivery terms? | FOB/CFR/CIF |
| What's the Payment Terms? | 30% as deposit,70% before shipment by T/T |
| Western Union acceptable for small amount. | |
| L/C acceptable for large amount. | |
| Scrow ,Paybal,Alipay are also ok | |
| Why choose us? | Chose happens because of quality, then price, We can give you both. Additionally, we can also offer professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposals. |
| What's your available port of Shipment? | Main Port, China |
| What’s your featured services? | Our service formula: good quality+ good price+ good service=customer's trust |
| Where are your Market? | Covering more than 160 countries in the world |
- Q: What are the different oil and gas grades of special steel?
- There are several different oil and gas grades of special steel that are commonly used in the industry. These grades are specifically designed to withstand the harsh environments and high temperatures associated with oil and gas exploration and production. Some of the most commonly used grades include: 1. API 5CT: This grade is specifically designed for use in casing and tubing applications. It has high strength and excellent resistance to corrosion, making it ideal for use in demanding oil and gas environments. 2. API 5L: This grade is used for pipeline transportation systems in the petroleum and natural gas industries. It has excellent mechanical properties and is designed to withstand high pressure and temperature conditions. 3. NACE MR0175/ISO 15156: This grade is compliant with the NACE MR0175/ISO 15156 standard, which specifies the requirements for the use of metallic materials in oil and gas production environments containing H2S (sour service). These grades have high resistance to sulfide stress cracking and hydrogen-induced cracking. 4. Duplex Stainless Steel: This grade is used in applications where high strength, corrosion resistance, and resistance to stress corrosion cracking are required. It is commonly used in offshore oil and gas production, as well as in subsea equipment. 5. Super Duplex Stainless Steel: This grade offers even higher strength and corrosion resistance than duplex stainless steel. It is commonly used in demanding oil and gas applications, such as subsea and deepwater equipment. These are just a few examples of the different oil and gas grades of special steel available in the market. The selection of the appropriate grade depends on the specific application, operating conditions, and requirements of the project. It is crucial to consult with experts or refer to industry standards and specifications to ensure the right grade is chosen for a particular oil and gas project.
- Q: What is the role of special steel in the oil and gas industry?
- Special steel plays a crucial role in the oil and gas industry as it is used for various applications that require high strength, corrosion resistance, and durability. It is extensively used in the construction of pipelines, offshore platforms, drilling equipment, and storage tanks. Special steel ensures the integrity and reliability of these critical components, enabling safe and efficient operations in the challenging and harsh environments of the oil and gas industry.
- Q: What are the common challenges in heat treating special steel?
- Heat treating special steel poses a range of difficulties. One of the main challenges is to attain the desired hardness and strength while maintaining the desired microstructure. Special steels often necessitate specific heat treatment processes, such as quenching and tempering, to achieve the desired mechanical properties. However, the high alloy content in these steels can make it challenging to achieve uniform heat distribution and control the cooling rate during quenching, resulting in inconsistent hardness and potential distortion. Another obstacle in heat treating special steel is managing residual stresses. During the heating and cooling process, differential thermal expansion and contraction can cause stress to accumulate within the steel, potentially leading to cracking or distortion. To minimize these stresses, it is crucial to employ proper heat treatment techniques, such as preheating and controlled cooling rates. Special steels also require stringent cleanliness standards, as impurities or non-metallic inclusions can adversely affect their mechanical properties. Ensuring the cleanliness of the steel prior to heat treatment can be difficult and may entail additional steps, such as degreasing, pickling, or using protective atmospheres during heat treatment. Furthermore, some special steels are highly susceptible to overheating, which can result in grain growth and the loss of desired properties. To prevent overheating and ensure consistent outcomes, precise temperature control and monitoring are essential. Finally, heat treatment of special steels must take into account specific time-temperature transformation (TTT) and continuous cooling transformation (CCT) characteristics. Understanding and adhering to the appropriate heating and cooling cycles are crucial for achieving the desired microstructure and properties. In conclusion, the challenges in heat treating special steel include achieving the desired hardness and microstructure, managing residual stresses, ensuring cleanliness, preventing overheating, and adhering to specific time-temperature transformation characteristics. Overcoming these challenges necessitates expertise, precise control, and strict adherence to heat treatment protocols.
- Q: What are the main factors affecting the corrosion resistance of special steel?
- The main factors affecting the corrosion resistance of special steel are the composition of the steel, the presence of alloying elements, the surface condition, the exposure environment, and the presence of protective coatings or treatments.
- Q: What are the main factors affecting the heat resistance of special steel?
- The main factors affecting the heat resistance of special steel include its alloy composition, microstructure, and heat treatment. Alloy composition plays a crucial role in determining the heat resistance of special steel. The addition of specific elements such as chromium, nickel, molybdenum, and tungsten can enhance the steel's ability to withstand high temperatures. These alloying elements form stable oxide layers on the surface of the steel, which act as a barrier against oxidation and corrosion at elevated temperatures. The microstructure of special steel also influences its heat resistance. The steel's grain size, distribution of phases, and the presence of precipitates can affect its thermal stability. Fine-grained structures and a homogeneous distribution of phases help improve the steel's resistance to creep, which is the deformation that occurs under prolonged exposure to high temperatures. Additionally, the presence of precipitates, such as carbides or intermetallic compounds, can provide strengthening mechanisms that enhance the steel's resistance to thermal softening. Heat treatment processes, such as quenching and tempering, can significantly impact the heat resistance of special steel. Proper heat treatment can optimize the microstructure and enhance the steel's mechanical properties, including its resistance to thermal degradation. For instance, a well-controlled quenching process can promote the formation of a martensitic structure, which increases the steel's hardness and strength at high temperatures. Other factors that can affect the heat resistance of special steel include the presence of impurities, surface conditions, and environmental factors. Impurities, such as sulfur and phosphorus, can reduce the steel's resistance to high temperatures by promoting the formation of brittle phases or facilitating oxidation. Surface conditions, such as roughness or the presence of cracks, can lead to localized heating and accelerated degradation. Environmental factors, such as the presence of corrosive gases or high humidity, can also influence the steel's heat resistance by promoting oxidation or corrosion processes. In summary, the heat resistance of special steel is influenced by its alloy composition, microstructure, heat treatment, impurities, surface conditions, and environmental factors. Understanding and optimizing these factors are crucial for developing special steel with superior heat resistance for various industrial applications.
- Q: What are the requirements for special steel used in oil and gas equipment manufacturing?
- The requirements for special steel used in oil and gas equipment manufacturing are quite stringent due to the demanding operating conditions and harsh environments that these materials will be exposed to. Some of the key requirements include: 1. Corrosion Resistance: Special steel used in oil and gas equipment must have excellent resistance to corrosion, especially in the presence of various corrosive fluids such as oil, gas, and saltwater. This helps to prevent degradation and premature failure of the equipment. 2. High Strength: The steel must possess high strength and toughness to withstand the extreme pressures, temperatures, and mechanical stresses encountered in oil and gas operations. This ensures that the equipment can perform reliably under demanding conditions. 3. Heat Resistance: Oil and gas equipment often operates at elevated temperatures, especially in downstream processes such as refining and petrochemical applications. Special steel used in these applications must be able to maintain its mechanical properties and structural integrity even at high temperatures. 4. Weldability: Welding is a common joining technique used in the fabrication of oil and gas equipment. The special steel should have good weldability, allowing for efficient and reliable welding processes without compromising the overall strength and integrity of the equipment. 5. Fatigue Resistance: Oil and gas equipment is subjected to cyclic loading, which can lead to fatigue failure if the material is not properly designed to withstand these repetitive stresses. Special steel must possess good fatigue resistance properties to ensure long-term durability. 6. Low Temperature Properties: In certain applications, such as offshore drilling or arctic environments, the equipment may be exposed to extremely low temperatures. The special steel should exhibit excellent toughness and ductility at low temperatures to prevent brittle fracture. 7. Chemical Composition Control: The chemical composition of the special steel must be tightly controlled to ensure consistent and predictable material properties. This involves strict control over the levels of various alloying elements, impurities, and trace elements to meet the specific requirements of the oil and gas industry. Meeting these requirements is crucial for the safe and reliable operation of oil and gas equipment. Special steel manufacturers work closely with industry standards and specifications to develop and provide materials that meet these demanding requirements, ensuring the integrity and performance of the equipment in the oil and gas sector.
- Q: What are the different methods for electroplating special steel?
- There are several methods for electroplating special steel, including electroless nickel plating, gold plating, silver plating, and zinc plating. Each method involves immersing the steel in a solution containing the desired plating material and passing an electric current through the solution to deposit a layer of the plating material onto the steel surface. These methods can enhance the appearance, corrosion resistance, and durability of special steel products.
- Q: What are the different methods for tempering special steel?
- There are several different methods for tempering special steel, including air tempering, oil tempering, water tempering, and salt bath tempering. Air tempering involves heating the steel to a specific temperature and then allowing it to cool in air. Oil tempering involves heating the steel to a specific temperature and then quenching it in oil. Water tempering is a similar process, but the steel is quenched in water instead. Salt bath tempering involves heating the steel in a molten salt bath to achieve the desired tempering temperature. Each method has its own advantages and is chosen based on the specific properties and requirements of the steel being tempered.
- Q: What are the main factors affecting the fatigue strength of special steel?
- Several main factors influence the fatigue strength of special steel: 1. Material composition: The fatigue strength of special steel is determined significantly by its chemical composition. Alloying elements like carbon, chromium, molybdenum, and nickel can improve the material's ability to withstand cyclic loading and enhance its resistance to fatigue. 2. Microstructure: The fatigue strength of special steel is greatly affected by its microstructure, including grain size, crystallographic texture, and the presence of precipitates or phases. Fine-grained structures generally have higher fatigue strength due to reduced stress concentrations and improved resistance to crack initiation and propagation. 3. Surface condition: The fatigue strength of special steel can be significantly impacted by the surface finish and integrity. Surface defects such as scratches, notches, or roughness can act as stress concentrators and initiate fatigue cracks. Proper surface treatments like grinding or shot peening can reduce stress concentrations and introduce compressive residual stresses, improving fatigue resistance. 4. Heat treatment: The fatigue strength of special steel can also be influenced by the heat treatment process used to modify its structure and properties. Appropriate heat treatment techniques like quenching and tempering can optimize the material's microstructure, enhance its hardness, and improve its resistance to fatigue. 5. Loading conditions: The fatigue strength of special steel is greatly influenced by the type and magnitude of cyclic loading applied to it. Factors such as stress amplitude, mean stress, load ratio, and frequency of loading can all impact the material's fatigue life. 6. Environmental conditions: The fatigue strength of special steel can be decreased by the presence of corrosive environments, high temperatures, or other harsh conditions. Environmental factors can accelerate crack initiation and propagation, leading to reduced fatigue life. Selecting corrosion-resistant alloys or applying protective coatings can mitigate the adverse effects of the environment on fatigue strength. By considering and optimizing these factors, manufacturers and engineers can enhance the fatigue strength of special steel, ensuring its reliability and longevity in various applications.
- Q: What are the applications of high-strength low-alloy (HSLA) steel?
- High-strength low-alloy (HSLA) steel has various applications in different industries. It is commonly used in the automotive industry for manufacturing lightweight and fuel-efficient vehicles. HSLA steel is also utilized in construction for building structures that require high strength and durability. Additionally, it finds applications in the manufacturing of heavy machinery and equipment, as well as in the production of pipelines and offshore platforms in the oil and gas industry.
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Astm 1320/Aisi 4140 Alloy Steel Bar And Alloy Steel Rod
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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