Grade 12Cr1MoVG Alloy Steel / Tubular Steel Round Bar
- Ref Price:
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 m.t
- Supply Capability:
- 10000 m.t/month
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Specification
Specifications of Round Bar
1.hot rolled black surface
2. fine mechanical performance
3. Delivery condition: Hot-rolled,black surface.
4. AISI/ASTM 4140,42CrMo4 Din1.7225,SCM440 JIS
Chemical Composition
C | Si | Mn | P | S | Cr | Mo |
0.38-0.45 | ≤0.4 | 0.6-0.9 | ≤0.035 | ≤0.030 | 0.9-1.2 | 0.15-0.30 |
Our Featured Products
Alloy steel: Combination of steel / Bearing steel// Spring steel/ Cr- mo steel
GB 20Cr/ 40Cr / 42CrMo / 35CrMo/ 20CrMn/GCr15/30CrMnTi…
ASTM 5120 /5140 / 4140/ 4135/ 5152/52100…
JIS SCr420H/ SCr440/ SCM3/ SUP9/SUJ2…
Carbon steel: Carbon tool steel /Carbon Structural Steel
GB 20/ 35 /45/…
ASTM 1020/ 1030/1045…
JIS S20C/ S30C / S45C…
Usage and Applications of Round Bar
1. Chinese standard steel bar is often used where large amounts of steel need to be formed, for example as structural steel.
2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.
3. Steel round bar is used in construction and a large number of architectural and engineering structures.
Packaging & Delivery of Round Bar
Packaging Detail: All goods are packed in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)
Delivery Detail: 15~45 days
Trade terms: FOB, CFR, CIF
Weight: Theprice invoicing on theoretical weight basis or actual weight basis depends on customer’s request.
Shipment: The shipment of bulk break or container is depends on customer’s request and the situation of the port of destination.
Documents given: Full set of original clean on board bill of lading; Original signed commercial invoice; Original packing list; Policy of insurance; Certificate of origin and what the target market needs.
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.
Q2: How do we guarantee the quality of our products?
A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q3: How soon can we receive the product after purchase?
A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.
Q4: What makes stainless steel stainless?
A4: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.
Q5: Can stainless steel rust?
A5: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.
- Q: How are tool steels used in the manufacturing of cutting tools?
- Tool steels are used in the manufacturing of cutting tools due to their high hardness, wear resistance, and ability to withstand high temperatures. They are typically used to create the blades or edges of cutting tools such as drills, saws, and knives. Tool steels allow for precise and efficient cutting by maintaining their sharpness for longer durations, providing durability and strength to the cutting tools.
- Q: How does special steel withstand high-velocity impacts?
- Due to its unique properties and composition, special steel possesses the capability to endure high-velocity impacts. A crucial factor contributing to this capability is its high strength and hardness, which allows it to withstand extreme forces without deforming or fracturing. Additionally, special steel often incorporates alloying elements like chromium, molybdenum, nickel, and vanadium, which enhance its exceptional toughness and resistance to impacts. Furthermore, special steel frequently undergoes heat treatment to improve its mechanical properties. This involves processes like quenching and tempering that modify the steel's microstructure, resulting in a refined and strengthened structure. This heat treatment also augments the steel's capacity to absorb and disperse energy during high-velocity impacts, thereby lowering the risk of failure. Moreover, special steel is frequently tailored with specific alloys and compositions to optimize its performance in specific applications. For instance, certain grades of steel are engineered specifically for armor applications, where they must endure high-velocity impacts from projectiles. These steels may incorporate additional elements like boron or titanium, further enhancing their ability to resist penetration and deformation under extreme loads. In conclusion, special steel's ability to withstand high-velocity impacts can be attributed to its high strength, hardness, toughness, and impact resistance. Its distinctive composition, heat treatment processes, and targeted design render it a dependable choice for applications where impact resistance is of utmost importance.
- Q: How is special steel used in the production of surgical instruments?
- Special steel is used in the production of surgical instruments due to its unique properties such as corrosion resistance, high strength, and ability to maintain sharpness. This steel is specifically designed to meet the demanding requirements of surgical tools, ensuring durability and precision during procedures.
- Q: What are the different types of heat-resistant steel?
- There are various types of heat-resistant steel, including austenitic stainless steels, martensitic stainless steels, ferritic stainless steels, and precipitation hardening stainless steels. Additionally, nickel-based alloys such as Inconel and Hastelloy, as well as refractory metals like tungsten and molybdenum, are also considered heat-resistant steel materials.
- Q: What are the requirements for special steel used in corrosive environments?
- Special steels used in corrosive environments are required to have specific properties to ensure their durability and performance in such conditions. The requirements for these steels can be summarized as follows: 1. Corrosion resistance: The primary requirement for special steels used in corrosive environments is excellent corrosion resistance. These steels should be able to withstand the attack of aggressive substances such as acids, alkalis, and salts. They should exhibit minimal or no signs of corrosion, ensuring the longevity of the steel and preventing any degradation in performance. 2. High strength: Special steels used in corrosive environments should possess high strength to handle the mechanical stresses imposed on them. This property is crucial for applications where the steel is subjected to heavy loads, pressures, or impacts. High strength also helps in maintaining the integrity and structural stability of the steel in corrosive conditions. 3. Resistance to pitting and crevice corrosion: Pitting and crevice corrosion are localized forms of corrosion that can occur in the presence of certain aggressive chemicals or stagnant environments. Special steels should have resistance to such forms of corrosion, as they can lead to localized damage, reduced structural integrity, and potential failure of the steel. 4. Stress corrosion cracking resistance: Stress corrosion cracking is a phenomenon that occurs when a combination of tensile stress and a corrosive environment compromises the material's integrity. Special steels should be resistant to stress corrosion cracking, ensuring their reliability under applied loads in corrosive environments. 5. Resistance to intergranular corrosion: Intergranular corrosion can occur along grain boundaries, leading to the weakening of the material. Special steels used in corrosive environments should have good resistance to intergranular corrosion, preventing any loss in structural integrity. 6. Thermal stability: Special steels should exhibit thermal stability to maintain their properties and resist degradation at elevated temperatures. This characteristic is essential for applications involving high-temperature corrosive environments. 7. Easy maintenance: Special steels used in corrosive environments should be relatively easy to maintain. This includes aspects such as ease of cleaning, resistance to fouling or scaling, and compatibility with cleaning agents or procedures commonly used in the industry. It is important to note that the specific requirements for special steels used in corrosive environments may vary depending on the application and the type of corrosive substances encountered. Therefore, it is crucial to carefully consider the particular needs and consult with experts in the field to select the most appropriate steel for each specific corrosive environment.
- Q: Can special steel be used in the manufacturing industry?
- Yes, special steel can be used in the manufacturing industry. Special steel refers to specific types of steel that have been tailored to possess certain properties, such as increased strength, improved corrosion resistance, or superior heat resistance. These specialized properties make special steel ideal for various applications in the manufacturing industry, including the production of heavy machinery, automotive parts, tools, and construction materials.
- Q: What are the different test methods used to evaluate special steel?
- Special steel undergoes several test methods to evaluate its quality and performance, ensuring that it meets the required standards and specifications. Commonly employed test methods include: 1. Tensile Testing: This method assesses the steel's ability to withstand tension or pulling forces, determining its ultimate tensile strength, yield strength, and elongation. 2. Hardness Testing: Hardness tests, such as Rockwell or Brinell tests, evaluate the steel's resistance to indentation or scratching, providing insight into its strength and durability. 3. Impact Testing: This test measures the steel's capacity to absorb energy under high-stress conditions. Charpy and Izod tests are frequently used to determine the steel's toughness and resistance to sudden shocks or impacts. 4. Chemical Analysis: Determining the steel's composition, including the percentage of elements like carbon, manganese, and chromium, guarantees that it meets the necessary specifications and standards. 5. Microstructure Evaluation: Microscopic examination of the steel's microstructure reveals crucial information about its grain size, phase distribution, and any potential defects or inclusions. Optical microscopy or electron microscopy techniques are employed for this purpose. 6. Corrosion Testing: Special steel must endure harsh environments or corrosive substances. Various corrosion tests, such as salt spray tests or immersion tests, assess the steel's resistance to corrosion and degradation. 7. Non-Destructive Testing (NDT): NDT methods, including ultrasonic testing, magnetic particle testing, or eddy current testing, detect surface or internal defects without damaging the steel. These tests provide valuable information about the steel's structural integrity. 8. Fatigue Testing: Fatigue tests simulate repetitive loading conditions to evaluate the steel's resistance to cyclic stress, assessing its durability and ability to withstand long-term usage or repetitive loading. Utilizing these diverse test methods, manufacturers and quality control departments can thoroughly assess the mechanical properties, chemical composition, microstructure, and other crucial factors of special steel, ensuring it meets the necessary standards and specifications.
- Q: How does sulfur affect the machinability of special steel?
- Sulfur negatively affects the machinability of special steel by forming brittle sulfide inclusions, reducing the steel's ability to be cut, drilled, or shaped effectively.
- Q: Can special steel be machined easily?
- No, special steel is generally not easy to machine due to its higher hardness and strength compared to regular steel.
- Q: How are magnesium alloys used in lightweight structures?
- Magnesium alloys are used in lightweight structures due to their exceptional strength-to-weight ratio. They are commonly employed in the aerospace industry for constructing aircraft components, such as fuselage frames, wings, and engine parts. Additionally, magnesium alloys find applications in automotive manufacturing, where they contribute to reducing the weight of vehicles, thus enhancing fuel efficiency. These alloys are also utilized in the production of portable devices, sporting equipment, and other products that require a combination of strength and lightness.
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Grade 12Cr1MoVG Alloy Steel / Tubular Steel Round Bar
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 m.t
- Supply Capability:
- 10000 m.t/month
OKorder Service Pledge
OKorder Financial Service
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