Grade AISI 4140,42CrMo, SCM440 Alloy Steel Round Bar
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t
- Supply Capability:
- 10000 m.t/month
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Item specifice
Specifications of Round Bar
Produce Standard: GB, AISI, ASTM, SAE, EN, BS, DIN, JIS
Produce Processes: Smelt Iron -EAF smelt Billet - ESR smelt Billet -Hot rolled or forged get the steel round bar and plate
Heat Treatment; Normalized / Annealed / Quenched+Tempered
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.
Equivement Grade
GB | 20# | 35# | 45# | 20Cr | 40Cr | 35CrMo | 42CrMo | GCr15 | 60Si2MnA | 65Mn |
AISI | 1020 | 1035 | 1045 | 5120 | 5140 | 4135 | 4140 | 52100 | 9260 | 1065 |
JIS | s20c | s35c | s45c | scr435 | scr440 | scm435 | scm440 | suj2 | sup7 | - |
DIN | c20 | c35 | c45 | 20cr4 | 41cr4 | 35crmo4 | 42crmo4 | 100cr6 | 65si7 |
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Chemical Composition
Grade | Dia.(mm) | C | Si | Mn | Cr | P | S | Ni | Cu | Mo |
1020 | 16-280 | 0.17-0.25 | 0.17-0.37 | 0.35-0.65 | ≤0.15 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.25 |
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1035 | 16-300 | 0.32-0.40 | 0.17-0.37 | 0.50-0.80 | ≤0.25 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 |
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1045 | 16-430 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.25 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.25 |
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5120 | 16-85 | 0.18-0.24 | 0.17-0.37 | 0.50-0.80 | 0.70-1.00 | ≤0.035 | ≤0.035 | ≤0.03 | ≤0.03 |
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5140 | 16-400 | 0.37-0.44 | 0.17-0.37 | 0.50-0.80 | 0.80-1.10 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.03 |
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4135 | 13-230 | 0.32-0.40 | 0.17-0.37 | 0.40-0.70 | 0.80-1.10 | ≤0.035 | ≤0.035 | ≤0.03 | ≤0.03 | 0.15-0.25 |
4140 | 13-360 | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.90-1.20 | ≤0.035 | ≤0.035 | ≤0.03 | ≤0.03 | 0.15-0.25 |
52100 | 21-400 | 0.95-1.05 | 0.15-0.35 | 0.20-0.40 | 1.30-1.65 | ≤0.027 | ≤0.02 | ≤0.30 | ≤0.025 | ≤0.10 |
9260 | 20-60 | 0.56-0.60 | 1.50-2.00 | 0.60-0.90 | ≤0.35 | ≤0.035 | ≤0.035 | ≤0.35 | ≤0.20 |
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1566 | 16-80 | 0.62-0.70 | 0.17-0.37 | 0.90-1.20 | ≤0.25 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.25 |
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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
MOQ: 30 metric tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.
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 does special steel contribute to the tool manufacturing industry?
- Special steel plays a crucial role in the tool manufacturing industry as it offers several advantages that enhance the quality, performance, and durability of tools. Firstly, special steel is known for its exceptional strength and toughness, which makes it ideal for manufacturing high-quality tools that can withstand heavy usage and extreme conditions. In addition to strength, special steel also offers excellent wear resistance. Tools made from special steel can retain their sharpness and cutting edge for a longer period, reducing the need for frequent re-sharpening or replacement. This not only saves time and effort but also increases productivity in various industries that heavily rely on tools, such as construction, automotive, and aerospace. Moreover, special steel can be heat-treated to achieve specific properties, such as hardness, which is vital for tools like drills, saws, and blades. This heat treatment process allows manufacturers to tailor the steel's characteristics to meet the specific requirements of different tools, ensuring optimal performance and effectiveness. Special steel also provides corrosion resistance, an essential feature for tools that may be exposed to moisture, chemicals, or harsh environments. By preventing rust and corrosion, special steel helps to prolong the lifespan of tools, reducing maintenance costs and ensuring their reliable performance over time. Furthermore, the versatility of special steel allows manufacturers to create tools with complex shapes and designs. This flexibility opens up opportunities for innovation and the development of specialized tools that cater to unique applications and industries. Special steel can be easily machined, welded, and formed into various tool designs, enabling manufacturers to create efficient and ergonomic tools that offer improved handling and user comfort. In summary, special steel significantly contributes to the tool manufacturing industry by providing strength, wear resistance, heat treatability, corrosion resistance, and versatility. These properties enable the production of high-quality tools that are durable, reliable, and efficient, meeting the demands of diverse industries and enhancing productivity.
- Q:Can special steel be used in the production of springs?
- Yes, special steel can be used in the production of springs. Special steel, such as alloy steel or stainless steel, is often preferred for its high strength, durability, and resistance to corrosion, making it suitable for applications where springs need to withstand heavy loads or harsh environments.
- Q:What is the hardness of special steel?
- The hardness of special steel can vary depending on its composition and specific heat treatment, but generally, special steel is known for its high hardness and excellent strength properties.
- Q:How does special steel contribute to reducing product lead times?
- Special steel contributes to reducing product lead times by offering several advantages. Firstly, special steel is known for its high strength and durability, allowing manufacturers to produce parts that can withstand harsh conditions and heavy usage. This ensures that the products made with special steel have a longer lifespan, reducing the need for frequent repairs or replacements. Secondly, special steel can be fabricated into complex shapes and sizes, enabling manufacturers to produce intricate components with high precision. This eliminates the need for additional machining processes, saving time and reducing lead times. Lastly, special steel often has improved mechanical properties, such as higher hardness or heat resistance, which can enhance the performance of the final product. This allows manufacturers to meet specific requirements and deliver high-quality products more efficiently, ultimately reducing lead times.
- Q:How does special steel contribute to the packaging aftermarket industry?
- Special steel contributes to the packaging aftermarket industry by providing durable and high-quality materials for the manufacturing of packaging machinery and equipment. It enables the production of robust packaging solutions that can withstand the rigors of transportation and handling, ensuring the safe and secure delivery of goods. Additionally, special steel's corrosion resistance properties help in maintaining the integrity of packaging materials, prolonging their lifespan and reducing the need for frequent replacements.
- Q:How does special steel contribute to the heat resistance of products?
- Special steel contributes to the heat resistance of products due to its unique properties and composition. It is specifically designed to withstand high temperatures without losing its strength or structural integrity. The inclusion of elements such as chromium, nickel, and molybdenum in special steel enhances its heat resistance by forming a protective oxide layer that prevents oxidation and corrosion at elevated temperatures. This enables products made with special steel to withstand extreme heat conditions, making them suitable for various applications in industries such as aerospace, automotive, and energy.
- Q:Is special steel suitable for manufacturing molds and dies?
- Yes, special steel is highly suitable for manufacturing molds and dies. Special steel refers to a group of high-quality steels that possess exceptional properties such as high hardness, wear resistance, toughness, and excellent heat resistance. These characteristics make special steel an ideal choice for mold and die manufacturing. Molds and dies are critical components in various industries such as automotive, aerospace, electronics, and manufacturing. They are used to shape, form, and cut materials into desired shapes and sizes. Due to the repetitive and intense nature of their applications, molds and dies are subjected to high pressures, temperatures, and abrasive forces. Therefore, they need to be made from a material that can withstand these conditions while maintaining their dimensional stability and performance. Special steel, such as tool steel, is specifically designed to meet these requirements. It has a high hardness level, which enables it to resist wear and deformation, even under extreme conditions. This characteristic ensures that molds and dies made from special steel can maintain their shape and precision for a longer period, resulting in better product quality and reduced downtime for maintenance and replacement. Additionally, special steel offers excellent heat resistance, which is crucial for molds and dies used in high-temperature applications such as plastic injection molding or forging. It can withstand the thermal cycling and rapid heating and cooling associated with these processes without losing its mechanical properties or developing cracks or deformation. Moreover, special steel is known for its exceptional toughness, which is essential for molds and dies that are subjected to high pressures and impacts. It can absorb and distribute the applied forces, preventing premature failure and prolonging the lifespan of the molds and dies. In summary, special steel is highly suitable for manufacturing molds and dies due to its high hardness, wear resistance, toughness, and excellent heat resistance. Its exceptional properties ensure that molds and dies can withstand the demanding conditions of their applications, resulting in improved performance, longevity, and cost-effectiveness for manufacturers.
- Q:What are the applications of special steel in the electronics industry?
- Special steel has various applications in the electronics industry. It is commonly used to manufacture components such as connectors, springs, and contacts due to its high strength, corrosion resistance, and electrical conductivity. Additionally, special steel is employed in the production of magnetic cores for transformers and inductors, as it exhibits excellent magnetic properties. Its ability to withstand extreme temperatures and provide reliable performance makes it a preferred choice for electronics applications where durability and efficiency are crucial.
- Q:What are the different welding techniques for special steel?
- There are several different welding techniques used for special steel, including shielded metal arc welding (SMAW), gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), and submerged arc welding (SAW). Each technique offers unique advantages and is chosen based on factors such as the type of special steel being welded, the desired weld quality, and the specific requirements of the project.
- Q:How is heat-resistant steel used in the production of furnaces and boilers?
- Heat-resistant steel is used in the production of furnaces and boilers due to its ability to withstand high temperatures without deformation or failure. This type of steel is specifically designed to maintain its strength and structural integrity even when exposed to extreme heat conditions. By using heat-resistant steel, furnaces and boilers can efficiently generate and contain high levels of heat, ensuring a safe and reliable operation.
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Grade AISI 4140,42CrMo, SCM440 Alloy Steel Round Bar
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t
- Supply Capability:
- 10000 m.t/month
OKorder Service Pledge
OKorder Financial Service
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