ASTM Carbon Structure Steel Square Bar
ASTM Carbon Structure Steel Square Bar
Carbon steel bar is a kind of solid long steel, and the common ones are round steel, square steel, hexagonal steel, octagonal steel, etc. Round steel is often used to make steel bars, bolts and various mechanical parts, as well as billets for seamless steel pipes. Square steel refers to steel that is rolled or processed into a square section, which can be divided into hot-rolled and cold-rolled.
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PRODUCT DESCRIPTION
Carbon steel round bar is a solid long steel bar with a circular cross-section. Its specifications are expressed in diameter in millimeters (mm). Round bars are divided into three types: hot rolled round bars, forged round bars and cold drawn round bars according to the process section. According to the chemical composition (ie carbon content), it can be divided into low carbon steel round steel, medium carbon steel round steel and high carbon steel round steel. According to the quality of steel, it can be divided into ordinary carbon steel round steel and high-quality carbon steel round steel. According to the use, it can be divided into carbon structural steel and carbon tool steel.
1. Carbon structural steel
Carbon structural steel is generally not heat-treated, and is used directly in the supplied state. Usually Q195, Q215, Q235 steel has low carbon mass fraction, good welding performance, good plasticity and toughness, and certain strength. It is often rolled into thin plate, steel bar, welded steel pipe, etc.
Used in bridges, buildings and other structures and in the manufacture of ordinary rivets, screws, nuts and other parts. The mass fraction of carbon in Q255 and Q275 steel is slightly higher, the strength is higher, the plasticity and toughness are better, and it can be welded. It is usually rolled into section steel, bar steel and steel plate as structural parts and to manufacture connecting rods, gears and couplings of simple machinery. Sections, pins and other parts.
2. High-quality structural steel
High-quality carbon structural steel is mainly used in the manufacture of machine parts. Generally, heat treatment is required to improve the mechanical properties. Depending on the carbon mass fraction, there are different uses.
3. Carbon tool steel
Carbon tool steel is a high-carbon steel that basically does not contain alloy elements. The carbon content is in the range of 0.65%-1.35%. Its production cost is low, the source of raw materials is easy to obtain, and it has good machinability. High wear resistance, so it is widely used in the manufacture of various cutting tools, molds, measuring tools.
4. Free-cutting structural steel
Free-cutting structural steel is to add some elements that make the steel brittle to the steel, which is beneficial to increase the cutting speed and prolong the tool life. The element that makes steel brittle is mainly sulfur, and elements such as lead, tellurium, and bismuth are used in ordinary low-alloy free-cutting structural steel.
| Material | Q345B,Q345C,Q345D,Q345E,Q390,Q390B,Q390C,Q390D,Q390E, |
| Q420,Q420B,Q420C,Q420D,Q420E,Q460,Q460D, | |
| Q500C,Q500D,Q500E,Q550C,Q550D,Q550E, | |
| Q620C,Q620D,Q620E,Q690A,Q690B,Q690C,Q690D,Q690E,Q690D,Q690C, | |
| Q890C,Q890D, | |
| 16Mo3,16MnL,16MnR ,16Mng,16MnDR,HG785D,S690QL,50MN | |
| Thickness | 0.1mm-300mm or as required |
| Standard | AISI,ASTM,DIN,JIS,GB,JIS,SUS,EN,etc. |
| Technique | Hot rolled,cold rolled |
| Surface Treatment | Clean,blasting and painting according to customer requirement |
| Thickness tolerance | ±0.1mm |
| Application | It is mainly used to make structural parts such as car girder, beam, transmission shaft and car chassis parts, which can reduce the weight of the parts. |
| Export packing | Waterproof paper, and steel strip packed.Standard Export Seaworthy Package.Suit for all kinds of transport,or as required |
Packing and shipping
The company has domestic first-class professional technical consultants and a team of outstanding employees with professional skills. The main products are carbon steel/galvanized steel. Stainless steel/steel coil steel bars, galvalume, color-coated coils, profiles, steel bars, aluminum products, roof panels. Products are sold to more than 60 countries and regions in Europe, the Middle East, Southeast Asia, and Australia.
FACTORY APPEARANCE
Company As 20000 Square Meters Of Indoor Storage more Than 20,000 Tons Of Inventory, Spot Product Standard Involves European Standard American Standard British Standard Australian Standard German Standard, Now According To Customer Requirements For Product Opening Strip.Cutting.Processing.Annual sales of more than 60 milliontons.Our company owns the firs class professional technique adviser in China and the excellent staffs with professional technology.The main products are carbon steel / galvanized.
PRODUCT DESCRIPTION
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