Carbon Steel 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.
Product Introduction
What is carbon steel round bar?
Carbon steel round bar is a solid long steel bar with a circular cross-section. Its specifications are expressed in diameter in millimeters (mm). The calculation formula of theoretical weight of round steel: outer diameter Х outer diameter Х0.00617=kg/m. 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.
Common steel grades and chemical compositions of high-quality carbon steel round steel：
Steel Number | Chemical Composition, % | σs, MPa ≥ | ||||
C | Mn | Si | S | P | ||
08F | 0.05-0.11 | 0.25-0.50 | ≤0.03 | <0.035 | <0.035 | 175 |
10 | 0.07-0.13 | 0.35-0.65 | 0.17-0.37 | <0.035 | <0.035 | 205 |
20 | 0.17-0.23 | 0.35-0.65 | 0.17-0.37 | <0.035 | <0.035 | 245 |
35 | 0.32-0.39 | 0.50-0.80 | 0.17-0.37 | <0.035 | <0.035 | 315 |
40 | 0.37-0.44 | 0.50-0.80 | 0.17-0.37 | <0.035 | <0.035 | 335 |
45 | 0.42-0.50 | 0.50-0.80 | 0.17-0.37 | <0.035 | <0.035 | 355 |
50 | 0.47-0.55 | 0.50-0.80 | 0.17-0.37 | <0.035 | <0.035 | 375 |
60 | 0.57-0.65 | 0.50-0.80 | 0.17-0.37 | <0.035 | <0.035 | 400 |
65 | 0.62-0.70 | 0.50-0.80 | 0.17-0.37 | <0.035 | <0.035 | 420 |
Types of steel and their grades:
Ordinary carbon structural steel
| Good plasticity, can be rolled into steel plates, steel bars, steel pipes, etc. | |
Q225, Q275 | Can be rolled into shaped steel, steel plate, etc. | |
High quality carbon structural steel | 20#, 45#, etc. | Mainly used to manufacture various machine parts |
Carbon Tool Steel | T9, T12 etc. | Mainly used to manufacture various props, measuring tools, molds, etc. |
cast steel | ZG25 etc. | It is mainly used to manufacture parts with complex shapes and require certain strength, plasticity and toughness, such as gears, couplings, etc. |
Carbon steel classification:
1. According to the mass percentage of carbon: low carbon steel (C:≤0.25%); medium carbon steel (C:0.25≤C≤0.6%); high carbon steel (C:>0.6%)
2. According to the quality of steel (mainly the content of impurities sulfur and phosphorus):
Ordinary carbon steel (S≤0.055%, P≤0.045%)
High-quality carbon steel (S≤0.040%, P≤0.040%)
High quality carbon steel (S≤0.030%, P≤0.035%)
3. By use:
Carbon structural steel: mainly used for bridges, ships, building components, machine parts, etc.;
Carbon tool steel: mainly used for tools, molds, measuring tools, etc.;
Types of steel and their grades:
Ordinary carbon structural steel
| Q195, Q215, Q235 | Good plasticity, can be rolled into steel plates, steel bars, steel pipes, etc. |
Q225, Q275 | Can be rolled into shaped steel, steel plate, etc. | |
High quality carbon structural steel | 20#, 45#, etc. | Mainly used to manufacture various machine parts |
Carbon Tool Steel | T9, T12 etc. | Mainly used to manufacture various props, measuring tools, molds, etc. |
cast steel | ZG25 etc. | It is mainly used to manufacture parts with complex shapes and require certain strength, plasticity and toughness, such as gears, couplings, etc. |
Custom Made
Various stainless steel structures, carbon steel structures, galvanized steel structures, and aluminum profiles can be produced.
Color-coated coils of various patterns and colors, aluminum profiles, elbows, tees, stainless steel flanges, steel mesh, perforated steel sheets, cold-formed steel sheet piles, hot-rolled steel sheet piles, U/Z/S/L/AS/H types Steel sheet piles, steel strands, prestressed steel strands, 7/2/3/19/37 steel strands, galvanized steel strands, plastic-coated steel strands, carbon steel wires, steel wires, steel bars, grade I steel bars ( 300/420 grade), Ⅱ grade reinforcement (335/455 grade), Ⅲ grade reinforcement (400/540), Ⅳ grade reinforcement (500/630), compression reinforcement, tension reinforcement, erection reinforcement, distribution reinforcement, stirrup Steel bars, deformed steel bars, smooth steel bars, ribbed steel bars, cold-rolled twisted steel bars, universal steel beams (H-beams), welded H-beams, hot-rolled H-beams, T-beams, T-beams for railways, special-shaped welded T-beams, special-shaped heat Rolled equal-sided and equal-thickness T-shaped steel, special-shaped bolted T-shaped steel, H-shaped steel split T-shaped steel, Z-shaped steel, C-shaped steel, channel steel, I-beam, steel beam (Universal Beam), angle steel (angle iron), equilateral angle steel , Unequal angle steel, W-shaped steel, etc.
Rich manufacturing experience, complete production line, support for customizing various steel profiles! Meet customer application needs. Welcome to contact us for customization.
FAQ
Q: About the price of the product
A: Due to the rise and fall of raw material prices, as well as factors such as the national power restriction policy, product prices will also fluctuate. Welcome to contact us to get the latest product price.
Q: Can you arrange shipment?
A: Of course, we have multiple warehouse locations as well as regular forwarders, and can get the best price from most shipping companies. Provide professional transportation services.
Q: How long will the delivery take?
A: Products that are in stock or only need simple processing, generally 5-15 days. If there is no stock, according to the required product quantity and the usual production time of this product, our professional sales staff will give you an approximate delivery time. According to past experience, in most cases, the delivery time will not exceed 45 days.
Q: What services do you provide?
A: 1. Provide samples, including conventional steel products and some customized steel structure products;
2. Support third-party product quality testing and provide various certificates
3. Provide pick-up and drop-off customer inspection service
4. Provide customized steel structure service
5. Provide simple steel processing, such as cutting, drilling, galvanizing, polishing and other services
6. Provide one-stop service, from product production to product transportation.
7. Provide 24 hours online service
Q: What is the minimum order quantity?
A: 5T
Q: Do you provide after-sales service?
A: Yes, our company is committed to reaching long-term and friendly cooperation with customers. If you encounter any problems, please feel free to contact us.
Q: How can I get your quotation as soon as possible?
A: You can contact us through various contact channels on the website, such as: phone number, email, WhatsApp, WeChat, etc. We will reply within one day. When you contact us, you can provide us with the product specifications you need, such as size, quantity, material, drawings and other information. In this way, we will be able to provide you with the most accurate product quotation immediately.
