Carbon steel is an iron-carbon alloy with a carbon content of 0.0218% to 2.11%. Also called carbon steel.
Generally, it also contains a small amount of silicon, manganese, sulfur, and phosphorus. the higher the carbon content of carbon steel, the greater the hardness and the higher the strength, but the lower the plasticity.

The smelting of carbon steel is usually carried out in converter and open hearth furnace. Bof generally smelting ordinary carbon steel, and open furnace can smelting all kinds of high quality steel. Oxygen top blown bof steelmaking technology develops rapidly and has a tendency to replace open hearth steelmaking. The refined liquid steel is injected into the ingot mold and various ingot are obtained. After forging or rolling, the ingot is processed into steel plates, strips, bars and sections of various shapes. Carbon steel is usually used directly under hot rolling condition. When used to manufacture tools and various machine parts, it needs to be heat treated according to the requirements of use; As for steel castings, most of them are heat treated.
Carbon steel is broken down into four classes based on carbon content
Low-carbon steel
0.05 to 0.25% carbon (plain carbon steel) content.
Medium-carbon steel
Approximately 0.3-0.5% carbon content.Balances ductility and strength and has good wear resistance; used for large parts, forging
and automotive components.
High-carbon steel
Approximately 0.6 to 1.0% carbon content.
Very strong, used for springs, edged tools, and high-strength wires.
Ultra-high-carbon steel
Approximately 1.25-2.0% carbon content. Steels that can be tempered to great hardness.
Used for special purposes like (non-industrial-purpose) knives, axles, and punches.
Most steels with more than 2.5% carbon content are made using powder metallurgy.
Grade | Class | Chemical Composition | ||||
W(C) % | W(Mn) % | W(Si) % | W(S) % | W(P) % | ||
≤ | ||||||
Q195 | - | 0.06-0.12 | 0.25-0.50 | 0.30 | 0.050 | 0.045 |
Q215 | A/B | 0.09-0.15 | 0.25-0.55 | 0.30 | 0.050/0.045 | 0.045 |
Q235 | A | 0.14-0.22 | 0.30-0.65 | 0.30 | 0.050 | 0.045 |
B | 0.12-0.20 | 0.30-0.70 | 0.30 | 0.045 | 0.045 | |
C | ≤0.18 | 0.35-0.80 | 0.30 | 0.040 | 0.040 | |
D | ≤0.17 | 0.35-0.80 | 0.30 | 0.035 | 0.035 | |
Q255 | A/B | 0.18-0.28 | 0.40-0.70 | 0.30 | 0.050/0.045 | 0.045 |
Q275 | - | 0.28-0.38 | 0.50-0.80 | 0.35 | 0.050 | 0.045 |
Product Name | Carbon Steel Sheet |
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 Q890C,Q890D |
Thickness | 0.1-300mm.or as your request |
Width | 600mm-1800mm |
Length | 1m-12m or according to customer's special request |
Standard | AISI,ASTM,JIS,DIN,GB,SUS |
Tolerance | Thickness: +/-0.02mm, Width:+/-2mm |
Technique | Hot Rolled,Cold Rolled |
Application | Machine parts, Metal components, Agricultural machinery, Machine tools, Ships, Bridge etc |
Payment Term | TT or LC |
Price Term | EXW/FOB/CIF/CFR |
Sample | Available |


The company insists on focusing on the market externally, internally focusing on management, and taking the path of quality-benefit development, and has achieved good economic and social benefits. With strong financial strength, advanced management experience, excellent sales services, strict quality purchase management system and scientific The overall marketing method, go hand in hand with you, and develop together. The company's management is based on the principles of fairness, objectivity, science, and integrity, and adheres to the people-oriented management, customer-oriented service, and standardized management.
Company's products: stainless steel series, carbon steel series, aluminum series, copper series, galvanized, color coated, coiled materials, seamless pipes, welded pipes, square pipes, torsion pipes, round bars, angle steels, channel steels, I-beams , Hexagonal steel, square steel, flat steel, steel wire, welding rod, flange cutting parts and other stainless steel and high nickel alloy steel. For customers to buy. The products sell well all over the country and are exported to more than 50 countries including the European Union, the United States, Australia, Southeast Asia, and the Middle East. They are widely used in China Railway Group, Sani Heavy Industry, and China (Hong Kong) Gas International Co., Ltd. natural gas transformation Project, Jinjin Expressway and many other national key projects.
The products distributed by our company are guaranteed by the manufacturer, and have a complete pre-sale, in-sale and after-sales service system. Our company has a strong standing stock of thousands of tons, sufficient supply and complete specifications. It has formed an annual inventory turnover of more than 9,000 tons and more than 800 specifications.
HengAn Steel welcomes new and old customers to visit and negotiate for a win-win cooperation!

Q: Are you a manufacturer?
A: Yes , we are a manufacturer, We have own factory, which is located in TIANJIN,CHINA.
Q:Can we visit your factory ?
A:Warmly welcome once we have your schedule we will pick you up .
Q: Do you have quality control?
A: Yes, we have gained API, ISO authentication.
Q: Can you arrange the shipment?
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-45 days if the goods are not in stock, it is according to quantity.
Q:Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.