Round Bar Supplier Hot Rolled Alloy Carbon Steel Q235B Q345b Q345D Q345e Steel Round Bar Xiwang Special Steel 8~400

Oct 20, 2025

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Diameter

10-400mm/as you required

Length

1-12m/as you required

Shape

Round,Square,Rectangular,etc.

Standard

AISI,ASTM,DIN,JIS,GB ,JIS,SUS,EN,etc

MOQ

5Tons

Technique

Hot Rolled/Cold Drawn

Surface Treatment

1. Galvanized 2. PVC,Black and color painting 3. Transparent oil,anti-rust oil 4. According to clients requirement

The tolerance

±0.5mm

Material

GB: Q195, Q215, Q235A, Q235B, Q235C, Q235D, Q255A, 255B, Q275, Q295A, Q295B, Q345B, Q345C, Q345D, Q345E, Q390A, Q390B, Q390C,
Q390D, Q390E, Q420, Q420B, Q420C, Q420D, Q420E, Q460D, Q460E, Q500D, Q500E, Q550D, Q550E, Q620D, Q620E, Q690D, Q690E,etc.

EN:S185,S235JR, S275JR, S355JR, S420NL, S460NL S500Q, S550Q, S620Q, S690Q ,etc.
ASTM: Grade B, Grade C, Grade D, A36, Grade 36, Grade 40, Grade42, Grade 50, Grade 55, Grade 60, Grade 65, Grade 80,4130,4140,5160.etc.
JIS: SS330, SS400, SPFC, SPHD, SPHE,etc.

Application

Widely used in mechanical manufacture,construction field,farm vehicles,agriculture greenhouse,automotive
industry,railway,decoration,steel structure,etc.

Shipment Time

200ton:Within 5days after deposit Customize Size:Within 10days after deposit OEM Product: Within 15 days after deposit

Shipment Time

20000Tons/Month

info-851-334

info-837-265

 

 1.What is a carbon steel bar?

A carbon steel bar is an alloy that contains carbon and iron. It has high tensile strength and good weldability but can be prone to corrosion if not properly treated. Stainless and carbon steel bars have different properties that make them ideal for certain applications.

 

2.Is carbon steel stronger than steel?

Carbon steel has a significant advantage over mild steel in terms of strength. Carbon steel can be up to 20% stronger than mild steel, making it an excellent choice for high-strength applications or where high hardness is required. One of the most significant disadvantages of carbon steel is its high cost.

 

3.Can carbon steel rust?

All carbon steels are susceptible to rust, making them unfit for use in a wide variety of end-use applications. Overall, carbon steel is excellent if you're looking for a low-cost metal, but generally unfit for high-quality or high-precision manufacturing operations.

 

4.What are the three types of steel bars?

Here's our quick summary of the four types of steel bars and what they are commonly used for.

Hot Rolled Deformed Bars. ...

Cold Worked Steel Bars. ...

Mild Steel Plain Bars. ...

Prestressing Steel Bars.

 

5.Is high carbon steel cheap?

What is high carbon steel? Carbon steel is a type of steel that contains carbon as the main alloying element, with other elements present in smaller amounts. This metal is commonly used in the manufacturing of many products and structures due to its high strength and low cost.