Carbon Steel Round Bar
Carbon Steel Round Bar Supplier in China
Our carbon steel round bars are manufactured with precision engineering and strict quality control to ensure consistent quality and reliable performance for a wide range of applications. Through controlled carbon content and optimized processing, these round bars provide excellent strength, formability, and weldability.
Excellent Formability & Weldability
Our carbon steel round bars offer superior formability and weldability compared to alloy steels, making them ideal for fabrication and manufacturing processes that require bending, shaping, and joining with minimal specialized equipment or post-processing requirements.
Cost-Effective Production
Utilizing optimized manufacturing processes and strict quality control, we ensure consistent dimensional accuracy and material properties in every batch while maintaining competitive pricing that delivers exceptional value for standard and high-volume applications.
Versatile Industrial Applications
From construction and general machinery to automotive components and consumer goods, our carbon steel round bars meet diverse industrial requirements where a balance of strength, machinability, and cost-effectiveness is essential for project success and profitability.
Leading Manufacturer of Carbon Steel Round Bar in China
As a premier Carbon Steel Round Bar manufacturer in China, Jiyuan Iron & Steel specializes in producing high-quality carbon steel bars that deliver reliable mechanical properties, excellent formability and superior weldability through precise carbon content control and advanced manufacturing processes.
- Low MOQ — Flexible minimum order quantities for Carbon Steel Bar to accommodate both small and large project requirements.
- OEM & ODM — Customized Carbon Steel Round Bar solutions and design services to meet specific customer applications and specifications.
- Adequate Stock —Consistent inventory of Jiyuan Carbon Steel Bars ensures fast order processing and reliable delivery timelines.
- Customer Satisfaction —High-quality Carbon Steel Round Bar products with customer-centric service and technical support.
Carbon Steel Round Bar Specifications
| Classification | Representative Grades | Specification (mm) | Executive Standard |
|---|---|---|---|
| Carbon Structural Steel | Q195, Q215, Q235, Q275 | ø12-300 | GB/T700 |
| High-Quality Carbon Steel | 10-55, 20Mn-65Mn, C35, C45, S25C-S55C | ø12-300 | GB/T699 |
| Alloy Structural Steel | 20Mn2-50Mn2, 40B-50B, 20Cr-50Cr, 20CrMoA-42CrMoA | ø12-300 | GB/T699 |
| Hardenability Structural Steel | 45H, 15CrH-45CrH, 15CrMoH-42CrMoH | ø12-260 | GB/T5216 |
| Free-Cutting Steel | 1215, 12L14, 115Mn30, Y08-45 | ø12-90 | Various International Standards |
Why Choose CHINASPECSTEEL™ carbon steel round bars?
Our carbon steel round bars are engineered to deliver reliable performance across various industrial applications. Through precise control of carbon content and manufacturing processes, we ensure consistent mechanical properties including excellent strength, formability, and weldability.
Jiyuan’s Q215/E195/1.0034 low carbon steel round bar delivers exceptional value through its ideal combination of mechanical properties and manufacturing flexibility. This grade offers reliable strength characteristics alongside outstanding formability and weldability, making it perfectly suited for cost-effective production of cold-formed components, structural pipes, and various fabricated products.
Jiyuan’s GB 40Mn2 medium carbon steel round bar delivers superior mechanical properties that make it an ideal choice for components requiring enhanced strength and impact resistance. This widely utilized structural steel offers an optimal balance of toughness, ductility, and strength characteristics, specifically engineered for applications subjected to medium to high stress conditions.
what is alloy steel round bar？
An alloy steel round bar is a cylindrical steel product manufactured by combining iron with strategic alloying elements such as chromium, nickel, molybdenum, and vanadium. These additions enhance the base material’s mechanical properties, creating a superior engineering material that offers greater strength, hardness, toughness, and wear resistance compared to standard carbon steel.
What is special steel round bar?
Special steel round bar refers to high-performance, long steel products with a circular cross-section, engineered for applications demanding superior strength, hardness, or wear resistance—unlike common reinforcement bars used in concrete. It is a precision-engineered raw material supplied in various conditions (hot-rolled, cold-drawn, or turned) for creating critical components like shafts, gears, and fasteners in automotive, machinery, and aerospace industries.
What is 4140 Alloy Steel Round Bar?
AISI 4140 alloy steel round bar is a versatile chromium-molybdenum steel known for its high strength, good toughness, and excellent wear resistance. It is categorized as a high-tensile, medium-carbon steel that can be heat-treated to achieve a wide range of mechanical properties.
Why Jiyuan Steel Stands Out？
China’s leading alloy steel round bar manufacturers include major producers like Baowu Steel, Ansteel, Shagang Group, and Shougang Group. Among these industrial giants, Henan Jiyuan Iron & Steel Group has established itself as a premier specialist in alloy steel round bar production through decades of technological refinement and quality focus.
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