AISI 1018 Round Bars – High-Quality Low Carbon Steel Bars for Industrial Use
AISI 1018 round bars are one of the most widely used low-carbon steel products across engineering, manufacturing, and construction industries. Known for their excellent machinability, smooth surface finish, and reliable mechanical performance, these bars are ideal for both general-purpose and precision applications.
We supply AISI 1018 carbon steel round bar products in multiple forms, such as hot rolled, cold rolled, bright drawn, forged, and black bars. Our material is processed using proven methods and supplied with consistent quality, making it suitable for demanding industrial environments.
If you are looking for SAE 1018 round bars, 1018 bright bar, AISI 1018 hex bars, or a reliable AISI 1018 round bar supplier in Mumbai, India, this guide will help you understand the material clearly before selecting the right product.
What Is AISI 1018 Carbon Steel?
AISI 1018 is a low-carbon steel grade containing approximately 0.15–0.20% carbon. This low carbon content gives the steel excellent ductility, good weldability, and high machinability. Because of its uniform composition, a 1018 carbon steel bar is easy to machine, bend, and form without cracking.
AISI 1018 is commonly used for parts that require precision machining and can also be case hardened to improve surface hardness while keeping a tough inner core.
Equivalent Standards
- SAE 1018
- AISI UNS G10180
- DIN 1.0453
- C18 Carbon Steel
Manufacturing Forms of AISI 1018 Bars
We supply AISI 1018 bars in multiple forms to suit different industrial requirements.
Hot-Rolled SAE 1018 Rod
Hot-rolled SAE 1018 rod is produced by rolling steel at high temperatures, making it easier to shape and form.
Key Benefits:
- Cost-effective
- Good mechanical strength
- Ideal for fabrication and structural work
Common uses include construction frames, base plates, and welded structures.
1018 Cold-Rolled Steel Bars
As a trusted 1018 cold-rolled steel flat bar manufacturer in India, we supply cold-rolled bars with improved dimensional accuracy and surface quality.
Advantages:
- Better tolerance control
- Higher tensile strength than hot-rolled bars
- Cleaner surface finish
Used in automotive components, machinery parts, and precision tools.
1018 Bright Bar
1018 bright bar is cold-drawn and polished, offering excellent surface finish and precise dimensions.
Applications:
- CNC machining
- Shafts and spindles
- Fasteners and bolts
- Hydraulic components
Bright bars are often selected when appearance and accuracy matter.
AISI 1018 Carbon Steel Black Bars
AISI 1018 carbon steel black bars have a dark oxide layer formed during hot rolling. These bars are strong and economical.
Used in:
- Structural fabrication
- Forging applications
- Heavy equipment parts
Carbon Steel 1018 Forged Bar
Carbon steel 1018 forged bar is produced using controlled forging techniques that improve grain structure and toughness.
Ideal for:
- Load-bearing components
- Automotive forgings
- Industrial machinery parts
Shapes Available in AISI 1018 Steel
We supply AISI 1018 steel in multiple shapes:
- AISI 1018 Round Bar – Shafts, pins, rods
- AISI 1018 Low Carbon Steel Square Bar – Frames, supports
- AISI 1018 Hex Bars – Nuts, bolts, fasteners
AISI 1018 Round Bar – Specifications Chart
| Parameter | Details |
| Material Grade | AISI 1018 |
| UNS Number | G10180 |
| DIN Equivalent | 1.0453 |
| Form | Round Bar, Square Bar, Hex Bar, Flat Bar |
| Diameter Range | 6 mm to 500 mm |
| Length | Random, Cut Length, Custom Length |
| Manufacturing Process | Hot Rolled, Cold Rolled, Cold Drawn, Forged |
| Surface Finish | Black, Bright, Turned, Polished |
| Heat Treatment | Annealed, Normalized, Case Hardened |
| Standards | ASTM, AISI, SAE, DIN |
| Country of Origin | India |
Chemical Composition of AISI 1018 Carbon Steel
Understanding chemical composition is important because it directly affects strength, machinability, and weldability. AISI 1018 steel is valued for its controlled chemistry and consistency.
AISI 1018 Chemical Composition Chart (%)
| Element | Percentage (%) |
| Carbon (C) | 0.15 – 0.20 |
| Manganese (Mn) | 0.60 – 0.90 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.050 |
| Iron (Fe) | Balance |
This balanced composition makes AISI 1018 low carbon steel square bar and round bars easy to weld and machine, even in high-speed CNC operations.
Mechanical Properties of AISI 1018 Steel
The mechanical properties explain how the material behaves under load, stress, and deformation.
AISI 1018 Mechanical Property Chart
| Property | Typical Value |
| Tensile Strength | 440 – 500 MPa |
| Yield Strength | 370 MPa (approx.) |
| Elongation | 15 – 25% |
| Hardness | 126 – 156 HB |
| Density | 7.87 g/cm³ |
These values make SAE 1018 round bars ideal for parts that require moderate strength with excellent formability.
Applications of AISI 1018 Round Bars
Based on industry usage and practical experience, AISI 1018 carbon steel round bar is widely used in:
- Automotive shafts and axles
- Engineering fasteners
- Agricultural equipment
- Machine components
- Construction and fabrication
- Hydraulic and pneumatic systems
- Pins, studs, and bushings
Because of its excellent machinability, 1018 carbon steel bar is a preferred choice for mass production.
Why Choose Our AISI UNS G10180 Round Bar?
- Consistent quality across batches
- Trusted sourcing from approved mills
- Technical support from experienced professionals
- Fast delivery across India and exports
We believe in supplying steel that works exactly as expected on the shop floor.
AISI 1018 round bars are a dependable and cost-effective solution for industries requiring low-carbon steel with excellent machinability and balanced strength. Whether you need hot-rolled SAE 1018 rod, 1018 bright bar, AISI 1018 hex bars, or carbon steel 1018 forged bar, this grade offers long-term performance and versatility.
If you are searching for a trusted AISI 1018 round bar supplier in Mumbai, India, or a proven DIN 1.0453 rods exporter in India, we are ready to meet your requirements with quality material and professional service.
Global Reach
ASC LLP boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality 1018 Round Bars. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.
Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
