1018 Carbon Steel Square is a widely used low-carbon steel product that combines excellent machinability with reliable strength. Produced according to ASTM A29/A108 standards, it features a uniform chemical composition and stable mechanical performance. With its low carbon content, this steel square provides superior weldability and formability, making it suitable for machining, welding, drilling, and fabrication. At Jiangsu Cunrui Metal Products Co., Ltd., all products are supplied with mill test certificates, optional third-party inspection reports, and full traceability, ensuring compliance with international quality standards.
Features & Advantages
Good Machinability: Excellent for drilling, turning, milling, and machining applications.
High Surface Quality: Smooth finish suitable for further processing or plating.
Consistent Mechanical Properties: Balanced yield and tensile strength with reliable toughness.
Excellent Weldability: Low carbon content allows easy welding and fabrication.
Reliable Documentation: Supplied with mill certificates and optional SGS/BV inspection.
Applications
1018 Carbon Steel Square is commonly used across multiple industries:
Automotive & Machinery: Shafts, axles, gears, and pins.
Construction: Reinforcement, frameworks, and structural supports.
Fabrication: Custom parts, fasteners, and precision tools.
General Engineering: Machine parts, jigs, and fixtures requiring precision machining.
Product Specifications & Technical Parameters
Basic Information
|
Parameter |
Details |
|
Material Grade |
1018 Carbon Steel |
|
Shape |
Square Bar |
|
Standard |
ASTM A29 / ASTM A108 |
|
Surface Treatment |
Black, Polished, Oiled, Galvanized, or Customized |
|
Dimensions |
Side width: 6mm – 200mm; Length: 1m–6m (customized available) |
|
Yield Strength |
≥ 370 MPa |
|
Tensile Strength |
440–670 MPa |
|
Hardness |
126–197 HBW (annealed) |
|
Certification |
ISO, SGS, BV, CE, Mill Test Certificate |
Typical Chemical Composition (1018 Carbon Steel):
|
Element |
Content (%) |
|
Carbon (C) |
0.15 – 0.20 |
|
Manganese (Mn) |
0.60 – 0.90 |
|
Phosphorus (P) |
≤ 0.04 |
|
Sulfur (S) |
≤ 0.05 |
|
Iron (Fe) |
Balance |
Customization Services
At Jiangsu Cunrui Metal Products Co., Ltd., we provide complete customization for 1018 Carbon Steel Square:
Non-standard dimensions and special tolerances available
Processing services: cutting, grinding, drilling, milling, and welding
Surface treatment options: galvanizing, polishing, powder coating, or painting
OEM/ODM services with customer drawings and specifications
Flexible MOQ and fast response to meet urgent project requirements
Pricing & Delivery
Competitive Pricing
Affordable unit prices with bulk order discounts.
Delivery Time
Standard sizes available from stock; customized production delivered in 7–20 days.
Packaging
Export-standard seaworthy packaging with anti-rust protection.
Our Strength
Advanced production facilities and strict quality management
Annual production capacity over 200,000 tons
More than 15 years of export experience, supplying to 60+ countries worldwide
International certifications: ISO, SGS, BV, CE
Professional technical and R&D team to support complex engineering needs
Service & Support
Fast inquiry response within 12 hours
Professional consultation on material selection and applications
Reliable packaging and logistics to ensure safe delivery
After-sales guarantee: product return or replacement for quality issues
Long-term supply partnership and technical support for global clients
FAQ
Q1: What sizes are available for 1018 Carbon Steel Square?
A1: Standard sizes range from 6mm to 200mm side width, with custom sizes available on request.
Q2: Do you support machining or processing services?
A2: Yes, we offer cutting, drilling, welding, and CNC machining according to drawings.
Q3: Can I order small trial quantities?
A3: Yes, flexible MOQ is supported for trial orders or urgent needs.
Q4: How do you guarantee product quality?
A4: Every batch is supplied with mill test certificates and strict QC inspection, with third-party verification available.
Q5: What is your delivery time?
A5: Stock items can be shipped immediately, while customized orders are delivered within 7–20 days.
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