AISI ASTM 1018 1020 1045 Carbon Steel Flat Bar 4-150mm Width for Building Frame Structures
Our carbon steel flat bars are versatile structural components suitable for various industrial applications including building frames, machinery parts, automotive components, and construction projects.
We offer multiple steel grades to meet diverse requirements:
- AISI/ASMT 1018, 1020, 1045, 1040, 1025, 1065
- Alloy steels: 4140, 4130
- International standards: C45, St52, Ss400, A36
- Hot-rolled Steel Flat: Ideal for general fabrication, maintenance, agricultural equipment, and transportation applications
- 1018 Cold Finished Flat Bar: Features close dimensional accuracy and smooth surface finish for fixtures, mounting plates, and machine components
- 6061 Aluminum Flat Bar: Lightweight and corrosion-resistant option for framework, braces, supports, and trim
| Width (mm) | 4mm | 5mm | 6mm | 7mm | 8mm | 9mm | 10mm | 11mm | 12mm | 14mm | 16mm | 18mm | 20mm | 22mm | 25mm | 28mm | 30mm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12 | 0.38 | 0.47 | 0.57 | 0.66 | 0.75 | ||||||||||||
| 14 | 0.44 | 0.55 | 0.66 | 0.77 | 0.88 | ||||||||||||
| 16 | 0.5 | 0.63 | 0.75 | 0.88 | 1 | 1.15 | 1.26 | ||||||||||
| 18 | 0.57 | 0.71 | 0.85 | 0.99 | 1.13 | 1.27 | 1.41 | ||||||||||
| 20 | 0.63 | 0.79 | 0.94 | 1.1 | 1.26 | 1.41 | 1.57 | 1.73 | 1.88 | ||||||||
| 22 | 0.69 | 0.86 | 1.04 | 1.21 | 1.38 | 1.55 | 1.73 | 1.9 | 2.07 | ||||||||
| 25 | 0.79 | 0.98 | 1.18 | 1.37 | 1.57 | 1.77 | 1.96 | 2.16 | 2.36 | 2.75 | 3.14 | ||||||
| 28 | 0.88 | 1.1 | 1.32 | 1.54 | 1.76 | 1.98 | 2.2 | 2.42 | 2.64 | 3.08 | 3.53 | ||||||
| 30 | 0.94 | 1.18 | 1.41 | 1.65 | 1.88 | 2.12 | 2.36 | 2.59 | 2.83 | 3.36 | 3.77 | 4.24 | 4.71 | ||||
| 40 | 1.26 | 1.57 | 1.88 | 2.2 | 2.51 | 2.83 | 3.14 | 3.45 | 3.77 | 4.4 | 5.02 | 5.65 | 6.28 | 6.91 | 7.85 | 8.79 | |
| 50 | 1.57 | 1.96 | 2.36 | 2.75 | 3.14 | 3.53 | 3.93 | 4.32 | 4.71 | 5.5 | 6.28 | 7.07 | 7.85 | 8.64 | 9.81 | 10.99 | 11.78 |
- Quality First: Strict production and inspection according to international standards
- Competitive Pricing: Market-based discounts and cost-effective solutions
- Transaction Security: Complete protection for customer investments
- After-sales Support: Comprehensive problem resolution and customer service
- Long-term Partnership: Consistent quality, competitive pricing, and reliable service
We maintain multiple warehouses with stock availability for immediate shipment. Custom production orders are completed within 10-15 days, with larger orders scheduled according to specific requirements.
Shandong Zhengde Metal Manufacturing Co., Ltd. is an integrated enterprise specializing in hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, section steel, steel pipes, steel wires, metal mesh, stainless steel, aluminum, copper and other metal products. With five production bases across China and over 100 production lines, we export to more than 50 countries worldwide.
- Are you a trading company or factory? We are a direct factory with over 30 years of production experience
- What are your advantages? High-quality products with competitive pricing and professional export services
- How can I trust you? We prioritize honesty and can provide client references. Trade assurance protects your orders and payments
- Do you provide product warranty? Yes, we offer 100% satisfaction guarantee on all items
- Can I visit your factory? Yes, we welcome factory visits at any time
- What is your delivery time? Stock items ship immediately; custom production takes 10-15 days
- What payment methods do you accept? T/T, L/C at sight, Cash, Western Union, and other methods upon request
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.