Omega Profile Steel
Grade: Q235-355B ; S275JR, etc.
Surface treatment: Mild steel; galvanized
Standard: AISI, ASTM, BS, DIN, GB, JIS
Description
Omega Profile Steel
1. Grade: Q235-355B ; S275JR, etc.
2. Surface treatment: Mild steel; galvanized
3. Standard: AISI, ASTM, BS, DIN, GB, JIS
4. Certification: ISO9001, EN10219, EN10210, etc.
|
Product Name |
Omega Profile Steel |
|
Material |
Q235-355B or as per the customer's requirement |
|
Size |
60*60, 40*80,84*120, 62*132, or other sizes as the customer's requirement |
|
Thickness |
1.5-8.0 |
|
Length |
2-11.8m |
|
Surface Treatment |
Black or galvanized |
|
Port |
Xingang Port, Tianjin, China |
|
Payment |
T/T, or L/C |
|
Used |
Construction material |
Omega profile steel (also known as Omega section, hat channel profile, or O-profile steel) is a heavy-duty cold-formed structural steel section shaped like the Greek letter Omega (Ω). Engineered with broad outer flanges and a reinforced hat-shaped crown, it provides exceptional load distribution, superior flexural strength, and high resistance to torsional bending or warping.
Key Technical Advantages & Specifications:
- High Strength-to-Weight Ratio: Precision cold-formed to maximize structural load capacity while reducing overall steel consumption.
- Superior Corrosion Resistance: Available with pre-galvanized, hot-dip galvanized, or Zinc-Aluminum-Magnesium (ZAM) coatings for prolonged service life in harsh outdoor environments.
- Versatile Fabrication: Easy to punch, cut, weld, and assemble for rapid modular construction and custom engineering designs.
Common Structural Applications:
- Solar panel mounting structure profiles and racking rails
- Agricultural greenhouse framing and roof purlins
- Drywall framing systems, ceiling hat channels, and wall cladding studs
- Bridge decking support, trailer chassis framing, and highway infrastructure
| Standard | Region | Covers | Common grades | Equivalent note |
|
GB/T 6728 |
China |
Cold-formed hollow sections |
Q195/Q235/Q355 |
≈ EN10219 in scope |
|
EN 10219 |
EU |
Cold-formed welded HSS |
S235/S275/S355 |
Global export default |
|
ASTM A500 |
USA |
Cold-formed carbon HSS |
Gr.A/B/C |
Common in Americas |
GB/T 6728 is the Chinese national standard for cold-formed steel hollow sections, functionally parallel to EN 10219; many Chinese mills (including Yuantai Derun) supply both with dual certification.
FAQ
Q:What is GB/T 6728?
A:GB/T 6728 is the Chinese national standard for cold-formed welded structural hollow sections (SHS, RHS, CHS). Made from carbon steel (Q195, Q235B, Q355B), it is widely used in global building frames, solar racking, and infrastructure projects.
Q:What is the main difference between GB/T 6728 and EN 10219?
A:GB/T 6728 is the Chinese standard, while EN 10219 is the European standard for cold-formed hollow sections. They differ primarily in grade designations and CE testing requirements:
GB/T 6728: Uses Q235B, Q355B, Q355D.
EN 10219: Uses S235JRH, S275J0H, S355J2H.
(Note: Q235B is functionally equivalent to S235JRH, and Q355D equals S355J2H.)
Q:Can I get GB/T 6728 pipes with an EN 10219 certificate?
A:Yes. Dual-certified Mill Test Certificates covering both GB/T 6728 and EN 10219 are available upon client request. Production and testing (such as Charpy impact tests) will be arranged to satisfy both standards.
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