
Q345B Steel Channels - High-Strength Structural Steel
Premium Q345B steel channels for construction, bridges & industrial applications. Hot-rolled/welded, customizable sizes (3-30mm), ASTM/EN/JIS/GB compliant. High strength (235-355MPa), corrosion-resistant. MOQ 5 tons, global delivery
Key Attributes
- Product Name: Q345B Steel Channels
- Standard: ASTM A36,A572/EN 10025,10034/JIS G3101,G3136/GB T11263/AS3679.1
- Brand: Q235B,Q345B,Q390,Q420,A36,A572,S235,S375,S355,SS400,SM490,SM520,Grade 250,Grade350 etc.
- Technique: Hot rolled & welded
- Wing Width: 3mm-8mm or customized
- Wing Thickness: 3mm-10mm or customized
- Web Width: 7.5mm-30mm or customized
- Web Thickness: 4.5mm-15mm or customized


