Q345C Universal Beam
Q345C is a steel grade commonly used in China. Universal beams, also known as I-beams or H-beams, are structural steel members with an "I" or "H" cross-section. Q345C Universal Beams are specific I-beams made from Q345C steel.
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Product Name
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Q345C Universal Beam |
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Size
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1.Web Width (H): 100-900mm
2.Flange Width (B): 100-300mm
3. Web Thickness (t1): 5-30mm
4. Flange Thickness (t2): 5-30m
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Standard
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JIS G3101 EN10025 ASTM A36 ASTM A572 ASTM A992
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Grade
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Q235B Q345B Q420C Q460C SS400 SS540 S235 S275 S355 A36 A572 G50 G60
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Length
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12m 6m or customized
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Technique
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Hot rolled
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Packing
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In bundle fasten by steel strip
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The low carbon content of Q345C Universal Beams can offer several advantages in welding for building structures:
Improved Weldability: Low carbon content generally makes Q345C steel more weldable compared to higher carbon steels. It reduces the risk of weld cracking and improves the quality of the weld joint.
Reduced Preheating Requirements: Low carbon steels like Q345C typically require lower preheating temperatures before welding, which can lead to time and cost savings during fabrication.
Lower Risk of Brittle Fracture: Low carbon steels have a reduced risk of brittle fracture, especially in cold weather conditions. This is crucial for building structures, as it enhances their resilience and safety.
Less Sensitivity to Heat Input: Q345C Universal Beams with low carbon content are generally less sensitive to heat input during welding, which can help prevent heat-affected zone (HAZ) issues, such as distortion and reduced mechanical properties.
Improved Ductility: The low carbon content of Q345C steel contributes to its improved ductility, allowing the material to undergo plastic deformation during welding without fracturing.
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