Q195 Straight Seam Welded Tube

Porosity and Gas Pockets: These are caused by trapped gases in the weld pool that fail to escape before solidification. They can lead to a reduction in the strength of the weld and are more prevalent in processes using shielding gas.

Undercut: This occurs when the edges of the joint melt more than the base metal due to excessive heat, resulting in a groove or notch along the weld. It weakens the weld's load-bearing capacity.

Cracks: These are linear fractures that can form in the weld metal, heat-affected zone (HAZ), or base metal. They can be caused by high welding stresses, improper heat input, or unfavorable alloying elements and are considered one of the most severe defects due to their potential to cause sudden failure.

Incomplete Fusion: This happens when the weld metal does not fully fuse with the base metal, which can lead to a weak joint. It can occur due to insufficient heat input, poor joint design, or improper welding technique.

Incomplete Penetration: This defect occurs when the weld metal does not penetrate through the joint completely, leaving areas of the base metal unjoined. It can be caused by incorrect joint alignment, inadequate heat input, or excessive welding speed.

1.Can you give warranty of your products?
A: Yes, we extend a 100% satisfaction guarantee on all items. Please feel free to feedback immediately if you are not pleased with our quality or service.
2.Do you provide the samples? Free or Extra?
A: The cost of the samples is according to the value.The cost of the freight is necessary.
3.what kind of payment does your company support?
A: T/T, 100% L/C at sight, Cash, Western Union are all accepted if you have other payment,please contact me.

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