0086-21-61182423

A283GrA/B/C/D, A36, S235JR, S235J0, S235J2, S275JR, S275JO, S275J2, S355JR Channel steel /beam steel/Square pipe ----Katalor Enterprises

0086-21-61182423

[email protected]

PRODUCT

more +

Steel Processing

Katalor keeps more than 10,000 tons SMn420 steel plates in stock each month. We can meet our customer's any quantity request. Based on these stock source, our advantage industry spread into steel process like : cutting ( any size and any shape ) drilling, welding, milling, machining and steel structure.

more +Latest News

Saw Cutting katalor supplied

Saw Cutting is High Accuracy, High Quality .According to the form of the tool, sawing/ saw cutting includes bow sawing, circular sawing, band sawing and sawing of the grinding wheel. Saw cutting belongs to mechanical cutting method. Sawing machine, d
ASTM A240 202 Stainless Square Tube Mechanical Properties

ASTM A240 202 Stainless Square Tube can be offered by us, we have ASTM A240 202 Stainless Square Tube suppliers and manufacturer ,if you need ASTM A240 202 Stainless Square Tube price and specification ,please contact us.
S355j2 channel steel bar mechanical properties

S355J2 is the most common high strength steel for construction that we sell. It is a non-alloy structural steel to EN10025-2 2004. S355j2 channel steel offers high yield and THE BEST WEIGHT LOSS PILLS tensile strength with a minimum yield strength of

Katalor Enterprises are mainly engaged in marketing and processing of various specifications of carbon steel , stainless steel, corten steel . Not only offering the steel products, Katalor Enterprises but also can offer the steel processing service.

CONTACT DETAILS

Address

Room 301,Unit 6,lane 2500,xiupu Road,Kangqiao Industrial Area,Pudong New District,Shanghai

Phone / Fax

TEL : 0086-21-61182423 or PHONE : 0086-18317160019
FAX : 0086-21-61182425

E-mail

E-mail : [email protected]

CONTACT FORM

">[email protected]

You are here : section steel--Katalor steel > News > 正文Causes of welding deformation of GB/T1591 Q345C I beam steel

Causes of welding deformation of GB/T1591 Q345C I beam steel

The fundamental cause of GB/T1591 Q345C I beam steel welding deformation is the inhomogeneity of welding heat field. During welding, the high temperature region of the GB/T1591 Q345C I beam steel produces compression plastic deformation, and the shrinkage of this part is prevented by other parts after welding, so the GB/T1591 Q345C I beam steel produces welding residual stress and deformation.

1. Flange angle deformation：Due to the joint weld between GB/T1591 Q345C I beam steel upper and lower flange and web plate, the front and back of the wing plate are unevenly heated, which causes angular deformation of the wing plate. The GB/T1591 Q345C I beam steel deformation is not only related to the stiffness and welding size of the flange, but also to the welding method and welding line energy.

2. Web instability：GB/T1591 Q345C I beam steel web instability is caused by excessive compressive stress. And web compressive stress has two main reasons: in the GB/T1591 Q345C I beam steel welding process, the longitudinal contraction of fillet weld between the flange and web produces residual compressive stress on the web. The other is the longitudinal compressive stress of the web butt weld is formed in the web on both sides of the weld due to its longitudinal contraction during the welding process.

3. Other deformation: Mainly includes the GB/T1591 Q345C I beam steel side bending, arch and distortion. The reason is gas cutting and unreasonable welding sequence. Once this kind of welding deformation exceeds the standard requirement, the GB/T1591 Q345C I beam steel correction is very difficult. So technical measures should be taken in construction to avoid such deformation as possible.

Katalor is a professional steel supplier and exporter in China, we have more than 10 years in GB/T1591 Q345C I beam steel. And if you have any confusion about GB/T1591 Q345C I beam steel, please contatc us freely. We will reply you as soon as possible. Welcome to cooperate with us if you have any need in GB/T1591 Q345C I beam steel.