Hamedsoft Engineering Company

Hamedsoft Engineering Group

Heat treatment and Advanced NDT

Also manufactures of thermal equipment in numerous industries including power generation, oil and gas industries.

Any kind of heat treatment on any kind of shapes, like Spherical tanks, Towers, Raactors, Pipeline, ...
Advanced NDT services on Headerboxes, Storage Tanks or other metal products.
Produce, Maintenance, Upgrade the PWHT and heat treatment machines.
The most powerfull company for PWHT on spherical tanks.

years of experiences

Happy Clients

167

Successfull projects

PWHT and Advanced NDT

Latest Projects

Alay mahestan petrochemical complex

Kangaan - Iran

Our specific servicesا

Usually ask us

Why Stress Relief Matters

If stress relief (PWHT) is not carried out after welding, the weld and the part are exposed to various mechanical and metallurgical issues that usually manifest sooner or later. In short: a weld without stress relief is like a compressed spring that may release at any moment.

Hamed Changizi

CEO

Results of Stress Relief Testing (PWHT)

Stress relief by controlled heating of the part (typically 550 to 650 degrees for steels) results in: reduced residual stresses, a more stable microstructure, and predictable part behavior in service.

Hamed Changizi

CEO

How Does the Number of Elements Affect PAUT Results?

The number of elements is one of the most important specifications of a PAUT probe and directly affects scan quality, focusing power, and inspection speed. These effects include improved beam focus, better image quality, wider scan range, and flexibility in designing focal laws. A higher number of elements enables focusing at different depths, beam steering, and more complex scan execution.

Hamid Mohammadi

QC - QA

Main Consequences of Not Performing Stress Relief

Delayed cracks: high residual stresses cause cracks that may appear hours or days later. Distortion of the part: internal stresses cause unwanted deformation, especially in large structures. Reduced fatigue life: the part fails sooner under cyclic loading. Stress concentration in the weld zone: causes premature failure in service. Reduced impact resistance: especially in alloy steels, toughness decreases. Reduced dimensional stability: machined parts later deform. Increased risk of brittle fracture: especially in high-carbon steels or thick parts.

Hamed Changizi

CEO

How Does Phased Array Work?

In this method, instead of using a single ultrasonic crystal (conventional ultrasonic testing), an array of small elements is used. By controlling the pulse timing sent to each element, the device can change the beam angle, scan the beam without mechanical movement, and focus at different depths.

Hamid Mohammadi

QC - QA

What Are the Advantages of PAUT?

High inspection speed; higher accuracy compared to conventional UT; the ability to image defects (such as a weld cross-section image); recording and storing results for later review; better detection of cracks, porosity, and lack of fusion.