ABICA EC ENGINEERING AND CONSTRUCTION, INSPECTION SERVICES FOR PROJECTS AND SHUTDOWN

Our Services Preheat in

Preheat in Welding: What Is It and When Should You Use It? Preheating in welding is used to help ensure weld quality and reduce the occurrence of cracking and other problems that can result in costly rework. Welding preheat is commonly used before welding steel or steel alloy pipes or plates that are 1 inch thick or more. Preheating is often required in shop and field welding for oil and
Have you heard of post weld heat treatment (PWHT)? Of course you have. If you are involved in welding you have definitely heard this term. But what is PHWT? When is PWHT required? What temperature should PWHT be done at? Heat treating of materials can be a very complicated subject, but when it comes to heat treatment after welding it boils down to a simple concept: PWHT is done in
Our Services for Al Taweelah

We provided services of QA/QC for the project of Al-Taweelah-Alumina refinery for the inspection of piping, preheat, PWHT, NDT, and hydro test inspection. Moreover, we provided RT review facilities as well. As API 510 certified inspector services of mechanical inspection were provided. About the project ofAl-Taweelah alumina refinery. Al-Taweelah alumina refinery is a strategic growth
Post-weld heat treatment or PWHT is a controlled process that involves reheating the metal below its lower critical transformation temperature, following a welding process. The material is then held at the elevated temperature for a predetermined period of time to alleviate residual stresses, increase the strength, increase or decrease the hardness, and reduce the risk of cracking by microstructural
Our Service for Post Weld

The procedure of Post Weld Heat Treatment projects is often recorded in a quality document beforehand. It lists the requirements that should be met for the relevant heat treatments and that will lead to a guaranteed result. Post Weld Heat Treatment (PWHT) is the international term for stress relief annealing: a heat treatment that is carried out – among other things – after welding work
Our Services Radiographic

Radiographic Testing Procedure This content provides you with a example Radiographic Testing Procedure. This is a general and sample RT procedure and you need to modify it to meet your project specifications. 1. SCOPE: 1.1-This Procedure describes the general requirements for radiography examination (RT) according to related approved weld map for the metallic welding and casting
Our Services Why pre

Why is preheat sometimes required before welding? Preheating the base material to be welded minimises the temperature difference between the material and the arc, slows the cooling rate in the weld area and reduces the risk of cracking. The need for preheat increases with steel thickness, weld restraint, the carbon/alloy content of the steel, and the diffusible hydrogen of the weld metal. Preheat
The Reasons for and Misconceptions

Q: We are expanding our job shop and adding the capability to work with much heavier structures, including considerably thicker materials. Some of these jobs specify high-strength materials and preheating. Some of our welders claim preheating is performed to remove water from the steel. Can you expand on this? A: This is an excellent topic for discussion! Preheating and postweld stress relief are
Our Services Hydrostatic

Hydrostatic test Ahydrostatic testis a way in whichpressure vesselssuch aspipelines,plumbing,gas cylinders,boilersand fuel tanks can be tested for strength and leaks. The test involves filling the vessel or pipe system with a liquid, usually water, which may be dyed to aid in visual leak detection, and pressurization of the vessel to the specified
Our Services Comparing

One of the most common uses of nondestructive testing (NDT) is the examination of weld integrity. This is because welds are extraordinarily common in critical industrial applications across the world. The ability to inspect welds nondestructively is essential, as destroying one for testing necessitates replacing it with a new, untested weld. As such, there has been significant technological development
Our Services Radiograph

In addition to producing high quality radiographs, theradiographer must also be skilled inradiographic interpretation .Interpretation of radiographs takes place in three basic steps: (1) detection, (2)interpretation , and (3)evaluation . All of these steps make use of the radiographer'svisual
Our Services Inspection

As anyone in the fabricating and welding business knows, process and part inspection is a critical component of a successful business. Build and weld a poor part will simply guarantee failure. Today, welding associations, such as the Canadian Welding Bureau, offer certification courses to help welders learn the ins and outs of proper inspection processes, but before taking the course, you should
Our Services Overview

Radiographic Testing (RT)is anondestructive examination (NDE)technique that involves the use of either x-rays or gamma rays to view the internal structure of a component. In the petrochemical industry, RT is often used to inspect machinery, such aspressure vesselsand valves, to detect for flaws. RT is also used to inspect weld repairs. Compared to other NDE techniques,
Our Services Vessel Pressure

The Vessel Pressure Testing article provides you with information about pressure vessel hydro-static testing requirements and related item in pressure vessel inspection. The requirements have been described based on ASME Code Section VIII. You need to do this test after completion of the construction process, but before the internal parts assembly and also before painting process. This content
Our Services Quality

Ensuring a topnotch weld inspection programâ€‹ Ensuring that welders follow specific procedures is a crucial step in the overall welding quality system. There are a number of reasons to inspect a weld, the most fundamental of which is to determine whether its quality is good enough for its intended application. To evaluate the quality of a weld, it is necessary