Construction Codes & Significance Postweld heat treatment on the weld of ASTM A335 P11 seamless pipes. The heat treatment is performed by a flexible ceramic pad heater. Seamless pipes made of low-alloy steel ASTM A335 Grade P11 can be used for power piping (ASME B31.1) or process piping (ASME B31.3) at elevated temperatures. After joining the two ASTM A335 P11 pipes together by a welding
Industrial Inspection Inspection 4 Industry LLC,Provides Global Industrial Inspection Services. The services covers shop inspection, site inspection and plant inspection. The articles are about different inspection field categories such as shop inspection, site inspection, and in-service inspection requirements. The articles present you applicable codes and standards. There will also
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
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
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
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
Induction Heating The most common methods for achieving a more controlled preheat temperature are induction heating and electrical resistance heating. “The equipment used for induction is considerably more expensive than that used for electrical resistance heating,” said Fong. “However it does get your steel hotter quicker. It still offers you much more control than what you
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
Preheating involves heating the base metal, either in its entirety or just the region surrounding the joint, to a specific desired temperature, called the preheat temperature, prior to welding. Heating may be continued during the welding process, but frequently the heat from welding is sufficient to maintain the desired temperature without a continuation of the external heat source. The interpass temperature,
Heating the base metal adds time and money up front, but can save time and money by minimizing potential for weld failure. Here’s how to determine the best preheating method – convection ovens, induction, open flame, or resistance heating – for your application. Posted: July 24, 2020 MELTING POINT COLUMN BY NICK PETERSON Welding preheat is important in many
Weldingis an essential part of operating and maintaining assets in the petroleum (upstream, midstream, downstream) and chemical processing industries. While it has many useful applications, the welding process can inadvertently weaken equipment by imparting residual stresses into a material, leading to reduced material properties. In order to ensure the material strength of a part is retained
All ASME Code Stamped Section VIIIpressure vesselsmust undergo a pressure test.Cryogenic pressure vesselswith Code Stamps are no different. The requirements for this pressure testing is contained within paragraphs “UG-99 Hydrostatic Pressure Test”, “UG-100 Pneumatic Test”, and “UG-101 Proof Tests to Establish Maximum Allowable Working Pressure”.
Many different types of welding inspection exist to keep pipes and structures safe and secure. Countless building codes require strict adherence to project plan specifications and inspection guidelines, according to Weld Procedures. The American Weld Institute usually produces code for multiple story structures, while the American Petroleum Institute issues construction and inspection guidelines for
Before applying for the detailed PWHT requirements and exemption in these paragraphs, satisfactory weld procedure qualifications of the welding procedures specification to be used shall be performed in accordance with all the essential variables of ASME SECTION IX including conditions of post-weld heat treatment and including other restrictions listed below. While carrying out local post-weld
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
we provide the following services to all types of industries,