Basics

Preheat and Interpass Temperature Control Welding is a complex process that goes beyond simply melting and joining metals. It involves meticulous preparation and precise execution to achieve strong, durable welds. Among the many critical aspects of welding, preheat and interpass temperature control are paramount. These techniques play a vital role …

API 1104: Standard for Welding Pipelines Have you ever wondered what ensures that the welds holding our pipelines together are strong, durable, and safe? Enter API 1104, a standard created by the American Petroleum Institute (API) that establishes guidelines for welding pipelines. This standard plays a crucial role in maintaining …

Understanding Welding Electrodes Classification Welding electrodes might not look like much, but they’re the unsung heroes of the welding world. They come in different types, sizes, and materials, making it essential to understand their classification. Let’s dive into the fascinating details of welding electrodes and how they’re categorized to suit …

Introduction to ASME Section IX ASME Section IX is a pivotal section within the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (BPVC). Its primary function is to establish and maintain standards for the qualification of welding and brazing procedures, as well as the performance of welders …

What is Welding Performance Qualification (WPQ)? Welding is an art and a science, but it’s not something just anyone can pick up and master. Enter Welding Performance Qualification (WPQ) – a process designed to ensure that welders are capable of creating strong, reliable welds that meet specific industry standards. WPQ …

Boiler & Pressure Vessel Welding Standards Welding plays a crucial role in the fabrication and maintenance of boilers and pressure vessels, two key components in industries like power generation, oil and gas, and manufacturing. But how do we ensure these welds are safe, reliable, and compliant? That’s where welding standards …

What is Cap Pass in Welding? Welding, at its core, involves joining two or more pieces of metal to create a solid and durable structure. However, achieving this outcome requires more than just running a bead of molten metal along the joint. Different stages, or passes, contribute to the quality …

How to measure Fillet Weld Size Welding is an essential process in many industries, and fillet welds are one of the most common types of welds used to join metal parts. However, the quality of a fillet weld largely depends on its size, which directly affects its strength and functionality. …

ASME B31.4 vs ASME B31.8 Pipelines are the backbone of global transportation for fluids and gases, enabling the efficient movement of essential resources over vast distances. The ASME (American Society of Mechanical Engineers) has developed a series of standards that ensure the safety, efficiency, and reliability of these pipelines. Among …

Differences Between Water-tube and Fire-tube Boilers Introduction Boilers are central to energy generation and industrial heating processes, and understanding their design is critical for optimal performance. For a boiler engineer, the distinctions between water-tube and fire-tube boilers go beyond basic operation—they influence efficiency, safety, and application suitability. Let’s explore their …