What is stainless steel and its types

Stainless steel also known as inox, corrosion-resistant steel(CRES), and rustless steel, is an alloy of iron which is resistant to corrosion and rust. It contains iron with chromium, nickel and other elements like molybdenum, carbon, manganese and nitrogen depending on specific grade. Stainless steel’s corrosion resistant property results from presence of chromium 10.5 % or […]

Welding Hazards,Safety Tips & Precautions

Welding Hazards and Safety Measures: Ensuring a Safe Working Environment Welding is a very important skill that affects nearly all aspects of our lives-from the cars we ride to the buildings we live in. However, welding also imposes common hazards, to prevent ourself from this hazard, safety is a must. Most of the common hazards

Pitting Resistance Equivalent Number (PREN)

Pitting resistance is a critical factor in selecting materials for piping systems, particularly in industries where corrosion can pose significant challenges. One of the essential metrics used to evaluate this resistance is the Pitting Resistance Equivalent Number (PREN). This article delves into the complexities of pitting corrosion, how PREN number are determined, and what they

How to Read a Vernier Scale

A Vernier scale is a precise measuring instrument used in various scientific and engineering fields. It enhances the accuracy of measurements by allowing the user to read values between the smallest graduations on the main scale. Understanding how to read a Vernier scale is essential for anyone working with precise measurements, whether in mechanical engineering,

Polarity in Welding: Reverse, Straight, and AC

Welding is a critical process in numerous industries, from construction to automotive manufacturing. One of the key factors in achieving a successful weld is understanding the concept of polarity. In welding, polarity refers to the direction of current flow, which can significantly impact the quality and characteristics of the weld. This article will explore the

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Ferrite testing, also known as a ferritescope test, is a fast and non-destructive inspection technique used to measure delta ferrite levels in austenitic stainless steel and duplex stainless steel materials. Maintaining the correct ferrite content is crucial for ensuring corrosion resistance, durability, and preventing cracks in the material. Exceeding the maximum allowable ferrite content can

METAL JOINING: BRAZING VS WELDING

There are several methods available for joining metals, including welding, brazing and soldering. What is the difference between welding and brazing? What is the difference between brazing and soldering? Let’s explore the distinctions plus comparative advantages as well as common applications. This discussion will deepen your understanding of metal joining and help you identify the

Hardness Testing: Definition, How It Works, Types, and Benefits

Hardness refers to the resistance of a material to deformation, particularly when subjected to various forms of external forces like compression, indentation, scratching, or abrasion. It’s an essential mechanical property that indicates the material’s ability to withstand such forces without undergoing permanent deformation or damage. Hardness is influenced by factors such as the material’s composition,

Guide to Magnetic Particle Inspection (MPI)

Magnetic Particle Inspection (MPI) stands as a crucial nondestructive testing process utilized to detect surface and shallow subsurface discontinuities in ferromagnetic materials. These materials encompass iron, nickel, cobalt, and certain alloys susceptible to magnetization. The method involves establishing a magnetic field within the test object, achieved through direct or indirect magnetization. Direct magnetization passes electric

Submerged Arc Welding (SAW)

Submerged arc welding (SAW) is a proficient welding technique that employs a continuous feed of tubular electrode to fuse two metals by generating heat through the interaction between the electrode and the metal. To shield the arc and molten zone from atmospheric contaminants, the welding process submerges them beneath a protective layer of granular flux.