July 2026

What Is Fitness-for-Service (FFS) Assessment? Fitness-for-Service (FFS) is a structured engineering methodology for evaluating in-service equipment and pipelines that have developed defects, damage, or degradation. FFS provides a technical basis for determining whether the equipment can continue to operate safely, requires repair, or must be taken out of service. FFS assessments are governed primarily by […]

Why Duplex Stainless Steel Welding Is Different Duplex stainless steels (DSS) contain a roughly 50/50 mixture of austenite and ferrite phases. However, this dual-phase microstructure is sensitive to thermal cycling during welding. Incorrect welding procedures can shift the phase balance, precipitate harmful intermetallic phases, and severely degrade both corrosion resistance and mechanical properties. The two

Why Titanium for Marine Applications? Titanium offers an unmatched combination of corrosion resistance, high strength-to-weight ratio, and long-term durability in marine environments. Unlike stainless steels, titanium is virtually immune to chloride-induced corrosion, including pitting, crevice corrosion, and stress corrosion cracking in seawater. Titanium Grades for Marine Service Grade 2 (CP Titanium / UNS R50400) Tensile

Why Thermal Expansion Matters in Steel Piping Systems When steel pipes carry hot fluids or operate in high-temperature environments, they expand. Carbon steel expands at approximately 12 × 10⁻⁶ m/m·°C. For a 100-meter run of carbon steel pipe heating from 20°C to 300°C, the thermal expansion is approximately 330 mm (13 inches). If not properly

Why Bimetallic Cladding for Nickel Alloys? Nickel alloys such as Inconel 625, Hastelloy C-276, Monel 400, and Alloy 200 offer outstanding corrosion resistance but come at a premium cost. Bimetallic cladding combines a thin layer of nickel alloy bonded to a carbon steel or low-alloy steel backing plate, delivering the corrosion resistance of the nickel

Understanding Sensitization in Stainless Steel Sensitization is the phenomenon where chromium carbides (Cr₂₃C₆) precipitate along the grain boundaries of austenitic stainless steels during exposure to temperatures in the range of 425–815°C (800–1,500°F). This precipitation depletes the adjacent grain boundary zone of chromium, reducing the local corrosion resistance and making the steel susceptible to intergranular corrosion

What Is Steel Pipe Hydrotesting? Hydrotesting (hydrostatic testing) is the standard method for verifying the structural integrity and leak tightness of steel pipes after manufacturing. The process involves filling the pipe with water and pressurizing it to a specified level above the design pressure, then monitoring for pressure decay, leaks, or deformation over a defined

Overview of Aluminum Forging Aluminum forging is a metalworking process in which aluminum alloy billets or blanks are heated and shaped using compressive forces through dies. The process produces components with superior mechanical properties compared to cast or machined parts, making it essential for aerospace, automotive, and industrial applications. Aluminum Alloys Commonly Forged 2xxx Series