November 4, 2025

The Difference Between Surface Roughness and Surface Finish

Understanding the Difference Between Surface Roughness and Surface Finish In the field of mechanical engineering and manufacturing, understanding surface characteristics is crucial for ensuring product performance, functionality, and longevity. Two terms that are often used interchangeably but have distinct meanings are surface roughness and surface finish. Let’s explore the differences between these two important concepts. What […]

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Duplex Stainless Steel pump

Duplex Stainless Steel Casting Material

ASTM A890/A890M Standard Specification for Corrosion-Resistant Iron-Chromium-Nickel-Molybdenum Duplex Stainless Steel (Austenitic/Ferritic) Steel Castings for General Applications   Table 1. Heat Treatment Requirements Grade Heat Treatment 1A, 1B, 1C Heat to a minimum temperature of 1900°F (1040°C), hold for sufficient time to uniformly heat the casting to the specified temperature, quench in water, or otherwise rapidly

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