S31635

S31635 is a grade of austenitic stainless steel characterized by its high corrosion resistance, strength, and durability. It is also known by its standardized designation as X2CrNiMo18-14-3, where the numbers and letters denote its composition and properties. S31635 contains approximately 16-18% chromium, 10-14% nickel, and 2-3% molybdenum. The addition of molybdenum significantly enhances its resistance to chlorides and other aggressive environments, making it well-suited for chemical processing, marine, and industrial applications.

This stainless steel offers excellent resistance to pitting, crevice corrosion, and general corrosion in harsh environments. Its mechanical properties include good tensile strength, high toughness, and notable formability. Due to its corrosion-resistant qualities, S31635 is often used in fabrication of equipment such as tanks, valves, and piping systems that operate under demanding conditions.

In terms of standards, S31635 is recognized according to ASTM A240/A240M and EN 1.4404 specifications, ensuring a consistent quality and composition. Its heat resistance allows for use in temperatures up to approximately 870°C (1598°F), although specific conditions may vary.

The alloy’s high corrosion resistance, combined with its strength and structural integrity, makes it popular across diverse industries, including chemical, pharmaceutical, food processing, and seawater applications. Its stability in both oxidizing and mildly reducing environments contributes to its widespread adoption.

As a versatile stainless steel grade, S31635 exemplifies the balance between mechanical performance and corrosion resistance, enabling its use in critical applications where longevity and safety are paramount.