Baja Tahan Karat Austenitik

Composition and Structure

Austenitic stainless steel contains at least 16% kromium dan 6% nikel. Misalnya, 304 baja tahan karat, juga dikenal sebagai 18/8 baja tahan karat, consists of 18% kromium dan 8% nikel. The presence of nickel enhances low-temperature performance, preventing brittleness.

This type of stainless steel is classified into the 200 seri (containing chromium, nikel, dan mangan) and the 300 seri (mengandung kromium dan nikel). Austenitic stainless steel can be strengthened through cold working but not heat treatment.

Properti

Ketahanan Korosi: Excellent in various environments.
Sifat mampu bentuk: Highly adaptable for different applications.
Daya tahan: Maintains structural integrity even in extreme conditions.

Common Types and Applications

304 Baja Tahan Karat

Resists ordinary rust in construction.
Suitable for food processing due to resistance to acids, klorida, dan suhu tinggi.
Withstands exposure to organic chemicals, dyes, and inorganic chemicals.

304L Baja Tahan Karat (Karbon Rendah)

Offers superior resistance to nitric and sulfuric acid at moderate temperatures.
Banyak digunakan dalam penyimpanan gas cair, peralatan Rumah Tangga, perlengkapan dapur, dan instrumen rumah sakit.

316 Baja Tahan Karat

Mengandung lebih banyak nikel dan 2-3% molibdenum dibandingkan dengan 304.
Memberikan ketahanan yang lebih baik, terutama di lingkungan kaya klorida yang menyebabkan korosi lubang.