SS 309 angle is a structural shape made from stainless steel grade 309, a heat-resistant austenitic stainless steel alloy containing chromium and nickel. SS 309 angles are L-shaped structural members commonly used in construction, manufacturing, and engineering applications requiring high-temperature and corrosion resistance.

The common types of SS 309 angles typically include equal leg angles and unequal leg angles. Equal leg angles have both legs of the same length and form a 90-degree angle, making them suitable for applications where symmetrical loading or support is required. Unequal leg angles allow one leg to be longer than the other, allowing for versatile positioning and structural configurations.

The important grade for SS 309 Angle is ASTM A276. SS 309 Angle is generally produced according to ASTM A276 specifications, which outline the requirements for stainless steel bars and shapes. Within the ASTM A276 standard, SS 309 Angle must meet specific chemical composition, mechanical properties, and dimensional tolerances to ensure its suitability for structural and engineering applications.