What information is typically absent from an engineering drawing's sheet frame?

The correct answer is that material types are typically absent from an engineering drawing's sheet frame. Engineering drawings primarily focus on conveying the geometric dimensions, tolerances, and assembly instructions for parts.

While it is common for the border dimensions to be included to provide context and layout, and design specifications are often detailed within the body of the drawing, basic contact information may also be included to identify the organization or individuals involved in the design process. However, the specific types of materials to be used for the parts are generally not indicated in the sheet frame; instead, they are usually specified in accompanying documents, specifications, or notes in the drawing.

This distinction showcases the primary purpose of the drawing sheet frame, which is to organize and present critical information about the drawing rather than detail the materials used in the design.