Stainless Steel Alloys


Alloy 304
CHARACTERISTICS:
Non-Magnetic chromium nickel (Most common alloy)

APPLICATIONS:
Hospitals, health care, food processing plants, some chemical plants, swimming pool areas, most exterior applications
EXTERIOR DOORS
Face sheets, 16 GA 304 stainless steel. All door components shall be stainless steel. Core: vertical 22 GA stiffeners laminated to door skin. Vertical Edges: Hairline seam reinforced with continuous 16 GA stainless steel channel. Lock-seam type edge not acceptable. Top and bottom edges shall have continuous 16 GA channels, spot welded to both face sheets. Top edge shall be sealed watertight.
INTERIOR DOORS
Door skin, 16 GA 304 stainless steel. Core: Kraft honeycomb. Vertical Edges: Open seam. Top and bottom edges shall have continuous 16 GA channels, spot welded to both face sheets.


Alloy 316
CHARACTERISTICS:
Higher Percentage of chromium-nickel than Alloy 304

APPLICATIONS:
Exterior, high-humidity, salt air environments. Highly corrosive environments.
EXTERIOR DOORS
SALT ENVIRONMENT / PHARMACEUTICAL GRADE
Door skin, 16 GA 316 stainless steel. All door components shall be stainless steel. Core: vertical 22 GA stiffeners laminated to door skin with voids between stiffeners filled with polystyrene. Vertical Edges: Hairline seam reinforced with continuous 16 GA stainless steel channel. Lock-seam type edge not acceptable. Top and bottom edges shall have continuous 16 GA channels, spot welded to both face sheets. Top edge shall be sealed watertight.


Alloy 430
CHARACTERISTICS:
Magnetic

APPLICATIONS:
Interior, non-corrosive environments, where Alloy 304 will not meet fire rating requirements.
INTERIOR DOORS, LARGE FIRE RATED OPENINGS
Door skin, 16 GA 430 stainless steel. Core: Kraft honeycomb. Vertical Edges: Open seam. Top and bottom edges shall have continuous 16 GA channels, spot welded to both face sheets.