304 Stainless Steel Sheet #4 Brushed Finish 0.048 in 12 in x 48 in

In this review of the 304 Stainless Steel Sheet with a #4 brushed finish, the bottom line is simple: this sheet is a reliable, general-purpose stainless option for fabricators and hobbyists who need strength and corrosion resistance outside of marine environments. The reviewer found the 18 gauge, 0.048 in thickness to be a practical balance between rigidity and ease of handling, and the brushed #4 finish gives a clean, work-ready appearance. It is most compelling for projects in food service, architectural trim, and light structural work where 304 stainless is appropriate.

Key Features

• 304 alloy: Provides broad corrosion resistance and good high-temperature stability for most interior and industrial uses.
• 0.048 in thickness (18 gauge): Gives a sturdy feel that resists flex for trim and panel work while still being workable with standard shop tools.
• #4 brushed finish: Delivers a consistent directional grain that looks good for visible architectural surfaces and eases fingerprint concerns.
• Annealed: The softened condition improves formability and reduces the risk of cracking during bending and shaping.
• Ready dimensions: The 12 in by 48 in size fits common project needs and minimizes waste for small runs and prototyping.
• Industry standards: Conforms to ASTM-A240 and related specifications so it is suitable for regulated environments when those standards are required.

Who It's For

This sheet is aimed at metalworkers, fabricators, contractors, and DIYers who need a dependable, mid-thickness stainless option for interior architectural trim, food service equipment, pressure containers used in compatible applications, and general-purpose industrial work. The combination of 304 stainless and a #4 finish makes it especially fitting where appearance and corrosion resistance both matter.

Those working in marine or highly chlorinated environments should look elsewhere for 316 stainless. Buyers needing extreme scratch resistance or highly bendable ultra-thin sheet may prefer a different gauge or finish; this 18 gauge sheet prioritizes a balance of strength and formability.

Pros & Cons

Pros

• Good all-round corrosion resistance and high temperature performance suitable for many industrial uses.
• Brushed #4 finish looks professional and reduces visible fingerprints on trim and panels.
• Annealed condition improves workability for bending and forming operations.
• Size and thickness are convenient for small projects and reduce need for cutting lots of excess material.

Cons

• Not ideal for marine use; 316 is preferable where saltwater corrosion is a concern.
• Some customers report issues with bendability in tight-radius forming and occasional surface scratches or bent corners during handling.

Specifications

Alloy	304 (304L compatible)
Material	Stainless Steel
Finish	#4 brushed
Thickness	0.048 in (18 gauge)
Item Width	12 in
Item Length	48 in
Condition	Annealed

Our Verdict

This 304 stainless sheet is a practical, good-value choice for fabricators and makers who need a durable, attractive panel that meets ASTM standards for many industrial and architectural applications. It is best for interior and non-marine projects where the #4 brushed finish and 18 gauge thickness deliver a useful balance of appearance, rigidity, and workability.

Frequently Asked Questions

Is this sheet suitable for outdoor architectural trim?
Yes, for most exterior environments away from saltwater exposure the 304 alloy and #4 finish will perform well with routine maintenance.

Can this sheet be bent or formed?
Yes, it is annealed and workable for typical bending and light forming, but very tight radii may risk corner deformation.

Should I choose 304 or 316 for my project?
Choose 304 for general use and food service; choose 316 if you expect prolonged marine or chloride exposure.