304 Stainless Steel Sheet

We specialize in the supply of a full range of 304 stainless steel plates and support customized relays, accurately matching your application needs based on core properties.

By Manufacturing Process:Cold rolled 304 stainless steel plate,Hot rolled 304 stainless steel plate

By Connection Type Surface treatment: 304 Mirror SS Sheet(8k),304 Brushed Stainless Steel Sheet(Long /Short Grain), 304 Embossed Stainless Steel Sheet,304 Sandblasted Stainless Steel Sheet

Standard Sizes of 304 Stainless Steel Sheet

Item	Specification / Description
Material	304 Stainless Steel
Standard	ASTM A240 / JIS G4305
Thickness Range	0.3 – 20 mm (Common: 0.3mm, 1mm, 2mm, 3mm, 5mm, 1/2 inch)
Width Range	1000 – 2000 mm (Common: 1000, 1219, 1500)
Length Range	2000 – 6000 mm (Customizable)  Common sizes：4x8ft, 5x10ft
Surface Finish	2B, BA, NO.4, NO.8, HL (Hairline), Mirror, Sandblasted, Etched, Embossed
Sheet Type	Cold Rolled, Hot Rolled

 

304 Stainless Steel Sheet

304 stainless steel is an austenitic stainless steel composed of 18–20% chromium (Cr) and 8–10.5% nickel (Ni), with small amounts of carbon (≤0.08%), manganese (≤2%), and silicon (≤1%).  This composition provides excellent resistance to corrosion in air, fresh water, and many mild chemical solutions, as well as good tensile strength (520–750 MPa) and yield strength (205–310 MPa).  It maintains ductility and formability across a wide temperature range.

Tip: Avoid prolonged exposure to chloride-rich environments (e.g., saltwater) to prevent localized corrosion.

304 Stainless Steel Sheet — Chemical Composition (%)

C	Cr	Ni	Mn	Si	P	S	Fe
≤0.08	18.0–20.0	8.0–10.5	≤2.0	≤1.0	≤0.045	≤0.03	Balance

 

304 Stainless Steel Sheet — Mechanical Properties

Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)	Hardness (HRB)	Density (g/cm³)	Melting Point (°C)
520–750	≥205	≥40	≤92	7.93	1400–1450

 

304 Stainless Steel Sheet — Surface Finish Options

2B	BA	No.4	No.8	HL (Hairline)	Sandblasted	Etched	Embossed
Smooth, matte, widely used	Bright annealed, mirror-like	Brushed, fine lines	Mirror polished, high reflectivity	Continuous hairline pattern	Rough matte finish	Patterned by chemical treatment	Raised decorative pattern

 

Heat Treatment of 304 Stainless Steel

1. Annealing (Solution Treatment)

Temperature range: 1010–1120°C

Process: Rapid cooling in water or air after heating

Purpose: Restores maximum corrosion resistance and ductility

2. Stress Relieving

Applied after heavy machining or forming

Helps minimize residual stresses and distortion

3. Hardening

304 stainless steel cannot be hardened by heat treatment

Strength improvement is achieved only through cold working

4. Performance Balance

Proper heat treatment restores the chromium carbide balance, preventing sensitization and intergranular corrosion.

Ensures stable performance during welding, pressure vessel operation, and high-temperature service.

Features of 304 Stainless Steel Sheet

Corrosion Resistance: Excellent resistance to a wide range of atmospheric environments and many corrosive media, particularly effective against oxidation and mild chemical exposure.

Mechanical Properties: Provides a balance of high tensile strength and good ductility, allowing for reliable forming, bending, and deep drawing.

Weldability: Suitable for most welding techniques without requiring pre- or post-weld heat treatment, minimizing the risk of sensitization when properly handled.

Temperature Tolerance: Maintains structural stability up to ~870°C (1600°F) in intermittent service and ~925°C (1700°F) in continuous service.

Applications of 304 Stainless Steel Sheet

Kitchen Equipment : countertops, sinks, and work tables;  recommended: 1/2 inch (12.7 mm) sheet.

Decorative Panels : wall cladding, ceiling panels, furniture surfaces;  recommended: thin sheets, 0.5–1.0 mm.

Construction and Cladding : building facades, partitions, exterior panels;  recommended: large sheets, 4x8 ft (1219x2438 mm) or 5x10 ft (1500x3000 mm).

Chemical and Food Industry : tanks, piping, processing equipment;  recommended: 1–3 mm thickness.

Automotive and Machinery Parts : structural components requiring strength and corrosion resistance;  recommended: 2–6 mm thickness.

 

304 Stainless Steel Sheet — FAQ

Q1: What is 304 stainless steel sheet made of?

A1: 304 stainless steel sheet is an austenitic stainless steel containing 18–20% chromium (Cr) and 8–10.5% nickel (Ni), with small amounts of carbon, manganese, and silicon.  This composition ensures excellent corrosion resistance, ductility, and mechanical stability for 304 stainless steel sheets used in kitchen counters, decorative wall panels, and industrial 304 sheet applications.

Q2: What thicknesses are available for 304 stainless steel sheets?

A2: 304 stainless steel sheets are available in thicknesses ranging from 0.3 mm to 20 mm.  Common long-tail options include 0.5 mm thin 304 stainless steel sheet for decorative panels, 1 mm 304 sheet for kitchen equipment, and 2–4 mm 304 stainless steel sheet for construction cladding and industrial use.

Q3: What sizes can I order for 304 stainless steel sheets?

A3: Standard widths range from 1000 mm to 1500 mm, and lengths from 2000 mm to 6000 mm.  Popular long-tail sizes include 4x8 ft (1219x2438 mm) 304 stainless steel sheet for facades, 5x10 ft (1500x3000 mm) large 304 sheet for partitions, and custom large-size 304 stainless steel sheets for industrial applications.

Q4: What surface finishes are available for 304 stainless steel sheets?

A4: Available surface finishes include 2B smooth matte 304 sheet, BA bright annealed 304 stainless steel sheet, No.4 brushed finish, No.8 mirror finish, HL (hairline), sandblasted, etched, and embossed 304 sheets.  These finishes are suitable for applications like kitchen counters, decorative panels, and industrial equipment.

Q5: Can 304 stainless steel sheets be cut, bent, or welded?

A5: Yes. 304 stainless steel sheets have excellent formability and can be cut, bent, deep drawn, or welded, including 1/2 inch 304 stainless steel sheet for kitchen counters and thin 304 sheets for decorative panels, without losing corrosion resistance.  Cold working can further increase strength where needed.

Q6: How should 304 stainless steel sheets be maintained?

A6: Clean 304 stainless steel sheets regularly using mild detergent and water.  Avoid prolonged exposure to chlorides or strong acids, especially for thin 304 stainless steel panels and kitchen equipment sheets, to maintain optimal corrosion resistance.

Q7: What are typical applications of 304 stainless steel sheets?

A7: Common applications include kitchen equipment (1/2 inch 304 sheet for countertops and sinks), decorative panels (thin 304 sheet for walls, ceilings, and furniture surfaces), construction and cladding (large 4x8 ft or 5x10 ft 304 sheet for facades and partitions), chemical and food processing industry (1–3 mm 304 sheet for tanks and piping), and machinery components (2–6 mm 304 stainless steel sheet for structural parts).

Q8: Can 304 stainless steel sheets be customized?

A8: Yes.  Suppliers can provide custom thickness, width, length, and surface finish, such as thin 0.5–1 mm 304 sheet for decorative panels or large 4x8 ft 304 stainless steel sheet for construction cladding, to meet project or industrial requirements.