ASTM A240 Grade 304 Hot Rolled Stainless Steel Sheet

The ASTM A240 Grade 304 Hot Rolled Stainless Steel Sheet is a practical choice for industrial applications that require good corrosion resistance, strength, and durability. Grade 304 is one of the most commonly used austenitic stainless steel grades and is widely used in equipment fabrication and general industrial manufacturing.
This sheet is available in 3mm thickness × 1500mm width × 3000mm length with a No.1 hot rolled finish. The No.1 surface has a typical industrial appearance and is suitable for applications where surface appearance is less important than material performance and cost.

The No.1 finish is obtained through hot rolling, heat treatment, and descaling. It is commonly used for equipment, tanks, machinery, and other fabricated components.

We can supply the sheet to ASTM A240 requirements, with cutting, custom dimensions, inspection, and material certification available according to the customer's project requirements.
 

Parameter	Specification
Product Name	304 Hot Rolled Stainless Steel Sheet
Standard	ASTM A240
Grade	304
UNS	S30400
Material Type	Austenitic Stainless Steel
Manufacturing Process	Hot Rolled
Surface Finish	No.1
Thickness	3 mm
Width	1500 mm
Length	3000 mm
Dimensions	3 × 1500 × 3000 mm
Edge	Mill Edge / Cut Edge
Heat Treatment	Solution Annealed / As Required
Surface Condition	Hot Rolled & Descaled
Application	Industrial Equipment
Customization	Thickness, Width, Length & Cutting Available
Inspection	Chemical, Mechanical & Dimensional Inspection
Certification	MTC / EN 10204 3.1 Available
Packaging	Export Standard Seaworthy Packaging

 

 

ASTM A240 Grade 304 stainless steel is an austenitic stainless steel primarily alloyed with chromium and nickel. The typical chemical composition requirements are shown below.

Element	ASTM A240 Grade 304 (wt. %)
Carbon (C)	≤ 0.07
Silicon (Si)	≤ 1.00
Manganese (Mn)	≤ 2.00
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.030
Chromium (Cr)	17.5–19.5
Nickel (Ni)	8.0–10.5
Nitrogen (N)	≤ 0.10
Iron (Fe)	Balance

Grade 304 stainless steel provides a useful combination of strength and ductility for industrial fabrication.
 

Mechanical Property	ASTM A240 Grade 304 Requirement
Tensile Strength	≥ 515 MPa
Yield Strength (0.2% Offset)	≥ 205 MPa
Elongation in 50 mm	≥ 40%
Hardness, Brinell	≤ 201 HB
Hardness, Rockwell B	≤ 92 HRB
Hardness, Rockwell	≤ 210 HV

The No.1 finish is typically associated with stainless steel products manufactured by hot rolling, followed by heat treatment and descaling.

Compared with cold-rolled 2B or BA surfaces, No.1 finish generally has a rougher and more industrial appearance.

It is commonly selected for:

Industrial equipment

Structural components

Tanks

Machinery

Process equipment

Heat-transfer equipment

Fabricated components

For applications requiring a decorative or highly reflective surface, a cold-rolled finish such as 2B, BA, brushed, or mirror finish may be more appropriate.
 

The ASTM A240 Grade 304 Hot Rolled Stainless Steel Sheet can be used in a wide range of industrial equipment and fabrication applications, including:

Industrial machinery

Process equipment

Chemical processing equipment

Storage tanks

Pressure vessel components

Heat exchangers

Food processing equipment

Pharmaceutical equipment

Water treatment equipment

Piping and fabrication components

Industrial platforms and structures

General stainless steel fabrication

For highly aggressive chloride environments or applications requiring enhanced resistance to pitting and crevice corrosion, other stainless steel grades such as 316/316L or duplex stainless steels may be considered.
 

The typical production process for hot rolled 304 stainless steel sheet includes:

Raw Material Preparation → Hot Rolling → Heat Treatment → Descaling → Cutting → Surface Inspection → Dimensional Inspection → Testing → Packaging

Hot Rolling

The stainless steel slab is heated to an appropriate temperature and passed through rolling mills to achieve the required thickness and dimensions.

Heat Treatment

The material may undergo solution annealing or other heat treatment according to the applicable specification and production requirements.

Descaling

Oxide scale generated during hot rolling and heat treatment is removed to obtain the required No.1 surface condition.

Cutting & Inspection

The sheet is cut to the specified dimensions, followed by dimensional, surface, chemical, and mechanical inspections as required.
 

What is ASTM A240 Grade 304 stainless steel sheet?

ASTM A240 Grade 304 stainless steel sheet is an austenitic stainless steel product manufactured to ASTM A240 requirements. Grade 304 contains chromium and nickel as its primary alloying elements and is widely used for general industrial and fabricated applications.

What is No.1 finish stainless steel?

No.1 is a typical hot rolled stainless steel surface finish produced after hot rolling, heat treatment, and descaling. It has a relatively rough industrial appearance compared with 2B or BA finishes.

What is the size of this 304 stainless steel sheet?

The specified size is:

3mm × 1500mm × 3000mm

where 3mm is the thickness, 1500mm is the width, and 3000mm is the length.

Is 304 stainless steel suitable for industrial equipment?

Yes. Grade 304 offers good corrosion resistance, strength, weldability, and formability, making it suitable for many industrial equipment and fabrication applications.

Can 304 stainless steel be welded?

Yes. Grade 304 has good weldability and is widely used in welded equipment and structures. Appropriate welding procedures and post-weld cleaning should be applied.

Is 304 stainless steel suitable for chemical equipment?

304 stainless steel can be used in many chemical processing applications, but suitability depends on the specific chemical medium, concentration, temperature, and operating conditions. For more aggressive chloride-containing environments, 316/316L or other corrosion-resistant grades may be more appropriate.

Can you provide an MTC?

Yes. Material Test Certificates can be supplied according to order requirements. EN 10204 3.1 certification and third-party inspection can also be discussed for qualified projects.

Can you supply custom sizes?

Yes. Custom thicknesses, widths, lengths, cutting dimensions, surface conditions, and packaging requirements can be discussed according to the project specification.

Hot Tags: astm a240 grade 304 hot rolled stainless steel sheet, China astm a240 grade 304 hot rolled stainless steel sheet manufacturers, suppliers, factory, Corrosion resistant stainless steel plate, Hairline Finish Stainless Steel Sheet, Industrial Stainless Steel Seamless Tube, Marine Stainless Steel Sheet, Stainless Steel Bar, Superalloy Plate