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SA-240-304 Stainless Sheet: Gangsteel Stainless Solution in China

 

Introduction to SA-240-304 Stainless Sheets

SA-240-304 stainless sheets are austenitic stainless steel products renowned for their corrosion resistance, formability, and strength, making them essential in industries like chemical processing, food production, and construction. These sheets meet ASME SA-240 specifications, ensuring reliability for various applications. Gangsteel, a leading manufacturer and exporter in China, supplies high-quality SA-240-304 stainless sheets for global clients. As a specialist in ASME SA240 stainless steel plates, Gangsteel offers customized options to suit project needs. This article details the composition, properties, and uses of SA-240-304 stainless sheets.

 

What is SA-240-304 Stainless Sheet?

SA-240-304 is a standard austenitic stainless steel grade with a composition that includes 18–20% chromium and 8–10.5% nickel, providing excellent resistance to corrosion and oxidation. It is non-magnetic in annealed conditions and suitable for forming into sheets for structural or decorative purposes. Equivalent materials include UNS S30400, EN 1.4301, and JIS SUS304, enabling broad international application. Gangsteel’s SA240 Gr 304 sheets are produced to align with ASTM A240 stainless plate standards, ensuring consistent performance.

 

Chemical Composition of SA-240-304

The chemical composition of SA-240-304 is outlined in ASME SA-240 to ensure durability and resistance. The table below lists the key elements:

Element

SA-240-304 Composition

Purpose

Carbon (C)

≤ 0.08%

Permits strength while supporting weldability.

Chromium (Cr)

18.0–20.0%

Delivers core corrosion and oxidation resistance.

Nickel (Ni)

8.0–10.5%

Enhances ductility and acid resistance.

Manganese (Mn)

≤ 2.0%

Improves strength and workability.

Silicon (Si)

≤ 0.75%

Aids in deoxidation and scaling resistance.

Phosphorus (P)

≤ 0.045%

Restricts impurities to preserve integrity.

Sulfur (S)

≤ 0.03%

Minimizes brittleness for improved machining.

Nitrogen (N)

≤ 0.10%

Boosts pitting resistance and strength.

Gangsteel adheres to these specifications for SA-240-304 sheets, compatible with JIS G 4304 stainless steel plate standards.

 

Mechanical Properties of SA-240-304

SA-240-304 sheets provide reliable mechanical properties for fabrication and use. The table below summarizes these as per ASME SA-240:

Property

SA-240-304 Value

Description

Tensile Strength (min)

515 MPa (75 ksi)

Highest stress the sheet can endure before failure.

Yield Strength (min)

205 MPa (30 ksi)

Stress where deformation starts (0.2% offset).

Elongation (min)

40% (in 2 inches)

Ductility indicator for shaping without breaking.

Hardness (max)

201 HBW (Brinell) or 92 HRB (Rockwell B)

Measure of wear resistance.

Density

7.93 g/cm³ (7930 kg/m³)

Used for accurate weight assessments in designs.

These attributes make SA-240-304 sheets preferable over options like SA240 Gr 201, with Gangsteel offering SA240 Gr 304L for weld-focused needs.

 

Equivalent Materials for SA-240-304

SA-240-304 has equivalents across standards, supporting global use. The table below shows common equivalents:

Standard

Equivalent Grade

Description

UNS

S30400

Universal identifier for material sourcing.

EN/DIN

1.4301

European grade with matching properties.

JIS

SUS304

Japanese equivalent for regional manufacturing.

ISO

X5CrNi18-10

International standard for cross-border applications.

GB (China)

0Cr18Ni9

Chinese grade for local production.

Gangsteel’s SA-240-304 sheets integrate with these equivalents, aligning with ASTM A 959 stainless steel plates.

 

Applications of SA-240-304 Stainless Sheets

SA-240-304 sheets suit multiple industries due to their resistance and formability. The table below details applications:

Industry

Application

Related Products

Chemical Processing

Liners, tanks, and components for mild corrosives.

SA240 Gr 317L, SA240 Gr 316L

Food Production

Surfaces for equipment like tables and containers.

SA240 Gr 301

Construction

Panels, supports, and decorative elements.

SA240 Gr 321

Pharmaceutical

Cleanroom components and storage.

SA240 Gr 316

Gangsteel’s ASME SA 213/SA 213M stainless pipes work alongside SA-240-304 sheets for system integration.

 

Weight Calculation for SA-240-304 Stainless Sheets

The density of SA-240-304 is 7.93 g/cm³ (7930 kg/m³). To determine sheet weight:

Weight (kg) = Density (kg/m³) × Volume (m³)
Volume (m³) = Length (m) × Width (m) × Thickness (m)

Example:

  • Sheet: 2 meters long, 1 meter wide, 4 mm (0.004 meters) thick.
  • Volume = 2 × 1 × 0.004 = 0.008 m³.
  • Weight = 7930 kg/m³ × 0.008 m³ = 63.4 kg.

This supports planning for SA240 Gr 304 or SA240 Gr 310S.

 

Comparing SA-240-304 with Other Grades

SA-240-304 balances cost and performance. The table below compares it with Gangsteel grades:

Grade

Key Features

Best Use Case

SA240 Gr 304

Corrosion-resistant, formable.

General fabrication, food equipment.

SA240 Gr 304L

Low carbon, superior weldability.

Welded tanks, chemical lines.

SA240 Gr 316

Molybdenum-added for chloride resistance.

Marine, harsh environments.

SA240 Gr 201

Reduced cost, lower nickel.

Indoor, mild conditions.

Gangsteel’s nickel alloy steel plates offer alternatives for specialized uses.

 

Why Choose Gangsteel’s SA-240-304 Stainless Sheets?

Gangsteel, a key stainless solution provider in China, excels in SA-240-304 stainless sheets with:

  • Quality Assurance: Compliant with ASME SA240 and ASTM A240 standards.
  • Customization: Various sizes and finishes to meet specific requirements.
  • Export Expertise: Serving international markets with efficient delivery.
  • Range of Options: Including SA240 Gr 347 for high-temperature applications and SA240 Gr 201L for cost savings.

 

Conclusion

SA-240-304 stainless sheets offer corrosion resistance and versatility for chemical, food, and construction sectors. With defined composition and properties, they suit numerous needs, supported by equivalents like EN 1.4301. Gangsteel’s solutions in China, including SA240 Gr 316L and SA240 Gr 904L, provide reliable options. Contact Gangsteel for UNS stainless steel plates to address your requirements.

 

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