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SA240 Gr 304 stainless steel plates are austenitic stainless steel products valued for their corrosion resistance, strength, and versatility in industries like chemical processing, food production, and construction. These plates comply with ASME SA240 standards, making them suitable for pressure vessels and general use.
Gangsteel, a prominent manufacturer and exporter in China, supplies SA240 Gr 304 plates in various dimensions. As a specialist in ASME SA240 stainless steel plates, Gangsteel offers tailored solutions for international clients. This article covers the composition, properties, and applications of SA240 Gr 304 stainless steel plates.
SA240 Gr 304 is a chromium-nickel austenitic stainless steel with 18–20% chromium and 8–10.5% nickel, providing reliable corrosion resistance and mechanical performance. It is non-magnetic when annealed and can be strengthened through cold working. Equivalent materials include UNS S30400, EN 1.4301, and JIS SUS304, supporting worldwide use. Gangsteel’s SA240 Gr 304 plates are manufactured under ASTM A240 stainless plate specifications, ideal for fabrication and structural purposes.
The chemical composition of SA240 Gr 304 is defined by ASME SA240 to ensure corrosion resistance and durability. The table below lists the elements:
|
Element |
SA240 Gr 304 Composition |
Purpose |
|---|---|---|
|
Carbon (C) |
≤ 0.08% |
Provides strength while allowing weldability. |
|
Chromium (Cr) |
18.0–20.0% |
Offers main corrosion and oxidation resistance. |
|
Nickel (Ni) |
8.0–10.5% |
Improves ductility and acid resistance. |
|
Manganese (Mn) |
≤ 2.0% |
Enhances hot working and strength. |
|
Silicon (Si) |
≤ 0.75% |
Supports deoxidation and scaling resistance. |
|
Phosphorus (P) |
≤ 0.045% |
Restricts impurities to preserve quality. |
|
Sulfur (S) |
≤ 0.03% |
Reduces brittleness for better machining. |
|
Nitrogen (N) |
≤ 0.10% |
Increases pitting resistance and strength. |
Gangsteel follows these compositions for SA240 Gr 304 plates, compatible with JIS G 4304 stainless steel plate standards.
SA240 Gr 304 plates exhibit mechanical properties suitable for various uses. The table below summarizes these as per ASME SA240:
|
Property |
SA240 Gr 304 Value |
Description |
|---|---|---|
|
Tensile Strength (min) |
515 MPa (75 ksi) |
Highest stress before failure. |
|
Yield Strength (min) |
205 MPa (30 ksi) |
Stress at deformation start (0.2% offset). |
|
Elongation (min) |
40% (in 2 inches) |
Ductility measure for forming. |
|
Hardness (max) |
201 HBW (Brinell) or 92 HRB (Rockwell B) |
Resistance to deformation. |
|
Density |
7.93 g/cm³ (7930 kg/m³) |
Used for weight assessments. |
These attributes make SA240 Gr 304 plates preferable over SA240 Gr 201, with Gangsteel offering SA240 Gr 304L for weld applications.
SA240 Gr 304 has equivalents in various national standards for flexible sourcing. The table below lists common ones:
|
Standard |
Equivalent Grade |
Description |
|---|---|---|
|
UNS (USA) |
S30400 |
Universal identifier for global sourcing. |
|
EN/DIN (Europe) |
1.4301 / X5CrNi18-10 |
European grade with similar properties. |
|
JIS (Japan) |
SUS304 |
Japanese equivalent for regional manufacturing. |
|
ISO |
X5CrNi18-10 |
International standard for cross-border use. |
|
GB (China) |
0Cr18Ni9 |
Chinese grade for domestic production. |
|
BS (UK) |
304S31 |
British standard equivalent for UK applications. |
|
AFNOR (France) |
Z7CN18-09 |
French grade with matching characteristics. |
|
SS (Sweden) |
2332 |
Swedish equivalent for Scandinavian projects. |
Gangsteel’s SA240 Gr 304 plates work with these equivalents, aligning with ASTM A 959 stainless steel plates.
SA240 Gr 304 plates are used in numerous sectors due to their resistance and strength. The table below highlights applications:
|
Industry |
Application |
Related Products |
|---|---|---|
|
Chemical Processing |
Tanks, reactors, and liners for corrosives. |
|
|
Food Production |
Equipment surfaces and storage. |
|
|
Construction |
Structural components and panels. |
|
|
Pharmaceutical |
Vessels and cleanroom elements. |
Gangsteel’s ASME SA 213/SA 213M stainless pipes integrate with SA240 Gr 304 plates for systems.
SA240 304 vs 316: SA240 304 provides general corrosion resistance and is cost-effective for mild environments, while SA240 316 includes molybdenum for better chloride resistance, suited for marine or harsh chemical applications.
SA240 304 vs 304L: SA240 304 offers higher strength, but SA240 304L, with lower carbon, provides superior weldability and resistance to intergranular corrosion.
SA240 304 vs 201: SA240 304 has better corrosion resistance due to higher nickel, making it ideal for outdoor use, whereas SA240 201 is more affordable but less durable in corrosive conditions.
SA240 304 vs 430: SA240 304 is austenitic and non-magnetic with excellent formability, while SA240 430 is ferritic, magnetic, and offers good resistance in less demanding settings but lower overall corrosion performance.
Gangsteel’s nickel alloy steel plates offer alternatives for specialized needs.
Gangsteel, a stainless solution provider in China, offers SA240 Gr 304 stainless steel plates with:
SA240 Gr 304 stainless steel plates provide corrosion resistance and strength for chemical, food, and construction applications. With defined composition and properties, they meet diverse requirements, supported by equivalents like EN 1.4301. Gangsteel’s solutions in China, including SA240 Gr 316L and SA240 Gr 904L, ensure quality. Contact Gangsteel for UNS stainless steel plates to address your needs.
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