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SA240 304L corrosion material plates are low-carbon stainless steel plates renowned for their superior corrosion resistance, making them ideal for environments exposed to chemicals, moisture, and chlorides. Compliant with ASME SA240 standards, these plates offer durability and weldability for industries like chemical processing, marine, and food production. Gangsteel, a leading manufacturer and exporter in China, provides high-quality SA240 304L plates as part of its ASME SA240 stainless steel plates range. This article explores the corrosion-resistant features, composition, and applications of SA240 304L corrosion material plates.
SA240 304L is a low-carbon variant of austenitic stainless steel 304, with carbon content limited to 0.03% to enhance corrosion resistance in welded areas by preventing carbide precipitation. It features 18–20% chromium and 8–12% nickel, forming a passive oxide layer that protects against corrosion. Equivalent materials include UNS S30403, EN 1.4307, and JIS SUS304L, ensuring global usability. Gangsteel’s SA240 Gr 304L plates are manufactured under ASTM A240 stainless plate standards, focusing on corrosion performance.
The chemical composition of SA240 304L is designed to maximize corrosion resistance. The table below details the elements as per ASME SA240:
|
Element |
SA240 304L Composition |
Purpose |
|---|---|---|
|
Carbon (C) |
≤ 0.03% |
Low level prevents intergranular corrosion in welded zones. |
|
Chromium (Cr) |
18.0–20.0% |
Forms protective oxide layer for corrosion resistance. |
|
Nickel (Ni) |
8.0–12.0% |
Enhances resistance to reducing acids and stabilizes structure. |
|
Manganese (Mn) |
≤ 2.0% |
Supports strength without compromising corrosion properties. |
|
Silicon (Si) |
≤ 0.75% |
Improves resistance to oxidizing environments. |
|
Phosphorus (P) |
≤ 0.045% |
Limits impurities to maintain corrosion integrity. |
|
Sulfur (S) |
≤ 0.03% |
Reduces pitting corrosion risks. |
|
Nitrogen (N) |
≤ 0.10% |
Boosts pitting and crevice corrosion resistance. |
Gangsteel ensures compliance for SA240 304L plates, aligning with JIS G 4304 stainless steel plate standards.
SA240 304L plates maintain mechanical integrity alongside corrosion resistance. The table below summarizes properties as per ASME SA240:
|
Property |
SA240 304L Value |
Description |
|---|---|---|
|
Tensile Strength (min) |
485 MPa (70 ksi) |
Stress endurance before breaking, supporting corrosive environments. |
|
Yield Strength (min) |
170 MPa (25 ksi) |
Deformation start point (0.2% offset), ensuring structural stability. |
|
Elongation (min) |
40% (in 2 inches) |
Ductility for forming in corrosion-prone applications. |
|
Hardness (max) |
201 HBW (Brinell) or 92 HRB (Rockwell B) |
Wear resistance in harsh conditions. |
|
Density |
7.93 g/cm³ (7930 kg/m³) |
Aids in weight calculations for design. |
These properties make SA240 304L suitable for corrosive settings, outperforming SA240 Gr 201.
SA240 304L has equivalents that offer similar corrosion resistance. The table below lists them:
|
Standard |
Equivalent Grade |
Description |
|---|---|---|
|
UNS |
S30403 |
Global identifier for low-carbon variant. |
|
EN/DIN |
1.4307 |
European equivalent with enhanced corrosion focus. |
|
JIS |
SUS304L |
Japanese grade for corrosion-resistant applications. |
|
ISO |
X2CrNi18-9 |
International standard for similar properties. |
|
GB (China) |
00Cr19Ni10 |
Chinese equivalent for domestic corrosion needs. |
Gangsteel’s SA240 304L plates integrate with these, supporting ASTM A 959 stainless steel plates.
SA240 304L plates excel in corrosive environments. The table below outlines uses:
|
Industry |
Application |
Related Products |
|---|---|---|
|
Chemical Processing |
Tanks and piping resistant to acids and corrosives. |
|
|
Marine |
Components enduring saltwater corrosion. |
|
|
Food Production |
Equipment resisting corrosion from foods and cleaners. |
|
|
Pharmaceutical |
Vessels and lines for corrosive substances. |
Gangsteel’s ASME SA 312/SA 312M stainless pipes pair with SA240 304L for corrosion-resistant systems.
The density of SA240 304L is 7.93 g/cm³ (7930 kg/m³). To calculate plate weight:
Weight (kg) = Density (kg/m³) × Volume (m³)
Volume (m³) = Length (m) × Width (m) × Thickness (m)
Example:
This is useful for SA240 Gr 304L in corrosive designs.
SA240 304L emphasizes corrosion resistance. The table below compares it with Gangsteel grades:
|
Grade |
Key Features |
Best Use Case |
|---|---|---|
|
Low carbon, high corrosion resistance. |
Corrosive welded environments. |
|
|
Standard corrosion resistance, higher strength. |
General use with moderate corrosion. |
|
|
Molybdenum for chloride corrosion. |
Marine, severe corrosives. |
|
|
Lower cost, reduced resistance. |
Mild corrosion settings. |
Gangsteel’s nickel alloy steel plates offer advanced corrosion options.
Gangsteel, a stainless solution expert in China, provides SA240 304L corrosion material plates with:
SA240 304L corrosion material plates provide exceptional resistance for chemical, marine, and food industries. With defined composition and properties, they address corrosion challenges, supported by equivalents like EN 1.4307. Gangsteel’s solutions in China, including SA240 Gr 316L and SA240 Gr 904L, deliver quality. Contact Gangsteel for UNS stainless steel plates to meet your corrosion requirements.
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