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ASME SA 240 Grade 304 stainless steel plate is one of the most versatile and widely used grades of stainless steel. It belongs to the austenitic stainless steel family and is known for its excellent corrosion resistance, good formability, and weldability. SA240 Grade 304 is part of the ASTM A240/ASME SA240 standard, which specifies chromium and chromium-nickel stainless steel plate, sheet, and strip for pressure vessels and general applications.
Element |
Content (%) |
Carbon (C) |
≤ 0.08 |
Manganese (Mn) |
≤ 2.00 |
Phosphorus (P) |
≤ 0.045 |
Sulfur (S) |
≤ 0.030 |
Silicon (Si) |
≤ 0.75 |
Chromium (Cr) |
18.0 – 20.0 |
Nickel (Ni) |
8.0 – 10.5 |
Nitrogen (N) |
≤ 0.10 |
Iron (Fe) |
Balance |
Property |
Value |
Tensile Strength |
≥ 515 MPa |
Yield Strength (0.2% offset) |
≥ 205 MPa |
Elongation (in 50mm) |
≥ 40% |
Hardness (Brinell) |
≤ 201 HB |
Standard |
Equivalent Grade |
ASTM / ASME |
A240 / SA240 304 |
EN |
1.4301 (X5CrNi18-10) |
JIS |
SUS 304 |
GB / T |
06Cr19Ni10 |
DIN |
X5CrNi18-10 |
SA240 Grade 304 stainless steel plate is used in a wide range of industries due to its balance of strength, corrosion resistance, and cost-effectiveness. Common applications include:
• Which welding rod is used for SS 304
• How to know if stainless steel is 304
• What is the equivalent of ASTM A240
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