Standard: ASTM, AISI, DIN, EN, GB, JIS
Technique: Hot Rolled/Cold Rolled/Galvnized
Processing Service: Welding, Punching, Cutting
Available Size Range: Click here
Get A QuoteStainless steel coils are widely used in various industries due to their excellent corrosion resistance and durability.
Chemical Composition:
Typically, it contains elements like chromium (Cr), nickel (Ni), molybdenum (Mo), and iron (Fe). For example, in 304 stainless steel, chromium is around 18 - 20%, nickel about 8 - 10.5%, and the remainder is mainly iron. Different grades have varying proportions of these elements to achieve specific properties.
Mechanical Properties:
• Tensile strength: Varies by grade. For common grades, it can range from 500 to over 1000 MPa.
• Yield strength: Also grade-dependent, generally in the range of 200 - 600 MPa.
• Elongation: It shows the ductility of the material, usually between 40% - 60% for typical stainless steel coils.
Standard Specifications by Country:
| Country | Standard | Main Specifications |
| USA | ASTM | Defines material composition, mechanical property requirements, and surface finish standards for different grades. For instance, ASTM A240 covers stainless steel plate, sheet, and coil. |
| Germany | DIN | DIN standards provide detailed guidelines on dimensions, tolerances, and quality control. DIN 17440 is relevant for stainless steel semi-finished products. |
| China | GB/T | GB/T standards ensure the uniformity and quality of domestic stainless steel products. GB/T 4237 specifies hot-rolled stainless steel plates, sheets, and strips. |
Popular Grades:
• 304: It is one of the most widely used grades, suitable for general-purpose applications. It has good corrosion resistance in normal environments and is commonly used in kitchen appliances, architecture facades.
• 316: With higher molybdenum content compared to 304, it offers enhanced corrosion resistance, especially in chloride-rich environments like coastal areas or chemical processing plants. It is often used for marine applications and some medical equipment.
Popular Q&A:
Q: What is the main difference between 304 and 316 stainless steel coils?
A: The main difference is the molybdenum content. 316 has more molybdenum, which gives it better corrosion resistance in chloride-containing environments, while 304 is suitable for general, less harsh conditions.
Q: How do I choose the right stainless steel coil grade for my project?
A: Consider the operating environment, such as temperature, humidity, presence of corrosive substances. If it's a mild indoor environment, 304 might be sufficient. For harsher conditions like seawater exposure, 316 is a better choice.
Q: Can stainless steel coils be easily fabricated?
A: Yes, they can be cut, bent, welded, etc. However, proper fabrication techniques and equipment should be used to maintain the material's properties. For welding, matching filler materials are required to ensure good joint quality.
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