Hex Head Cap Screw M6x25 ISO 4017 1.4462
Hex head cap screw M6x25 ISO 4017 1.4462 describes a specific type of screw. Here's what each component signifies:
Hex head cap screw: This indicates the type of screw. It has a hexagonal (six-sided) head with a cap, allowing it to be tightened or loosened with a wrench or socket.
M6x25: Specifies the size and thread specifications of the screw. "M6" denotes the metric size, specifically 6 millimeters in diameter. "25" refers to the length of the screw, which is 25 millimeters.
ISO 4017: This specifies the international standard for the screw. ISO 4017 is the standard for hexagon head screws with a full thread according to the International Organization for Standardization (ISO).
1.4462: This denotes the material grade of the screw. "1.4462" is a stainless steel grade, also known as duplex stainless steel or UNS S31803. It contains chromium, molybdenum, and nitrogen, providing excellent corrosion resistance and high strength properties.
Grade of 1.4462 (Duplex Stainless Steel):
The grade 1.4462 is also known as UNS S31803, which is a common designation for duplex stainless steel. It may also be referred to by other trade names or standards, such as ASTM A182 Grade F51 or EN 1.4462.
Composition of 1.4462 (Duplex Stainless Steel):
| Element | Composition Range |
|---|---|
| Chromium (Cr) | 21.0 - 23.0% |
| Nickel (Ni) | 4.5 - 6.5% |
| Molybdenum (Mo) | 2.5 - 3.5% |
| Nitrogen (N) | 0.10 - 0.22% |
| Manganese (Mn) | ≤ 2.00% |
| Silicon (Si) | ≤ 1.00% |
| Phosphorus (P) | ≤ 0.030% |
| Sulfur (S) | ≤ 0.015% |
| Carbon (C) | ≤ 0.030% |
Characteristics of 1.4462 (Duplex Stainless Steel):
Duplex stainless steel grade 1.4462 offers a combination of excellent corrosion resistance and high mechanical strength.
It has good weldability and formability properties, making it suitable for various fabrication processes.
The duplex microstructure provides superior resistance to stress corrosion cracking, pitting, and crevice corrosion in chloride-containing environments.
It finds applications in industries such as oil and gas, chemical processing, marine engineering, and desalination plants.
In summary, "Hex head cap screw M6x25 ISO 4017 1.4462" describes a screw with a hexagonal head, metric size of 6 millimeters in diameter and 25 millimeters in length, conforming to the ISO 4017 standard, and made from duplex stainless steel grade 1.4462. These screws are commonly used in applications requiring corrosion resistance and mechanical strength, such as marine environments, chemical processing, and offshore oil and gas platforms.
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