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ASME A320 L7 Hex Bolt
QS Fastener: ASME A320 L7 Hex Bolt
Name: ASME A320 L7 Hex Bolt
Standard: ASME
Material: A320 L7
Surface Finishing: Black
Size: M6 to M100
Total Length: 30 to 1000 mm
Grade: A
Application: Oil Pipeline, Machinery, Chemical Industry, Building
Standard: ASME
Material: A320 L7
Surface Finishing: Black
Size: M6 to M100
Total Length: 30 to 1000 mm
Grade: A
Application: Oil Pipeline, Machinery, Chemical Industry, Building
Quantity
The ASME A320 L7 Hex Bolt is a high-strength bolt compliant with ASME standards, manufactured from premium A320 L7 alloy steel, offering exceptional low-temperature toughness and tensile strength (tensile strength ≥930 MPa). Its surface is treated with black oxide coating, further enhancing its corrosion resistance, making it suitable for extreme environments. The bolt is available in a wide range of sizes (M6 to M100, lengths 30 to 1000 mm), catering to diverse engineering needs. Its superior performance makes it widely used in oil pipelines, heavy machinery, the chemical industry, and construction projects, ensuring secure and reliable connections. Whether in high-pressure, low-temperature, or corrosive environments, the ASME A320 L7 Hex Bolt is a trusted choice.
In addition to black oxide coating, the ASME A320 L7 Hex Bolt can also be treated with Dacromet Coating, an advanced metal surface treatment technology particularly suited for highly corrosive environments. It offers excellent corrosion resistance, high-temperature stability, and eco-friendliness. Below are its detailed features and application advantages:
1. Exceptional Corrosion Resistance
Dacromet Coating forms a dense passivation layer through a composite reaction of zinc powder, aluminum powder, and chromate, effectively isolating the substrate from corrosive media. Its salt spray resistance exceeds 1000 hours, far surpassing traditional zinc plating (typically 72-240 hours). This makes it ideal for marine environments, chemical equipment, and other highly corrosive applications, significantly enhancing the performance of the ASME A320 L7 Hex Bolt in extreme conditions.
Dacromet Coating forms a dense passivation layer through a composite reaction of zinc powder, aluminum powder, and chromate, effectively isolating the substrate from corrosive media. Its salt spray resistance exceeds 1000 hours, far surpassing traditional zinc plating (typically 72-240 hours). This makes it ideal for marine environments, chemical equipment, and other highly corrosive applications, significantly enhancing the performance of the ASME A320 L7 Hex Bolt in extreme conditions.
2. Outstanding High-Temperature Performance
Dacromet Coating remains stable in high-temperature environments, withstanding continuous operating temperatures up to 300°C and short-term exposure up to 500°C. This feature broadens its application in automotive engines, high-temperature pipelines, and industrial furnaces, further expanding the versatility of the ASME A320 L7 Hex Bolt.
Dacromet Coating remains stable in high-temperature environments, withstanding continuous operating temperatures up to 300°C and short-term exposure up to 500°C. This feature broadens its application in automotive engines, high-temperature pipelines, and industrial furnaces, further expanding the versatility of the ASME A320 L7 Hex Bolt.
3. Eco-Friendly and Hydrogen Embrittlement-Free
Unlike traditional electroplating, Dacromet Coating is free from hexavalent chromium (Cr6+), complying with RoHS and other environmental standards. Additionally, the process does not require acid pickling, eliminating the risk of hydrogen embrittlement. This eco-friendly characteristic is particularly beneficial for high-strength bolts and precision components, offering a safer option for the ASME A320 L7 Hex Bolt.
Unlike traditional electroplating, Dacromet Coating is free from hexavalent chromium (Cr6+), complying with RoHS and other environmental standards. Additionally, the process does not require acid pickling, eliminating the risk of hydrogen embrittlement. This eco-friendly characteristic is particularly beneficial for high-strength bolts and precision components, offering a safer option for the ASME A320 L7 Hex Bolt.
4. Uniform Coating Coverage
Dacromet Coating is applied through dipping or spraying, ensuring uniform coverage even on complex shapes, including threads and grooves, providing comprehensive corrosion protection. This makes the ASME A320 L7 Hex Bolt more reliable in various intricate applications.
Dacromet Coating is applied through dipping or spraying, ensuring uniform coverage even on complex shapes, including threads and grooves, providing comprehensive corrosion protection. This makes the ASME A320 L7 Hex Bolt more reliable in various intricate applications.
5. Long Service Life
In typical industrial environments, Dacromet Coating can last over 10 years, significantly reducing maintenance costs and downtime. This long-lasting protection makes the ASME A320 L7 Hex Bolt an ideal choice for high-demand engineering projects.
In typical industrial environments, Dacromet Coating can last over 10 years, significantly reducing maintenance costs and downtime. This long-lasting protection makes the ASME A320 L7 Hex Bolt an ideal choice for high-demand engineering projects.
Application Fields
Combined with Dacromet Coating, the ASME A320 L7 Hex Bolt is widely used in the following scenarios:
Automotive Industry: Engine components, chassis bolts, etc.
Energy Sector: Wind power equipment, oil pipelines, chemical equipment.
Construction Engineering: Steel structure connectors, bridge bolts.
Rail Transit: High-speed rail bolts, track fasteners.
Marine Engineering: Ship components, offshore platform equipment.
Combined with Dacromet Coating, the ASME A320 L7 Hex Bolt is widely used in the following scenarios:
Automotive Industry: Engine components, chassis bolts, etc.
Energy Sector: Wind power equipment, oil pipelines, chemical equipment.
Construction Engineering: Steel structure connectors, bridge bolts.
Rail Transit: High-speed rail bolts, track fasteners.
Marine Engineering: Ship components, offshore platform equipment.
The ASME A320 L7 Hex Bolt, with its high strength, low-temperature toughness, and corrosion resistance, is a reliable choice for extreme environments. Combined with Dacromet Coating technology, its anti-corrosion performance and application scope are further enhanced, meeting diverse needs in automotive, energy, construction, rail transit, and marine engineering. Whether in high-pressure, low-temperature, or corrosive environments, the ASME A320 L7 Hex Bolt delivers exceptional connection solutions, ensuring equipment safety.
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