Domestic B7/L7 B7M/L7M
What is Domestic B7/L7 B7M/L7M?
System 22 stocks US Melt and Manufacture Grade B7 and L7 fasteners and raw material along with their modified counterparts B7M and L7M. Manufactured from high-strength alloy steel grades designed for fasteners such as studs, socket head cap screws, and bolts. These materials comply with ASTM A193 B7 and ASTM A320 Grade L7 standards, ensuring superior quality and performance. Known for its exceptional mechanical properties Grade B7 is suited for high-pressure and high-temperature applications across critical industries like oil and gas, petrochemical, and power generation.
While ASTM A193 is a high temperature bolting specification ASTM A320 is a similar low temperature bolting specification. ASTM A320 Grade L7 is virtually identical in chemical and mechanical properties but requires additional testing to ensure compatibility with extremely low temperature environments.
The modified versions, B7M and L7M, are tempered to a lower hardness to provide enhanced corrosion protection particularly in sour gas environments.
Key Properties
and Advantages
1. High Tensile Strength
B7/L7 steels exhibit high tensile strength, making them perfect for applications requiring resistance to significant mechanical stress and heavy loads.
2. Heat Resistance
These grades maintain excellent performance at elevated temperatures, ensuring reliability in heat-intensive environments. B7M and L7M offer modified properties to extend their use in variable temperature conditions.
3. Versatility in Application
From pipeline infrastructure to high-pressure vessels, domestic B7/L7 and their modified forms, B7M/L7M, demonstrate unmatched versatility. Their ability to endure mechanical stress while maintaining integrity makes them essential for critical applications.
4. Corrosion and Wear Resistance
While primarily valued for mechanical strength and temperature resistance, these grades can be treated to exhibit moderate resistance to corrosion, extending the lifespan of fasteners in challenging environments.
Materials We Offer
ASTM/ASME 193 B7/B7M: High-strength alloy steel fasteners ideal for use in pressure vessels, power generation, and other high-temperature applications.
ASTM/ASME 193 L7/L7M: Engineered for low-temperature environments, offering reliable performance and mechanical properties even in extreme cold.
Domestic Material: Our fasteners are sourced from trusted domestic manufacturers to ensure the highest standards of quality, compliance, and reliability.
Available Forms: We offer a range of fasteners, including studs, socket head cap screws, and bolts, to meet the diverse needs of various industrial applications.
Why Choose System 22?
At System22, we are committed to providing our clients with high-quality fasteners and components that meet their specific needs. Our expertise in working with high-performance alloys, including Domestic B7, L7, B7M, and L7M, ensures that you receive products that deliver exceptional performance and value. We understand the importance of reliability, durability, and cost-effectiveness, and we strive to exceed your expectations with every project.
Whether you’re looking for standard fasteners or custom-engineered solutions, System22 is your trusted partner. Our team of experts will work closely with you to ensure that your components are manufactured to the highest standards, using the most suitable materials for your application.
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Ready to learn more about how Domestic B7, L7, B7M, and L7M can benefit your next project? Contact System22 today to discuss your needs with one of our specialists. We're here to provide you with the information and support you need to make informed decisions about your material choices.
Let us help you find the perfect solution for your fasteners and components. With System22, you're choosing quality, reliability, and expertise.