SA193 Grade B7 Hex Bolt

SA193 Grade B7 Hex Bolts offer outstanding strength, reliability, and heat resistance, making them a top choice for industrial, construction, and high-temperature applications. They are commonly used in pressure vessels, pipelines, valves, flanges, and structural connections, especially where high tensile performance is required.

Key Benefits

Excellent strength and toughness provided by heat-treated chromium-molybdenum alloy steel, with minimum tensile strength around 125 ksi (860 MPa) and yield strength of 105 ksi (720 MPa).

Reliable performance in medium to high temperature environmentscan operate up to 450C (840F).

Resistant to moderate corrosion due to chromium content, increasing the bolts toughness and making them suitable for harsh environments.

Cost-effective compared to stainless steel fasteners, while still providing high mechanical properties.

Versatile compatibility with various nut grades, typically paired with A194 Grade 2H nuts for secure connections.

Typical Application

Widely used in pressure vessels, chemical processing plants, power generation facilities, and oil & gas pipelines for high temperature/high-pressure bolting.

Suitable for flanges, fittings, and valves in industries requiring secure, high-strength fasteners.

Found in construction, automotive, energy infrastructure, and general engineering.

Heavy hex bolts, stud bolts, threaded rods, and cap screws are common forms for different connection needs.

Usage & Installation Steps

Manufactured using heat-treated chromium-molybdenum steel, often following quenching and tempering processes for enhanced durability.

Available in metric sizes (M6M180) and imperial sizes (1/4"8") with different thread standards (ISO, ASME, BS, etc.).

Commonly used in bolted joints requiring reliable tensile and structural integrity under high-stress conditions.

Installation typically involves pairing with compatible nuts and washers to prevent loosening and ensure safety.

Other well-known Names for same product

SA193 Grade B7 Hex Bolt

ASTM A193 B7 Bolts

High tensile alloy steel bolts

High temperature hex bolts

Chromium molybdenum fasteners

Pressure vessel fasteners

Industrial hex bolts

Heavy hex bolts

B7 stud bolts

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More Technical Details

SA193 Grade B7 Hex Bolts provide a balance of strength, durability, and economy, fulfilling the needs of industrial fastener applications requiring high performance under stress and temperature variations.

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