ASTM A193 B7 Socket Head Cap Screws

ASTM A193 B7 Socket Head Cap Screws are high-strength alloy steel fasteners widely used in demanding applications requiring reliable clamping force and exceptional tensile strength. These screws feature a cylindrical head with an internal hex drive, making them ideal for precision assemblies and high-pressure environments. Zeron Fasteners provides premium-grade ASTM A193 B7 Socket Head Cap Screws designed for applications in petrochemical plants, pressure vessels, heat exchangers, engine components, and heavy machinery. These B7 socket screws deliver exceptional performance due to their heat-treated alloy steel structure, corrosion resistance, and superior mechanical integrity.

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ASTM A193 B7 Socket Head Cap Screws Chemical Composition

Element Composition (%)
Carbon (C) 0.37 – 0.49
Manganese (Mn) 0.65 – 1.10
Phosphorus (P) 0.04 max
Sulfur (S) 0.05 max
Silicon (Si) 0.15 – 0.35
Chromium (Cr) 0.80 – 1.10
Nickel (Ni) 0.25 max
Molybdenum (Mo) 0.15 – 0.25

ASTM A193 B7 Socket Head Cap Screws Mechanical Properties

Mechanical Property Value
Tensile Strength 860 MPa min
Yield Strength 720 MPa min
Elongation 16% min
Hardness Rockwell C 24 – 34

ASTM A193 B7 Socket Head Cap Screws Feature Products

High Tensile Strength Alloy Steel Screws

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