ASTM A193 B7M Nuts

ASTM A193 B7M Nuts are high-strength alloy steel fasteners specially designed for high-pressure, high-temperature, and corrosive industrial environments. These nuts undergo controlled heat treatment to improve their ductility and toughness, making them ideal for petrochemical plants, refineries, oil and gas pipelines, boilers, and pressure vessel applications. Zeron Fasteners manufactures and supplies precision-engineered ASTM A193 B7M Nuts that ensure superior performance, consistent torque, and long-term reliability. These nuts are widely used with B7M bolts in critical assemblies where enhanced tensile strength and stress corrosion resistance are essential.

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ASTM A193 B7M Nuts Chemical Composition

Element Composition (%)
Carbon (C) 0.30 – 0.40
Manganese (Mn) 0.60 – 1.00
Phosphorus (P) 0.04 max
Sulfur (S) 0.05 max
Silicon (Si) 0.15 – 0.35
Chromium (Cr) 0.80 – 1.10
Molybdenum (Mo) 0.15 – 0.25

ASTM A193 B7M Nuts Mechanical Properties

Property Value
Tensile Strength 100 ksi min
Yield Strength 65 ksi min
Hardness Rockwell C 26 – 34
Elongation 16% min

ASTM A193 B7M Nuts Feature Products