ASTM A193 B7M Hex Bolts

ASTM A193 B7M Hex Bolts are high-strength alloy steel fasteners specifically designed for high-temperature, high-pressure and critical service environments. These bolts are tempered at lower hardness levels to provide improved ductility and stress-corrosion resistance, making them ideal for oil refineries, chemical plants, boilers and pressure vessel assemblies. Zeron Fasteners manufactures durable and precision-engineered B7M Hex Bolts that ensure maximum safety and reliability in demanding applications. Our ASTM A193 B7M Bolts meet global standards and are widely used in petrochemical piping systems, industrial flanges, and heavy engineering structures.

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A193 B7M Hex Bolts A193 B7M Stud Bolts A193 B7M Nuts A193 B7 Fasteners A193 B7M Washers

ASTM A193 B7M Hex Bolts Chemical Composition

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

ASTM A193 B7M Hex Bolts Mechanical Properties

Mechanical Property Value
Tensile Strength 585 MPa min
Yield Strength 415 MPa min
Hardness 223 HB max
Elongation 20% min
Reduction of Area 40% min

ASTM A193 B7M Hex Bolts Feature Products

High Temperature Resistant Bolts

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