ASTM A194 Gr 4 Stud Bolts

ASTM A194 Gr 4 Stud Bolts are high-strength carbon steel fasteners used for securing flanges, valves, and pressure piping components in demanding industrial environments. Known for their excellent toughness and load-bearing capability, these stud bolts are widely used in petrochemical plants, oil refineries, power generation units, and heavy engineering structures. Zeron Fasteners manufactures and supplies premium ASTM A194 Grade 4 Stud Bolts that ensure superior performance under high pressure and elevated temperatures. Designed with durability and reliability in mind, these fasteners provide secure tightening, resistance to stress, and long service life across critical applications.

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ASTM A194 Gr 4 Nuts ASTM A194 Gr 4 Hex Bolts ASTM A194 Screws ASTM A194 Alloy Steel Screws ASTM A194 Gr 4 Washers

ASTM A194 Gr 4 Stud Bolts Chemical Composition

Element Composition (%)
Carbon (C) 0.40 – 0.50
Manganese (Mn) 0.60 – 0.90
Phosphorus (P) 0.04 max
Sulfur (S) 0.05 max
Silicon (Si) 0.15 – 0.30
Chromium (Cr) 0.30 – 0.60
Molybdenum (Mo) 0.12 – 0.25
Copper (Cu) 0.40 max

ASTM A194 Gr 4 Stud Bolts Mechanical Properties

Mechanical Property Value
Tensile Strength 110 ksi (min)
Yield Strength 82 ksi (min)
Elongation 17% (min)
Hardness HRB 89 – 100

ASTM A194 Gr 4 Stud Bolts Feature Products

High Temperature Resistant Fasteners

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