ASTM A194 Gr 4 Washers

ASTM A194 Gr 4 Washers are high-strength carbon alloy steel washers used to provide load distribution, vibration resistance, and secure tightening in heavy-duty industrial bolting assemblies. Known for their durability and ability to withstand high pressure and elevated temperatures, these washers are widely used in oil refineries, power plants, chemical processing units, construction projects, and heavy engineering systems. Zeron Fasteners supplies precision-engineered ASTM A194 Grade 4 Washers that ensure stable performance even in harsh environments. These washers work effectively with bolts and nuts in critical applications, making them essential components in secure fastening systems.

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ASTM A194 Gr 4 Washers Chemical Composition

Element Composition (%)
Carbon (C) 0.47 – 0.58
Manganese (Mn) 0.70 – 0.90
Silicon (Si) 0.15 – 0.30
Phosphorus (P) 0.040 max
Sulfur (S) 0.050 max
Copper (Cu) 0.40 max

ASTM A194 Gr 4 Washers Mechanical Properties

Mechanical Property Value
Tensile Strength 760 MPa min
Yield Strength 380 MPa min
Hardness 223 – 262 HB
Elongation 12% min

ASTM A194 Gr 4 Washers Feature Products