ASTM A194 Gr 4 Nuts

ASTM A194 Gr 4 Nuts are high-strength alloy steel nuts designed for use in pressure vessels, valves, flanges, and other critical bolting assemblies that operate under high temperature and high pressure conditions. These nuts are heat-treated for enhanced mechanical strength and corrosion resistance, making them suitable for petrochemical plants, power generation units, refineries, and heavy engineering sectors. Zeron Fasteners offers precision-engineered ASTM A194 Grade 4 Nuts that ensure secure tightening and long-term durability in demanding industrial environments. Their consistent quality and reliability make them a preferred choice for heavy-duty fastener applications.

Related Products

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

ASTM A194 Gr 4 Nuts Chemical Composition

Element Composition (%)
Carbon (C) 0.40 max
Manganese (Mn) 0.60 - 0.90
Phosphorus (P) 0.040 max
Sulfur (S) 0.050 max
Silicon (Si) 0.15 - 0.30
Chromium (Cr) 0.80 - 1.10
Molybdenum (Mo) 0.15 - 0.25

ASTM A194 Gr 4 Nuts Mechanical Properties

Mechanical Property Value
Tensile Strength 690 MPa min
Yield Strength 380 MPa min
Elongation 20% min
Hardness 223 HB max
Proof Load 600 MPa

ASTM A194 Gr 4 Nuts Feature Products

High Strength Alloy Steel Fasteners

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