ASTM A193 B16 Threaded Rods

The ASTM A193 B16 Threaded Rod is a specialized, continuously threaded fastener designed for extremely severe service conditions, specifically in applications where sustained high temperatures (above $850^\circ\text{F}$ or $454∘C) and high pressures are present. This rod is manufactured from a Chromium-Molybdenum-Vanadium alloy steel, which is engineered to provide exceptional creep resistance—the ability to resist permanent deformation and stress relaxation under high stress over long periods at elevated heat. Often referred to as all-thread or stud stock, these rods are cut to specific lengths and used with two Grade 4 or Grade 7 heavy hex nuts to secure flanges, valve bodies, and pressure vessels in critical systems like steam lines and turbine assemblies. Zeron Fasteners manufactures these B16 threaded rods to ensure the high tensile strength and superior thermal stability required for demanding applications in thermal power plants and petrochemical facilities.

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ASTM A193 B16 Threaded Rods Manufacturer in India

ASTM A193 B16 Threaded Rods Chemical Composition

Element Composition (% by Mass)
Carbon (C) 0.37 - 0.49
Manganese (Mn) 0.70 - 1.10
Phosphorus (P) ≤ 0.035
Sulfur (S) ≤ 0.040
Silicon (Si) 0.15 - 0.35
Chromium (Cr) 0.80 - 1.15
Molybdenum (Mo) 0.45 - 0.65
Vanadium (V) 0.25 - 0.35

ASTM A193 B16 Threaded Rods Mechanical Properties

Property Minimum Requirement (Grade B16)
Tensile Strength, min 125 ksi (860 MPa)
Yield Strength, min (0.2% offset) 105 ksi (720 MPa)
Elongation in 2 in. (50 mm), min 18%
Reduction of Area, min 50%
Hardness, max (Brinell) 321 HBW
Hardness, max (Rockwell) 35 HRC

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