Hastelloy B3 Bars and Rods

Chung Metal offers Hastelloy B3 Bars and Rods, a nickel-molybdenum alloy specifically produced for performance against hydrochloric acid in various concentrations and at high temperatures. B3 provides a combination of chemical resistance and fabricability, particularly in conditions with high concentrations of reducing acids. Bars/rods are produced under careful composition control and finish to provide resistance to localized corrosion and maintain mechanical strength.

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Hastelloy B3 Round Bars

Hastelloy B3 Rectangular Bars

Hastelloy B3 Square Rods

Table of Contents

What is Hastelloy B3 Bars and Rods?

Hastelloy B3 contains high nickel (~65‑75%), molybdenum (~20‑25%), with minor chromium and trace of carbon. Resistant to pitting and localized corrosion in reducing acid medium. Tensile strength in annealed state is moderate (~550‑700 MPa), elongation fair; good weldability and toughness. Density ~8.9 g/cm³; high melting point (above 1350°C).

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Hastelloy B3 Bars and Rods Specification

Standard ASTM B335, ASME SB335
Round Bar Size 3mm~ 800mm
Square Bar Size 4mm* 4mm ~100mm* 100mm
Flat Bar Size 2mm ~ 100mm
Hex Bar Size 2mm ~ 100mm
Angle Size 3mm* 20mm* 20mm~ 12mm* 100mm* 100mm
Thickness 50 mm to 6000 mm Long
Length 1 To 6 Meters, Custom Cut Length
Form Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc

Chemical Compositions of Hastelloy B3 Bars

Grade Ni Mo Cr Fe W Mn C Al Ti Si
Hastelloy B3 65.0 min 28.5 1.5 1.5 3.0 max 3.0 max 0.01 max 0.50 max 0.2 max 10 max

Hastelloy Alloy B3 Rods Mechanical Properties

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
9.2 g/cm3 1370 °C (2550 °F) Psi – 1,15,000 , MPa –760 Psi – 52,000 , MPa – 350 40%

Hastelloy B3 Bars and Rods Equivalent Grades

STANDARD WERKSTOFF NR. UNS
Hastelloy B3 2.4600 N10675

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Hastelloy B3 Bars and Rods Types

Hastelloy B3 Hex Bars
Hastelloy B3 Hollow Rods
Hastelloy B3 Bright Bars
Hastelloy B3 Tringle Bars
Hastelloy B3 Flat Bars
Hastelloy B3 Polished Bars

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Frequently Asked Questions (FAQ)

Hastelloy B3 bars offer exceptional resistance to hydrochloric acid, excellent weldability, and superior corrosion resistance in aggressive environments. They also provide high strength and durability at elevated temperatures.

Yes, Hastelloy B3 rods can be welded using appropriate welding techniques. It is important to control heat input to avoid potential cracking or damage to the material.

 

Hastelloy B3 rods are available in various sizes, typically ranging from small diameters (1/8" to 1") to larger dimensions depending on the application. They are commonly offered in finishes such as cold-finished, hot-rolled, or polished for specific requirements.

Hastelloy B3 Bars and Rods Uses

Applied in chemical processing equipment, particularly hydrochloric acid (HCl) plants, acid production, pickling, acid recovery, acid blending vessels, and chemical plant piping. Also applied in heat exchangers and reactors where the aggressive reducing acids are working. Suitable for uses where there is a need for corrosion resistance along with strength against chemical attack in reducing environments.

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