Hastelloy B3 Pipe

1. Standard: ASTM B622, ASTM B474, ASTM B619
2. Size: 1 / 2"NB TO 12 "NB IN
3. Thickness: SCH5~SCHXXS
4. Equivalent: Hastelloy B3, UNS N10675 , WNR.2.4600

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Product Introduction

Hastelloy B3 Pipe is a nickel-molybdenum alloy that includes alloying elements such as chromium, iron, and tungsten, and is known for its excellent resistance to hydrochloric acid at all concentrations and temperatures. Hastelloy alloy B3 Tube is particularly suitable for environments exposed to strong acids, especially hydrochloric, sulfuric, and phosphoric acids. B3 Tube can also operate under high temperature conditions, with a maximum temperature range of up to 1,650°F (899°C). Better thermal stability than alloy B-2.

Alloy B3 pipe standard:

ASTM B474 Standard Specification for Electric Fusion Welded Nickel and Nickel Alloy Pipe

ASTM B622 Standard Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube

ASTM B619 Standard Specification for Welded Nickel and Nickel-Cobalt Alloy Pipe

ASTM B622 Hastelloy B-3 Seamless Pipe Chemical Composition

Grade

Hastelloy B3

65.0 min

28.5

1.5

0.01 max

3.0 max

1.5

3.0 max

0.10 max

0.2 max

3.0 max

0.50 max

.20 max

Hastelloy B3 Pipes Mechanical and Physical Properties

Element	Hastelloy Alloy B3
Density	9.2 g/cm3
Melting Point	1370 °C (2550 °F)
Tensile Strength	Psi – 1,15,000 , MPa –760
Yield Strength (0.2%Offset)	Psi – 52,000 , MPa – 350
Elongation	40%

Hastelloy B3 Pipe Application:

Chemical process industry for synthetic rubber, synthetic fibers, and plastics
Manufacturing of pollution control equipment, heat exchangers, and hydrometallurgical and refining equipment
Aerospace industry
Combustion chambers, afterburners, and exhaust systems

Fabrication with Hastelloy B-3

The lower carbon content Alloy B-3 is used in the as-welded condition due to its improved thermal stability. The alloy can be hot worked as forged, provided it is held at 2250°F long enough for the entire part to reach temperature. All common welding techniques can be used with Alloy B-3, however, oxyacetylene and submerged arc welding processes are not recommended when the fabricated article is to be used in corrosive service.