Hastelloy B

1.Hastelloy B Corresponding Grade

2.Hastelloy B Introduction

Hastelloy B is a nickel-molybdenum corrosion-resistant alloy. Its main feature is the corrosion resistance of boiling hydrochloric acid. The alloy has good corrosion resistance under atmospheric conditions, especially in natural water and high-purity water. It has a wide range of applications in the fields of petrochemical, energy manufacturing and pollution control, especially in industries such as sulfuric acid, hydrochloric acid, phosphoric acid, and acetic acid, but its disadvantage is that once it passes through the welding seam, there will be knife-edge corrosion, and crystals will appear in the heat-affected zone. intercorrosion.

3.Hastelloy B Chemical Composition

4.Hastelloy B Physical Properties

5.Hastelloy B Mechanical Behavior

6.Hastelloy B Metallographic Structure

Hastelloy B has a face-centered cubic lattice structure. By controlling the iron and chromium content to a minimum, processing, brittleness is reduced, and the precipitation of Ni4Mo phase is prevented at 700-870 °C.

7.Hastelloy B Corrosion Resistance

HastelloyB has extremely low carbon and silicon content, which reduces the precipitation of carbon and other impurity phases in the welding heat-affected zone. Therefore, the weld also has sufficient corrosion resistance. HastelloyB-2 alloy has good corrosion resistance in reducing media, such as hydrochloric acid solutions of various temperatures and concentrations. It also has good corrosion resistance in medium concentration sulfuric acid solution (or containing a certain amount of chloride ions). It can also be used in acetic and phosphoric environments. Alloy materials have the best corrosion resistance only when they are in suitable metallographic state and pure crystal structure.

8. Hastelloy B Scope Of Application Application Field

HastelloyB has a wide range of applications in chemical, petrochemical, energy manufacturing and pollution control fields, especially in industries such as sulfuric acid, hydrochloric acid, phosphoric acid, and acetic acid.

9. Hastelloy B Product Types

HastelloyB seamless pipe, HastelloyB steel plate, HastelloyB round steel, HastelloyB forging, HastelloyB flange, HastelloyB ring, HastelloyB welded pipe, HastelloyB steel strip, HastelloyB wire and HastelloyB supporting welding consumables.

10.Hastelloy B Delivery status

Seamless tube: solid solution + acid white, the length can be fixed;

Plate: solid solution, pickling, trimming;

Welded pipe: solid solution acid white + RT% flaw detection,

Forgings: Annealing + Turning;

Bars in the forged state, polished or turned;

The strip is delivered after cold rolling, solid solution soft state, and descaling;

The wire is delivered in the form of solid solution pickled disc or straight strip, and the solid solution straight strip is finely ground.