Common Hastelloy

Commonly used Hastelloy alloys: Hastelloy C276, Hastelloy C22, Hastelloy C-2000, Hastelloy C-4, Hastelloy C, Hastelloy B, Hastelloy B-2, Hastelloy B-3, Hastelloy X, Hastelloy G-30, Hastelloy G-35, etc.

Hastelloy B-2(N 10665) nickel-base alloy/Hastelloy

Hastelloy B-2 (Hastelloy)

Hastelloy B-2 has the following characteristics.

● Keep the contents of iron and chromium to the lowest level to prevent the formation of β phase Ni4Mo.

Excellent corrosion resistance to reducing environment.

Excellent corrosion resistance to medium concentration sulfuric acid and many non-oxidizing acids.

Good resistance to chloride reduction stress corrosion cracking (SCC)

Excellent corrosion resistance to various organic acids.

Application field of Hastelloy B-2

● Widely used in chemical, petrochemical, energy manufacturing, pollution control and other fields, especially in sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid and other industries. If it is used in special fields, please consult the material supplier.

Hastelloy B-2 similar brand

NS322 (China) 00Mo28Ni68Fe2, NiMo28 (France), W.Nr.2.46 17, NiMo28 (Germany), Hastelloy B-2, UNS N 10665 (USA)? Nemo 28 (International Organization for Standardization)

Physical properties of Hastelloy B-2

HastelloyB-2 density

Density rho ρ= 9.2g/cm3

Melting temperature range of HastelloyB-2

Melting temperature range? 1330~ 1380℃

Welding of Hastelloy B-2

Hastelloy B-2 can adopt GTAW/TIG or SMAW/MMA in some cases.

The welded material shall be annealed to remove scale, oil stain and various marks. The parent metal area about 25mm wide on both sides of the weld must be polished into bright metal.

The thermal conductivity of Hastelloy B-2 is lower than that of steel. When a single V-shaped welded joint is used, the angle should be 70, the heat input should be low, and the interlayer temperature should not exceed 65438 020℃.

The oxidized color can be brushed off while the weld is still hot.

In some applications, post-weld heat treatment is needed to eliminate residual stress and improve stress corrosion cracking resistance.

In order to obtain the best corrosion resistance, argon arc welding, namely GTAW, is recommended.

Hastelloy B-2 filler metal

Commonly used filler metals:

GTAW

Nimofor S 6928

Warehouse number 2.46 15

AWS A5. 14 ERNiMo-7

BS 290 1 NA44

SMAW

Warehouse number 2.46 16

El-Nemo 29

AWS A5. 1 1 ENiMo-7

When submerged arc welding is used for surfacing:

Welding tape

Nimofor B 6928

W.-Nr。 2.46 15

UP-NiMo27

Only by using this covered electrode can the precipitation of carbon and silicon be avoided or minimized.