UNS N10001 (Hastelloy B)

Short Introduction:

Hastelloy B/GB NS321/UNS N10001 is the face-centered cubic lattice structure. By controlling the content of iron and chromium at the minimum to reduce the processing brittle, prevent Ni4Mo precipitation during 700-870 ℃.

Category:

Description

Hastelloy B /UNS N10001

Material grades and equivalents Hastelloy B/GB NS321/UNS N10001

Chemical compostion:

Alloy

%

Ni

Mo

Fe

Cr

Co

C

Mn

V

Si

P

S

 

GB NS321

Min.

 

Rest

26

4

0.2

Max.

30

6

1

2.5

0.05

1

0.4

1

0.04

0.03

 

GB NS321 Physical properties:

Density

9.24g/cm3

Melting point

1330-1380℃

 

GB NS321Alloy minimum mechanical properties in the room temperature:

 

Alloy state

Tensile strength

Rm N/mm2

Yield strength

RP0.2N/mm2

Elongation

A5 %

GB NS321

690

310

40

 

Characteristic:

  1. Control of iron and chromium content to a minimum to prevent the generation of β-phase

  2. Excellent corrosion resistance of restore

  3. An excellent resist to concentration sulfuric acid medium and large number of non-oxidizing acid corrosion.

  4. A very good resistance of chloride reduction of stress corrosion cracking (SCC).

  5. Good corrosion resistance of various organic acids.

 Metallurgical structure:

  • GB NS321 is the face-centered cubic lattice structure. By controlling the content of iron and chromium at the minimum to reduce the processing brittle, prevent Ni4Mo precipitation during 700-870 ℃.

Corrosion resistance:

  • Ni-Mo alloy HY HB, the carbon and silicon content is extremely low, reducing the HAZ carbon and other impurities precipitation, so the weld has sufficient corrosion resistance. Alloy HY HBin the reduction of medium with very good corrosion resistance, such as a various temperature and concentration of hydrochloric acid. In the middle of the concentration of sulfuric acid solution (or contain a certain amount of chloride ions) also has very good corrosion resistance. At the same time can be used to acetic acid and phosphoric acid environment. Alloy material suitable only in the metallurgical structure and pure crystal structure in order to have the best corrosion resistance.

Applied field:

  • GB NS321 Alloy with a wide range of applications in the field of chemical, petrochemical, energy manufacturing and pollution control , particularly in the sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid, and other industries.