UNS N10665 (GB NS32 Hastelloy B-2)

Short Introduction:

  • GB NS322/Hastelloy B-2/GB NS322/UNS N10665/SEW VDIUV W.Nr.2.4617 NiMo28/AFNOR
  • NiMo28 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

GB NS32 / Hastelloy B-2 /UNS N10665

GB NS322 Material grades and equivalents Hastelloy B-2/GB NS322/UNS N10665/SEW VDIUV W.Nr.2.4617

 

 GB NS322 Chemical compostion:

Alloy % Ni Mo Fe Cr Co C Mn V Si P S
   GB NS322 Min.   Balance 26 4 0.2
 Max.  30  6  1  2.5 0.05  1  0.4  1  0.04  0.03

 

 GB NS322 Physical properties:

Density 9.24g/cm3
Melting point 1330-1380℃

 

 GB NS322 Alloy minimum mechanical properties in the room temperature:

 Alloy state Tensile strength Rm N/mm2 Yield strength RP0.2N/mm2 Elongation A5 %
GB NS322 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 NS322  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  Hastelloy B-2, the carbon and silicon content is extremely low, reducing the HAZ carbon and other impurities precipitation, so the weld has sufficient corrosion resistance. Alloy Hastelloy B- 2 in 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:

Alloy  Hastelloy B-2 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.

 

 

Specifications:

 

 

Plate, Sheet, Strip

 ASTM B333, ASME SB333
 Bar ASTM B 335, ASME SB335, (DUAL CERTIFIED TO ASTM B564, ASME    SB564ON 3-1/2 DIA. AND UP)
 Welded Pipe ASTM B619, ASME SB619, CLASS I or II, (ABOVE 8 SCH 40)       ASTM B775,ASME SB775
 Seamless Pipe  ASTM B622, ASME SB622