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Hastelloy B 2 65288 Uns N10665 65289 Ni Mo Alloy - China

price: contact company for price

Hastelloy B-2(UNS N10665)Hastelloy B-2(UNS N10665)Ni-

Mo alloy Hastelloy B-2's features and applications overview: The carbon

and silicon content of nickel-molybdenum alloys is very low, which

reduces the phase precipitation of the carbon and other impurities of

the weld heat affected zone, so the weld having a sufficient corrosion

resistance. Hastelloy B-2 has good corrosion resistance in reducing

medium, such as a variety of temperature and concentrations of

hydrochloric acid. It also has a very good corrosion resistance in

sulfuric acid solution of moderate concentration( or contains a certain

amount of chlorine ions). At the same time it can be used in acetic acid

and phosphoric acid environment.Only in appropriate metallographic state

and pure crystal structure can alloy material have the best corrosion

resistance. It has a wide range of applications in the chemical,

petrochemical, energy and pollution control field, especially in the

industry, such as sulfuric acid, hydrochloric acid, phosphoric acid,

acetic acid, etc.

Hastelloy B-2's similar grades :

NS322(China), NiMo28(France), W.Nr.2.4617(Germany)

chemical composition, %:

Nickel........................................balance

Chromium..................................0.4-1.0

Iron.............................................1.6-2.0

Molybdenum...............................26.0-30.0

Cobalt.........................................1.0 max

Carbon........................................0.01 max

Manganese..................................1.0 max

Sulfur...........................................0.01 max

Phosphorus...................................0.02 max

Copper..........................................0.5 max

physical properties:

Density, g/cm3 ......................................................................................9.2

Melting Range, °C................................................................................1330-1380

Thermal conductivity, λ/(W/m•°C), at 100°C .....................................11.1

Specific heat, J/kg•°C............................................................................377

Elastic modulus, GPa.............................................................................217

Electrical resistivity, μΩ•m....................................................................1.37

Coefficient of linear expansion, a/10-6°C-1, at 20-100°C.............10.3

mechanical properties :( the minimum value detected at room temperature)

Tensile strength, σb/MPa.....................................745

Yield strength, σp0.2/MPa...............................325

Elongation, σ5 /%...................................................................40

Brinell hardness, HBS.................................................................≥250

The way of heat treatment is solution treatment

available products and specifications:

Bar: ASTM B335, ASME SB335

Forging: ASTM B335, ASME SN335

Plate/Strip: ASTM B333, ASME SB333

Pipe: ASTM B622, ASTM B619, ASTM B626, ASME SB622, ASME SB619, ASME SB626

The metallurgical structure of Hastelloy B-2:

Hastelloy B-2 is of the face-centered cubic lattice structure. By controlling the content of iron and chromium at the minimum, the processing brittleness is reduced, and Ni4Mo's phase precipitation during 700-870 °C is prevented.

The process performance and requirements of Hastelloy B-2:

1, Should be rapidly heated to the required temperature. The range of thermal processing is 1160°C~900°C.

2, The average size of the grain size of the alloy is closely related to the forging deformation degree and the final forging temperature.

3, The adhesion of the oxide, oxidation color on Alloy's surface and the welding slag around the weld is stronger than those of stainless steel. For grinding, the fine crystal sand belt or fine grained grinding wheel is recommended.

4, The Alloy should be machined after annealing. Due to the high work-hardening rate of the material, the cutting speed should be lower than that of processing low alloy standard austenitic stainless steel and heavy feed is recommended for processing. So the surface of the cold hardening can be cut in.

Hastelloy B-2's

features and applications overview: The carbon and silicon content of

nickel-molybdenum alloys is very low, which reduces the phase

precipitation of the carbon and other impurities of the weld heat

affected zone, so the weld having a sufficient corrosion resistance.

Hastelloy B-2 has good corrosion resistance in reducing medium, such as

a variety of temperature and concentrations of hydrochloric acid. It

also has a very good corrosion resistance in sulfuric acid solution of

moderate concentration( or contains a certain amount of chlorine ions).

At the same time it can be used in acetic acid and phosphoric acid

environment.Only in appropriate metallographic state and pure crystal

structure can alloy material have the best corrosion resistance. It has

a wide range of applications in the chemical, petrochemical, energy and

pollution control field, especially in the industry, such as sulfuric

acid, hydrochloric acid, phosphoric acid, acetic acid, etc.

Hastelloy B-2's similar grades :

NS322(China), NiMo28(France), W.Nr.2.4617(Germany)

chemical composition, %:

Nickel........................................balance

Chromium..................................0.4-1.0

Iron.............................................1.6-2.0

Molybdenum...............................26.0-30.0

Cobalt.........................................1.0 max

Carbon........................................0.01 max

Manganese..................................1.0 max

Sulfur...........................................0.01 max

Phosphorus...................................0.02 max

Copper..........................................0.5 max

physical properties:

Density, g/cm3 ......................................................................................9.2

Melting Range, °C................................................................................1330-1380

Thermal conductivity, λ/(W/m•°C), at 100°C .....................................11.1

Specific heat, J/kg•°C............................................................................377

Elastic modulus, GPa.............................................................................217

Electrical resistivity, μΩ•m....................................................................1.37

Coefficient of linear expansion, a/10-6°C-1, at 20-100°C.............10.3

mechanical properties :( the minimum value detected at room temperature)

Tensile strength, σb/MPa.....................................745

Yield strength, σp0.2/MPa...............................325

Elongation, σ5 /%...................................................................40

Brinell hardness, HBS.................................................................≥250

The way of heat treatment is solution treatment

available products and specifications:

Bar: ASTM B335, ASME SB335

Forging: ASTM B335, ASME SN335

Plate/Strip: ASTM B333, ASME SB333

Pipe: ASTM B622, ASTM B619, ASTM B626, ASME SB622, ASME SB619, ASME SB626

The metallurgical structure of Hastelloy B-2:

Hastelloy B-2 is of the face-centered cubic lattice structure. By controlling the content of iron and chromium at the minimum, the processing brittleness is reduced, and Ni4Mo's phase precipitation during 700-870 °C is prevented.

The process performance and requirements of Hastelloy B-2:

1, Should be rapidly heated to the required temperature. The range of thermal processing is 1160°C~900°C.

2, The average size of the grain size of the alloy is closely related to the forging deformation degree and the final forging temperature.

3, The adhesion of the oxide, oxidation color on Alloy's surface and the welding slag around the weld is stronger than those of stainless steel. For grinding, the fine crystal sand belt or fine grained grinding wheel is recommended.

4, The Alloy should be machined after annealing. Due to the high work-hardening rate of the material, the cutting speed should be lower than that of processing low alloy standard austenitic stainless steel and heavy feed is recommended for processing. So the surface of the cold hardening can be cut in.

Hastelloy B 2 65288 Uns N10665 65289 Ni Mo Alloy

Feel free to contact us with all your questions


Company Contact:


  • Phone: 8602169925078

  • Address: 1355#,Chengbei road, Jiading District, Shanghai, Shanghai, China

  • Email: Email


Published date: October 18, 2012 -

  • Business Description: involved in international trade import export of goods, products, and services

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