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Hastelloy Alloy B-3

Hastelloy Alloy B-3
Product Details

Hastelloy B-3


Chemical Composition Wt.%

alloy

%

Ni

Cr

Fe

Mo

W

Cu

Co

Al

Ti

Mn

C

Si

S

P

V


B-3

min

65.0

1.0

1.0

27.0












max


3.0

3.0

32.0

3.0

0.2

3.0

0.5

0.2

3.0

0.01

0.1

0.01

0.03

0.20


Physical Constants

g/cm³

9.22

Melting point℃

1370-1418℃

The minimum mechanical properties of the alloy at room temperature

Typical mechanical properties

Test ℃

tensile strength
Rm N/mm2

Yield Strength
RP0.2N/mm2

ElongationA5 %

Annealing treatment

Room temperature

820

420

53.4

Process
performance and requirement
sharacters

1, the alloy has good malleability, forging heating temperature 1140 ℃, final forging 900 ℃
2, the average grain size of the alloy and forging deformation degree, the final forging temperature is closely related.
3, the alloy has a satisfactory welding performance. The alloy is soldered in the solution state and the aging is performed after welding.

Perform standard

product

ASTM standard

product

ASTM standard

Bar

B335

Pipe welding

B626

Sheet, with

B333

Flange body

B564

Seamless pipe

B622

Forgings

B564

Welded pipe

B619



Corrosion Resistance

Nickel-molybdenum alloy Hastelloy B-3 has very low carbon and low silicon content and lowers the precipitation of carbon and other impurities in the HAZ, so the weld is also corrosion-resistant. Alloy Hastelloy B-2 has good corrosion resistance in reducing media, such as hydrochloric acid solutions of various temperatures and concentrations. In the medium concentration of sulfuric acid solution (or contain a certain amount of chloride ion) also has good corrosion resistance. At the same time can also be used for acetic acid and phosphate environment. Alloy materials have the best corrosion resistance only in the proper metallurgical state and pure crystalline structure.

Applications

Hastelloy B-3 alloy is suitable for all uses of previous B-2 alloys. Like B-2 alloys, B-3 is not recommended for use in the presence of trivalent and cupric salts as these salts will quickly Cause corrosion damage.When hydrochloric acid comes into contact with iron and copper, it will react with it to generate ferric and cupric salts.

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