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Nickel Alloy/Titanium

Below you can find our current stock of Alloy B2 (Hastelloy B2). We Specialise in Round Bars, Hex Bars, Hex Bolts, Nuts, Washers, Wire Rods and Flanges.


ALLOY B2 is a corrosion-resistant, solid-solution Ni-Mo alloy.

  • controlled chemistry with a minimum iron and chromium content to retard the formation of ordered -phase Ni4Mo
  • significant corrosion resistance to reducing environments
  • excellent resistance to medium-concentrated sulphuric acid and a number of non-oxidizing acids
  • good resistance to chloride-induced stress-corrosion cracking (SCC)
  • good resistance to a wide range of organic acids.


Stock Form and Sizes

Round BarSpecification: ASTM B335/B564¦@ASME SB335/SB564¦
¦B564/SB564 Apply to Forged Bar Only
1.2 1.6 2 2.6 3 3.5 4 4.4 5 5.3 6 7.1 8 8.95 10
12 13 16 18 19 20 22 24 25 28 30 32 35 36 38
š š š š   š š   š š š   š    
40 42 45 50 55 60 65 70 75 80 85 90 95 100 105
š   š š š š š š   š   š   š  
110 115 120 125 130 135 140 145 150 155 160 165 170 180 190
š   š   š
      š   š     š  
200 210 220 230 250 280 300                
š     š š                    

¦@Rolling Thread sizes available in C276(M4 to M10)

Sourcable Ex-Stock Material for Other Forms from Japanese Distributor

Plate Pipe/Tube Welding
Rod & Wire
Min Max
2`20mm N/A ™ N/A

¦@¢EEELimited Sizes Only@™EEEPlease enquire

Corrosion resistance

The extremely low carbon and silicon content of Alloy B2 reduces precipitation of carbides and other phases in the heat-affected zone of welds and ensures adequate corrosion resistance even in the welded condition.
Alloy B2 exhibits excellent corrosion resistance in aggressive reducing media such as hydrochloric acid in a wide range of temperatures and concentrations, as well as in medium-concentrated sulphuric acid even with limited chloride contamination. It can also be used in acetic and phosphoric acids. Optimum corrosion resistance can be obtained only if the material is in the correct metallurgical condition and exibits a clean structure.


ALLOYB2is used in a wide range of applications in the chemical process industry, especially for processes involving
sulphuric, hydrochloric, phosphoric and acetic acid.

Chemical composition

  Ni Cr Fe C Mn Si Cu Mo Co P S
min(%) bal. 0.4 1.6         26.0      
max(%) 1.0 2.0 0.01 1.0 0.08 0.5 30.0 1.0 0.02 0.010

Mechanical propertiesiRound Barj

  Condition Yield Strength(Mpa) Tensile Strength(Mpa) Elongation(%) Hardness(HB)
ASTM Min Value Solution Annealed 350 760 40  
Typical Values at RT Solution Annealed 411 892 60 185

International Specification Comparison chart

  Material Round Bar Plate Pipe
Seamless Welded
B335 B333 B622 B619/B626
ASME SB335 SB333 SB622 SB619/SB626
JIS NW0665 H4553 H4551 H4552  
DIN 2.4617 17752 17750 17751 17751
All the information on this website is published in good faith and for general information purpose only and not for technical design purposes. We do not make any warranties about the completeness, reliability and accuracy of this information. Any action you take upon the information on our website is strictly at your own risk. and we will not be liable for any losses and damages in connection with the use of our website.

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