In the following forms:


Buttweld Fitting

Round,Square,flat bars,rods


Flanges & Other kinds of forgings products


Nickel-Molybdenum UNS N10629,Alloy B4,hastelloy B-4,DIN 2.4600

Chemical Composition:

Ni Cr Iron Mn Al  Cu Si     max S    max Mo  P       max Co 
remainder 0.5-1.5 1.0-6.0 1.50 0.1-0.5 0.010 0.50 0.05 0.010 26.0-30.0 0.04 2.5


Mechanical Properties:

material Tensile Strength,Min PSI (MPa) Yield Strength (0.2% offset) Min(Mpa) Elongation in 2 in. or 50mm or 4D,Min.,%
N10629 11000(760) 51000(350) 40


Standards :

Seamless Tubing &/or Pipe Welded Tubing Welded Pipe Buttweld fitting Plate/Sheet/Strip Bar Forging and Forging stock
 SB-622 SB-626 SB-619 SB-366 SB-333 SB-335,SB-564,SB462,SB472



Early published work about alloys in the nickel-molybdenum system (namely, alloys B [UNS N10001] and B-2 [UNS N10665]) is reviewed. Results of several recent studies to prevent thermomechanical cracking during fabrication of components and stress corrosion cracking during service for alloy B-2 are presented. Data for a new alloy, UNS N10629, which has better alloy composition control than alloy B-2, also are given