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Thread bar

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B7.B7M Stud
Category:Thread bar
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Alloy-steel bolt for high temperature and/or high pressure applications
Material : alloy steel
Mechanical properties : ASTM A193/A193M-10a
Thread as per ASME B1.1-02
Diameter range : 1/4"-3.1/2" ( M6-M90 )
Length range : 1/2"-20" ( 10-5000mm )
Finish : Black oxide . HDG .MZP .Dacromet .
Package : small box or bag . master carton bulk .
          
B7 and B7M shall be heat treated by quenching in a liquid medium and tempering
For B7M fasteners ,the final heat treatment ,which may be the tempering operation
if conducted at 1150℉[620℃] minimum ,shall be done after all maching and forming operations ,
including thread rolling and any type of cutting ,surface proparation for hardness testing,
nondestructive evaluation,or ultrasonic bolt tesioning is permitted.
          
Material grade B16 shall be heated to a temperature range from 1700 to 1750℉[925-955℃]
and oil quenched .
          
With ASTM A194/A194M-2H Heavy hex nut for high temperature and/or high pressure applications
          
Chemical composition requirements

Mechanical properties requirements - inch products

Mechanical properties requirements - metric products


 

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