What material is "10B21" ? 1

[Jonathan]

Does anyone know what material "10B21" is and what a common cross reference may be ?

Thanks

 

[AJohnson]

See SNo 19 at this link:

http://www.steelexchangeindia.com/insidesteel/utilities/specforironst.htm

Andy

 

[rustbuster1]

A carbon steel designated xxBxx is a Boron containing version of the regular steel, such as 1018 becomes 10B18 when Boron is added. Boron is added to improve hardenability and tweak oproperties.

 

[Jonathan]

Thank you everyone for your help. . .

Best regards
Jonathan

 

[anupk]

Dear Jonathan,

10B21 is a low carbon "Boron" bearing steel used for making cold headed bolts [Cold heading Quality].

Anup Kumar

 

[kman4x4]

Can anyone give me an idea on the machinability of 10B21? How does the Boron effect the machinability of 1021.

 

[mcguire]

Boron would have no effect on machining, assuming you're machining the annealed part. Boron only affects the depth of hardening during quench.