ASTM A7, A30, A70

[Rubje]

Hello,

I'm having a very hard time finding the chemical composition requirements for these 3 obsolete material specs.

Does anyone have a source or know the answer? thanks

 

[Dhurjati Sen]

I googled to get A7. Attaching it with the post.

Do the same for the rest.

DHURJATI SEN
Kolkata, India