4130 For a Thrower?

P.Brewster

P.Brewster

Joined
Jul 25, 2007
Messages
1,380
I'm reproducing a design (with permission) from Japan for some throwing stars. The print calls for 3mm 1045.

Obviously I'll use 1/8" thick for the 3mm, but I'm having a hard time with the material because I don't want to spend $5+ per pound for star steel. (BTW, McMaster-Carr's price went up about $0.70 per pound in the last 2 weeks for their 1075 and 1095).

Anyway, I can get 4130 for $3.XX per pound, which is good enough. I can't seem to find any specific info about what hardness I might see.

I did find info for 4140 -

http://www.diehlsteel.com/4140anld.aspx

says its RC 60 as quenched (of course, the 4140 has 0.10% more carbon).

Anyway, considering that an RC of 48 or so would be fine, would 4130 do the trick? Can I flame-harden the tips, or does it need a controlled soak?

THANK YOU
 
I know nothing about throwing stars but if you want only 48 HRc 4130 will do it. It can be flame hardened .
 
Good enough; thank you.

It would seem like a waste of some perfectly good steel to use 1075 or 1095 on a star.
 
Patriqq - how bout using used-up mower blades. I've made great throwing knives and spikes out of them. And if you quench em in superquench, most of them are made of steel that will get plenty hard for making a variety of throwables. Since they're of basically no use for knife blades when they're service life is expended, making throwables out of them is also a cool way to recycle:cool:
 
You must log in or register to reply here.
Back
Top