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Posted: 1/31/2006 7:08:25 AM EDT
How much heat (temperature specific) can be applied to a superlight carbine barrel before it damages it's integrity? I ask because I used a cheap-ass nylon bench bag and it melted all over my barrel. I understand the melting point of nylon to be around 150 deg. F and I plan on using an electric heat gun to cook-off the nylon residue? The lowest heat setting on the gun is 650 deg. F. Any other advice on nylon removal methods is also welcome.

thanks
Link Posted: 1/31/2006 7:17:36 AM EDT
Yeah, you can get the barrel up to 1100 deg F without worry, beyond that and you may have issues.

I'd suggest reading: "Fire to Destruction Test of 5.56 M4A1 Carbine and M16A2 Rifle Barrels"
Link Posted: 1/31/2006 7:23:20 AM EDT

Originally Posted By Forest:
Yeah, you can get the barrel up to 1100 deg F without worry, beyond that and you may have issues.

I'd suggest reading: "Fire to Destruction Test of 5.56 M4A1 Carbine and M16A2 Rifle Barrels"



Thanks Forest......greatly appreciated.
Link Posted: 1/31/2006 3:14:00 PM EDT
Link Posted: 1/31/2006 11:49:40 PM EDT
Once again, Armalite's Tech Notes to the rescue...

www.armalite.com/library/techNotes/tnote48.htm
Link Posted: 2/1/2006 6:36:11 AM EDT

Originally Posted By A_Free_Man:
Once again, Armalite's Tech Notes to the rescue...

www.armalite.com/library/techNotes/tnote48.htm



I'm sure Armalite is commenting on THEIR barrels which use 4140 steel. My data comes from the Army's testing of their barrels (Colt and/or FN) which use 4150 (which can take higher temps before failure).

So if you're not using a Colt or Bushy LW then follow Armalite's suggestion.
Link Posted: 2/2/2006 9:23:38 AM EDT
Link Posted: 2/2/2006 11:07:43 AM EDT
A link to the PDF was posted here sometime in 2005. I have a copy of the 1.7meg PDF if your e-mail can handle it.
Link Posted: 2/2/2006 11:19:38 AM EDT
Link Posted: 2/2/2006 11:24:26 AM EDT
87 degrees and it's RUINED!
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