Marlin Barrel Steel
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Marlin Barrel Steel
Does anyone know what it's makeup is? Did their "Special Smokeless Steel" formula stay the same? From folks who have reamed the chambers of both the 336 Marlin and 94 Winchesters, they seem to report that the Winchester chrome moly steel is good bit harder to ream out. Always been curious as to what Marlin uses(ed).
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Re: Marlin Barrel Steel
What years were the Winchesters in question made? When Winchester went to hammer forged barrels it resulted in tougher harder steel due to the forging process. I believe many reborers will tell you that forged barrel are harder to drill, ream, rifle.
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Re: Marlin Barrel Steel
I recently read an old 1983 American Rifleman article about a factory tour of the old Marlin plant and it was stated there that Marlin used 4140 steel for their centerfire barrels.
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Re: Marlin Barrel Steel
Thank you gents. Yeah I was talking about modern rifles. I assume Winchester steel has been the same since the 30's. So, both would be 4140 then but only the Winchester is "chrome moly?". I could see how the hammer forging would also help it out. I doubt there is little practical difference between the two, especially with sane loads and careful cleaning practices.
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Re: Marlin Barrel Steel
4140 is chromoly steel.
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Re: Marlin Barrel Steel
Very interesting. So, if both the same steel formula then the hammer forgoing process makes the difference in terms of how tough it is to drill out or machine? Slim Iorg noted when taking both a Marlin 336 and Win. 94 from 30/30 to the AI that it was much more difficult to ream out the Win and the steel came out fine, whereas the Marlin steel was more coarse and easier to drill. Hope I remember that correctly. Somehow, Ruger is also able to obtain super hardness with its investment castings and not the hammer forge method that Win. used.
But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Romans 5:8
Re: Marlin Barrel Steel
Chris,
That is known as "work" hardening.
Weaver scopes were hammer forged over a mandrel.
That is known as "work" hardening.
Weaver scopes were hammer forged over a mandrel.
Re: Marlin Barrel Steel
Hey you learn something everyday....thank you Mescalero and all here. So, work hardened steel should make it less susceptible to wear from contact? But does it also improve the strength of the steel as related to outward pressure generated by smokeless centerfire? Sometimes, as in Muzzleloaders, harder isn't always better.
But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Romans 5:8
Re: Marlin Barrel Steel
Yes,
but not demonstrably, like hardening to a " C " scale number.
Hammer forging introduces friction, thus heat, re-alighning the molecular structure at that level as opposed to the way it came from the melt.
but not demonstrably, like hardening to a " C " scale number.
Hammer forging introduces friction, thus heat, re-alighning the molecular structure at that level as opposed to the way it came from the melt.
Re: Marlin Barrel Steel
OK....makes sense to me. Thank you for explaining that Mescalero.
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Re: Marlin Barrel Steel
Does it realign the molecular structure throughout or on the surfaces?
Re: Marlin Barrel Steel
In scope tubes because of the thinner wall, all the way through,
I am not sure about rifle barrels because they have a thicker wall area, but the rifling is made on the mandrel so it must have penetrated that far.
I am not sure about rifle barrels because they have a thicker wall area, but the rifling is made on the mandrel so it must have penetrated that far.
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Re: Marlin Barrel Steel
Ruger's investment-cast parts are also heat-treated and are mostly SAE 4140 or 4150 (chrome moly) steel. The heat treatment hardens the parts all the way through, as opposed to case hardening, which leaves a glass-hard "case" over a soft, ductile core...
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Re: Marlin Barrel Steel
Ruger steel is amazing. I have toted and shot my Ruger Super Blackhawk a good bit since 1989(lots of factory jacketed early on)and except for the cylinder drag marks it still looks new.
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Re: Marlin Barrel Steel
As I understand it Ruger uses Carpenter steel in their stainless guns. I believe it has an elastic property. Think it was a Marlin engineer on a forum talking about it.
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Re: Marlin Barrel Steel
As important to machinability as the type of steel is the harding & tempering of it. From what I gather you dont want a very hard steel for a barrel, you want a tough one.
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Re: Marlin Barrel Steel
Most barrel makers use steel in a "normalized" condition -- heated to approx 700°F, and air cooled.. That relieves internal stresses from the rolling process..
The "Carpenter" steel, mentioned above, is used by Ruger for their .454 and .480 Cylinders, and has particular properties that make it well adapted to that use.. I have some articles regarding it, buried in my considerable stack of stuff..
The "Carpenter" steel, mentioned above, is used by Ruger for their .454 and .480 Cylinders, and has particular properties that make it well adapted to that use.. I have some articles regarding it, buried in my considerable stack of stuff..
Regards
Buck
Life has a way of making the foreseeable that which never happens, and the unforeseeable, that which your life becomes...
Buck
Life has a way of making the foreseeable that which never happens, and the unforeseeable, that which your life becomes...
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Re: Marlin Barrel Steel
Leverdude - you're back - where ya been?
Re: Marlin Barrel Steel
I pop in every once in awhile OS but havent had the time to participate as much as before. Havent been able to shoot or tinker as much either. Its been a little harder to get by lately than I'd got accustomed to. But fear not, I'm still here.
Re: Marlin Barrel Steel
Good to hear Leverdude! Thanks one and all for your input. Don't know why steel has always interested me, especially as related to how it acts as gunbarrels/parts, but it does.Leverdude wrote:I pop in every once in awhile OS but havent had the time to participate as much as before. Havent been able to shoot or tinker as much either. Its been a little harder to get by lately than I'd got accustomed to. But fear not, I'm still here.
But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Romans 5:8
Re: Marlin Barrel Steel
It's a great subject, when we hook up; we will have something to talk about.
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Re: Marlin Barrel Steel
Hi Ken!Leverdude wrote:I pop in every once in awhile OS but havent had the time to participate as much as before. Havent been able to shoot or tinker as much either. Its been a little harder to get by lately than I'd got accustomed to. But fear not, I'm still here.
"He has erected a multitude of New Offices, and sent hither swarms of Officers to harass our people and eat out their substance." Declaration of Independance, July 4, 1776
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Re: Marlin Barrel Steel
Leverdude, come back - always interesting.
Re: Marlin Barrel Steel
Look forward to that very much Mescalero!Mescalero wrote:It's a great subject, when we hook up; we will have something to talk about.
But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Romans 5:8