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This is the first time I've used RR spikes, but practice is practice. RR spikes have somewhere between .30 and .40 carbon content, so it's about average for a knife.
Reply:Very nice, my only comment would be for the next turn the blade another 90 degrees so the railroad spike head is facing down like the knife blade. I have had a few rail road spike knives before and they do very well at keeping a edge. Good job
Reply:From what I can gather, spikes marked "HC" are nowhere near high carbon. According to A.R.E.A. specifications:Page 5-2-3: Specifications for high carbon steel track spikes 1968. Carbon not greater than 0.30%, nor greater than 0.20% copper. Page 5-2-4. Section 6a. Bending properties: The body of a full size finished spike shall stand being bent cold through 120 degrees around a pin, the diameter of which is not greater than the thickness of the spike without cracking on the outside portion of the bent portion. Page 5-2-5 Section 11. Marking: A letter or brand indicating manufacturer and also the letters "HC" indicating high carbon, shall be pressed on the head of each spike while it is being formed. When copper is specified, the letters "CU" shall be added. Now there is an ASTM spec as well. Not sure about it, but I did find this:Track Spikes ASTM A65Grade 1: C= .12 minGrade 2 (HC):C= .3 min."USMCPOP" First-born son: KIA Iraq 1/26/05Syncrowave 250 w/ Coolmate 3Dialarc 250, Idealarc 250SP-175 +Firepower TIG 160S (gave the TA 161 STL to the son)Lincwelder AC180C (1952)Victor & Smith O/A torchesMiller spot welder
Reply:Originally Posted by VydunasThis is the first time I've used RR spikes, but practice is practice. RR spikes have somewhere between .30 and .40 carbon content, so it's about average for a knife.
Reply:Funny thing, earlier today I was talking to a friend who just retired from Railroad after 45 years, been at it since he was 18. The spikes are forged steel, but not too much carbon, they don't want them to crack/break....and....the Railroad doesn't usually go after you for it, but possession of railroad property is a Serious crime, Federal actually....but for a few spikes they kinda' look the other way. Not so for the long pieces of track, 30+ pounds a foot of manganese steel, grand theft.. At my last job, quite a bit of track laying around behind our building as the SP guys were removing some non-used spurs, a guy went out there and cut up a bunch for making 'exercise weights' and anvils to sell on E-bay, Sheriffs came to the shop and arrested him. I never saw the guy again...Dougspair |
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发表于 2021-8-31 22:52:24