5155 F ???

D

Dt_Trainer

Joined
Nov 8, 1999
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103
Does anyone have any experience with 5155 F Steel.

I have only been able to find chemical analysis of 5155 H.

I have a sample piece that I heated to non magnetic tonight and triple quenched in room temperature water.

It did not get extremely hard however. It did get hard and when broken I found the grain structure to be almost the same as my 1095 with somewhat larger grain. I filed it before and after heat treating it and found a sharp file still bite into it somewhat easy.

On the analysis below it states that it has slightly less carbon than 5160 around .51 to .56. However the chemical analysis done by the company that is selling it rated the carbon at only .38 to .40. Is this due to the F designator??

If anyone could help I would appreciate it.

Thanks,

Jim Bunker


http://www.farm.net/~mason/materials/steel-alloys.html
 
I don't see a designator on the site you link to.

I tried to find the 5155F too and had no luck. I did find 5155H. If all else fails you can send me a small sample and I can Rockwell it for you. If you prefer I can also heat treat the sample and Rockwell. For now though I would have to accept what the vendor tells me about the carbon content, except that is not what 5155H specs out at.

RL
 
5155 and 5155H are AISI designations with .55 % carbon. I don't know what 5155F is unless it's some foreign designation. That you could bite into it with the file would seem to indicate that it is .40% C.That would mean an AISI grade of 5140.
 
Thanks for then info thus far gentlemen.

Rlinger I may take you up on the offer to check out a sample I will email you if I need to go that route thanks for offering.

Mete I agree when I was looking at the tables that is what I thought too, it just doesnt seem to be the right carbon content for the 5155. I will check back on the test done and try to get a copy so I can compare all of the properties.

If this stuff does indeed have only .4 carbon will it ever get hard enough to make a good blade?? Can I quench it in Brine or other medium to get a better hardness??

Jim
 
Mete, does that numbering scheme work the same for the 10xx steels ? Would, as example, 1095 have .95 % carbon ?

RL
 
I checked back with my supplier and the steel is 5155 HFG.

I check there chemical analysis myself and got a copy. I have very little faith in there analysis of the carbon content as the first reading was .348 and the second test reading was .179 for an average of .263. bellow are the total test results.

C MN P S CU CR MO CO AL
.348 .797 .009 0.017 .178 .638 .32 .009 .007
.179 .799 .009 0.017 .178 .641 .32 .008 .002
.263 .798 .009 .017 .178 .639 .32 .008 .005


PD SI V
0.004 0.218 0.018
0.001 0.215 0.017
0.003 0.217 0.018

The company selling this metal deals in scrap and has gotten this load in and the bands had a tag stating the steel was 5155 HFG. The company ususally sells non ferrous metals and my contact there had a piece tested but states he is not sure how good the test was.

I really wonder if there is in deed aluminum in this steel too. Since they test so much non ferros metals I am wondering if the test chamber was not contaminated from prior tests.

The good news is that the stuff forges great and a local black smith and I made a arrow head out of the rest of the test bar and I will heat treat it and quench it as I would 5160 and I will get back to you guys thanks again for the info.

Mete can you give me any idea looking at the analysis if you think it is right??

Thanks guys,

Jim Bunker
 
Forget that steel Jim for any knife blades you plan to make that might ever be used. Too much hard work making a knife not to use the right stuff for it. I don't think you'll be happy with that steel.
 
Can't figure out what that might be, I also wonder about the analysis.Forget it.
 
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