Use or grade of this steel?
Use or grade of this steel?
(OP)
Hi everybody.
Have you used this steel or do you know which grade is or typical use?
Yes, It's look like AISI Serie 61xx, Cr-V Steel (like the legend in some handtool), but i'm not sure about the Moly content in this serie.
C = 0.22, Mn = 1.11, Si = 0.29, P = 0.011, S = 0.003, Cr = 0.88, V = 0.13, Cu = 0.16 AND Mo = 0.52
Thanks a lot.
Have you used this steel or do you know which grade is or typical use?
Yes, It's look like AISI Serie 61xx, Cr-V Steel (like the legend in some handtool), but i'm not sure about the Moly content in this serie.
C = 0.22, Mn = 1.11, Si = 0.29, P = 0.011, S = 0.003, Cr = 0.88, V = 0.13, Cu = 0.16 AND Mo = 0.52
Thanks a lot.





RE: Use or grade of this steel?
RE: Use or grade of this steel?
RE: Use or grade of this steel?
What is the product form?
"Everyone is entitled to their own opinions, but they are not entitled to their own facts."
RE: Use or grade of this steel?
The original shape of the product is unknown, I only have fragments of damaged and irregular geometry that was found in a very unusual location and in the vicinity there are from heavy machinery, pipes and various irons to hand tools.
in principle I also considered it to be some degree of a Cr-Mo steel, however I noticed that the V is high and looks more like a Cr-V steel, close to the AISI 6120, although Mo is not considered in this grade.
RE: Use or grade of this steel?
"Everyone is entitled to their own opinions, but they are not entitled to their own facts."
RE: Use or grade of this steel?
Yes, hand tool is my first suspicion, but I would like to back this conjecture with technical information. Specification sheets, literature, analysis of chemical composition that you have made to popular hand tools or perhaps not a hand tool, but a component that has that composition.
RE: Use or grade of this steel?
The other option according to be would be resource sites e.g.: matweb: http://www.matweb.com/search/DataSheet.aspx?MatGUI....
AISI steels comes in lot of forms and shapes, many of them are not used in BPV codes, hence there are possibilities of getting steels with Higher "C Content" as well as with odd/uncommon compositions. If the component is a tool steel "C" may be high as compared to ASME/ASTM grades.
Thanks.
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
Ontario,Canada.
ca.linkedin.com/pub/pradip-goswami/5/985/299
RE: Use or grade of this steel?
Exact compositional correspondence is not necessary. Final mechanical properties are where the rubber meets the road, so to speak.
What you want to do here is find an AISI grade with reasonably similar overall composition and very similar carbon, such that the hardenability properties are similar. Hardenability is the primary distinguishing characteristic of the low alloy AISI steels. Any proper metallurgist should be able to pull a few suitable candidates from the extensive list of AISI steels.
"Everyone is entitled to their own opinions, but they are not entitled to their own facts."
RE: Use or grade of this steel?
[ol 1]
OES--which detects all alloying elements, including "C",
XRF-Which detects all other alloying elements , except, C, S, P and a few other lighter elements depending on the equipment capability. In fact all XRF based equipment used for PMI are equipped with an inbuilt data base, so as to compare and provide results on the spot.That'd why such equipments are polpular for materials sorting also.
These are the only convenient ways to start reverse engineering on any unknown material.
The other option is to go back to the OEM and find out the grade procured or used for manufacturing and go from there.However experiences may say depending on the country of origin, the OEM is could beat loss about the grades used in their product. In those cases end user has to dig the dirt to gather information.
For Marriola V: If you're convinced about this steel being AISI 6120 or equivalent, please do a worldwide search for this grade.In fact if you know the country of origin of the product, searching the correct grade would be easy, if you do not have access to PMI equiments.
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
Ontario,Canada.
ca.linkedin.com/pub/pradip-goswami/5/985/299
RE: Use or grade of this steel?
These will detect elements down to C with good precision
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P.E. Metallurgy, Plymouth Tube
RE: Use or grade of this steel?
I am familiar with OES, and it is a major and expensive undertaking in the field. It is essentially full chemical analysis, so it a little misleading to describe it as PMI.
I'm certain the sample of material under discussion here could be spark tested in a lab, for under U$80.
"Everyone is entitled to their own opinions, but they are not entitled to their own facts."