Talk:High-speed steel

message: Reference 4 to "taylor-white process" in Websters Revised Unabridged Dictionary, contains nothing pertaining to the subject of high-speed steel.
Rich Schroeppel. 166.70.232.207 (talk) 18:49, 15 February 2021 (UTC)
thread_title:  Bad reference 

message: This whole article needs thorough revision by a competent copy editor.  — Preceding unsigned comment added by 2.101.17.155 (talk) 07:49, 4 May 2015 (UTC)
thread_title:  Poor English 

message: so the contrast with carbide tools is inaccurate.  — Preceding unsigned comment added by 2.101.17.155 (talk) 07:44, 4 May 2015 (UTC)
thread_title:  ALL cutting involves SOME shearing 

message: What about something on the heat treatment of high speed steel.
How is it softened?
How is it hardened?
89.194.51.33 (talk) 04:04, 9 February 2011 (UTC)
replies: text: Check out heat treatment Wizard191 (talk) 15:18, 9 February 2011 (UTC)

text: It's all in heat treatment. All steels can be hardened via quenching and tempering and all steels can be softened via annealing. Wizard191 (talk) 16:30, 16 February 2011 (UTC)
replies: text:  Qualification of "all steels" above: low-carbon steels of only .10 to .20 C do not harden very much, unless carbon is added to the outer surface via carburizing case-hardening methods. The core remains pretty soft no matter what heating and quenching the piece is given. But Wizard's point still stands: heat treatment is what does the magic. — ¾-10 02:58, 23 February 2012 (UTC)
thread_title:  Heat Treatment 

message: Military specifications for the bolt of the M16 rifle require Carpenter 158 steel, also known as AISI T6 high speed tool steel.  Is this worthy of mention, or is it trivia?  — Preceding unsigned comment added by 69.41.40.24 (talk) 17:14, 21 February 2012 (UTC)
replies: text: I would say it could be fine under "applications" as one example of a general sentence, like this: "Occasionally HSS is specified as the workpiece material for machined parts. For example, [state the example]." But I don't think Carpenter 158 is actually HSS—I think it's non-HSS tool steel. Carpenter's page for it says "(AISI Type P6) (UNS T51606)" (note P vs T), and googling supports that it's tool steel and favored for making molds; but its carbon content (.10 C) and alloy content (0.50 Mn, 0.30 Si, 1.50 Cr, 3.50 Ni, Bal. Fe, per the Carpenter page) are too low to count it among HSSs, as far as I can figure. The only hardening it would take would be case hardening with carbon added via carburization; the .10 C would not allow through-hardening. Any metallurgists reading this page? — ¾-10 02:48, 23 February 2012 (UTC)
replies: text:  I don't know if Carpenter No. 158 is used in the M16 or not, but I do know it is not a high-speed steel.  It is a mold steel as indicated by the "P" in the P6 designation.  The high nickel content gives it some reasonable depth of hardening, but as you said, it needs to be carburized to attain a higher hardness for use.  I am a metallurgist and specifically a metallurgist working for a steel company that makes tool steels and high-speed steels.  The high-speed steel article needs some work.  I did correct some blatant errors, but if I have time I'll make some more improvements.  — Preceding unsigned comment added by 50.73.176.161 (talk) 18:22, 30 March 2012 (UTC)
thread_title:  a possibly noteworthy application 

message: The terminology used assumes that the reader has a previous understanding of metallurgical processes. Oceanic84 (talk) 22:05, 2 October 2022 (UTC)
thread_title:  Presumptions in article 

message: There are a lot of words in this section, but little actual content about HSS. It relies on a single primary source that describes a fringe process that doesn't seem to be used industrially. Thinking of cutting. Uhoj (talk) 13:01, 15 March 2024 (UTC)
thread_title:  Surface modification