- Joined
- Apr 6, 2008
- Messages
- 252
Yeah, I just received my ZDP Shallot in the mail today..............still looking for a ZDP Leek. I let one slip through my fingers a couple weeks back. Kicking myself for that.
-
The BladeForums.com 2024 Traditional Knife is ready to order! See this thread for details: https://www.bladeforums.com/threads/bladeforums-2024-traditional-knife.2003187/
Price is$300$250 ea (shipped within CONUS). If you live outside the US, I will contact you after your order for extra shipping charges.
Order here: https://www.bladeforums.com/help/2024-traditional/ - Order as many as you like, we have plenty.
What Hardness is KAI going to run the Maxamet in the zt0888?
- Thread starter Jestersinthemoon
- Start date
- Joined
- Oct 4, 2008
- Messages
- 4,647
Pics bro! We need pics!
- Joined
- Apr 6, 2008
- Messages
- 252
Beautiful blade.....
Super early lockup
Now I just need to find the ZDP Leek and S110V Shallot to complete my trio...............anybody offering one?
Steel130
Gold Member
- Joined
- Sep 17, 2010
- Messages
- 4,583
I know I heard it said that the Maxamet was so tough that Zero Tolerance had difficulties cutting it. I am assuming that was in the annealed state, however because of the composite blades they may have cut them after heat treat. ZDP-189 is pretty wear resistant. I am pretty sure though that steels like S110V,S125V, K390, K294, ect. are in a class of their own.
- Joined
- Apr 6, 2008
- Messages
- 252
A bit of info on Maxamet
Micro-Melt® Maxamet® alloy is a high alloy content super-hard high speed powder tool steel possessing properties intermediate between conventional high speed tool steels and cemented carbide. The high room temperature and hot hardness of this alloy allow it to be considered for use in applications where conventional tool steels do not hold up, such as in dry machining.
The balanced alloying additions allow the alloy to provide excellent wear resistance due to a high carbide volume, but to maintain good toughness at high hardness levels. In addition, the combination of high hardness, hot hardness, and high temperature stability make the alloy a candidate for applications in which tools are coated prior to service.
Applications
Micro-Melt Maxamet alloy may be considered for many types of tooling applications where either conventional high speed steels or cemented carbides are currently being used. Possible applications could include those where high speed steel is currently being used and an upgrade is desired but the switch to carbide is unattractive due to cost, tooling manufacture, toughness, or machine rigidity concerns; or applications where carbide is currently being used but is not cost-effective due to limited production runs or toughness/breakage problems.
Table 2 — Maxamet heat-treated hardness in HRC at various hardening temperatures
Tempering
Hardening temperature
temperature, °C (°F) 1149°C (2100°F) 1177°C (2150°F) 1204°C (2200°F) 1218°C (2225°F) 1227°C (2240°F)
538 (1000) 70.0 70.0 70.5 70.5 71.0
552 (1025) 69.0 69.5 70.0 70.0 70.5
566 (1050) — — 69.5 69.5 70.0
593 (1100) — — 67.5 67.5 68.5
Tempering practice 2h + 2h 2h + 2h 2h, refrigerate, 2h 2h, refrigerate, 2h 2h, refrigerate, 2h
Fig. 3 – This graph compares the wear resistance of Maxamet alloy with that of three other P/M
high speed steels at typical working hardness. Wear loss comparisons were made based on results
of the Dry Sand/Rubber Wheel Abrasion test, per ASTM G65, Method A. The highest bar shows
the most wear resistance and the shortest bar the least wear resistance. For further improved wear resistance, a CVD or PVD coating may also be applied. The M48 alloy is equivalent to CPM REX
76, and the M62 alloy is equivalent to CPM REX 20.
Micro-Melt® Maxamet®
According to Carpenter, its new Micro-Melt Maxamet alloy has consistently attained a room temperature hardness of HRC 70 minimum. This is distinctly above the maximum hardness achieved by conventional high speed steels, and approaches carbide hardness of HRC 75 and above, as converted from the HRA scale. With its improved hardness, Maxamet alloy may be considered by shops that need to produce parts faster in order to stay competitive. It has been specially formulated to approximate the performance of carbide, but at lower cost.
Read more: http://www.newmaterials.com/News_De..._by_powder_metallurgy_10210.asp#ixzz2LTj8tA3i
Intermediate alloy between conventional high speed steel and cemented carbide.
Typical Chemistry
• Carbon 2.15%
• Chromium 4.75%
• Vanadium 6.00%
• Tungsten 13.00%
• Cobalt 10.00%
• Sulfur 0.070%
Typical Hardness
• HRc 68.5-72
Micro-Melt® Maxamet® alloy is a high alloy content super-hard high speed powder tool steel possessing properties intermediate between conventional high speed tool steels and cemented carbide. The high room temperature and hot hardness of this alloy allow it to be considered for use in applications where conventional tool steels do not hold up, such as in dry machining.
The balanced alloying additions allow the alloy to provide excellent wear resistance due to a high carbide volume, but to maintain good toughness at high hardness levels. In addition, the combination of high hardness, hot hardness, and high temperature stability make the alloy a candidate for applications in which tools are coated prior to service.
Applications
Micro-Melt Maxamet alloy may be considered for many types of tooling applications where either conventional high speed steels or cemented carbides are currently being used. Possible applications could include those where high speed steel is currently being used and an upgrade is desired but the switch to carbide is unattractive due to cost, tooling manufacture, toughness, or machine rigidity concerns; or applications where carbide is currently being used but is not cost-effective due to limited production runs or toughness/breakage problems.
Table 2 — Maxamet heat-treated hardness in HRC at various hardening temperatures
Tempering
Hardening temperature
temperature, °C (°F) 1149°C (2100°F) 1177°C (2150°F) 1204°C (2200°F) 1218°C (2225°F) 1227°C (2240°F)
538 (1000) 70.0 70.0 70.5 70.5 71.0
552 (1025) 69.0 69.5 70.0 70.0 70.5
566 (1050) — — 69.5 69.5 70.0
593 (1100) — — 67.5 67.5 68.5
Tempering practice 2h + 2h 2h + 2h 2h, refrigerate, 2h 2h, refrigerate, 2h 2h, refrigerate, 2h
Fig. 3 – This graph compares the wear resistance of Maxamet alloy with that of three other P/M
high speed steels at typical working hardness. Wear loss comparisons were made based on results
of the Dry Sand/Rubber Wheel Abrasion test, per ASTM G65, Method A. The highest bar shows
the most wear resistance and the shortest bar the least wear resistance. For further improved wear resistance, a CVD or PVD coating may also be applied. The M48 alloy is equivalent to CPM REX
76, and the M62 alloy is equivalent to CPM REX 20.
Micro-Melt® Maxamet®
According to Carpenter, its new Micro-Melt Maxamet alloy has consistently attained a room temperature hardness of HRC 70 minimum. This is distinctly above the maximum hardness achieved by conventional high speed steels, and approaches carbide hardness of HRC 75 and above, as converted from the HRA scale. With its improved hardness, Maxamet alloy may be considered by shops that need to produce parts faster in order to stay competitive. It has been specially formulated to approximate the performance of carbide, but at lower cost.
Read more: http://www.newmaterials.com/News_De..._by_powder_metallurgy_10210.asp#ixzz2LTj8tA3i
Intermediate alloy between conventional high speed steel and cemented carbide.
Typical Chemistry
• Carbon 2.15%
• Chromium 4.75%
• Vanadium 6.00%
• Tungsten 13.00%
• Cobalt 10.00%
• Sulfur 0.070%
Typical Hardness
• HRc 68.5-72
- Joined
- Feb 15, 2010
- Messages
- 849
That is ridiculous!
- Joined
- Mar 16, 2011
- Messages
- 2,439
- Joined
- Apr 6, 2008
- Messages
- 252
Actually grabbed a SECOND ZDP-189 Shallot today.......should be coming in on the same day as my Damascus Leek and Damascus Shallot.......hell yeah.
- Joined
- Apr 6, 2008
- Messages
- 252
I run my custom AUS 8 higher than that..... :yawn:
Uh-huh..............and I made a billet of Damascus out of 500 gas station tacti-stabby cheapos, wrapped a leaf spring around them and came out with a marvelous San-Mai with a core stronger and a blade more durable than ZDP-189 sheathed in CPM-M4.
- Joined
- Mar 27, 2010
- Messages
- 4,992
This is MADNESS!