Z-Max mule!

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Josh Crutchley
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Z-Max mule!

#1

Post by Josh Crutchley »

Who's excited for the new Z-Max mule in Reveal 7?
Z-Max
Carbon: 2.00
Chromium: 4.00
Vanadium: 5.00
Molybdenum: 5.00
Tungsten: 10.00
Cobalt: 9.00
Sumdumguy
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Re: Z-Max mule!

#2

Post by Sumdumguy »

Jeez! Another one I want and I'm still waiting on SPY27...

This reveal looked slightly expensive for me.
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Furious_George
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Re: Z-Max mule!

#3

Post by Furious_George »

Count me in! Absolute beast mode.
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Josh Crutchley
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Re: Z-Max mule!

#4

Post by Josh Crutchley »

Sumdumguy wrote:
Tue Jan 19, 2021 12:30 pm
Jeez! Another one I want and I'm still waiting on SPY27...

This reveal looked slightly expensive for me.
I'm still wondering what MT30 will be. Sal has talked about protos in Rex-121, Vanax, and a 18% tungsten steel. The 18%w steel might be from ZAPP they seem to make a few types.
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Re: Z-Max mule!

#5

Post by Furious_George »

Super excited for this one! Steel will be beast mode.
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bearfacedkiller
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Re: Z-Max mule!

#6

Post by bearfacedkiller »

I’m in!!!
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Cl1ff
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Re: Z-Max mule!

#7

Post by Cl1ff »

I think it’s interesting, but I’m not very familiar with the steel.
rex121 is the king of steel, but nature’s teeth have been cutting for hundreds of millions of years and counting :cool:
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Re: Z-Max mule!

#8

Post by JRinFL »

Cl1ff wrote:
Tue Jan 19, 2021 1:11 pm
I think it’s interesting, but I’m not very familiar with the steel.
Isn't it Zapp's version of Cru-wear or PD1?

Edit: I see, it is NOT the same. I was thinking of Z-wear. Sorry.
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Josh Crutchley
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Re: Z-Max mule!

#9

Post by Josh Crutchley »

JRinFL wrote:
Tue Jan 19, 2021 1:14 pm
Cl1ff wrote:
Tue Jan 19, 2021 1:11 pm
I think it’s interesting, but I’m not very familiar with the steel.
Isn't it Zapp's version of Cru-wear or PD1?

Edit: I see, it is NOT the same. I was thinking of Z-wear. Sorry.
Its closer to Maxamet than Cruwear.
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Re: Z-Max mule!

#10

Post by TomAiello »

I'll be at the computer refreshing like a maniac when these drop. :)
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Re: Z-Max mule!

#11

Post by legOFwhat? »

TomAiello wrote:
Tue Jan 19, 2021 1:36 pm
I'll be at the computer refreshing like a maniac when these drop. :)
Ditto! I heard the alert on my phone and did a little panic :o
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Josh Crutchley
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Re: Z-Max mule!

#12

Post by Josh Crutchley »

Here's a comparison between some steels close in composition from AKS.
Screenshot_2021-01-19-14-34-30_2.png
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VooDooChild
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Re: Z-Max mule!

#13

Post by VooDooChild »

Im very interested in the steel. Im not really a fan of the mule design but if the price is right I might have to get one.
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sal
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Re: Z-Max mule!

#14

Post by sal »

Hi Furious_George,

Welcome to our forum.

sal
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Re: Z-Max mule!

#15

Post by JuPaul »

Joshcrutchley1 wrote:
Tue Jan 19, 2021 1:59 pm
Here's a comparison between some steels close in composition from AKS.Screenshot_2021-01-19-14-34-30_2.png
So basically it's very similar to Maxamet, plus 5% Moly. So how does that affect performance?
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Re: Z-Max mule!

#16

Post by kobold »

Cl1ff wrote:
Tue Jan 19, 2021 1:11 pm
I think it’s interesting, but I’m not very familiar with the steel.
I think it is like a toned down Maxamet.
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Re: Z-Max mule!

#17

Post by soulspy »

I looked up the manufacturers spec sheet...

https://www.zapp.com/fileadmin/_documen ... eet-US.pdf

...Saw mention of underhardening to improve toughness. I wonder what hardness Spyderco will aim for?
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TenGrainBread
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Re: Z-Max mule!

#18

Post by TenGrainBread »

KnifeSteelNerds did a variety of testing and graphing on 48 steels, including Z-Max (which is chemically equivalent to Rex-86): https://knifesteelnerds.com/2020/05/01/ ... fe-steels/

Not to simplify the results too much, but Larrin assumed a similar toughness to Maxamet based on composition. As to edge retention (measured via CATRA/TCC), it classes slightly above 15V and somewhat below Rex121, when tested at an HRC of 69.8.

Interesting to see 15V pretty close to Z-Max in edge retention despite the 15V's much lower test sample HRC of 63. I'm curious as to what hardness Spyderco got for the Mule. Makes me more interested in Shawn's 15V knife coming out, considering you can get it way tougher (softer) with almost no loss in edge retention compared to the other steels in this quadrant.
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Josh Crutchley
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Re: Z-Max mule!

#19

Post by Josh Crutchley »

TenGrainBread wrote:
Tue Jan 19, 2021 3:04 pm
KnifeSteelNerds did a variety of testing and graphing on 48 steels, including Z-Max (which is chemically equivalent to Rex-86): https://knifesteelnerds.com/2020/05/01/ ... fe-steels/

Not to simplify the results too much, but Larrin assumed a similar toughness to Maxamet based on composition. As to edge retention (measured via CATRA/TCC), it classes slightly above 15V and somewhat below Rex121, when tested at an HRC of 69.8.

Interesting to see 15V pretty close to Z-Max in edge retention despite the 15V's much lower test sample HRC of 63. I'm curious as to what hardness Spyderco got for the Mule. Makes me more interested in Shawn's 15V knife coming out, considering you can get it way tougher (softer) with almost no loss in edge retention compared to the other steels in this quadrant.
If you look at how 10v trends upward with hardness I can only image 15v @69 hrc. I'm also very interested in BBBs colab.
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Re: Z-Max mule!

#20

Post by Bolster »

TenGrainBread wrote:
Tue Jan 19, 2021 3:04 pm
Not to simplify the results too much, but Larrin assumed a similar toughness to Maxamet based on composition.

Could be very hard (into low 70s Rc), wildly good TCC (>900) and we might guess toughness possibly below the 5 ft lbs range?
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