Metals and alloys

[Gears_QQQ]

I had an idea. Can an ordinary person buy a maxamet or N690 steel ingot? How does it work, and how do I find such stores? Metals and alloys

[Naperville]

https://www.google.com/search?q=buy+knife+steel+online

[yablanowitz]

Google can be your friend sometimes. Searching for "knife steel supplier" turned up several businesses that sell billets in various steels.

[SpyderEdgeForever]

Sal and all, I tried to use Google etc to find where we can buy H1 and H2 steel from. Is Myodo Metal in Japan the only seller?

I want to buy a small piece of it to put inside a jar of salt water and seal the top and let it sit in there for months and years to show people how it does not rust. Can I do the same with LC200N and MagnaCut?

[horzuff]

Not sure if You're asking for an actual steel ingot as in a couple hundred kilos of even tonnes, pre rolling etc or just a piece of steel enough for a knife?

If the latter, You have a couple answers above.

If the former, I'd guess You'd need to contact the steel maker directly

[Naperville]

Sal and all, I tried to use Google etc to find where we can buy H1 and H2 steel from. Is Myodo Metal in Japan the only seller?

I want to buy a small piece of it to put inside a jar of salt water and seal the top and let it sit in there for months and years to show people how it does not rust. Can I do the same with LC200N and MagnaCut?

Not sure if you can buy H1 or H2. H1 is gone, and H2 might only be accessible to Spyderco. Try AZCK and buy an immaculate copy of a Spyderco knife made in H1 and H2.

For LC200N and MagnaCut use the link in my post and locate a retail outlet.

[SpyderEdgeForever]

Sal and all, I tried to use Google etc to find where we can buy H1 and H2 steel from. Is Myodo Metal in Japan the only seller?

I want to buy a small piece of it to put inside a jar of salt water and seal the top and let it sit in there for months and years to show people how it does not rust. Can I do the same with LC200N and MagnaCut?

Not sure if you can buy H1 or H2. H1 is gone, and H2 might only be accessible to Spyderco. Try AZCK and buy an immaculate copy of a Spyderco knife made in H1 and H2.

For LC200N and MagnaCut use the link in my post and locate a retail outlet.

Thank you friend. Is lc200n truly rust proof like H1?

[Naperville]

Sal and all, I tried to use Google etc to find where we can buy H1 and H2 steel from. Is Myodo Metal in Japan the only seller?

I want to buy a small piece of it to put inside a jar of salt water and seal the top and let it sit in there for months and years to show people how it does not rust. Can I do the same with LC200N and MagnaCut?

Not sure if you can buy H1 or H2. H1 is gone, and H2 might only be accessible to Spyderco. Try AZCK and buy an immaculate copy of a Spyderco knife made in H1 and H2.

For LC200N and MagnaCut use the link in my post and locate a retail outlet.

Thank you friend. Is lc200n truly rust proof like H1?

I'd look at the experiments performed by Larrin to answer that. They are very close.

[SpyderEdgeForever]

Naperville, thank you for your help, friend. I found a knife steel supplier who carries LC200N. What I want to do is get say an inch to 3 inch long piece of that and the same length of a less rust resistent steel, immerse both in jars of concentrated salt water side by side, and take pictures of the effect on each steel over time, and post them on the forum here, to show all of us the difference in corrosion resistance.

[zhyla]

Alpha has N690: link. Not sure why you didn't find this when searching -- do the sizes not work for you? You said "ingot" -- I assume steel that has other purposes will be available in different sizes and shapes. But steel only used for cutlery is going typically be rolled out pretty thin.

In general hobbyist level makers have only so much access to fancy steels.

[SpyderEdgeForever]

Alpha has N690: link. Not sure why you didn't find this when searching -- do the sizes not work for you? You said "ingot" -- I assume steel that has other purposes will be available in different sizes and shapes. But steel only used for cutlery is going typically be rolled out pretty thin.

In general hobbyist level makers have only so much access to fancy steels.

Thank you for this, well said.

Alpha Supply is actually the main one I was looking at.

Do you think when it comes to practical use, N690 is plenty corrosion resistant for most uses? What is amazing to me is that H1, H2, and LC200N are supposedly 100 percent truly rust proof.

[SpyderEdgeForever]

News:

Graphene News:
"new 2D carbon allotrope bridges graphene and functional materials
Researchers from CSIC-UPV/EHU, the University of the Basque Country (UPV/EHU), the Technical University of Munich, the University of Nebraska–Lincoln, Al-Azhar University, and the Donostia International Physics Center (DIPC) have reported the creation of a previously unrealized two-dimensional (2D) carbon allotrope that integrates graphene’s structure with precisely engineered nanopores and biphenylene segments.

A new 2D carbon allotrope combines nanoporous graphene and biphenylene segments image
This new material bridges the gap between ideal graphene sheets and more complex, functional carbon architectures, opening promising avenues for next-generation applications in nanoelectronics and chemical sensing.

The allotrope was synthesized as a nanoporous graphene (NPG) network featuring periodically spaced biphenylene segments. Whereas graphene consists solely of hexagonally bonded carbon atoms, biphenylene incorporates four-, six-, and eight-membered rings. Through a carefully designed bottom-up approach, the researchers grew nanoporous graphene nanoribbons on a gold surface under ultra-high vacuum. Upon controlled heating, the ribbons fused laterally, forming an extended sheet where graphene- and biphenylene-like domains are seamlessly interconnected.

This achievement represents an exceptional level of atomic precision. Unlike conventional materials synthesis, which can introduce random defects, this strategy yields a structurally well-defined material at the atomic scale. The inclusion of periodic pores and non-hexagonal motifs enables fine control over both electronic properties and chemical reactivity.

The introduction of nanopores disrupts the continuous carbon network of graphene, significantly modifying its electronic band structure. While pristine graphene lacks a bandgap - behaving as a semimetal - this new architecture exhibits a semiconducting bandgap, as confirmed by scanning probe microscopy and theoretical calculations. Distinct regions of the network display different electronic behaviors, offering multiple pathways for property tuning.

In addition to adjustable electronic properties, the nanoporous design enhances chemical functionality. The pores create reactive sites that interact readily with gas molecules such as carbon monoxide, demonstrating potential for selective molecular detection. Such properties make the material a compelling candidate for use in sensing technologies related to environmental monitoring, diagnostics, and industrial control.

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Another noteworthy feature is the stability of the material under ambient air and oxygen exposure—an important improvement over many air-sensitive 2D materials. This robustness suggests strong potential for practical deployment outside controlled laboratory conditions.

Overall, this study represents a significant advance in the design and synthesis of carbon-based nanomaterials. By combining atomic-level precision, tunable band structure, and chemical versatility, the researchers have established a new platform for exploring functional 2D carbon materials with real-world technological applications.


Graphene Composites USA
has announced that its ultralight GC Patrol Shield® has become "the first and only rifle-rated ballistic shield to pass and receive third-party verification for rifle and shotgun rounds under the ASTM E3347-25 standard (Standard Specification for Ballistic-Resistant Shields Used by Law Enforcement Officers)".


Third-Party verified edge-shot protection and real-world durability at half the weight of conventional shields could have great potential for Law Enforcement safety.

The ASTM E3347-25 test result confirms that GC Patrol Shield successfully protects against ASTM-Shield-RF1 and ASTM-Shield-SG threats, including 7.62 x 51mm M80, 7.62 x 39mm MSC, 5.56 x 45mm M193, and 12 Gauge Shotgun 1 oz slug rounds, while maintaining structural integrity under the most demanding real-world conditions. SEI, affiliated with ASTM and responsible for verifying ASTM standard compliance, has verified the GC Patrol Shield test result.

This standard is intended to replace the forty-year-old NIJ 0108.01 generic standard for ballistic resistant materials, where ballistic shields were self-certified by manufacturers and contained significant testing limitations whereby a shield had to withstand five widely spaced shots, viewports were not tested, and no third-party verification was available.

The ASTM E3347 standard addresses these critical gaps by requiring that shields are tested by third-party, ISO-qualified laboratories that verify shields perform under ‘real-world’ conditions and threats that affect shield performance, including:

● Extreme environmental conditioning (hot, cold, and water submersion cycles)
● Viewport testing
● Edge shot testing
● Cluster shot testing
● Angled shot testing

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"Being the first and only company to achieve ASTM verification of rifle and shotgun protection with our GC Patrol Shield, is significant validation of our superior ballistic protection technology" said Mox Weber, President, GC USA. "The ability of our ultralight shield to absorb higher-caliber rounds in adverse conditions while retaining integrity, provides law enforcement agencies with independently verified assurance that GC Patrol Shield will perform when officers need it most. We are incredibly proud of this achievement."

Source:
www.wjbf.com
USA launches Department of Fusion Energy

https://www.catf.us/2025/12/doe-launche ... try-scale/