Powdered steel (Premium)
Powder steels – premium knives for demanding users
Modern powder metallurgy makes it possible to produce steels with a fine and uniform structure. The result can be knives with long edge retention, high wear resistance and precise cutting performance.
Powder steels represent one of the most technologically advanced groups of materials used in the production of modern kitchen knives. They make it possible to create alloys with a high proportion of alloying elements and a finer, more evenly distributed carbide structure than can usually be achieved with conventional steel production methods.
In this category, we have included premium knives made from steels such as SG2, SPG2, SPG STRIX®, ZDP-189, HAP-40, Böhler M390 Microclean, CPM S35VN and other high-performance materials. However, individual steels differ significantly: some offer balanced properties for everyday cooking, while others focus primarily on maximum edge retention or wear resistance.
Powder steel alone does not guarantee a perfect knife. The final result is also determined by heat treatment, blade geometry, grind quality, knife construction and final sharpening. Therefore, choose the entire knife, not just the steel designation.
#ShowMore#
What is powder metallurgy?
In conventional production, molten steel is cast into larger semi-finished forms and then processed further. In powder metallurgy, the liquid steel is first atomised into very fine particles. These solidify rapidly and form a metal powder with a controlled structure.
The powder is then consolidated under high pressure and temperature into a compact material. The result is steel with a more uniform distribution of alloying elements and carbides. This allows manufacturers to create alloys with combinations of properties that would be more difficult to achieve with conventionally produced steel.
Long edge retention
A suitably selected and properly heat-treated powder steel can retain a usable edge longer than common softer knife steels.
Wear resistance
A high proportion of hard carbides can improve the material's resistance to abrasive wear during long-term use.
Finer structure
The powder process helps create a more uniform microstructure, contributing to stable and predictable steel properties.
Wide alloying possibilities
The technology makes it possible to combine higher amounts of carbon, chromium, vanadium, molybdenum, tungsten and other elements depending on the intended use.
Overview of powder steels in our range
There is no single best powder steel for everyone. When choosing, you need to consider whether your priority is easier everyday maintenance, long edge retention, higher toughness or extreme cutting performance.
| Steel | Character | Who it suits | What to keep in mind |
|---|---|---|---|
| SG2 | Premium stainless powder steel with balanced cutting performance. | Demanding home cooks and professional chefs. | The fine edge requires proper technique and a knife-friendly cutting board. |
| SPG2 | High-performance powder steel used in premium kitchen knives. | Users seeking precise cutting and long edge retention. | Not suitable for bones, frozen foods or lateral stress. |
| SPG STRIX® | Modern premium steel focused on high edge performance. | More experienced users and chefs requiring precise work. | Harder variants require careful handling and suitable sharpening. |
| ZDP-189 | Japanese powder steel capable of reaching very high hardness. | Experienced users who prioritise long edge retention. | Sharpening tends to be more demanding, and a thin edge does not tolerate rough handling. |
| HAP-40 | Powder high-speed steel with high wear resistance. | Demanding users who are prepared to give the knife proper care. | It is not as low-maintenance as common fully stainless kitchen steels. |
| Böhler M390 Microclean | Corrosion-resistant powder steel with very high wear resistance. | Users seeking a high-performance knife with practical durability. | High wear resistance can mean more demanding sharpening. |
| CPM S35VN | Modern stainless powder steel balancing edge retention and toughness. | Users looking for a practical premium material. | Final properties depend heavily on the manufacturer's heat treatment. |
Steel is only one part of the final result
Two knives made from the same powder steel can cut differently. What matters is the achieved hardness, heat treatment, blade thickness, geometry behind the edge, grind and quality of the final sharpening. Therefore, consider the steel name an important specification, not a standalone guarantee of quality.
Which powder steel should you choose?
I want a versatile premium knife
For everyday use, it makes sense to look for a balanced stainless powder steel such as SG2, SPG2 or CPM S35VN. A comfortable handle, suitable blade length and geometry that matches your working style are equally important.
I want maximum edge retention
If long edge retention is your priority and you have experience with harder knives, you can choose from steels such as ZDP-189, HAP-40 or other highly wear-resistant powder steels. However, expect more demanding sharpening and more careful handling.
I want high corrosion resistance
Look at the specific composition and execution of the steel, not just the term “powder”. Böhler M390 Microclean, for example, combines very high wear resistance with good corrosion resistance. Even such a knife, however, should not be left wet or dirty.
I want easy sharpening at home
An extremely wear-resistant powder steel may not be the most practical choice for a beginner. The greater the material's wear resistance, the higher the quality of abrasive and precision of technique that sharpening may require.
HRC hardness: a higher number is not automatically better
Powder steels can be heat-treated to high hardness, which helps extend edge retention. However, hardness should not be assessed on its own. A very hard and thin edge may be more sensitive to impacts, twisting or contact with hard materials.
The correct HRC value depends on the specific steel, geometry and intended purpose of the knife. For a versatile kitchen knife, a balanced combination of hardness, toughness and edge stability is often more important than achieving the highest possible number.
Care for powder-steel knives
- Wash the knife by hand and dry it immediately after use.
- Use a wooden or suitable synthetic cutting board.
- Do not cut bones, frozen foods or other hard materials.
- Do not twist the blade during a cut, pry with it or use it as a cleaver.
- Store the knife in a protective sheath, knife block or on a suitable magnetic holder.
- When sharpening, use quality sharpening stones suitable for the hardness and wear resistance of the steel.
Premium performance requires proper handling
Knives made from hard powder steels are not designed for chopping bones, cutting frozen foods, opening packaging or prying. Improper lateral stress can cause chipping of the fine edge even though the steel itself offers high wear resistance.
How should powder steels be sharpened?
Some powder steels contain a high proportion of hard carbides and may therefore offer greater resistance during sharpening. High-quality sharpening stones with sufficient abrasive performance are suitable. A stable angle, even progression and thorough burr removal are important.
If you are unsure of the correct procedure, explore our range of knife sharpening and sharpening stones or entrust the knife to a professional sharpener. With a premium blade, it is important to preserve the original geometry and avoid unnecessary material removal.
Not sure which steel to choose?
Contact us at +420 702 049 048, Mon–Fri, 7:30–16:00. We will recommend a suitable knife based on what you prepare most often, your experience and how you want to maintain the knife.
Frequently asked questions about powder steels
What is powder steel?
Powder steel is produced by a process in which molten metal is atomised into fine particles and then consolidated into a compact material under high pressure and temperature.
Is powder steel always better than conventional steel?
Not automatically. It offers exceptional alloying possibilities and a uniform structure, but the final quality of the knife is also determined by heat treatment, geometry, grind and sharpening.
Which powder steel is best for a kitchen knife?
It depends on the user's priorities. SG2, SPG2 or CPM S35VN may be suitable for versatile use, while ZDP-189 or HAP-40 may appeal to more experienced users seeking high edge retention.
Is SG2 the same steel as SPG2?
These designations are often used very closely in knife ranges, but it is always advisable to rely on the information of the specific manufacturer and the product specification of the particular knife.
Why does powder steel hold an edge longer?
In many powder steels, high wear resistance, hard carbides and suitable heat treatment contribute to edge retention. However, the result also depends on blade geometry.
Is a powder-steel knife brittle?
Not necessarily, but a hard and very thin edge may be more sensitive to lateral stress, impacts, bones and frozen foods. Toughness varies between different steels.
Are all powder steels stainless?
No. Powder metallurgy is a manufacturing process, not a designation of corrosion resistance. Some powder steels are highly corrosion-resistant, while others require more consistent care.
Is powder steel more difficult to sharpen?
Often yes, especially if it has high wear resistance and contains a large amount of hard carbides. A suitable sharpening stone can make the work significantly easier.
Can a powder-steel knife go in the dishwasher?
We do not recommend it. A dishwasher can damage the fine edge, blade surface and handle. Wash the knife by hand and dry it immediately after washing.
Who are powder-steel knives suitable for?
Primarily for demanding home cooks, professionals and more experienced users who appreciate long edge retention and are prepared to give the knife proper care.
