Alleima DAMAX




Basic parameters:
- Thickness tolerance: 0/+0,1 mm (the surface is not precision ground)
- Cutting tolerance: we cut the steel on band saws to a tolerance of 0/+3 mm (width x length)
- Delivery conditon: steel in non-hardened condition (steel requires hardening)
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| 628.94 zł | 23 % | 773.60 zł | 9 | ||||||
| 694.00 zł | 23 % | 853.62 zł | 8 |
OUR STEEL IS FOR YOU, IF:
| You value precisely cut material We cut steel using band saws, ensuring straight edges. We do not use guillotine shears, which can warp sheets and round their edges. | |
| Minor scratches or residue are not an issue for you Sometimes, a single steel sheet passes through the saw multiple times, which may cause slight surface scratches. Occasionally, delicate spot traces of surface corrosion (thin residue) may appear on the steel due to coolant remnants from the cutting process. Both scratches and residue can be easily removed during grinding. If you require steel with a perfectly clean surface, our product will not meet your expectations. | |
| You can straighten minor surface deviations yourself We strive to deliver perfectly flat steel pieces, but we cannot guarantee 100% flatness. Any slight surface curvature is not a material defect but rather a result of mill tolerances (flatness tolerances for rolled products). An experienced knifemaker can handle such a curvature in no time. | |
| You want to buy steel from trusted supplier We source our steel from the largest manufacturers in Europe and beyond. Each delivery is precisely marked with an industrial hand jet printer to prevent errors during cutting and storage. | |
| You don't like overpaying Our mission is to provide you with a piece of steel that is as close as possible to the shape of the knife you want to make. With us, you don't have to buy a large piece of steel and make unnecessary supplies or throw unnecessary surpluses in the trash. |
Example photo of a steel sheet:

Damax™ Steel – A Next-Generation Damascus Steel for Knives and Cutting Tools
Damax™ steel, developed by Alleima, is a premium Damascus steel designed for high-performance knives. This innovative material combines outstanding corrosion resistance, hardness, and durability, making it ideal for professionals and enthusiasts alike.
What is Damax™ Steel?
Damax™ steel is a unique Swedish Damascus steel produced by an innovative industrial process — up to 135 layers of martensitic stainless steel. It's a multilayered steel, built up by two different steel grades:
- 7C27Mo2 – A martensitic stainless steel with excellent corrosion resistance and toughness.
- 19C27 – A martensitic stainless steel known for its high hardness and exceptional edge retention.
The precise combination of these alloys ensures that Damax™ steel not only delivers superior mechanical properties but also showcases the stunning patterns characteristic of Damascus steel.
Grinding gives the material a striped appearance. For a custom pattern, it must be cold- or hot-embossed and subsequently re-ground.

Chemical Composition of Damax™ Steel
Damax™ is a mixture of the two grades Alleima® 7C27Mo2 and Alleima® 19C27
| Element |
Composition |
| Carbon (C) | 7C27Mo2 = 0,38% 19C27 = 0,95% |
| Manganese (Mn) |
7C27Mo2 = 0,60% 19C27 = 0,70% |
| Silicon (Si) | 7C27Mo2 = 0,40% 19C27 = 0,40% |
| Chromium (Cr) | 7C27Mo2 = 13,50% 19C27 = 13,50% |
| Molybdenum (Mo) | 7C27Mo2 = 1,00% |
The chemical composition of the individual alloys that make up Damax™ steel contributes to its remarkable properties:
- Chromium (Cr): 13.5% – Enhances corrosion resistance and durability.
- Carbon (C): 0.38% (7C27Mo2) and 0.95% (19C27) – Provides hardness and edge stability.
- Manganese (Mn): 0.6% (7C27Mo2) and 0.7% (19C27) – Improves toughness and strength.
- Silicon (Si): 0.4% – Adds strength to the steel.
- Molybdenum (Mo): 1.0% (7C27Mo2) – Increases corrosion resistance and strength.
Heat Treatment of Damax™ Steel
Heat treatment difficulty shown at the top of this page reflects the most common choice in our survey of Polish knifemakers, prepared with input from an experienced heat treater. Please treat it as community guidance, not a specification.
“EASY-TO-HARDEN” denotes a more forgiving steel — one that delivers predictable, useful results even with minor deviations in process parameters.
“DIFFICULT-TO-HARDEN” calls for tight process control; small mistakes can quickly degrade the final outcome.
A FEW WORDS ON HEAT TREATMENT
Heat treatment is as much craft as it is science. Results depend on many variables: steel grade, blade thickness, furnace and atmosphere, soak temperature and time, quench medium and its temperature, and the tempering schedule.
At IK STAL we value transparency and reliable sources. Rather than promising one-size-fits-all recipes, we share manufacturers’ baseline data so you can adapt it to your own workshop. However, the data provided by manufacturers is not always detailed enough to constitute a complete “recipe” for heat-treating a thin knife. For specific settings, we encourage you to consult an experienced heat treater.
Hardening of Damax™ Steel
Austenitizing a single piece (in a small furnace, or on a belt furnace)
Heat the piece to 1060°C (1940°F) and hold at the set temperature for a specified time, counting from the moment the steel reaches a uniform temperature.
If a sub-zero treatment -70°C (−95°F) is planned, use the higher austenitizing temperature of 1090°C (1994°F).
Recommended holding time in furnace by thickness:
- 5 minutes for 2.5 mm
- 6 minutes for 3.0 mm
- 7 minutes for 3.25 mm
- 8 minutes for 3.5 mm
- 10 minutes for 3.75 mm
- 12 minutes for 4.0 mm
Batch austenitizing
Heat the load to 1050°C (1922°F) and hold at the set temperature for a specified time, counting from the moment the steel reaches a uniform temperature.
If a sub-zero treatment -70°C (−95°F) is planned, use the higher austenitizing temperature of 1080°C (1976°F).
Holding time in furnace: 30 minutes.
When hardening larger batches, there is a risk of temperature variations within the load. Therefore, first bring the material to a uniform temperature by holding it at temperature 850°C (1560°F) for 30 minutes, and only then heat it to the target temperature.
Quenching
After austenitizing, quench Damax™ to room temperature as quickly as possible, medium: oil.
The manufacturer states that for optimal results the temperature should drop to 600°C (1110°F) within 2 minutes or less: “it is very important that the furnace equipment has high cooling capacity in order to meet the requirement for lowering the temperature to 600°C (1112°F) within 2 minutes”.
Sub-zero Treatment (Optional)
After hardening, the steel can be frozen at −70°C (−95°F). This process increases hardness by approximately +2/+3 HRC and stabilises the steel structure. Sub-zero treatment should be performed after hardening and before tempering. In practice, this process is an extension of hardening to a lower temperature, so any delay between hardening and sub-zero treatment may reduce its effect.
Tempering of Damax™ Steel
Tempering is the controlled reheating of a hardened blade to a chosen temperature and holding it for a set time to reduce brittleness and stresses from hardening and increase the knife’s impact toughness.
The manufacturer recommends tempering at 175–350°C (345–660°F) for 0.5–2 hours.
Estimated hardness at various tempering temperatures:
| Tempering temperature | Hardness (quenched to room temperature) | Hardness (quenched with deep-freezing) |
| 175°C (345°F) | 59 HRC | 62 HRC |
| 225°C (435°F) | 58 HRC | 60 HRC |
| 350°C (660°F) | 56 HRC | 58 HRC |
Below is the tempering chart for Damax™ steel.
Damax™ Steel Tempering Chart
Typical tempering curve for austenitizing at 1060°C (1940°F) and quenching to room temperature.
TU WKLEIĆ ZDJĘCIE
Etching Damax™ Steel
To reveal the pattern, the finished product must be etched. Before etching, the surface should be smooth and thoroughly degreased to remove any oil residues. Various acids and methods may be used. The table below provides producer recommendations.
| Chemicals | Mixture | Tempature | Time |
| Sulphuric acid, H2SO4 (conc. ~ 96%) | 15% acid + 85% distilled water | 50°C (122°F) | 20 min |
| Hydrochloric acid, HCl | Use concentrated | 50°C (122°F) | 2 min |
| Citric acid and Iron chloride (FeCl3) | 50% citric acid + 50% distilled water. Heat until the citric acid is dissolved. Add ca 5% of FeCl3 to the mixture. | 80°C (176°F) | 30 min |
Immerse the piece in the acid for the recommended time, or until the pattern appears to the desired intensity. Heating accelerates the reaction and should be done in a water bath. Observe standard safety precautions when handling acids.
After etching, remove all acid residues: rinse thoroughly with water, and optionally neutralize in a water–baking soda (sodium bicarbonate) solution.
Light fine-grit sanding or polishing afterwards further boosts contrast by brightening the raised layers.
Key Features of Damax™ Damascus Steel
- Stunning Damascus Pattern – The layered structure creates unique, eye-catching patterns.
- High Corrosion Resistance – With 13.5% chromium, Damax™ resists rust and stains even in demanding conditions.
- Exceptional Edge Retention – The high-hardness 19C27 alloy ensures a sharp, durable edge.
- Balanced Toughness – 7C27Mo2 adds flexibility and resistance to chipping.
Comparing Damax™ Steel to Other Steels
Damax™ Steel vs. Traditional Damascus Steel
Traditional Damascus steel often prioritizes aesthetics over performance. Damax™ combines the beauty of Damascus with modern metallurgical advancements, offering consistent properties and reliability.
Damax™ Steel vs. D2 Steel
D2 steel is harder but less corrosion-resistant. Damax™ provides a superior balance, making it ideal for outdoor and culinary applications.
Damax™ Steel vs. Elmax Steel
Elmax is a premium powder metallurgy steel known for wear and corrosion resistance. Damax™ competes with Elmax by offering comparable performance with added visual appeal.
Applications of Damax™ Steel in Knifemaking
Outdoor Knives
Durability and resistance to harsh conditions make Damax™ an excellent choice for field knives. It delivers a stable edge and low maintenance in moisture, mud, and temperature swings.
Culinary Knives
Chefs value Damax™ for long-lasting sharpness and stainless performance in daily use. The elegant etched pattern adds prestige without compromising cutting efficiency.
Tactical Knives
Damax™ provides dependable edge retention and high strength in critical situations. Its corrosion and wear resistance excels when cutting straps, rope, or technical materials.
Collector’s Knives
The mesmerizing Damax™ patterns make each piece a unique collector’s item. At the same time, the steel retains practical performance - beauty paired with functionality.
Maintenance Tips for Damax™ Steel
Proper care ensures the longevity of Damax™ steel:
- Clean and dry the knife after every use.
- Apply a light oil coating to prevent moisture damage.
- Sharpen regularly with diamond or ceramic stones for the best edge performance.
Summary – Why Choose Damax™ Steel?
Damax™ steel sets a new benchmark in Damascus materials, combining exceptional performance, high corrosion resistance, and stunning visual appeal. Composed of 135 meticulously forged layers, it creates unique, flowing patterns that enhance every blade. This innovative steel offers outstanding toughness, edge retention, and beauty, making it a preferred choice for professional bladesmiths and passionate knifemakers seeking both quality and striking design.

Damax™ combines the beauty of Damascus patterns with advanced performance, using 7C27Mo2 and 19C27 alloys.
Proper heat treatment results in a hardness of 58–62 HRC.
Yes, its high corrosion resistance and durability make it perfect for outdoor applications.
It is ideal for outdoor, culinary, tactical, and collector’s knives.
Clean, dry, and oil regularly, and sharpen with appropriate tools to maintain edge quality.