Damasteel RWL34




Basic parameters:
- Thickness tolerance: 0/+0,3 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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| 854.89 zł | 23 % | 1,051.51 zł | 5 | ||||||
| 1,040.73 zł | 23 % | 1,280.10 zł | 4 |
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. |
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| 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. |
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| 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. |
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| 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. |
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| 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:

RWL34™ - An Exceptional Steel for Knives
Damasteel RWL34™ is a martensitic stainless steel with excellent mechanical properties, designed specifically for the knife-making industry. It is based on the classic ATS-34 steel composition, with improvements introduced through the powder metallurgy (PM) process. Its name pays homage to the legendary knifemaker Bob Loveless, emphasizing its importance in the knife-making community. Thanks to advanced manufacturing technology, RWL34™ offers a remarkable balance between hardness, toughness, and corrosion resistance.
Chemical Composition of RWL34™
| Element |
Composition |
| Carbon (C) | 1,05% |
| Manganese (Mn) |
0,50% |
| Silicon (Si) | 0,50% |
| Chromium (Cr) | 14,00% |
| Molybdenum (Mo) | 4,00% |
| Vanadium (V) | 0,20% |
RWL34™ contains 1.05% carbon, which ensures high hardness and edge retention. The 14% chromium content provides excellent corrosion resistance, while 4% molybdenum further enhances strength and temperature stability. Vanadium, present at 0.2%, improves wear resistance and microstructure, while 0.5% silicon aids the hardening process and strengthens mechanical properties. The additional 0.5% manganese improves hardenability and durability. Thanks to this balanced mix of elements, RWL34™ offers a unique combination of high strength, corrosion resistance, and long-lasting sharpness.
Heat Treatment of RWL34™
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 RWL34™ Steel
Austenitizing
The austenitizing process for RWL34™ steel involves heating to 1050–1100°C (1920-2010°F) and holding at the set temperature for 15 minutes, counting from the moment the steel reaches a uniform temperature. Allow approximately 3 minutes for temperature equalization, depending on the furnace type. This manufacturer-recommended holding time applies regardless of steel thickness.
Quenching
Steel should be cooled to 50 °C (120 °F) as quickly as possible. An air quench is recommended, with the part reaching 50 °C (120 °F) within two minutes.
Sub-zero Treatment (Optional)
After quenching, the steel may undergo sub-zero (cryogenic) treatment, which completes the martensite transformation and increases hardness. This can be done by holding the steel at −100 °C (−148 °F) for 2 hours, or in Liquidized Nitrogen at −198 °C (−324 °F) for 30 minutes.
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 RWL34™ 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 in the 150–450 °C (300–840 °F) range without loss of corrosion resistance. Temper twice for 2 hours each.
Estimated hardness achievable depending on austenitizing and tempering temperatures:
| Austenitizing temperature | Tempering temperature | Hardness |
| 1050°C (1920°F) | 220°C (430°F) | 59 HRC |
| 1050°C (1920°F) | 175°C (345°F) | 62 HRC |
| 1080°C (1980°F) | 220°C (430°F) | 58 HRC |
| 1080°C (1980°F) | 175°C (345°F) | 63 HRC |
| 1100°C (2010°F) | 175°C (345°F) | 64 HRC |
Below is the tempering chart for RWL34™ steel.
RWL34™ Steel Tempering Chart
TU WKLEIĆ
Comparison of RWL34™ with Other Steels
RWL34™ vs. ATS-34
RWL34™ is derived from ATS-34 but offers improvements through powder metallurgy:
- Better carbide distribution, enhancing fracture toughness.
- Higher corrosion resistance due to a more homogeneous structure.
RWL34™ vs. CPM 154
CPM 154, the U.S. equivalent of RWL34™ in powder metallurgy, is often compared to the European steel. RWL34™ offers:
- Superior surface finish (especially in polishing).
- Slightly better strength parameters in dynamic applications.
RWL34™ vs. M390
- M390, a premium stainless steel, offers better edge retention than RWL34™ but is more challenging to machine.
- RWL34™ is better suited for applications requiring a smoother surface finish.
RWL34™ vs. Elmax
- Elmax offers higher wear and corrosion resistance, but RWL34™ is more versatile in terms of sharpening and machining.
RWL34™ vs. N690
- N690 is more affordable and easier to work with, but RWL34™ surpasses it in hardness and edge retention.
RWL34™ vs. Magnacut
- Magnacut provides better corrosion resistance and longer edge retention, but RWL34™ is more versatile in general applications.
RWL34™ vs. Vanax
- Vanax excels in corrosion resistance among stainless steels but is less hard than RWL34™, limiting its use in knives with extreme requirements.
Applications of RWL34™
Outdoor and Survival Knives
Thanks to its high corrosion resistance and edge retention, RWL34™ is an excellent choice for outdoor enthusiasts. It withstands extreme weather conditions and retains functionality for extended periods.
Kitchen Knives
As a stainless steel, RWL34™ performs exceptionally well in premium kitchen knives. Its ability to maintain sharpness minimizes the need for frequent sharpening, and its stain resistance makes maintenance easier.
Tactical and Military Knives
With its strength and resistance to harsh conditions, RWL34™ is often chosen for tactical knife production.
Advantages of RWL34™
- Corrosion resistance: High chromium content.
- Wear resistance: Enhanced by vanadium and molybdenum.
- Excellent surface finish: Easy to polish.
- Versatility: Suitable for various knife types.
Conclusion – Why Choose RWL34™ Steel?
RWL34™ is an exceptional steel combining excellent strength, hardness, and corrosion resistance. It is ideal for high-quality knife production, offering ease of machining and outstanding mechanical properties. Compared to other premium steels, RWL34™ is an excellent choice for knifemakers and users seeking top-tier solutions.

RWL34 stands out due to its powder metallurgy process, which ensures superior carbide distribution, excellent corrosion resistance, and a remarkable balance between hardness and toughness.
Knives made from RWL34 typically achieve a hardness of up to 62 HRC, depending on the heat treatment process used.
Yes, RWL34 is highly suitable for outdoor and survival knives due to its exceptional corrosion resistance, durability, and edge retention in harsh environments.
RWL 34 is an excellent choice for premium kitchen knives as it maintains sharpness for extended periods and is resistant to staining and corrosion.
Despite its high hardness, RWL34 is relatively easy to sharpen compared to other premium stainless steels, making it user-friendly for both professionals and enthusiasts.