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Laser Cutting of thin Foils
We cut thin foils from various materials with high precision using state-of-the-art laser technology. This results in precise contours, clean cutting edges, and consistent quality – even for complex shapes and sensitive materials.
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Contact:
- Email: info@metallstore24.de
- Phone: +49 9471 3189905
Or simply use our inquiry form.
Hardened knife steel 420
Non-rusting and good durability, that is our requirement for steel for knives. As a high-alloy and hardened steel, knife steel 420 is ideal for chef's and pocket knives, but also for scalpels. A low carbon and moderate chromium content make the metal very fine-grained. If the knife is hardened from this material, it is ideal for outdoor knives, as the material is robust through and through and impresses with its rust resistance, sharpness and toughness.
Average rating of 5 out of 5 stars
Knife steel sheet hardened (420) 1000 x 360 mm
" The advantages of this steel are its good wear resistance and minimal internal stress. With a Rockwell hardness of 49-53 HRC, this material is ideal for gauges, tools and machine knives in the food industry and scalpels. This special steel is corrosion-resistant in moist air, steam and water and should not be welded if possible, since the martensitic chrome steels are air-hardening. The material 1.4034 is magnetizable and can therefore be clamped on the magnetic clamping plates of grinding machines. Other uses/properties: Sawing in the food industry Fabric knife Wear rails Print Crackers Brake discs very well etchable magnetisable "
Knife steel sheet hardened (420) 2000 x 360 mm
" The advantages of this steel are its good wear resistance and minimal internal stress. With a Rockwell hardness of 49-53 HRC, this material is ideal for gauges, tools and machine knives in the food industry and scalpels. This special steel is corrosion-resistant in moist air, steam and water and should not be welded if possible, since the martensitic chrome steels are air-hardening. The material 1.4034 is magnetizable and can therefore be clamped on the magnetic clamping plates of grinding machines. Other uses/properties: Sawing in the food industry Fabric knife Wear rails Print Crackers Brake discs very well etchable magnetisable "
Content: 2 Meter (€69.10 / 1 Meter)
Average rating of 4.9 out of 5 stars
Laser Cutting
Laser parts - laser cutting - inquire online Individual product production of laser cutting parts according to your specifications. With a sketch, a drawing or a DXF file you can use our online form to inquire, request a quote and order. We manufacture for both private and business customers. We cut individual pieces or small series for you up to a size of 20 x 40cm (other dimensions on request) from sheet metal 0.05 - 2mm thick (other dimensions on request). Various materials such as stainless steel, copper, brass, bronze etc. can be processed with our lasers.
Average rating of 5 out of 5 stars
Factory certificate - acceptance test certificate
With our products we guarantee you the highest quality standards. In order to secure this guarantee for your customers, we offer tool certificates 2.2 and acceptance test certificates 3.1 according to DIN EN 10204 for purchase for our metals. There are several ways you can do this. We will show these in more detail in the following article. The nature of materials (e.g. mechanical properties) is not always recognizable at first glance. As in product piracy, for example. Unfortunately, this also happens with metals because it is difficult to see whether the materials can meet the requirements. This also means that test seals and product names are sometimes forged. For this reason, unspecific factory certificates and special acceptance test certificates have been introduced, which are created for each order. We would also like to point out that our materials undoubtedly meet the highest quality standards. We can also issue a factory or acceptance test certificate at any time for intermediaries who have the burden of proof that the quality has been properly maintained. In this way we guarantee in writing that the materials have been delivered in accordance with the requirements of your order. The certificates contain the following information:- Description of the material such as B. Alloy, dimensions, weight, etc.- Chemical analysis (percentage of chemical elements)- Mechanical properties such as B. Tensile Strength Differences between the test certificates (DIN EN 10204)A distinction is made between four types of certificates, all of which prove the confirmation of the conformity of the order (source: Beuth Verlag) Type of content of the certificate Confirmation of the certificate 2.1 Factory certificate Confirmation of compliance with the order Manufacturer 2.2 Factory certificate Confirmation of compliance with the order stating the results of non-specific tests Manufacturer 3.1 Acceptance test certificate Confirmation of compliance with the order stating the results of specific tests The manufacturer's inspection officer, who is independent of the production department 3.2 Acceptance test certificate Confirmation of compliance with the order stating the results of specific tests The manufacturer's acceptance officer who is independent of the production department and the acceptance officer commissioned by the customer or the acceptance officer named in the official regulations - The works certificate (2.1) and the works certificate (2.2) are issued directly by the manufacturer. - The acceptance test certificate (3.1) is confirmed by the manufacturer's independent acceptance officer. - The acceptance certificate (3.2) is confirmed by the manufacturer's acceptance officer who is independent of the production department and by the acceptance officer commissioned by the purchaser or the acceptance officer named in the official regulations. Important!Factory certificates and acceptance test certificates according to DIN EN 10204 are not automatically supplied. These must be ordered separately for a surcharge.
Knife steel 420 hardened - because not all steel is the same
As humans evolved, they learned to use tools. At first there were worked stones, gradually metals were found and made into tools. The demands on tools and weapons became greater and greater as human development progressed. When the Celts found the first iron ore deposits around 800 BC, they quickly learned to use the new material for their own purposes. However, the pig iron was brittle due to a high carbon content. The fragile metal did not meet the requirements. People soon discovered that the material became more durable when other substances were added and alloys were formed. The resulting mixed metal was more durable and it was soon discovered that the new material was suitable for forging and rolling. The realization that steel is resistant, elastic, but also particularly stable quickly made it a widely used material. But this steel rusts. It wasn't until 1912 that scientists discovered that an alloy consisting of iron, nickel and chromium had rustproof properties. If the good properties of this alloy are further developed, knife steel 420 is created, which has excellent properties.
Knife steel — Cr steel hardened 420
The 420 Cr steel hardened can be hardened to a higher degree than many other steel alloys due to its carbon content. This steel alloy is often used for surgical instruments, in the food industry and for cutting tools. The material is resistant to aggressive media. If the material is used for ground or polished surfaces, it is also corrosion-resistant.
How can knife steel 420 be processed
Forging should be mentioned first. It takes place with slow heating to a temperature of over 800°C. Once this temperature is reached, the steel is quickly brought to a temperature of 1050°C to 1150°C. The actual forging process should be carried out in the range of 1100°C and 800°C. The steel is then slowly cooled in an oven or in dry ashes. Knife steel 420 is only suitable for welding processes if precautionary measures are observed. Martensitic chrome steel is air-hardening and should only be welded if it cannot be avoided. The steel is particularly resistant to corrosion in the presence of water vapor and weak organic acids, i.e. only in media and media that do not contain chloride low aggressiveness. Particularly good results are achieved when sharpening this steel. This property gave it its name - It is not for nothing that hardened Cr steel 420 is called “knife steel” also called.
Summary
- Hardened Cr steel 420 can be polished to a high shine
- can be hardened up to 55 HRC
- is ferromagnetic.
- The steel responds very well to mechanical processing. For example, the material can be processed with a band saw without unintentional deformation. The material does not change during mechanical processing.
- This also makes it possible to finish a workpiece by drilling or milling without any further work steps.