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Welcome to the new eshop Jatagan.eu! Pro české a slovenské zákazníky jsme spustili nový eshop na adrese jatagan.cz a jatagan.sk. Pro pohodlný nákup si, prosím, přepněte jazyk na CZ/SK. 

RWL 34 - 5.2mm

dimension in mm

Catalog number: XP363

in stock

61,70 € with VAT.

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Product description

Atomization Modern tool steels for cutting or piercing edges are nowadays made of powder materials, RSP (Rapid Solidification Powder) - tool steels. ASP steel (trade name) has been produced in Söderfors for 20 years. ASP-steels have found their application in the engineering industry, where the durability of the tool edge is the basis. The reason why powder steels provide exceptional cutting edge lies in the structure. The coarse carbide structure of common steels reduces the fracture toughness. Clusters of carbides can locally concentrate stresses under stress. Substantially carbides in powder steels cause fracture to occur at almost double the stress. Powder steels have almost twice the fracture toughness of comparable steels produced by conventional methods. The best combination of hardness and toughness is powder steels. Heat treatment Temperature for rolling - forging 1160 - 1050 C Melting occurs at 1220 C (2230 F). This means that the steel is relatively sensitive to overheating. Combustion can occur at too high heating temperatures. Deformation heat must be taken into account. Prolonged heating leads to material loss due to decarbonization. Slow cooling or gradual annealing after heating prevents the formation of cracks. Fast stiffening Modern tool steels for cutting or piercing edges are nowadays made of rapidly hardened powder materials, RSP - tool steels. ASP steel (trade name) has been produced in Söderfors for 20 years. ASP-steels have found their application in these branches of the mechanical industry, where the stability of the tool edge is fundamental. The reason why RSP-steels provide exceptional blade lies in the reinforced structure. The coarse carbide structure of common steels limits the fracture toughness. Clusters of carbides act as fracture initiators at a certain degree of stress. Significantly smaller clumps of carbides in fast-setting materials cause the fracture to occur at almost twice the degree of stress. Powder steels have almost twice the fracture toughness of conventional steels. The best combination of hardness and strength is in rapidly hardened powder steels. Composition of martensitic stainless damascensic steel RWL 34 in%. Material C Si Mn Cr Mo V RWL 34 1.05 0.50 0.50 14.00 4.00 0.20 Forging The temperature for forging or rolling is 1160 - 1050 ° C. Melting starts already at 1220 ° C, which means increased sensitivity of the material to overheating, careful temperature control is necessary, electric or gas furnace is recommended. Compared to normal steel with a low carbon content, pure steel has almost twice the deformation pressure, so when forging manually, act on relatively small areas. Prolonged overheating leads to carbonation and flaking of the material. Slow cooling after heat treatment prevents breaks and cracks in the structure (200 ° C). It is recommended to cool in sawdust or under or other thermal insulation material. Soft tempering (annealing) Due to the risk of cracking, cutting or machining should not take place after heat treatment before the material has been tempered, the tempering time is 5 hours at a temperature of 750 - 780 ° C. (Rod material supplied by DAMASTEEL, AB is tempered below 300 HV) Hardening After rough grinding, the blade is ready for hardening. After hardening, the classic anti-corrosion resistance of this steel becomes apparent. Heat treatment in vacuum brings an advantage in the surface, which is free of oxides, so it is possible to do most grinding and polishing before the actual hardening and grinding to clean before the final treatment. Vacuum processing for larger companies. In our case, an open electric furnace is used and procedure No. 1, the normal size blade should be heated at 1050 ° C (1920 ° F) for 10 - 15 min. Knives must be hung so that we do not expose them to unequal temperatures and collapse. If space is tight, the knives can be placed (stored) on their backs and fastened with steel wire. During processing, surface oxides are developed, which cause possible charring under the blade's own surface. This problem can be reduced by refractory coating or wrapping in newsprint covered with refractory foil. After removal, the blade must be rapidly cooled below 500 C ° (930 F °), smaller knives can be air cooled. Any protective foils must be removed immediately. Uneven cooling causes temperature pressures and collapse, especially long, thin blades are sensitive. When cooling, it is good to place the knife in the barrel to prevent drafts. The following graph shows the achievable hardness in HRC depending on the tempering temperature and hardening method for RWL 34 (tempering time for temperatures around 200 ° C 1 x 2 hours, for temperatures around 500 ° C 3 x 1 hour) Low tempering temperatures are recommended for better anti-corrosion properties. The thicker the product, the more important the fast cooling. The blade is immersed in water or hardening oil for a short time (just when the red color disappears). Cooling the Martensite structure too quickly below 300 ° C (570 ° F) causes unwanted twisting. What cools them

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Parameters

  • Material RWL 34
  • Kind of steel Stainless steel
  • Material thickness 5.2 mm

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5 pcs in stock

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Estonia DPD free 31. 8.
Latvia Itella free 31. 8.
Latvia DPD free 31. 8.
Lithuania Itella free 31. 8.
Lithuania DPD free 31. 8.
Italy DPD free 29. 8.
Slovenia GLS free 29. 8.
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RWL 34 - 5.2mm

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