High toughness is effective! Suppresses the occurrence of cracks (longitudinal cracks) on the inner diameter surface.
The "DURO series" includes mold steel that consists of high-speed steel, matrix high-speed steel, and hot work die steel, with a total of 8 steel types in the lineup. Here we introduce an example of use for the high toughness type matrix high-speed steel "DURO-F7." 【Usage Example】Die ■Work: Hydraulic piston pump ■Material type used: DURO-F7 ＜Conventional material type: SKD11 (50HRC, TiN), lifespan affected by cracks＞ ■Hardness: 61HRC ■Surface treatment: TiN ■Lifespan (number of shots): 3 times (cracks) ◎ Suppresses the occurrence of cracks (longitudinal cracks) on the inner diameter surface ◎ The high toughness of DURO-F7 is effective *For more details, please refer to the PDF document or feel free to contact us.
Inquire About This Product
basic information
【Features of DURO-F7】 ■ Combines hardness of 64HRC or higher with high toughness ■ Has wear resistance comparable to SKH51 ■ Excellent fatigue strength achieved through special melting *For more details, please refer to the PDF document or feel free to contact us.*
Price range
Delivery Time
Applications/Examples of results
For more details, please refer to the PDF document or feel free to contact us.
catalog（1）
Download All Catalogs
Company information
Nachi-Fujikoshi contributes to the development of the manufacturing world through its machining business, including machine processing and robotics, its functional components business, including bearings and hydraulic equipment, and its materials business, including materials and heat treatment.