ASSAB 718 HH Planilha

General
718 Hi Hard is a prehardened mould steel, which offers the following benefits:

• No hardening risks

• No hardening costs

• Time saving, e.g. no waiting for heat treatment

• Lower tool cost (e.g. no distortion to rectify)

• Modifications easily carried out

• Can be subsequently nitrided to increase surface wear resistance and locally flame hardened to reduce surface damage

718 Hi Hard is manufactured to consistently high quality standards with a very low sulphur content, giving a steel with the following characteristics:

• Good polishing and photo-etching properties

• Good machinability

• High purity and good homogeneity

• Uniform hardness

Note: 718 Hi Hard is 100% ultrasonic tested.

Heavier sections are supplied premachined which offers the following advantages compared with un-machined material:

• Saving of weight

• Non-decarburized surface

• Exact nominal size (plus tolerance)

• Less machining

• Absence of scale minimizes machine and tool wear

Applications

• Injection moulds for thermoplastics

• Extrusion dies for thermoplastics

• Blow moulds

• Forming tools, press-brake dies (possibly flame hardened or nitrided)

• Aluminium die casting prototype dies

• Structural components, shafts