Name: SIHARD Cold-Work Tool Steel
Brand: SIJ Metal Ravne

Cold-work steel for cyclically loaded tools

SIHARD is a cold-work tool steel brand produced by SIJ Metal Ravne and distributed and serviced by HTS Group / Ravne Steel Center. It is adapted for machining and cutting metal, wood and synthetic materials.

The steels combine dimensional stability, high compressive strength and the required toughness with resistance to adhesion, abrasion and fragmentation of the cutting edge. They can be nitrided and given hard PVD or EDM coatings.

SIHARD steels are used for cyclically loaded tools such as punches, presses, die inserts for powder compaction, knives, blades, forging tools, rolling tools and deep drawing tools.

Main SIHARD grades

1.2080 / D3

SIHARD 2080

High-carbon, high-chromium cold-work steel for cutting tools and wear-resistant applications.

Working hardness: 57–62 HRC
Achievable hardness: 63–66 HRC

1.2357 / S7

SIHARD 2357

Shock-resistant cold-work steel for impact-loaded tools.

Working hardness: 55–60 HRC
Achieved hardness: 59–61 HRC

1.2363 / A2

SIHARD 2363

Air-hardening cold-work steel for dies, punches and cutting tools.

Working hardness: 57–61 HRC
Achieved hardness: 63 HRC

1.2379 / D2

SIHARD 2379

High wear-resistant grade for knives, dies, punches and cutting tools.

Working hardness: 57–61 HRC
Achievable hardness: 62–64 HRC

1.2510

SIHARD 2510

Cold-work steel with high hardness for cutting and measuring tools.

Working hardness: 57–62 HRC
Achieved hardness: 64 HRC

1.2767

SIHARD 2767

Tough nickel-alloyed cold-work steel where toughness is important.

Working hardness: 52–55 HRC
Achieved hardness: 56 HRC

1.2842

SIHARD 2842

Cold-work steel for tools needing high hardness and wear resistance.

Working hardness: 57–62 HRC
Achieved hardness: 63–65 HRC

Custom grade

SIHARD S460

Higher hardness and toughness than conventional SIHARD 2379 / AISI D2.

Achievable hardness: 60–62 HRC

Custom grades

SIHARD S470 / S471

Higher working hardness, improved toughness and uniform wear resistance, between 12% Cr ledeburitic steels and high-speed steels.

Where SIHARD is used

Shear blade cutting sheet metal, blue tinted

Shearing dies

Shearing dies, knives and blades for shears.

Row of machined steel rolls with grooved profiles

Rolling cylinders

Work and intermediate rolling cylinders and rolling tools.

Punching and stamping dies

Punches, stamping dies, die plates and coining dies.

Powder compaction

Die inserts for powder compaction.

Cutting toolsIndustrial knivesThread rolling diesPiercing mandrelsReamersBushesRoller bearingsSurgical instrumentsCold heading toolsForging toolsDeep drawing tools

Properties and grade range

Properties

High dimensional stability and compressive strength.
Good toughness for cyclically loaded tools.
High wear and abrasion resistance.
Resistance to adhesion and fragmentation of the cutting edge.

Surface treatment

Suitable for nitriding.
Suitable for hard PVD coatings.
Suitable for EDM coatings.

Range

Grades 2080, 2357, 2361, 2363, 2379, 2510, 2767, 2842, K560, S460, S470, S471 and S671.
Square, flat and round sections, forgings, welding wire and electrodes.
Produced by SIJ Metal Ravne, distributed and serviced by HTS Group.

Why SIHARD for tooling

Longer tool life. Higher wear resistance in cutting and forming applications.

Stable dimensions. Better dimensional stability after heat treatment.

Edge retention. Reduced risk of fragmentation of the cutting edge and better resistance to abrasion and adhesion.

Toughness. Good toughness for cyclic and impact-loaded tools.

Coating-ready. Suitable for coating and surface treatment to improve tool performance.

Grade selection support. HTS technical support helps select the correct SIHARD grade for each application.