High-Speed Steel

SIRAPID High-Speed Steel

Name: SIRAPID High-Speed Steel
Brand: SIJ Metal Ravne

SIJ brand for high-speed steel

SIRAPID High-Speed Steel from SIJ Metal Ravne is alloyed with molybdenum and tungsten, hardened to about 62–67 HRC and keeps its hardness at tool working temperatures, with wear and shock resistance.

Manufactured bySIJ Metal Ravne · HTS Group

Thread-cutting tap entering a hole in a machined metal part — High-speed steel tap in use.

62–67 HRCTypical hardened range

65–68 HRCSIRAPID 3247 / M42

Ø7–200 mmRound bars

20–200 mmSquare sections

Mo + WMain alloying elements

Overview

Molybdenum-tungsten steel for cutting tools

SIRAPID steels are high-speed steels alloyed with molybdenum and tungsten, produced by SIJ Metal Ravne and distributed and serviced by HTS Group / Ravne Steel Center. They are designed to reach high hardness and keep it during demanding tool operation.

The steel provides wear and shock resistance for tools exposed to high cutting speeds, friction and temperature. It is hardened to approximately 62–67 HRC and keeps its hardness well at tooling working temperatures.

It is used for knives, drill bars, milling cutters, reamers, saw blades, broaches, turning and planing tools, wear-resistant inserts, Sendzimir rolls and other cold-work tools.

Grades

Main SIRAPID grades

1.3343 / M2

SIRAPID 3343

General-purpose HSS for cutting tools, drills, milling cutters, woodworking tools and Sendzimir rolls.

Achieved hardness: min. 64 HRC

1.3355 / T1

SIRAPID 3355

Tungsten-based HSS for cutting, woodworking and non-ferrous tools.

Achieved hardness: 64–66 HRC

1.3243 / M35

SIRAPID 3243

Cobalt-alloyed HSS for better hot hardness and cutting performance.

Achieved hardness: 64–66 HRC

1.3247 / M42

SIRAPID 3247

Cobalt HSS for demanding cutting tools needing high hot hardness.

Achieved hardness: 65–68 HRC

1.3346 / M1

SIRAPID 3346

For machining steel, Fe-alloys, non-ferrous metals and Sendzimir rolls.

Achievable hardness: min. 63 HRC

1.3344 / M3

SIRAPID 3344

High wear resistance for steel, wood, non-ferrous and plastics tooling.

Achievable hardness: min. 64 HRC

1.3351 / M4

SIRAPID 3351

For demanding cutting of steel, Fe-alloys and non-ferrous metals.

Achievable hardness: min. 64 HRC

1.3302 / T1 no Co

SIRAPID 3302

Tungsten HSS for machining steel, Fe-alloys, non-ferrous metals and Sendzimir rolls.

Achievable hardness: min. 65 HRC

Application Groups

Grades by application

Machining steel and Fe-alloys

SIRAPID 3343, 3355, 3346, 3344, 3302 and 3351.

Machining non-ferrous metals

SIRAPID 3343, 3355, 3346, 3344, 3302 and 3351.

Woodworking tools

SIRAPID 3343, 3355 and 3344.

Plastics treatment tools

SIRAPID 3343 and 3344.

Sendzimir rolls

SIRAPID 3343, 3346 and 3344.

Applications

Where SIRAPID is used

Drills and taps

Drill bits, twist drills and tap drills.

Milling cutters and reamers

Milling cutters and reamers for high-speed cutting.

Saw blades and broaches

Saw blades, saw segments, broaches and broach needles.

Rolls for cold rolling

Sendzimir rolls and rolls for cold rolling.

Industrial knivesTurning machine toolsPlaning machine toolsWear-resistant tool insertsWoodworking toolsTools for plasticsNon-ferrous machining toolsOther cold-work tools

Features

Hardness and wear resistance

Properties

Alloyed with molybdenum and tungsten.
High hardness, kept at elevated working temperatures.
High wear resistance and good shock resistance.

Use

Suitable for high-speed cutting and cold-work tools.
Cutting metal, wood, plastics and non-ferrous materials depending on grade.
Grades chosen by cutting performance and toughness requirement.

Product forms

Square sections 20 to 200 mm.
Flat sections 40 × 8 mm to 250 × 80 mm.
Round bars Ø7 to Ø200 mm, and electrodes.

Benefits

Why SIRAPID for cutting tools

Hardness for HSS tooling. High hardness kept at elevated operating temperatures.

Longer tool life. High wear resistance reduces tool wear and replacement frequency.

Shock resistance. Shock resistance under demanding cutting conditions.

Metal and non-metal. Suitable for both metal and non-metal tooling applications.

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

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