HSS - High Speed Steel

◆Industrial GradeDesigned for high-speed machining
◈Grade ComparisonM2, M35 and M42 profiles
▦Technical DataComposition and properties
✓Application FocusCutting & precision machining
Featured material

HSS Steel Product Showcase

Browse high speed steel forms suited to high-speed cutting and precision tooling environments.

Product Portfolio
HSS steel bars
Product Showcase

High-Grade HSS Round Bars

High speed steel options for cutting tools requiring high red hardness and wear resistance.

M2 M35 and M42 steel blocks
Heavy Tooling

M2, M35 & M42 Tool Steel Stocks

Steel blocks and bars for drills, taps, milling cutters, and gear cutting tools.

Precision cutting tools
Precision Tooling

Steel for High-Speed Cutters

Explore material options for reamers, broaches, roughing cutters, and aerospace machining.

Compare materials

Steel Grades: M2, M35 & M42 (HSS)

Review key characteristics and technical data for tungsten and cobalt High Speed Steel grades.

Grade Portfolio
M2 steel bars M2 GRADE STEEL HSS M2

M2 High Speed Steel

Standard tungsten-molybdenum HSS offering well-balanced toughness, wear resistance, and red hardness.

Hardness (Annealed)240–280 HB
Hardness (Hardened)63–66 HRC
Tungsten (W)5.50–6.75%
Molybdenum (Mo)4.50–5.50%
Best for drills, taps & milling cutters View M2 data →
M35 steel blocks M35 GRADE STEEL HSS M35 (with Cobalt)

M35 High Speed Steel

5% cobalt alloyed high speed steel providing higher hot-hardness for hard material cutting.

Hardness (Annealed)250–290 HB
Hardness (Hardened)64–67 HRC
Cobalt (Co)4.50–5.50%
Carbon (C)0.82–0.92%
Best for reamers, broaches & gear cutters View M35 data →
M42 steel blocks M42 GRADE STEEL HSS M42 (with Cobalt)

M42 High Speed Steel

Premium 8% cobalt HSS designed for high hardness and extreme performance in aerospace machining.

Hardness (Annealed)260–300 HB
Hardness (Hardened)65–68 HRC
Cobalt (Co)7.50–8.50%
Molybdenum (Mo)9.00–10.00%
Best for aerospace machining & roughing View M42 data →
Where it works

Area of Applications

HSS steel grades (M2, M35 & M42) excel in industrial cutting tools and heavy machining tools.

Application Areas
DrillsM2 / M35 / M42

Drills

High-efficiency drill bits designed for high rotational speeds and deep hole penetration.

High Wear Resistance →
TapsM2 / M35

Taps

Precision thread cutting taps with high edge strength and chipping resistance.

Retains Sharp Edge →
Milling CuttersM2 / M35 / M42

Milling Cutters

End mills and face milling cutters built for continuous high-speed stock removal.

High Hot-Hardness →
ReamersM2 / M35

Reamers

Precision reaming tools ensuring accurate hole dimensions and fine surface finishes.

High Accuracy →
BroachesM2 / M35

Broaches

Heavy-duty internal and external broaching tools for complex geometric profiles.

High Toughness →
High-Speed CuttersM35 / M42

High-Speed Cutters

Industrial cutters maintaining sharp cutting edges under intense friction and heat.

Thermal Endurance →
Aerospace MachiningM42 GRADE

Aerospace Machining

Machining tough alloys, titanium, and stainless steels used in aerospace components.

Super Alloy Cutting →
Gear Cutters & Roughing CuttersM35 / M42

Gear & Roughing Cutters

Hobs, gear shapers, and roughing cutters for high-torque metal removal.

Extreme Abrasion Resistance →
Material reference

Technical Data

Chemical composition and mechanical properties for HSS (M2, M35 & M42).

M2 Grade · Chemical Composition (Weight %)
ElementComposition range
Carbon (C)0.78–0.88%
Tungsten (W)5.50–6.75%
Molybdenum (Mo)4.50–5.50%
Chromium (Cr)3.75–4.50%
Vanadium (V)1.75–2.20%
M35 Grade (with Cobalt) · Chemical Composition
ElementComposition range
Carbon (C)0.82–0.92%
Cobalt (Co)4.50–5.50%
M42 Grade (with Cobalt) · Chemical Composition
ElementComposition range
Carbon (C)1.05–1.15%
Cobalt (Co)7.50–8.50%
Molybdenum (Mo)9.00–10.00%
M2 Grade · Mechanical Properties
PropertyValue
Hardness (Annealed)240–280 HB
Hardness (Hardened)63–66 HRC
M35 Grade · Mechanical Properties
PropertyValue
Hardness (Annealed)250–290 HB
Hardness (Hardened)64–67 HRC
M42 Grade · Mechanical Properties
PropertyValue
Hardness (Annealed)260–300 HB
Hardness (Hardened)65–68 HRC

Note: Values shown are reference ranges for presentation purposes and may vary by standard, supplier, product form and heat treatment. Confirm material certificates and applicable standards before purchase or production use.

Looking for the Right HSS Steel Grade?

Review the material data and match the grade to your cutting tools and machining requirements.

Compare Technical Data