ASP® 2042 Powder Metallurgy High-Speed Steel

Material available in round and flat sections

ASP® 2042 is a Powder Metallurgy High-Speed Steel grade with high hardness and high toughness. It is an upgraded material in particular in applications where standard M42 is traditionally used e.g. for laser-welded bi-metal saws with improve saw performance, thanks to its higher hardness and toughness. It is also recommended for high performance components.

Applications

For use on:

Physical Properties

Temperature	20°C	400°C	600°C
Density g/cm3	8.0	7.9	7.9
Modulus of elasticity kN/mm²	225 33x10 6	200 29x10 6	180 26x10 6
Thermal expansion ratio per °C	-	11.5x10 -6	11.8x10 -6
Thermal conductivity W/m°C	24	28	27
Speciﬁc heat J/kg°C	420	510	600

Heat Treatment

Soft annealing in a protective atmosphere at 850-900°C for 3 hours, followed by slow cooling at 10°C/h down to 700°C, then air cooling.
Stress-relieving at 600-700°C for approximately 2 hours, slow cooling down to 500°C.
Hardening in a protective atmosphere with preheating in 2 steps at 450-500°C and 850-900°C and austenitizing at a temperature suitable for chosen working hardness. Cooling down to 40-50°C.
Tempering at 560°C three times for at least 1 hour each time. Cooling to room temperature < 25°C between temperings.

4 point bend strength

Hardening temperature in °C

Original dimension Ø 6 mm

Tempering 3 x 1 hour at 560°C

Dimension of test piece Ø 4.7 mm

Rmb = Ultimate bend strength in kN/mm

Reb = Bend yield strength in kN/mm

Tot. work = Total work in Nm

Surface Treatment

The steel grade is a perfect substrate material for PVD coating. If nitriding is requested, a small diffusion zone is recommended but avoid compound and oxidized layers.

Guidelines For Hardening

Tempering temperature in °C

Hardness after hardening, quenching and tempering 3 x 1 hour

We supply a comprehensive range of special steel products.

Whether you need tool steels, conventional high-speed steels, or powder metallurgy grades, our friendly team is ready to help meet your requirements. We cut and supply steel products for our customers, across the UK and Ireland, and specialise in niche products as well as standard commercial grades.