ASP® 2004 high speed steel

ASP® 2004 is a high vanadium alloyed grade with high wear resistance and toughness suitable for cold work applications.

Applications

Punches
Dies
Rolls
Rotating multi-edge cutting tools
Milling cutters
Taps
Broaches

Physical Properties

Temperature	20°C	400°C	600°C
Density g/cm3	8.0	7.9	7.8
Modulus of elasticity kN/mm²	240	214	192
Thermal expansion ratio per °C	-	12.1x10 -6	12.7x10 -6
Thermal conductivity W/m°C	24	28	27
Speciﬁc heat J/kg°C	420	510	600

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/mm²

Reb = Bend yield strength in kN/mm²

Tot. work = Total work in Nm

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°C to 700°C for approximately 2 hours, slow cooling down to 500°C.
Hardening in a protective atmosphere with pre-heating 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 l hour each time. Cooling to room temperature < 25°C between tempering.

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.