SCANA CREATES PROGRESS

Stellapur PM 4
Ultra Clean Powder Metallurgy Steel
Chemical composition
C
1,40

Cr
4,2

Mo
5,0

W
5,8

V
4,1

Standards:

Europe HS 6-5-4
W.Nr. 1.3351
AISI
M4

Delivery hardness
Max 260 HB

Stellapur PM 4. Capsule free machined block.

Characteristics

Stellapur PM 4 is a high V alloyed grade
for improved wear resistance. A suitable
grade for cold work applications. The
grade can easily be wire cut.
Recommended for PVD/CVD coating. For
nitriding max 2-15 µm is recommended.

Typical applications:
Cold work tools
Milling cutters
Blanking tools
Rolls

Punches
Dies
Taps
Broaches

Form supplied
Forging

Round
Flat/square
Rolling
Peeled
Flat black

90 – 380 mm
Max width 450 mm
Min thickness 40 mm
10 – 72 mm
Width 20 -260 mm
Thickness 5 – 55 mm

Profiles

On request

PM Block

400 x 500 x 2100 mm
400 x 500 x 1100 mm
400 x 500 x 1000 mm
400 x 250 x 1000 mm
500 x 200 x 1000 mm

Heat treatment

Soft annealing
O
O
Protective atmosphere 850 – 900 C followed by slow cooling at 10 C/h
O
down to 700 C. After that, air cooling.
Stress-relieving
O
O
600 – 700 C for approximately 2 hours and slow cooling down to 500 C.
Hardening
O
Protective atmosphere with pre-heating in 2 steps at 400 – 500 C and
O
850 – 900 C and austenitising at a temperature suitable for chosen hardness
O
followed by rapid cooling down to 40 – 50 C
Tempering
O
560 C three times for at least 1 hour each time.
O
Cooling to room temperature (20-30 C) between temperings.

Tempering temperatur
O
540, 560, 580 C

Austenitizing
temperature
O
HRC
C
59
1040
60
1060
61
1080
62
1100
63
1120
64
1150
65
1170
66
1200
Tempering
3 x at 560OC

Impact strength
Nm

HRC

Original
70 x 15 mm

SCANA STEEL SÖDERFORS AB Mellanverksvägen Box 104, SE-815 04 Söderfors Sweden
Tel. +46 293 177 00; www.scana.no