SCANA CREATES PROGRESS

Stellapur PM 39
Ultra Clean Powder Metallurgy Steel
Chemical composition
C
1,60

Cr
4,8

Mo
2,0

W
V
10,5 5,0

Co
8,0

Standards:
Europe HS 10-2-5-8

Delivery hardness
Max 280 HB

Stellapur PM 39 peeled polished bar

Characteristics
Stellapur PM 39 is a high W alloyed Co
grade for high performance cutting tools
and cold work tools. The grade combines
high toughness with high wear resistance.
The grindability is excellent and the grade
is suitable for different kind of PVD
coatings.

Typical applications:
Gear cutting tools
End mills
Taps

Form supplied

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 austenitizing 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 tempering.

Forging
Round
Flat/square
Rolling
Pr machined
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

Tempering temperatur
540, 560, 580 OC

Austenitizing
temperature
O
HRC
C
59
980
60
1020
61
1040
62
1070
63
1100
64
1140
65
1170
66
1120
67
1240
Tempering
3 x at 560OC

Nm

HRC

Impact strength
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