0715-ASPA-D-2
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Ancorsteel
Phosphorus Alloys
®
Ancorsteel phosphorus alloys are ferrous base
powders for P/M parts requiring superior
electromagnetic performance. Compared with
parts made from pure, high compressibility iron
powders, those made from the phosphorus alloys
have higher resistivity, permeability and
induction, and reduced coercive force. The
presence of phosphorus also decreases the
susceptibility of a P/M component to nitrogen
aging. Ancorsteel phosphorus alloys are produced
by making ferrophosphorus additions to the highly
compressible iron powders Ancorsteel 1000B or
Ancorsteel 1000C.
Components made from the phosphorus alloys
exhibit a good combination of tensile strength,
ductility, and impact absorption energy. The
particle size of the added ferrophosphorus is
important as it has a significant effect on these
properties. The ferrophosphorus powder should
be finer than 20 micrometers and preferably
should have a median particle size close to
10 micrometers.
The Hoeganaes Corporation products
Ancorsteel 45P and Ancorsteel 80P contain
0.45 and 0.80 weight % (w/o) phosphorus
respectively.
Typical applications for parts made from
Ancorsteel phosphorus alloys include speed
sensors, magnetic solenoids and plungers.
Hysteresis Loop with Initial (B-H) Curve
Induction (Gauss)
Maximum
Flux Density
Residual Induction
Coercive Force-Hc
Slope = [Relative]
Max. Permeability
Drive Field (Oe)
NORTH AMERICA Cinnaminson, NJ: +1-856-829-2220, tim.hale@hoeganaes.com
EUROPE Meerbusch, Germany: +49-2132-6598-20, klaus.vossen@hoeganaes.com
ASIA Seoul, Korea: +82-2-3486-4471, jongsik.na@hoeganaes.com
Pudong Shanghai, China: +86-21-2037-3950, oliver.he@hoeganaes.com
0715-ASPA-D-2
Data Sheet
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Ancorsteel Phosphorus Alloys
®
Typical Magnetic Properties
Grade
Ancorsteel 1000B
Compaction pressure, MPa (tsi)
415 (30)
550 (40)
690 (50)
Sintering temperature, ˚C (˚F) 1120 (2050) 1260 (2300) 1120 (2050) 1260 (2300) 1120 (2050) 1260 (2300)
Sintered density, g/cm3
6.79
6.80
7.09
7.12
7.26
7.28
[Relative] maximum
2100
2300
2600
2800
3000
3200
permeability, G/Oe
Maximum flux density, [T]
1.03
1.07
1.12
1.20
1.26
1.30
Maximum flux density, G
10300
10700
11200
12000
12600
13000
Residual induction, [T]
0.90
0.95
1.10
1.12
1.14
1.18
Residual induction, G
9000
9500
11000
11200
11400
11800
Coercive force, [A/m]
170
160
170
150
160
150
Coercive force, Oe
2.10
1.95
2.10
1.85
2.05
1.90
Grade
Ancorsteel 45P
Compaction pressure, MPa (tsi)
415 (30)
550 (40)
690 (50)
Sintering temperature, ˚C (˚F) 1120 (2050) 1260 (2300) 1120 (2050) 1260 (2300) 1120 (2050) 1260 (2300)
Sintered density, g/cm3
6.84
7.15
7.12
7.35
7.27
7.45
[Relative] maximum
2800
4200
2900
4000
3600
4500
permeability, G/Oe
Maximum flux density, [T]
1.10
1.30
1.25
1.32
1.30
1.39
Maximum flux density, G
11000
13000
12500
13200
13000
13900
Residual induction, [T]
0.95
1.10
1.07
1.05
1.14
1.19
Residual induction, G
9500
11000
10700
10500
11400
11900
Coercive force, [A/m]
140
110
140
110
140
100
Coercive force, Oe
1.80
1.40
1.80
1.35
1.75
1.30
Grade
Ancorsteel 80P
Compaction pressure, MPa (tsi)
415 (30)
550 (40)
690 (50)
Sintering temperature, ˚C (˚F) 1120 (2050) 1260 (2300) 1120 (2050) 1260 (2300) 1120 (2050) 1260 (2300)
Sintered density, g/cm3
6.86
7.15
7.16
7.30
7.34
7.41
[Relative] maximum
3800
4800
4500
5700
4500
6000
permeability, G/Oe
Maximum flux density, [T]
1.20
1.38
1.32
1.38
1.30
1.40
Maximum flux density, G
12000
13800
13200
13800
13000
14000
Residual induction, [T]
1.05
1.10
1.12
1.18
1.15
1.25
Residual induction, G
10500
11000
11200
11800
11500
12500
Coercive force, [A/m]
120
110
120
100
110
100
Coercive force, Oe
1.50
1.35
1.45
1.30
1.40
1.30
Sintering was done in a synthetic dissociated ammonia atmosphere for 30 minutes at temperature.
Typical magnetic properties were tested at a peak drive field of 1200 A/m (15 oersteds).
NORTH AMERICA Cinnaminson, NJ: +1-856-829-2220, tim.hale@hoeganaes.com
EUROPE Meerbusch, Germany: +49-2132-6598-20, klaus.vossen@hoeganaes.com
ASIA Seoul, Korea: +82-2-3486-4471, jongsik.na@hoeganaes.com
Pudong Shanghai, China: +86-21-2037-3950, oliver.he@hoeganaes.com
0715-ASPA-D-2
Data Sheet
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Ancorsteel Phosphorus Alloys
®
2400
60
40
20
1150
1200
1250
1300
Sintering Temperature (˚C)
0
1350
Elongation [% in 25.4 mm (1 incn)]
550
500
450
400
350
300
250
200
150
100
50
0
1100
Sintering Temperature (˚F)
2100
2200
2300
Tensile Strength (103 psi)
Tensile Strength (MPa)
Mechanical Properties - Ancorsteel 45P
20
Sintering Temperature (˚F)
2100
2200
2300
2400
15
10
5
0
1100
1150
1200
1250
1300
Sintering Temperature (˚C)
1350
1000
900
120
800
1150
1200
1250
1300
Sintering Temperature (˚C)
Sintering Temperature (˚F)
2100
2200
2300
1350
-0.5
-0.75
-1
-1.25
1100
160
60
50
40
1100
-0.25
2400
70
1150
1200
1250
1300
Sintering Temperature (˚C)
1350
2400
0
Impact Energy (Joules)
700
1100
80
Apparent Hardness (HRB)
140
0.25
Sintering Temperature (˚F)
2100
2200
2300
1150
1200
1250
1300
Sintering Temperature (˚C)
Sintering Temperature (˚F)
2100
2200
2300
1350
2400
140
100
120
80
100
80
60
60
40
40
20
20
0
1100
1150
1200
1250
1300
Sintering Temperature (˚C)
Impact Energy (ft. lbf)
2400
Dimensional Change (% from die size)
1100
Sintering Temperature (˚F)
2100
2200
2300
Transverse Rupture Strength (103 psi)
Transverse Rupture Strength (MPa)
UTS
Yield (0.2% offset)
0
1350
Samples compacted at 550 MPa (40 tsi) and sintered in a synthetic dissociated ammonia atmosphere
for 45 minutes at temperature.
IMPORTANT NOTICE: The data shown are based on laboratory processing standard test specimens. Results may vary from those obtained in production processing.
NORTH AMERICA Cinnaminson, NJ: +1-856-829-2220, tim.hale@hoeganaes.com
EUROPE Meerbusch, Germany: +49-2132-6598-20, klaus.vossen@hoeganaes.com
ASIA Seoul, Korea: +82-2-3486-4471, jongsik.na@hoeganaes.com
Pudong Shanghai, China: +86-21-2037-3950, oliver.he@hoeganaes.com