Applications -
 
Pyrotechnic Aluminium powders
Parameters Particle Size-Wet Sieve Apparent Density
(loose pouring)
(g/cc)
Tap Density
(g/cc)
Burning Property
Fatty Matter
(%)
Iron
(%)
Acid insoluble
(%)
Surface area
(cm2/g)
Miscibility in water Active Aluminium
content
(%)
Total Aluminium

(%)
PSD- D(50%)
(μm typical)
Application
> 250 mesh
(%)
< 325 mesh
(%)
Spreading
(sec)
Glowing
(sec)
Test Methods Trade Mark
(ISO-1247) (In-house) (ISO-3953 / IS-8871) (In-house) (ISO-1247) (AAS) (Gravimetry) (ASTM C-204) (In-house) (IS-438) (volumetry) (Malvern-2000)
000 -- 97 min 0.40 – 0.50 0.90 – 1.10 25 - 60 10 - 30 1.0 max 1.0 max 0.1 max 8000-13000 wettable 73 min 85 min 10 Thermit Welding
555 -- 85 - 97 0.21 – 0.26 0.52 – 0.68 25 - 60 10 - 30 1.0 max 1.0 max 0.1 max 14000-18000 wettable 80 min 87 min 17 Thermit Welding
999 -- 80 - 90 0.15 – 0.19 0.42 – 0.52 25 - 60 10 - 30 1.0 max 1.0 max 0.1 max 14000-22000 non-wettable 83 min 89 min 25 Thermit Welding
999 S -- 85 - 95 0.15 – 0.19 0.42 – 0.52 25 - 60 10 - 30 1.0 max 1.0 max 0.1 max 16000-22000 non-wettable 83 min 89 min 23 Thermit Welding
LD 999 -- 80 - 90 0.08 – 0.11 0.23 – 0.33 25 - 60 10 - 30 1.0 max 1.0 max 0.2 max 25000-31000 non-wettable 83 min 90 min 26 Thermit Welding
666 -- 65 - 75 0.12 – 0.14 0.30 – 0.38 40 - 80 10 - 30 1.5 max 1.0 max 0.1 max 11000-16000 non-wettable 90 min 94 min 30 Thermit Welding
666-O -- 60 - 75 0.09 – 0.12 0.27 – 0.35 40 - 80 10 - 30 1.5 max 1.0 max 0.1 max 16000-21000 non-wettable 90 min 94 min 35 Thermit Welding
222 -- 80 min 0.11 – 0.18 0.30 – 0.43 40 - 80 10 - 30 4.0 max 1.0 max 0.1 max 17000-25000 non-wettable 87 min 90 min 20 Thermit Welding
444 2 max 40 - 50 0.08 – 0.12 0.20 – 0.35 Nil Nil 1.0 max 1.0 max 0.1 max 8000-12000 non-wettable 93 min 96 min 60 Thermit Welding
FP-33 2 max 35 - 50 0.13 – 0.16 0.32 – 0.38 Nil Nil 1.0 max 1.0 max 0.1 max 8000-11000 non-wettable 94 min 96 min 55 Thermit Welding
333 2 max 35 - 50 0.10 – 0.13 0.25 – 0.35 Nil Nil 1.0 max 1.0 max 0.1 max 8000-12000 non-wettable 94 min 96 min 65 Thermit Welding
333-S 2 max 30 - 50 0.12 – 0.14 0.22 – 0.30 Nil Nil 1.0 max 1.0 max 0.1 max 8000-12000 non-wettable 94 min 96 min 68 Thermit Welding
Wet sieving with mineral spirit as rinsing liquid.
AAS-atomic Absorption Spectrophotometer
Flake
 
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