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Granules manufactured by the GRANSHOT
method follow a normal size distribution diagram with
the peak at a diameter of about 15 mm.For the most common steel
grades the bulk density is about 4.5 Kg/l.Such a product is ideal
for investment casting foundries where a common chargeweight could
be 30Kg or less.The quantity of granules can be weighed with precision,
which saves the need for subsequant additions and allows improved
process control.
Granshot is a water granulation method.After
dewatering the granules are completely dried in a heating unit,
followed by oxide cleaning in a rotating machine.Granules for investment
casting foundries are packed in steel drums. |
 |
........Carbon and Low Alloy Steels.........
| COMPARABLE
SPECIFICATIONS |
| SS |
Werkstoff |
BS |
AFNOR |
ASTM
/ AISI |
| 1306 |
W.-Nr. 1.0409 |
CLA
9 |
|
STM
A 27
Grade 70-40 |
| 1505 |
W.-Nr.
1.0551
GS - 52 |
CLA
1B |
|
ASTM
A 732
Grade 2A , 2Q |
| 1606 |
W.-Nr.
1.0553
GS -60 |
AW
3 |
|
ASTM
A 732
Grade 4A, 4Q |
| 2225 |
W.-
Nr. 1.7219
GS - 26 CrMo4 |
|
|
ASTM
A 487
Grade 9 |
| 2244 |
W.
- Nr. 1.7225
GS - 42 CrMo4 |
|
|
ASTM
A 732
Grade8Q |
|
| NOMINAL
CHEMICAL COMPOSITION |
|
|
| SS |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Cu
|
Others |
EXAMPLE
OF CASTING APPLICATIONS |
| 1306 |
0.13
0.18 |
0.40
0.60 |
0.60
1.10 |
0.035 |
0.030 |
0.30 |
0.40 |
0.10 |
0.30 |
|
Machine
, Vehicle , Building and Household
machine applications. |
| 1505 |
0.30
0.40 |
0.40
0.60 |
0.60
0.80 |
0.0350 |
0.030 |
0.30 |
0.40 |
0.10 |
0.30 |
|
| 1606 |
0.45
0.60 |
0.40
060 |
0.60
0.80 |
0.035 |
0.030 |
0.30 |
0.40 |
0.10 |
0.30 |
|
| 2225 |
0.23
0.29 |
0.40
0.60 |
0.55
0.80 |
0.020 |
0.020 |
0.95
1.20 |
0.30 |
0.15
0.25 |
0.30 |
|
| 2244 |
0.38
0.45 |
0.40
0.60 |
0.65
0.90 |
0.020 |
0.020 |
0.95
1.20 |
0.30 |
0.15
0.25 |
0.30 |
|
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...........TOOL
STEELS..........................................................
top
| COMPARABLE
SPECIFICATIONS |
| SS |
Werkstoff |
BS |
AFNOR |
ASTM
/ AISI |
| 2140 |
W.-Nr. 1.2510
100MnCrW4 |
BO1 |
90MWCV5 |
AISIO1 |
| 2242 |
W.-Nr.
1.2344
G-X 40 CrMoV
5.1 |
BH
13 |
Z40
CDV 5 |
AISI
H13 |
| 2722 |
W.-Nr.
1.3343
S 6-5-2 |
BM
2 |
Z85
WDCV |
ASTM
A 600
Grade M 2 |
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| NOMINAL
CHEMICAL COMPOSITION |
|
|
| SS |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Cu
|
Others |
EXAMPLE
OF CASTING APPLICATIONS |
| 2140 |
0.85
1.0 |
0.25
0.40 |
1.10
1.30 |
0.025 |
0.020 |
0.45
0.60 |
0.30 |
0.10 |
0.25 |
V
0.05-0.15
W 0.40 -0.60
|
Vehicle,
Plastic and Tool Industry applications |
| 2242 |
0.35
0.42 |
0.90
1.20 |
0.35
0.60 |
0.025 |
0.020 |
5.1
5.5 |
0.20 |
1.2
1.6 |
0.10 |
V
0.85- 1.15 |
| 2722 |
0.82
0.90 |
0.30
0.50 |
0.25
0.40 |
0.030 |
0.030 |
3.7
4.5 |
0.40 |
4.5
5.5 |
0.30 |
V
1.7 -2.1
W 6.0 -7.0 |
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...........MARTENSITIC
STAINLESS STEELS...............................
top
| COMPARABLE
SPECIFICATIONS |
| SS |
Werkstoff |
BS |
AFNOR |
ASTM
/ AISI |
| 2302 |
W.-Nr. 1.4006
G-X 10Cr 13 |
ANC
1A |
Z12C
13M |
AISI
410 |
| 2303 |
|
ANC
1C |
Z40
CDV 5 |
ASTM
A 743
Grade CA -40 |
| 2321 |
W.-Nr.
1.4057
X 20 Crni 172 |
ANC
2 |
Z15
CN 16.02 |
AISI
431 |
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| NOMINAL
CHEMICAL COMPOSITION |
|
|
| SS |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Cu
|
Others |
EXAMPLE
OF CASTING APPLICATIONS |
| 2302 |
0.09
0.15 |
0.4
0.8
|
0.4
0.8 |
0.030 |
0.030 |
11.8
13.5 |
0.3 |
0.3 |
0.3 |
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Marine,
Surgical and cutlery applications. |
| 2303 |
0.18
0.25 |
1.1
1.5 |
0.4
0.8 |
0.030 |
0.030 |
12.2
14.0 |
0.3 |
0.3 |
0.3 |
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| 2321 |
0.14
0.23 |
1.0 |
1.0 |
0.040 |
0.030 |
15.5
17.5 |
1.5
2.5 |
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...........AUSTENITIC
STAINLESS STEELS................................. top
| COMPARABLE
SPECIFICATIONS |
| SS |
Werkstoff |
BS |
AFNOR |
ASTM
/ AISI |
| 2332 |
W.-Nr. 1.4301
X5 CrNi 1810 |
304C
15 |
Z7CN
18-09 |
AISI
304 |
| 2333 |
W.-Nr
1.4308
G-X 6 CrNi 18
9 |
ANC
3A |
Z6CN18.10M |
ASTM
A 351
Grade C8 |
| 2338 |
W.-Nr.
1.4550
X 6CrNiNB 18
10 |
ANC
3B |
Z
6CNNb 18.10M |
ASTM
A 351
Grade CF 8 C |
| 2343 |
W.-Nr.
1.4408
G-X 6 CrNiMo
18 10 |
ANC
4B |
Z
6 CND 18.12 M |
ASTM
A 351
Grade CF 6M |
| 2353 |
W.-Nr.1.4404
X 2 CrNiMo 17 13 2 |
316
S 11 |
2 CND 17 -12 |
AISI
316L |
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| NOMINAL
CHEMICAL COMPOSITION |
|
|
| SS |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Cu
|
Others |
EXAMPLE
OF CASTING APPLICATIONS |
| 2332 |
0.08 |
1.00 |
2.00 |
0.045 |
0.030 |
18.0
20.0 |
8.00
10.5 |
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Food,
Chemical, Medicine, Pulp and other process industry applications. |
| 2333 |
0.04
0.07 |
0.8
1.5 |
1.00
2.0 |
0.030 |
0.030 |
17.5
20.0 |
8.00
11.0
|
0.5
. |
|
|
| 2338 |
0.04
0.08 |
0.6
1.0 |
0.8
1.6 |
0.030 |
0.030 |
17.5
19.0 |
9.0
12.0 |
0.5 |
|
Nb 10 x C-10 |
| 2343 |
0.03
0.07 |
0.8
1.5 |
1.0
2.0 |
0.030 |
0.030 |
17.5
20.0 |
10.0
13.0 |
2.5
3.0 |
|
|
| 2353 |
0.03 |
1.00 |
2.00 |
0.045 |
0.030 |
16.0
18.0 |
10.0
14.0 |
2.00
3.00 |
|
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..........FERRITIC-AUSTENITIC
(DUPLEX)STAINLESS STEELS............................. top
| COMPARABLE
SPECIFICATIONS |
| SS |
Werkstoff |
BS |
AFNOR |
ASTM
/ AISI |
| 2327 |
W.-Nr. 1.4362
X2 CrNiN 23
4 |
|
Z3CN
23 -04Az |
UNS
S 32304 |
| 2377 |
W.-Nr
1.4462
X2 CrNiMoN |
318
S 13 |
Z3
CND 22 -05 |
ASTM
A 693
Grade 1630 |
|
| NOMINAL
CHEMICAL COMPOSITION |
|
|
| SS |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Cu
|
Others |
EXAMPLE
OF CASTING APPLICATIONS |
| 2327 |
0.030
|
1.00
|
2.00
|
0.035 |
0.020 |
22.0
23.5 |
4.0
5.50 |
|
|
N
0.05-0.15 |
Pulp
and paper industry, gas and oil applications |
| 2377 |
0.030 |
1.00 |
2.00 |
0.030 |
0.020 |
21.0
23.0 |
4.50
6.50 |
2.50
3.50 |
|
N 0.10-0.20 |
|
..........PRECIPITATION
HARDENING STAINLESS STEEL................................... top
| COMPARABLE
SPECIFICATIONS |
| SS |
Werkstoff |
BS |
AFNOR |
ASTM
/ AISI |
| 2395 |
W.-Nr. 1.4540
G-X4 CrNiCuNb
16 4 |
ANC
22 |
Z4
CNUNb 16.4 M |
ASTM
A 693
Grade 1630 |
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| NOMINAL
CHEMICAL COMPOSITION |
|
|
| SS |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Cu
|
Others |
EXAMPLE
OF CASTING APPLICATIONS |
| 2395 |
0.04
|
0.6
1.0 |
0.3
0.7 |
0.025 |
0.025 |
15.7
16.7 |
3.6
4.1 |
|
2.8
3.5 |
Nb
0.15-0.40
N<= 0.05
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Aurospace
,automobile and leisure industry |
|
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Importent
advantages and experiences |
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In
most types of furnaces granules melt quicker than conventional
material such as cuttings, powder and bars, so savings are
made energy with shorter heatcycles.In tests that were made
comparing CLA 2 bar stock with GRANSHOT granules,
the Uddeholm product showed an increase
in production rate of more than 21% and a reduction in power
consumption of more than 20%.The test results obtained in
melting GRANSHOT granules were acheived
through the furnace* with at least 50% of the total charge
weight ,and as soon as a heel had been established , the remaining
granuales were added in a steady stream.Whilst technique may
vary from one type of furnace to another,it is clear that
considerable savings can be accomplished by experimenting
and ascertaining the best charge method according to type
and size of furnace.It is not uncommon for investment casting
foundries to mix returning scrap of known quality with GRANSHOTS
granules and excellent melting results are documented.GRANSHOTS
are surface oxidation free, resulting in considerably less
slag than that found in ingot (bar) stock.
*Inductotherm
75KW,3000Hz, VIP Power Track(Coupled to 15Kg Duraline furnace)
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Bespoke
material |
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Uddeholm
manufactures GRANSHOTS in accordance
with customer's specification .All alloying is undertaken
and the granulated product is supplied in a ready - to- use
form immediate application in the furnace.For those foundries
which prefer in - house alloying , Uddeholm offers the advantage
of GRANSHOTS in the form of pure
iron.The GRANSHOT process also
lends itself to the production of non- ferrrous metals,e.g.
copper, brass and bronze.Further , Uddeholm Technology also
offers re- cycling of scrap.material sent to the Uddeholm
plant is remelted and composition adjusted prior to delivery
to the customer for direct reuse.
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| Böhler
Uddeholm Group company |
©
2007 ASSAB SRIPAD STEELS LTD.All Rights Reserved. |
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