FREE MACHINING - ALMAG spa - Azienda Lavorazioni Metallurgiche ed Affini Gnutti

FREE MACHINING

ALMAG free machining bars guarantee consistency in terms of workability, mechanical properties, straightness and surface appearance. Their optimized chemical composition reduces tool wear and allows rapid setting times when production lots change. The metallurgical characteristics given to semi-finished products take into account the objectives of high durability and efficiency of the finished product in the specific fields of application. The needs for material healthfulness and respecting the environment favor the use of these materials due to their high economic and health sustainability.

Standard alloys
ALLOY Cu Pb Sn Fe Ni Al Mn As Si P Zn Others Design & ref to normative
39PB3 Min
Max
57,0
59,0
2,5
3,5
-
0,3
-
0,3
-
0,2
-
0,05
-
-
-
-
-
0,03
-
-
Diff.
.
.
0,2
CW614N
CuZn39Pb3
DIN 50930-6
DM 174 06/04/2004
Standard alloy for machining with chip removal.
TAV Min
Max
57,0
59,0
2,5
3,5
-
0,3
-
0,3
-
0,2
-
0,05
-
-
-
-
-
0,03
-
-
Diff.
-
-
0,2
CW614N
CuZn39Pb3
DIN 50930-6
DM 174 06/04/2004
Standard alloy for automatic free machining. Included in 4MS "Positive List".
QQB Min
Max
60,0
61,0
1,6
2,5
-
0,2
-
0,2
-
0,3
-
0,05
-
-
-
-
-
-
-
-
Diff.
-
-
0,2
CW608N
CuZn38Pb2
DM 174 06/04/2004
High copper content alloy for chip removal.
36PB3 Min
Max
60,0
62,0
2,5
3,5
-
0,2
-
0,3
-
0,2
-
0,05
-
-
-
-
-
0,03
-
-
Diff.
-
-
0,2
CW603N
CuZn36Pb3
DIN 50930-6
DM 174 06/04/2004
Standard alloy in the USA for machining with chip removal.
EURO Min
Max
57,0
59,0
1,6
2,2
-
0,3
-
0,3
-
0,1
-
0,05
-
-
-
-
-
0,03
-
-
Diff.
-
-
0,2
CW617N
CuZn40Pb2
DIN 50936-6
DM 174 06/04/2004
High machinability and hot plastic deformability alloy. Included in 4MS "Positive List".
PS Min
Max
59,0
60,0
1,6
2,2
-
0,3
-
0,3
-
0,1
-
0,05
-
-
-
-
-
0,03
-
-
Diff.
-
-
0,2
CW612N
CuZn39Pb2
DIN 50930-6
DM 174 06/04/2004
High copper content alloy for free machining. Included in 4MS "Positive List".
GSM Min
Max
59,6
60,0
1,9
2,2
-
0,3
-
0,3
-
0,1
-
0,05
-
-
-
-
-
0,03
-
-
Diff.
-
-
0,2
CW612N
CuZn39Pb2
DIN 50930-6
DM 174 06/04/2004
High copper content alloy for free machining. Included in 4MS "Positive List".
Low levels of lead
ALLOY Cu Pb Sn Fe Ni Al Mn As Si P Zn Others Design & ref to normative
LFB Min
Max
57,0
59,0
-
0,2
-
0,3
-
0,3
-
0,2
-
0,05
-
-
-
-
-
-
-
-
Diff.
-
-
0,2
CW510L
CuZn42

DIN 50930-6
DM 174 06/04/2004
Alloy with low lead content and optimised machinability. Certified NSF372 for USA market. Included in 4MS "Positive List".
OT60/40 Min
Max
59,0
61,5
-
0,2
-
0,2
-
0,3
-
0,2
-
0,05
-
-
-
-
-
-
-
-
Diff.
-
-
0,2
CW509L
CuZn40

DIN 50930-6
DM 174 06/04/2004
High copper content and low lead content alloy, also known as "Muntz metal". Compliant to USA market. Included in 4MS "Positive List".
610 Min
Max
59,0
60,5
0,2
0,8
-
0,2
-
0,2
-
0,3
-
0,05
-
-
-
-
-
-
-
-
Diff.
-
-
0,2
CW610N
CuZn39Pb0,5

DM 174 06/04/2004
Leaded Muntz Metal for mechanical machining.
Alloys resistant to corrosion
ALLOY Cu Pb Sn Fe Ni Al Mn As Si P Zn Others Design & ref to normative
CZ132 Min
Max
61,0
63,0
1,7
2,8
-
0,1
-
0,1
-
0,3
-
0,05
-
0,1
0,02
0,15
-
-
-
-
Diff.
-
-
0,2
CW602N
CuZn36Pb2As

DM 174 06/04/2004
Standard anti-dezincification alloy for chip removal.
CZ-LL Min
Max
61,5
63,5
-
0,2
-
0,1
-
0,1
-
0,3
-
0,05
-
-
0,02
0,15
-
-
-
-
Diff.
-
-
0,2
CW511L
CuZn38As
DIN 50930-6
DM 174 06/04/2004
Standard anti-dezincification alloy for the USA markek. Certified NSF372 and included in 4MS "Positive List".
CZA25 Min
Max
62,0
64,0
1,2
1,6
-
0,3
-
0,3
-
0,2
0,5
0,7
-
0,1
0,02
0,15
-
-
-
-
Diff.
-
-
0,2
CW625N
CuZn35Pb1,5AlAs
DIN 50930-6
DM 174 06/04/2004
Standard anti-dezincification alloy. Included in 4MS "Positive List".
CZA26 Min
Max
64,0
66,0
1,2
1,7
-
0,3
-
0,3
-
0,2
0,8
1,0
-
0,1
0,02
0,15
-
-
-
-
Diff.
-
-
0,2
CW626N
CuZn33Pb1,5AlAs
DIN 50930-6
DM 174 06/04/2004
Standard anti-dezincification alloy. Included in 4MS "Positive List".
Special alloys
ALLOY Cu Pb Sn Fe Ni Al Mn As Si P Zn Others Design & ref to normative
713R Min
Max
57,0
59,0
0,2
0,8
-
0,4
-
1,0
-
1,0
1,3
2,3
1,5
3,0
-
-
0,3
1,3
-
-
Diff.
-
-
0,2
CW713R
CuZn37Mn3Al2PbSi
Special alloy with high mechanical resistance and wear resistance.
SYD Min
Max
64,0
67,0
0,4
0,9
-
0,3
-
0,3
-
0,2
0,1
0,4
-
0,1
0,05
0,08
0,1
0,3
-
0,02
Diff.
-
-
0,2
CW725R
CuZn33Pb1AlSiAs
Anti-dezincification alloy with low lead release. Awaiting inclusion in the 4MS "Positive List".