1. Chase Brass CMX Green Dot ROd ECO BRASS Ingot ® Partners With & TM
An Eco Brass Alloy
&
ECO BRASS Ingot
Chase Brass
Partners With
CMX
               

2. ECO BRASS Ingot ® Green Dot ROd &TM
An Eco Brass Alloy
&
Sambo Copper “ECO BRASS ®” - a new alloy for the 21st Century
Green Dot™ and ECO BRASS® is a lead-free brass alloy developed by Sambo Copper Alloy Company. The alloy has superior performance and properties compared to existing silicon brasses or leaded yellow brasses.
Chase Brass has the exclusive license for the distribution and production of Green Dot™ and ECO BRASS® in North America including the United States, Canada and Mexico. It markets the products under the brand names Green Dot™ for rod products and ECO BRASS ® for ingot products. Chase Brass is proud to announce that we have chosen California Metal-X along with Ingot Metal Company to be the sole manufacturers licensed to produce ECO BRASS ® ingot in the North America.
               

3. ECO BRASS Ingot ® Green Dot ROd Industry Issues: &TM
An Eco Brass Alloy
&
Industry Issues:
Lead legislation
Dezincification resistance
Stress corrosion cracking resistance
Strength characteristics
Cost
Global availability
Growth of copper alloys through improved performance
Machinability / productivity
Forgeability
Castability
Plating and joining
               

4. Green Dot ROd CMX INGOT DIEHL METAL DOWA NIPPON OHKI KAIMEITM
An Eco Brass Alloy
DIEHL
METAL
DOWA
NIPPON
OHKI
INGOT
KAIMEI
CMX
Eco Brass global families
CHASE
BRASS
               

5. ECO BRASS Ingot ® Green Dot ROd & An Eco Brass AlloyTM
An Eco Brass Alloy
&
Examples of Green Dot and ECO BRASS machined parts, forgings and castings.
               

6. ECO BRASS Ingot ® Green Dot ROd Potential uses: &TM
An Eco Brass Alloy
&
Drinking water applications – rod, forgings and castings
Fire protection devices
Forgings or castings for ball valves (no-lead and stainless applications)
Forgings for shower valve
Water meter body castings
Automotive parts: lead-free requirements
European electrical/electronic parts: lead-free requirements
Substitute for free-machining stainless steel in general applications
Potential uses:
               

7. GREEN DOT™ Rod PropertiesTM
An Eco Brass Alloy
Product Comparison
GREEN DOT™ Rod Properties
               

8. Green Dot ROd Rod Alloys An Eco Brass Alloy ALLOY Copper (%) LeadTM
An Eco Brass Alloy
Green Dot™ provides good machinability without lead by substituting silicon.
Rod Alloys
ALLOY
Copper
(%)
Lead
Silicon
Phos.
Zinc
C36000 (Blue Dot™)
ASTM B16
61.5
2.7 - 35
C37000 (Low lead)
ASTM B124
59.5
59.0 – 62.0
1.2
0.8 – 1.5 39
C37700 (Forging alloy)
58.5
1.8
C69300 (Green Dot™)
ASTM B371, B124, B283
75.0
73.0 – 77.0
0.09 max.
3.0
2.7 – 3.5
0.09
0.03 – 0.16 21
               

9. Green Dot ROd An Eco Brass AlloyTM
An Eco Brass Alloy
Comparison of Typical Rod Mechanical Properties For Half Hard Temper Round Rod.
               

10. Green Dot ROd An Eco Brass AlloyTM
An Eco Brass Alloy
Comparison of Typical Rod Mechanical Properties
              

11. GREEN DOT™ for Forging Applications
Green Dot ROd TM
An Eco Brass Alloy
Product Comparison
GREEN DOT™ for Forging Applications
               

12. Hot Compression Test Results
Green Dot ROd TM
An Eco Brass Alloy
Forgeability of Green Dot™ is rated at 95% of C37700 while forging tensile strength is about 20% higher.
C69300 Green Dot™
C37700
Hot Compression Test Results
Forging Temperature (from left). 1060F, 1150F, 1275F, 1380F, 1500F
               

13. Green Dot ROd 22 15 7 980 1160 1340 1520 Forging Pressure (ksi)TM
An Eco Brass Alloy
Forging pressures for Green Dot™ are similar to C37700 forging alloy. 22 15
Forging Pressure (ksi)
Green Dot™ 7
C37700
980
1160
1340
1520
Temperature (F)
               

14. Green Dot ROd Forgeability Data An Eco Brass AlloyTM
An Eco Brass Alloy
Forgeability of the Green Dot water meter cap is 95% of C37700
Forgeability Data
Production volume: 1,650,000
Forgeability rating: 95 – 100%
Forging cracks: Fewer than C377
Forging pressure: Higher than C377
Productivity: ~ 95 %
Forging tool life: No change from C377
Slugging tool life: Sharpen every 20, slugs
Slugging productivity: 12 per minute vs. 17 for C377 (1.575” rod)
               

15. Green Dot ROd Machinability Data An Eco Brass AlloyTM
An Eco Brass Alloy
Machinability of the Green Dot water meter cap is % of C37700
Machinability Data
Production volume: 1,650,000
Machinablility rating: 90 – 95%
ID Turning parameters: rpm, 0.005”/rev
Tool regrinding: 2,000 forgings
Tool life: 70% of C377
               

16. ECO BRASS® Casting Alloys
Product Comparison
ECO BRASS® Casting Alloys
               

17. ECO BRASS ® ALLOY Copper (%) Lead Silicon Tin Phos. Zinc
ECO BRASS® casting alloy chemistry is the same as for rod.
ALLOY
Copper
(%)
Lead
Silicon
Tin
Phos.
Zinc
C83600
85.0
5.0 -
C84400
81.0
7.0
3.0
9.0
C87500 82
4.0
14.0
C % Se, 1.9% Bi
86.0
5.5
C % Ni, 2.2% Bi *
89.0
C92200
88.0
1.5
6.0
4.5
C87850
ASTM B30, B584, B806
76.0
0.09 max.
0.30
0.12 20
Rem.
C87500 silicon brass has higher strength than ECO BRASS C87850
Cutting resistance of C87500 is higher than that of ECO BRASS and it was observed that the chips yielded during drilling got stuck in the drill hole.
Thermal conductivity of ECO BRASS is ranked “low” among copper based alloys although it is still “high” compared to stainless steels.
C87500, which contains 1% more silicon than ECO BRASS, has even lower thermal conductivity.
When thermal conductivity is low, chips tend to be stuck drilled holes and other problems may occur as well.
C87500 has good machinability among those conventional lead free copper alloys.
The matrix of C87500 containing 4% of silicon is kappa phase since the amount of kappa phase increases in proportion to the amount of silicon.
In ECO BRASS, alpha phase is the matrix with the dispersed precipitation of kappa and gamma phases.
The difference in microstructures explains the higher ECO BRASS machinability.
Temperature range of solidification becomes broader as silicon concentration increases. The broader the range becomes, the more defects such as cracks and shrinkage cavity may occur. Therefore, ECO BRASS is superior to C87500 as a casting alloy.
* C83600 version
               

18. ECO BRASS
Comparison of Typical Sand Cast Mechanical Properties – Leaded and Lead-Free Alloys
Sample taken from the runner of a water meter cast by low-pressure casting method. The data shows the average elongation of 28% and the average tensile strength of 62 ksi based on 20 samples.
Mechanical properties of continuous casting rods are as follows:
80 mm Octagon (3.15”)
UTS = 65 ksi
Elongation = 35%
45 mm Round (1.77”)
Elongation = 40%
No silicon oxide problems have been experienced when melting scrap in terms of polishing or plating problems.
               

19. ECO BRASS ® ECO BRASS and Silicon Brass Typical Mechanical Properties
Sample taken from the runner of a water meter cast by low-pressure casting method. The data shows the average elongation of 28% and the average tensile strength of 62 ksi based on 20 samples.
Mechanical properties of continuous casting rods are as follows:
80 mm Octagon (3.15”)
UTS = 65 ksi
Elongation = 35%
45 mm Round (1.77”)
Elongation = 40%
No silicon oxide problems have been experienced when melting scrap in terms of polishing or plating problems.
               

20. ECO BRASS ® Liquidus and Freezing Range Temperature Comparisons
Sample taken from the runner of a water meter cast by low-pressure casting method. The data shows the average elongation of 28% and the average tensile strength of 62 ksi based on 20 samples.
Mechanical properties of continuous casting rods are as follows:
80 mm Octagon (3.15”)
UTS = 65 ksi
Elongation = 35%
45 mm Round (1.77”)
Elongation = 40%
No silicon oxide problems have been experienced when melting scrap in terms of polishing or plating problems.
               

21. ECO BRASS
The microstructure of cast ECO BRASS® vs. C83600.
ECO BRASS®
C83600
               

22. ECO BRASS ® FOUNDRY PROPERTY SIMILAR TO:
General Comments on ECO BRASS® Casting Behavior.
FOUNDRY PROPERTY
SIMILAR TO:
Permanent Mold Casting
Leaded Yellow Brasses
Dross Formation
C87800
Fluidity -
Fuming
C83600
Shrinkage and Cracking
Short Freezing Range Alloys
Shrinkage Allowance
C84400 (3/16” per foot)
               

23. Low Pressure Permanent Mold Casting
ECO BRASS
Samples of ECO BRASS castings
Low Pressure Permanent Mold Casting
Green Sand Casting
Since 2000, over five million ECO BRASS water meter bodies have been cast and put into service in Japan. No leaking or corrosion defects have been experienced.
               

24. ECO BRASS
Chase Brass & Copper Co. Inc signed sub-license agreements with California Metal-X of Los Angeles, CA and Ingot Metal Company of Toronto to produce and sell ECO BRASS Ingots for the North American marketplace.
CMX has been a manufacturer of brass and bronze ingots for over 25 years.  They have a monthly capacity of over 4+ million pounds producing over 30 alloys including silicon brasses.
               

25. Machinability Information
ECO BRASS Ingot
Green Dot ROd TM
An Eco Brass Alloy
&
Machinability Information
               

26. ECO BRASS Ingot ® Green Dot ROd & ά ά κ+γ An Eco Brass AlloyTM
An Eco Brass Alloy
&
The microstructure of Green Dot™ results in excellent machinability and surface finish. ά
Lead ά
κ+γ
100X
100X
400X
400X
Green Dot™ Rod (C69300)
Blue Dot™ Rod (C36000)
               

27. ECO BRASS Ingot ® Green Dot ROd & ά κ+γ ά An Eco Brass AlloyTM
An Eco Brass Alloy
&
The multiple phases in Green Dot™ result in higher machinability (70-80%) than conventional silicon brass (30%) ά
κ+γ ά
The C69400 microstructure is from the Copper Dev. Assoc. Website.
Nominal Composition of Sample:
Cu , Si , Zn , Fe 0.20, Pb 0.30
Approximate magnification of both micrographs is 400X
C69300 Green Dot™ ROD
C69400 Silicon Red Brass
               

28. ECO BRASS Ingot ® Green Dot ROd & Green Dot™ Rod Free-Cutting BrassTM
An Eco Brass Alloy
&
The kappa and gamma phases in the alpha matrix create small, Type 1 chips, similar to lead in C36000.
Green Dot™ Rod
Free-Cutting Brass
60 Cu – 40 Zn
               

29. ECO BRASS Ingot ® Green Dot ROd & An Eco Brass AlloyTM
An Eco Brass Alloy
&
Machinability of Green Dot™ is 70-80% of C36000 (1)
(1) Plunge tests: AISI T15 high speed steel, 5% Cimperial 1070 cutting fluid; drill test: high speed steel, straight oil.
               

30. Green Dot ROd An Eco Brass AlloyTM
An Eco Brass Alloy
Cutting Force, Drilling Force and Surface Finish – Relative Values. (1)
Machining Parameters
Turning – 1575 ipm; ipr; 0.039” cut depth
Drilling – 0.138” dia.; ipr; 1250 rpm
Surface Finish – 4330 ipm for brasses; 1970 ipm for 303;
(1) Based on data from Sambo. Relative values calculated using best value as denominator.
               

31. Green Dot ROd An Eco Brass AlloyTM
An Eco Brass Alloy
Compared to 303 stainless steel, Green Dot requires 60 – 70% less force to turn.
Coolant: Blasocut 40NF
Top rake: 18º: lead angle: +2º; side clearance 5º
Insert: Manchester Tool MTC-PT (M43 with TiAlN coating)
               

32. ECO BRASS
Machinability Comparison Between ECO BRASS, Leaded and Lead-Free Copper Alloys
Sample taken from the runner of a water meter cast by low-pressure casting method. The data shows the average elongation of 28% and the average tensile strength of 62 ksi based on 20 samples.
Mechanical properties of continuous casting rods are as follows:
80 mm Octagon (3.15”)
UTS = 65 ksi
Elongation = 35%
45 mm Round (1.77”)
Elongation = 40%
No silicon oxide problems have been experienced when melting scrap in terms of polishing or plating problems.
               

33. ECO BRASS Ingot ® Green Dot ROd & An Eco Brass AlloyTM
An Eco Brass Alloy
&
The CuZnSi particles which improve machinability do not cause warm brittleness cracking
               

34. ECO BRASS Ingot ® Green Dot ROd Corrosion Resistance & TM
An Eco Brass Alloy
&
Corrosion Resistance
               

35. ECO BRASS Ingot ® Green Dot ROd & C69300 Green Dot™ C36000 TM
An Eco Brass Alloy
&
Phosphorus and lower zinc levels in Green Dot™ give it measurably superior resistance to dezincification.
Corrosion depth after ISO6509  dezincification test
(12.7 g/l CuCl2.2H2O for 24 hrs. at 167F).
This type of performance applies to rod, forgings and castings.
C69300 Green Dot™
C36000
Maximum corrosion depth of C360 and C377 = 0.04" (1.0mm) while Green Dot™ is almost zero.
               

36. Green Dot ROd An Eco Brass AlloyTM
An Eco Brass Alloy
Comparison of ISO 6509 test results shows ECO BRASS excellent dezincification resistance.
Cross-hatched bars indicates dezincification occurred. Solid bars indicate there was general corrosion only.
Corrosion Depth (μm)
              

37. ECO BRASS Ingot ® Green Dot ROd & An Eco Brass AlloyTM
An Eco Brass Alloy
&
Silicon, low zinc, high strength levels: These give Green Dot™ high stress corrosion cracking resistance.
No cracks
JIS A Test: (Japanese Industrial Standard)
NH4OH (11.8% min.),
2 hrs., 68F; 1500 kgf torque
CES A Test: (Communication Equipment Standard - Japan)
NH4Cl + NaOH (pH 10), 72 hrs., 68F; 1500 kgf torque
Mattsson Test: (ASTM G ) (NH4SO4 + CuSO4-5H2O + NH4OH), no minimum time, 68F, 1500 kgf torque
               

38. ECO BRASS Ingot ® Green Dot ROd & An Eco Brass AlloyTM
An Eco Brass Alloy
&
Maximum corrosion depth of ECO BRASS® in various corrosive environments.
               

39. ECO BRASS Ingot ® Green Dot ROd & An Eco Brass AlloyTM
An Eco Brass Alloy
&
Corrosion rates in hydrochloric and sulfuric acids.
               

40. ECO BRASS Ingot ® Green Dot ROd Joining and Plating & TM
An Eco Brass Alloy
&
Joining and Plating
               

41. ECO BRASS Ingot ® Green Dot ROd & SOLDER TYPE 97 Sn – 3 SbTM
An Eco Brass Alloy
&
Resin fluxes and solder pastes containing chlorine compounds are required for the best solderability.
SOLDER TYPE
97 Sn – 3 Sb
95 Sn – 5 Sb
Bridgit Solder
Sn – 5 Sb – 3 Cu – 0.2 Ni
               

42. American Welding Society Designation
ECO BRASS Ingot
Green Dot ROd TM
An Eco Brass Alloy
&
Brazing tests proved that Green Dot and ECO BRASS can be brazed using commercial brazing alloys
BRAZING ALLOY TYPE
American Welding Society Designation
30% Cu – 28% Zn - 40% Ag – 2% Sn
(AWS A5.8, Class BAg-28)
Cu – 5%P – 15% Ag
(AWS A5.8, Class BCuP-5)
Cu – 7%P – 6% Ag (1)
(AWS A5.8, Class BCuP-4)
Cu – 6%P – 5% Ag (2)
(AWS A5.8, Class BCuP-3)
Cu – 6%P – 2% Ag (2)
(AWS A5.8, Class BCuP-6)
Most popular in the faucet industry
Produced braze with C11000 tube that had the same breaking force as with C36000
               

43. ECO BRASS Ingot ® Green Dot ROd & An Eco Brass AlloyTM
An Eco Brass Alloy
&
Polishing, buffing and plating characteristics of this alloy are excellent
Green Dot machined parts & forgings and ECO BRASS castings have been:
Polished and buffed
Chrome or nickel plated
Teflon coated
Pre-cleaning: acid or caustic systems work well.
A copper strike helps pass more stringent corrosion tests, e.g. 96 hour CASS (ASTM B368-97) but is not required for cosmetic plating
               

44. ECO BRASS Ingot ® Green Dot ROd Precautionary Statement &TM
An Eco Brass Alloy
&
Precautionary Statement
Green Dot™ and ECO BRASS® uses silicon instead of lead to attain good machinability and excellent mechanical and physical properties.
Because of its silicon content, Green Dot™ and ECO BRASS® scrap must never be mixed with leaded brass scrap because of contamination and safety problems. If silicon is found in leaded brass scrap, the load will be immediately rejected and will jeopardize the total scrap stream.
To highlight its difference from leaded brass rod, a special, green tag will be attached to every bundle of Green Dot™ and ECO BRASS® with a precautionary statement, disposal and recycling information.
We are in the process of establishing sources which will buy your Green Dot™ and ECO BRASS ® scrap.
        Never mix Green Dot™ or ECO BRASS® scrap with leaded brass alloys.