Metallurgica San Marco produces a wide range of alloys that meet the standard requirements for the production of bars and profiles for various applications and different types of processing, such as mechanical processing, molding, and cold deformation.
The range of low lead and lead-free alloys complies with the new market demands and the emerging regulations.
In addition to the alloys already available in the range, MSM continues to invest significantly in research and development of new materials that can comply with the new regulations while minimizing their impact on the workability needs of users.
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| Alloy | Cu | Pb | Sn | Fe | Ni | Al | Mn | As | Si | Zn | Other | Notes | 4M Positive List | Free machining datasheet | Hot forging datasheet |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CW602N | 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 | Standard anti-dezincification alloy for hot forging |
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| CW603N | 60,0 62,0 |
2,5 3,5 |
≤ 0,2 | ≤ 0,3 | ≤ 0,2 | ≤ 0,05 | / | / | ≤ 0,03 | Diff | ≤ 0,2 | American standard alloy for machining with chip removal. |  |
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| CW608N | 60,0 61,0 |
1,6 2,5 |
≤ 0,2 | ≤ 0,2 | ≤ 0,3 | ≤ 0,05 | / | / | / | Diff | ≤ 0,2 | Standard alloy with high copper content for chip removal. Included in the 4MS Positive List. | |
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| CW610N | 59,0 60,5 |
0,2 0,8 |
≤ 0,2 | ≤ 0,2 | ≤ 0,3 | ≤ 0,05 | / | / | / | Diff | ≤ 0,2 | Standard low-lead alloy, also known as Muntz Metal. |
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| CW611N | 59,0 60,0 |
0,8 1,6 |
≤ 0,3 | ≤ 0,3 | ≤ 0,3 | ≤ 0,05 | / | / | / | Diff | ≤ 0,2 | Lead alloy for hot stamping. |
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| CW612N | 59,0 60,0 |
1,6 2,2 |
≤ 0,3 | ≤ 0,3 | ≤ 0,1 | ≤ 0,05 | / | / | ≤ 0,3 | Diff | ≤ 0,2 | High copper alloy. Included in the 4MS Positive List | |
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| CW614N | 57,0 59,0 |
2,5 3,5 |
≤ 0,3 | ≤ 0,3 | ≤ 0,3 | ≤ 0,05 | / | / | ≤ 0,03 | Diff | ≤ 0,2 | Standard alloy for machining with chip removal. Included in the 4MS positive list | |
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| CW617N | 57,0 59,0 |
1,6 2,5 |
≤ 0,3 | ≤ 0,3 | ≤ 0,1 | ≤ 0,05 | / | / | / | Diff | ≤ 0,2 | Standard alloy with high machinability and low lead content. Included in the 4MS Positive List. | |
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| CW625N | 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 | Anti-dezincification alloy with low lead content. | |
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| CW626N | 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 | Antidezincification alloy with low lead release. Included in the 4MS Positive List. | |
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| CW509L | 59,0 61,5 |
≤ 0,2 | ≤ 0,2 | ≤ 0,2 | ≤ 0,2 | ≤ 0,05 | / | / | / | Diff | ≤ 0,2 | Alloy high in copper and lead free. Included in the 4MS Positive List. Low lead alloy for hot stamping | |
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| CW510L 80 ppm | 57,0 59,0 |
≤ 0,008 | ≤ 0,3 | ≤ 0,3 | ≤ 0,2 | ≤ 0,05 | / | / | / | Diff | ≤ 0,2 | Lead-free hot forging alloy. Included in the 4MS Positive List. | |
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| CW510L Pb 0,1% | 57,0 59,0 |
≤ 0,1 | ≤ 0,3 | ≤ 0,3 | ≤ 0,2 | ≤ 0,05 | / | / | / | Diff | ≤ 0,2 | Lead free alloy. Included in the 4MS Positive List. | |
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| CW510L Pb 0,2% | 57,0 59,0 |
≤ 0,2 | ≤ 0,3 | ≤ 0,3 | ≤ 0,2 | ≤ 0,05 | / | / | / | Diff | ≤ 0,2 | Lead free alloy. Included in the 4MS Positive List. | |
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| CW511L Pb 0,1% | 61,5 63,5 |
≤ 0,1 | ≤ 0,1 | ≤ 0,1 | ≤ 0,3 | ≤ 0,05 | / | 0,02 0,15 |
/ | Diff | ≤ 0,2 | Lead-free anti-dezincification alloy. Included in the 4MS Positive List. | |
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| CW511L Pb 0,2% | 61,5 63,5 |
≤ 0,2 | ≤ 0,1 | ≤ 0,1 | ≤ 0,3 | ≤ 0,05 | / | 0,02 0,15 |
/ | Diff | ≤ 0,2 | Lead-free antidezincification alloy. Included in the 4MS Positive List. | |
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| CW724R | 75,0 77,0 |
≤ 0,2 | ≤ 0,3 | ≤ 0,3 | ≤ 0,2 | ≤ 0,05 | / | / | / | Diff | ≤ 0,2 | Ecobrass alloy. | |
Sustainability and Quality in perfect balance.
LIBRA is the new lead-free brass alloy that aims to achieve the perfect balance between environmental sustainability and material quality.
LIBRA is the premier alloy in Metallurgica San Marco’s range of lead-free alloys, achieving 100% recyclability and 100% recycled material content.
This alloy represents a significant step forward in the commitment to more eco-friendly and safer industrial practices, ensuring:
Sustainability Safety Innovation
A lead-free alloy designed to meet the demands of the most stringent markets and regulations, where attention to the materials used and the impact of the entire production chain is crucial.
Thanks to the UNI/PdR 88:2020 Certification, it meets the requirements for verifying the content of recycled and/or recovered and/or by-product materials present in products, following the highest and current sustainability standards.
PDR 88:2020
Requirements for verifying the recycled and/or recovered content of products.
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