Lead-free alloys

Ready for the future of drinking water

Drinking water is our most important resource - essential for life and fundamental to our health. That is why the requirements for materials that come into contact with drinking water are increasing worldwide.

Diehl Brass Solutions offers a comprehensive portfolio of lead-free brass alloys specifically tailored to the requirements of modern drinking water applications. Our materials meet the strictest international standards and offer maximum safety, efficiency and environmental compatibility.

Free Initial Consultation on Lead-Free Alloys

Are you looking for a lead-free alternative or would you like to switch from your existing alloy? Our experts will support you in selecting the right material.

Contact us now and receive a free initial consultation.

eZeebrass & eZeedzr set new standards for drinking water applications

Thanks to its optimized composition, eZeebrass meets the highest requirements for machinability and processing. By incorporating magnesium as a chip breaker, eZeebrass produces short, easily manageable chips in machining and processing operations—fully automated and lead-free! With a copper content of 58% in the alloy, eZeebrass serves as the foundation for an economical transition to a lead-free world.

The alloy variant eZeedzr combines the excellent machinability of eZeebrass with dezincification resistance in accordance with DIN EN ISO 6509.

eZeecrimp – lead-free brass for electrical and formable components

eZeecrimp combines high electrical conductivity with excellent cold formability and good machinability. The alloy is therefore ideal for demanding electrical and electronic applications where lead-free materials and reliable formability are essential.

It’s eZee!

More information on the entire eZee Alloy Family

Cuphin – The Versatile Material Family for Installation Applications

The Cuphin material family has been an outstanding solution for a wide range of installation applications for years. Different Cuphin variants offer application-specific property profiles.

You can download the Cuphin brochure (Diehl 430/434) on the right-hand side of the website.

Well-known but Lead-free – CuZn42 and CuZn38As

The portfolio is completed by the standardized material CuZn42 (CW510L-DW), available in both a lead-free and a low-lead version. As a dezincification-resistant material in this product family, we offer CuZn38As (CW511L-DW). However, the machinability of these alloys cannot be compared to eZeebrass and Cuphin.

Diverse solutions. everything lead-free.

Download the data sheets by clicking on the alloy name.

	DIN EN Symbol	DIN EN UNS	Wt-% Cu	Wt-% Pb	Chip breaking element	Machinability %	Cold forming	Hot forming	Strength	DZR	Approval 4MSI/EUPL
eZeebrass Alloy 001	CuZn41Mg	CW732R-DW C49400	58	≤0,10	Mg: 0,4 %	85-95	⚫⚫⚪⚪	⚫⚫⚫⚫	⚫⚫⚪⚪	--	✅ / 2027
eZeecrimp Alloy 009	CuZn36Mg	CW734R C49450	62,5	≤0,10	Mg: 0,3 %	70-90	⚫⚫⚫⚫	⚫⚫⚪⚪	⚫⚫⚪⚪	--	WUPL not intended
eZeedzr Alloy 401	CuZn35MgPAs	CW733R C49500	64	≤0,10	Mg: 0,1-0,3 %	70-90	⚫⚫⚫⚪	⚫⚫⚪⚪	⚫⚫⚪⚪	acc. to ISO 6509	expected 2026 / 2027
Cuphin Alloy 430	CuZn21Si3P	CW724R-DW C69300	76	≤0,10	Si: 3,3 %	90-100	⚫⚫⚪⚪	⚫⚫⚫⚪	⚫⚫⚫⚫	acc. to ISO 6509	✅ / ✅
Cuphin Alloy 434	CuZn21Si3P	CW724R-DW C69305	76	≤0,10	Si: 2,8 %	85-100	⚫⚫⚪⚪	⚫⚫⚫⚪	⚫⚫⚫⚪	acc. to ISO 6509	✅ / ✅
Cuphin Alloy 330	CuZn21Si3P	CW724R-DW C69300	76	≤0,10	Si: 3,0 %	90-100	⚫⚫⚪⚪	⚫⚫⚫⚪	⚫⚫⚫⚫	acc. to ISO 6509	✅ / ✅
Cuphin Alloy 432	CuZn21Si3P	CW724R-DW ^(CC768S) C69300 ^(C87850)	76	≤0,10	Si: 3,3 %	85-95	⚫⚫⚪⚪	⚫⚫⚫⚪	⚫⚫⚫⚫	acc. to ISO 6509	✅ / ✅
Alloy 58	CuZn42	CW510L-DW	58	≤0,10	--	65-80	⚫⚫⚪⚪	⚫⚫⚫⚪	⚫⚪⚪⚪	--	✅ / ✅
Alloy 61	CuZn38As	CW511L-DW	63	≤0,10	--	30-40	⚫⚫⚫⚪	⚫⚫⚫⚪	⚫⚪⚪⚪	acc. to ISO 6509	✅ / 2027
Alloy 62	CuZn38As	CW511L-DW	63	≤0,20	--	40-50	⚫⚫⚫⚪	⚫⚫⚫⚪	⚫⚪⚪⚪	acc. to ISO 6509	✅
Alloy 57*	CuZn42	CW510L-DW	58	≤0,20	--	70-85	⚫⚫⚪⚪	⚫⚫⚫⚪	⚫⚪⚪⚪	--	✅ / ✅

*According to REACH definition not lead-free, but low-lead.

Diehl Brass Solutions - The strategic business field for semi-finished brass and copper products

As a strategic business unit of Diehl Metall, Diehl Brass Solutions stands for the development and production of high-quality semi-finished brass and copper products. With a broad portfolio of alloys - including lead-free and low-lead materials - as well as state-of-the-art casting, pressing and drawing processes, materials are created for demanding applications in industry, sanitary technology and mechanical engineering.

Learn more about Diehl Brass Solutions