BrassesBeryllium-freeIn production
EnviB 158
CuZn42
EnviB 158 is the ultra-low lead version of CuZn42 brass, compliant with CW510L. It machines well and holds its dimensions, for precision optical parts, sensitive electronic devices and luxury components.
220–400 MPaYield strength
430–550 MPaTensile strength
2–6 %Elongation
26 %IACSEl. conductivity
Specify this grade
Qualification packs are released after a short form. Export control applies.
Properties
Guaranteed values, by temper.
- Alloy family
- Brasses
- Chemistry family
- CuZn
- Lead-free
- Yes
Forms
Forms & dimensions available
Rods6 variant(s)
Wires6 variant(s)
Dimensional ranges and tolerances on request — machining and finishing are in house.
Standards
Standards & equivalences
- CW510L
Product and process qualifications are listed above. Customer approvals are confidential and are not disclosed.
Applications
Markets & applications
Applications
- High-precision optical components
- Sensitive electronic devices
- Luxury parts where surface quality matters

Why this grade
Ultra-low lead content, for parts under strict environmental rules.
Good machinability and high dimensional stability.
Resists atmospheric conditions, neutral and alkaline salt solutions and organic compounds.
Suited to cold and hot working, machining and flash welding.
Alternatives
If this grade is not the right trade-off.
GradeChemistryYield strengthChoose it when
412CuZnPb
413CuZnMnPb
58FCuZnPb
58LCuZnPb
58SCuZnPb
58YCuZnPb
60ACuZnPb
60PCuZnPb
60SBCuZnPb
61BCuZnPb
61CCuZnPb
61DCuZnPb
61USCuZnPb
62BCuZnPb
62CCuZnPb
62ZCuZnPb
63LCuZnPb
63NCuZnPb
Alloy 8521CuZnPb
E60STCuZn
E62DTCuZn
E63PCuZn
E63PGCuZn
E64BCuZn
E67CuZn
E85PGCuZn
E90CuZn
HT32CuZnAlMn
LB15CuZn
LBUCuZnPb
SML59FCuZnSn
SML61FCuZnSi
X133CuZnAlMn