BrassesBeryllium-freeIn production
EnviB 1
CuZn40 · C28000
EnviB 1 is a CuZn40 machinable brass with a small iron addition and ultra-low lead content. The iron gives more strength and thermal stability while the alloy stays easy to machine, for optical and electronic parts under thermal stress.
220–400 MPaYield strength
410–550 MPaTensile strength
3–8 %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
- CW509L
Product and process qualifications are listed above. Customer approvals are confidential and are not disclosed.
Applications
Markets & applications
Applications
- High-precision optical components
- Electronic parts exposed to thermal stress
- Forged and machined parts for optical and electronic equipment

Why this grade
Iron addition for more strength and thermal stability, with good machinability kept.
Ultra-low lead content, at the same level as EnviB 158.
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