BrassesBeryllium-freeIn production
Si45Z
CuSi3Fe2Zn3 · C65620
Si45Z is a CuSi3Fe2Zn3 copper-silicon alloy compliant with AMS4616, supplied as cold worked bars. It swages well and resists galling and wear, for bearing cages and engine rotor bars in aircraft and for valve guides.
140–340 MPaYield strength
390–540 MPaTensile strength
12–30 %Elongation
90–150 HBHardness HB
Specify this grade
Qualification packs are released after a short form. Export control applies.
Properties
Guaranteed values, by temper.
- Alloy family
- Brasses
- Chemistry family
- CuSiFeZn
- Lead-free
- Yes
Forms
Forms & dimensions available
Bars3 variant(s)
Dimensional ranges and tolerances on request — machining and finishing are in house.
Standards
Standards & equivalences
- AMS4616
Product and process qualifications are listed above. Customer approvals are confidential and are not disclosed.
Applications
Markets & applications
Applications
- Bearing cages for aeronautics
- Rotor bars for engines
- Retainers and spacers
- Valve guides
- Bushings and gears for hydraulic components
Why this grade
Swages well, for parts that are heavily deformed during manufacture.
Resists galling and metal-to-metal wear, with good antifriction properties.
Low magnetic permeability.
Good resistance to oxidation and good machinability.
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