Bronze Flanges
C89833 Lead-Free Bronze Flanges
A lead-free cast copper alloy considered for fittings, flanges and valve parts where lead content in wetted components is restricted.
Product overview
C89833 flanges are a lead-free option for water-handling systems. Drilling, facing and pressure rating are confirmed by drawing or standard with the company.
C89833 belongs to the family of lead-free cast bronzes developed to replace leaded alloys such as C83600 in applications where lead content is restricted – notably in potable-water and similar services. Machinability in these alloys is achieved through additions other than lead.
Whether a particular casting meets a drinking-water requirement depends on the applicable regulation, the exact composition, the product design and any third-party certification. This site does not claim compliance with any such scheme; those details must be verified with the company and the end-use regulator.
Material identification
| Item | Detail |
|---|---|
| UNS designation | C89833 |
| Material | Lead-Free Bronze |
| Alloy family | Lead-Free Bronze |
| Alloy type | Cast lead-free copper alloy |
| Product form | Flanges |
| Availability | Listed – sizes, tolerances and stock confirmed per inquiry |
Where it is used
- Lead-restricted water fittings and flanges
- Valve bodies and components
- Plumbing and fluid-handling hardware
- Instrumentation and manifold parts
Machining and fabrication
Designed to machine acceptably without lead; machinability differs from leaded alloys, so tooling and speeds should be reviewed. Casting soundness and pressure tightness are central to this grade’s use in fittings.
Forms and sizes
- Cast or machined flanges to drawing or standard – subject to confirmation
- Blind, slip-on, threaded and similar types – subject to confirmation
- Special-order flanges from wrought stock (e.g. C51000)
Standards, sizes, facings and ratings are confirmed with the company for each inquiry; none are published here. Do not rely on this page for dimensions, tolerances or stock.
What to include in your inquiry
- UNS grade and governing specification
- Dimensions (or drawing) and tolerance class
- Quantity and delivery timing
- Application and operating environment
- Certificate / inspection requirements
Composition reference
Composition limits for C89833 are not reproduced here pending technical review against the current edition of the applicable specification. They will be added once verified.
Commonly referenced specifications
- Applicable ASTM specification and any drinking-water compliance scheme (for example NSF/ANSI 61 and 372, or local equivalents) to be confirmed with the company
Related grades
Frequently asked questions
Does C89833 meet NSF/ANSI 61 or 372?
This website makes no certification claim. Compliance depends on the product and any third-party listing, which must be confirmed directly with the company.
Can I swap C89833 for C83600?
Not automatically. Properties, casting behaviour and dimensions should be reviewed against your specification.
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