Injection Molding
Tooling and molding for your repeat plastic parts.
Bronze Machining for Your Custom Parts
For your bronze machining services inquiry, start with the shaft, housing and working contact. Custom bronze machining needs the exact alloy, stock route, final clearance and lubrication requirements before a route can be agreed.
4 Alloy Starting PointsSeparate bearing, spring and loaded-part needs.
Your Mating PartsReview shaft, housing and installed fit.
Lubrication & ContactSpecify load, movement and operating medium.
Your Final RecordsAgree material identity and inspection scope.
Bronze Alloy Selection for Machined Parts
Select the exact alloy around load, movement, mating material and lubrication. The casting or wrought route and supplied condition matter as much as the short bronze name.
C93200 Leaded Tin Bronze — Your Selection Review
For your flanged bush, define shaft and housing geometry, oil ports, groove ends and final running clearance. C93200 is a solid leaded tin bronze reference; it is not an oil-impregnated sintered material.
| Your reference | What to approve |
|---|---|
| UNS designation | C93200 |
| European comparison | CuSn7Zn4Pb7-C / CC493K · qualified comparison |
| Selected composition · wt.% | Cu 81–85; Pb 6–8; Sn 6.3–7.5; Zn 2–4 |
| Stock and final condition | Product form, route, supplied state and usable allowance. |
| Your working fit | Mating parts, installed dimensions and receiving scope. |
Selected Concast ASTM B505/B505M-23 chemistry. Cu minimum may be calculated as Cu + Ni; other limits and the complete specification still apply. European casting limits differ.
View Your C93200 Machining Details →
C95400 Aluminum Bronze — Your Selection Review
For your loaded sleeve or wear component, agree casting route, stock allowance, supplied state and final bearing lands. An alloy name does not establish your assembly load capacity.
| Your reference | What to approve |
|---|---|
| UNS designation | C95400 |
| European comparison | CuAl10Fe2-C / CC331G · supplier comparison |
| Selected composition · wt.% | Cu ≥83; Al 10–11.5; Fe 3–5; Ni ≤1.5 |
| Stock and final condition | Product form, route, supplied state and usable allowance. |
| Your working fit | Mating parts, installed dimensions and receiving scope. |
Selected Concast ASTM B505/B505M-23 chemistry; Ni includes Co. The European casting name is a qualified supplier comparison, with different limits; do not merge acceptance ranges.
View Your C95400 Machining Details →
C51000 Phosphor Bronze — Your Selection Review
For your formed contact strip or specified machined feature, define stock form, supplied temper, bend direction and the final working geometry. Do not assume that a spring strip and a bearing casting use the same route.
| Your reference | What to approve |
|---|---|
| UNS designation | C51000 |
| European comparison | CuSn5 / CW451K · supplier comparison |
| Selected composition · wt.% | Sn 4.2–5.8; P 0.03–0.35; Cu remainder |
| Stock and final condition | Product form, route, supplied state and usable allowance. |
| Your working fit | Mating parts, installed dimensions and receiving scope. |
Selected Concast ASTM B139/B139M-12(2024) reference. Combined Cu + named elements ≥99.5 is not a pure-copper minimum; form, temper and full limits govern.
View Your C51000 Machining Details →
C63000 Nickel Aluminum Bronze — Your Selection Review
For your carrier or loaded interface, agree product form, supplied and final condition, working land and mounting relationship. Machining and material evidence must describe the state you receive.
| Your reference | What to approve |
|---|---|
| UNS designation | C63000 |
| European comparison | CuAl10Ni5Fe4 / CW307G · similar wrought reference |
| Selected composition · wt.% | Al 9–11; Fe 2–4; Ni 4–5.5; Cu remainder |
| Stock and final condition | Product form, route, supplied state and usable allowance. |
| Your working fit | Mating parts, installed dimensions and receiving scope. |
Selected Concast AMS 4640 reference. European wrought limits can differ; confirm the full ordered standard and supplied condition before substitution.
View Your C63000 Machining Details →
Concast C93200 ↗ Concast C95400 ↗ Concast C51000 ↗ Concast C63000 ↗ Alumeco CC493K ↗ Copper Alloys CC331G comparison ↗ Zollern similar CW307G ↗
More bronze grades: C52100 Spring-Contact Material Review → C54400 Bushing and Valve Material Review → C65500 Fastener Material Review → C90300 Functional-Part Material Review → C93700 Bearing and Guide Review → C95500 Bearing and Pump Material Review → C95800 Valve and Marine Material Review → Other Bronze: C90500 and C90700 Review →
Compare Bronze Without Assuming Interchangeability
Review chemistry and cutting references separately from the loaded contact and final-fit requirements.
Selected Tin Ranges · wt.% · scale 0–10
C93200
6.3–7.5
C51000
4.2–5.8
0510
Different product standards apply; tin content does not rank finished bearing or spring performance.
Indicative Machinability · free-cutting brass = 100
050100
Source: selected Concast product references. Tin intervals refer to C93200 continuous-cast and C51000 drawn-product specifications stated above. Machinability ratings are indicative material indices on the free-cutting-brass scale; they do not predict cycle time, cost, tool life, running clearance or service performance. These charts are reference data, not your lot analysis report.
Your Bronze Application Defines the Drawing Review
Bushings & Sliding Bearings
Provide shaft and housing details, running clearance, load, speed, temperature and lubrication. Define whether acceptance is free or installed.
Wear Plates & Loaded Carriers
Show contact area, direction of motion, mating material and mounting support. Agree final lands and allowed edges.
Formed Contacts & Springs
Specify the exact wrought product, temper, bend direction and finished geometry. Spring or electrical testing needs separate acceptance.
Plan Your Bronze Route Around the Finished Contact
For your bronze CNC machining services review, specify the actual stock and working geometry. Your quote confirms operations, tooling, usable allowance and the accepted inspection scope.
Turning & Boring
Connect bore, shoulder and running land to the same controlled datums.
Review the Process →
Milling Your Mounting Features
Review support around heavy pads, offset faces and machining allowance.
Review the Process →
Drilling & Oil Ports
Define port location, internal-edge access and chip-removal acceptance.
Review the Process →
Grooves & Wear Features
Dimension oil recesses, groove ends and final contact lands explicitly.
Review the Process →Agree Your Bronze Working Surface
Illustrative appearances. Agree roughness, accepted tool marks, oil-port cleanliness and handling protection. Any coating requires separate substrate, preparation, thickness, masking and final-fit review.
Surface Finishing →
Inspect Your Bronze in the Agreed Final State
When you compare a custom bronze parts manufacturer, request a review of the finished interface and the evidence your receiving team needs.
| 3 acceptance checks | Your drawing input |
|---|---|
| 01 · Material identity | Exact alloy, stock route, product standard and lot evidence. |
| 02 · Final contact geometry | Bore, mounting datum, oil-port access and accepted surface. |
| 03 · Installed or functional state | Agree any installation, load, wear, leak or other test separately. |
Material chemistry and a dimensional report answer different questions. Agree document scope and sampling before repeating quantities.
Quality Assurance →
Coordinate Your Drawing and Receiving Requirements
Connect China manufacturing with Dallas-area coordination for drawing review, sample decisions and delivery requirements.
6 Inputs for Your Bronze Quote
01CAD + controlled drawing + mating parts
02Exact alloy + product standard
03Stock route + supplied condition
04Load + movement + lubrication
05Quantity + final surfaces + accepted edges
06Free/installed inspection + material records
Compare the Same Final Contact
Use the same material, drawing revision, installed-state requirement and receiving scope when reviewing quotes.
Answers Before You Specify Bronze
Which bronze alloy is best for machined bushings?
Start with shaft and housing geometry, load, movement, temperature and lubrication. Compare the exact alloy, stock route, final surface and installed fit rather than choosing by colour or a single material index.
Can one bronze alloy replace another?
Compare full chemistry, product standard, supplied and final condition, mating surfaces and operating requirements. Obtain drawing-authority approval before substitution; European names are qualified references.
How does lubrication affect bronze alloy selection?
State the lubricant, access for replenishment, movement and environment. Solid cast bronze and oil-impregnated sintered stock need separate route reviews; neither a grade name nor a groove drawing guarantees service life.
Do solid and oil-impregnated stock use the same machining route?
Do not assume so. Identify the actual material and supplier processing requirements before agreeing machining, cleaning or final acceptance.
Is C51000 sheet the same starting material as a cast bearing?
No. C51000 wrought material, its product form and temper require a separate review from a cast bearing alloy. Match the route to the actual drawing and supplied product.
Do European bronze names approve substitution automatically?
No. Compare the complete ordered standard, chemistry, product form and supplied condition. A casting comparison such as CC493K or CC331G is not a universal UNS acceptance range.
What should your bronze machining quote include?
Provide CAD and controlled drawing, exact alloy and product standard, stock form and condition, mating details, load and lubrication inputs, quantities, finish and required inspection records.
How should the finished bore be accepted?
Define whether measurement is free or installed, identify datums and mating parts, and agree surface, clearance and sampling. Any functional test needs a separately defined method and acceptance limit.
