C48600 is a naval brass, which means copper and zinc with a little tin added. This one also carries lead, so it machines cleanly, and a touch of arsenic to help it hold up against dezincification. C48600 brass hollow bars are what a drawing asks for when a valve stem, a marine fitting or a piece of hardware has to be turned or hot forged from stock that already has the hole through it. Because of the lead, it is a leaded brass and not a lead free one.
Amardeep Steel Centre supplies C48600 brass hollow bar from Mumbai, to export buyers and to workshops in India. Send the outside diameter, bore, length, temper and quantity on the enquiry page and you get back what can be shipped and when.
Technical Data
C48600 Hollow Bar Specifications at a Glance
| Parameter | Detail |
|---|---|
|
Grade |
UNS C48600, leaded naval brass with tin and arsenic |
|
Alias |
CDA 486 |
|
Standards |
ASTM B124 for forging rod, bar and shapes, as listed for the grade |
|
Product forms |
Hollow bar and hollow rod supplied against your drawing |
|
Size range |
Outside diameter, bore and wall to your drawing. Send the sizes and we confirm. |
|
Length |
Random, fixed or cut to length |
|
Tempers |
As named on your drawing, confirmed at quotation |
|
Tolerance |
As per the standard on your order, or as agreed |
|
Lead, tin and arsenic |
Lead 1.00 to 2.50, tin 0.30 to 1.50, arsenic 0.02 to 0.25 per cent. Leaded, not lead free. |
|
Testing and certificates |
Mill test certificate, type confirmed at quotation |
Chemical Composition of C48600 Brass Hollow Bars
| Element | UNS C48600 | Nominal |
|---|---|---|
|
Copper (Cu) |
59.0 to 62.0 |
About 60.5 |
|
Zinc (Zn) |
Remainder |
About 37 |
|
Lead (Pb) |
1.00 to 2.50 |
About 1.7 |
|
Tin (Sn) |
0.30 to 1.50 |
About 0.9 |
|
Arsenic (As) |
0.02 to 0.25 |
About 0.13 |
|
Other elements, total |
0.40 maximum |
None added |
Physical Properties of C48600
| Property | SI value | Imperial value |
|---|---|---|
|
Density |
About 8.42 g/cm3 at 20 degrees Celsius |
0.304 lb/in3 at 68 F |
|
Melting range |
About 891 to 896 degrees Celsius |
1635 to 1645 F |
|
Coefficient of thermal expansion |
About 23.4 micrometres per metre per kelvin, 20 to 300 degrees Celsius |
13 millionths per F, 68 to 572 F |
|
Electrical conductivity |
25 per cent IACS |
25 per cent IACS at 68 F |
|
Modulus of elasticity in tension |
About 101 GPa |
14600 ksi |
Application of C48600 Brass Hollow Bars
C48600 naval brass hollow bars are engineered for high strength, wear resistance and dependable performance in demanding marine and industrial environments. Common application areas include:
- Valve stems: Stems and spindles turned or forged from hollow stock.
- Marine hardware and fittings: Fittings, turnbuckles and deck hardware that live near salt water.
- Fasteners: Nuts, screws and rivets machined on automatic lathes.
- Screw machine parts: Small precision parts cut at speed from bar.
- Machine hardware: Bushings, collars and fittings for general machinery.
- Pump and hydraulic parts: Fittings and connectors for fluid handling.
If the duty is seawater tube rather than bar, see our admiralty brass seamless tube, aluminium brass seamless tube and copper nickel 90 10 pipes and tubes ranges.
Tell Us the Size and the Service, Get a Quote
Frequently Asked Questions
1. What are C48600 brass hollow bars?
C48600 is a UNS designation for a leaded naval brass with about 60 per cent copper, lead for machining, and tin and arsenic additions for corrosion resistance. Hollow bar is stock with a bore through it, used for machined and hot forged valve, marine and hardware parts.
2. Is C48600 naval brass?
Yes, it sits in the naval brass family: a copper zinc alloy with tin added, which raises resistance to dezincification and seawater. C48600 also carries lead for machining and a little arsenic. It is a different alloy from admiralty brass, which is a tube grade.
3. Is C48600 lead free?
No. C48600 carries 1.00 to 2.50 per cent lead, which gives it good machining. It is not a lead free brass, and drinking water rules in many regions restrict leaded brass. Check the rule for the finished part, and ask us for a lead free grade if it applies. We make no compliance claim.
4. What is the difference between C48600 and C36000?
C36000 is free cutting brass with more lead and no tin, so it machines faster but is not built for seawater. C48600 gives up some machinability for tin and arsenic, which improve resistance to dezincification. Choose C48600 for marine hardware and C36000 for dry service.
5. Is C48600 the same as CW706R or CuZn28Sn1As?
No. CuZn28Sn1As, CW706R, CZ111 and C4430 are admiralty brass names, a tube alloy without the lead of C48600. Some web pages list them against C48600, and that is incorrect. Name the UNS grade on your order, and tell us if your drawing uses another code.
6. Which standard covers C48600 hollow bar?
ASTM B124 covers forging rod, bar and shapes in copper alloys, and C48600 is listed against it. Name the standard, temper and tolerance on your order so tests match your drawing, and we confirm what applies to hollow bar.
Looking to Enquire or Place an Order?
Tell Amardeep Steel Centre the size, the temper and the quantity, and what the part has to do. You get a price, a delivery date and a straight view on whether C48600 is the right brass for the job, and if it is not, we say so. You can attach your drawing to the enquiry.
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