C28000 Muntz Metal
ASTM B36, ASME B36, DIN 2.0360, BS 2875 CZ109, EN CW509L
Farmer’s Copper Ltd. maintains an inventory of C28000 Muntz in sheet and plate.
C280 sometimes referred to as Muntz Metal, nominally contains 60% copper, and 40% zinc. The importance of this alloy is its color, which is essentially that of architectural bronze. Alloy 280 metallographic structure is made of a large portion of beta grains, and so it is stronger, harder, and more rigid than brasses of lesser zinc content. C28000 work hardens rapidly, and so is less adapted to cold work. However, it may be bent or formed readily enough.
Farmer’s Copper Ltd. can offer Muntz Metal cut to your specifications, on our precision plate saws, shears or water jets. Contact one of knowledgeable sales staff today to find out how we can help you with your needs.
C28000 Muntz Metal Applications
- Architectural applications
- Signage
- Condenser plates
Industries
Farmer’s Copper Ltd. extends its services throughout many industries. We provide the raw copper alloy materials in various standard shapes as well as custom cut copper alloys.
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Our C28000 Muntz Metal Inventory & Properties
Farmer’s diverse inventory of products and services offered provides our customers the largest and most extensive selection of alloys available, cut to precise specifications, and delivered with total quality control.
Chemical Properties
| Element | Cu (1) | Pb | Zn | Fe | ||||
| Min % | 59 | |||||||
| Max % | 63 | 0.09 | Rem | 0.07 |
Physical Properties
| Melting Point – Liquidus ⁰F | 1660 | |
| Melting Point – Solidus ⁰F | 1650 | |
| Density lb/cu in. at 68⁰F | 0.303 | |
| Specific Gravity | 8.39 | |
| Electrical Conductivity % IACS at 68⁰F | 28 | |
| Thermal Conductivity Btu/sq ft/ft hr/ ⁰F at 68⁰F | 7 | |
| Coefficient of Thermal Expansion 10-6 per ⁰F (68-572 ⁰F) | 11.6 | |
| Specific Heat Capacity Btu/lb/⁰F @ 68 ⁰F | 0.09 | |
| Modulus of Elasticity in Tension ksi | 15000 | |
| Modulus of Rigidity ksi | 5600 |
Fabrication Properties
| TECHNIQUE | SUITABILTY | |
| Soldering | Excellent | |
| Brazing | Excellent | |
| Oxyacetylene Welding | Good | |
| Gas Shielded Arc Welding | Fair | |
| Coated Metal Arc Welding | Not Recommended | |
| Spot Weld | Good | |
| Seam Weld | Not Recommended | |
| Butt Weld | Good | |
| Capacity for Being Cold Formed | Fair | |
| Capacity for Being Hot Formed | Excellent | |
| Forgeability Rating | 90 | |
| Machinability Rating | 40 |
Mechanical Properties
| FORM | TEMPER | TENSILE STRENGTH | YS-0.5% EXT (KSI) | ELONGATION (%) | ROCKWELL (B) | ROCKWELL (F) | ROCKWELL (30T) | SHEAR STRENGTH (KSI) | SECTION SIZE (IN) |
| PLATE SHEET STRIP | H02 | 70 | 50 | 10 | 75 | 67 | 44 | 0.04 | |
| H00 | 60 | 35 | 30 | 55 | 54 | 42 | 0.04 | ||
| M20 | 54 | 21 | 45 | 85 | 49 | 40 | 0.04 | ||
| O60 | 54 | 21 | 45 | 80 | 46 | 40 | 0.04 |
Our Commitment to Service
As a leading copper, brass, & bronze alloys supplier, Farmers Copper Ltd. attributes our success to serving our customers, through our service-minded employees and material readily available for prompt, accurate deliveries of copper, brass, bronze, stainless steel and other metal alloys.