ASTM B453
- Architecture
- General Engineering
- Automotive
- Consumer Products
- Plumbing
Typical Uses
Builder Drawer Pulls, Hinges, Drawer Handles, Nuts, Rivets, Screws, Plumbing Faucet Seats, Faucet Stems, Pipe Fittings, Plumbers Fittings, Plumbers’ Brass Goods, Ratchets, Instrument Backs, Automatic Screw Machine Parts, Valve Stems, Pinions, Flare Fittings, Couplings, Bearing Cages, Channel Plate, Wheels, Gears, Adapters, Engravers Plate, Bicycle Spoke Nipples, Clock and Watch Parts, Clock Plates and Nuts, Key Blanks
C35300
Chemical Composition
(%max, unless shown as range or min)
| Cu | Fe | Pb | Zn |
| Min/Max | 60.0-63.0 | 0.15 | 1.5-2.5 | Rem |
Note: Cu + Sum of Named Elements, 99.5% min.
Applicable Specifications
* Bar, Rod, Shapes – ASTM B453
Fabrication Processes
* Machining
* Roll Threading and Knurling
Fabrication Properties
| Joining Technique | Suitability |
| Soldering | Excellent |
| Brazing | Excellent |
| Oxyacetylene Welding | Good |
| Gas Shielded Arc Welding | Not Recommended |
| Coated Metal Arc Welding | Not Recommended |
| Spot Weld | Good |
| Seam Weld | Not Recommended |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Fair |
| Capacity for Being Hot Formed | Excellent |
| Machinability Rating | 40 |
Standard Temper Designation:
* H02 – Half Hard
Mechanical Properties (ASTM B16)
Diameter or Distance Between
Parallel Surfaces, in. [mm] | Tensile Strength, min | Yield Strength, at 0.5% Extension Under Load, min | Elongation(1), min, % | Rockwell B Hardness(2),(3) |
| ksi | MPa | ksi | MPa | Round | Hexagonal and Octagonal |
| Rod |
| 1/2 [12] and under | 57 | 395 | 25 | 170 | 7 | – | – |
| over 1/2 [12] to 1 [25] incl. | 55 | 380 | 25 | 170 | 10 | 60 – 80 | 55 – 80 |
| over 1 [25] to 2 [50] incl. | 50 | 345 | 20 | 140 | 15 | 55 – 75 | 45 – 80 |
| over 2 [50] to 3 [75] incl. | 45 | 310 | 15 | 105 | 20 | 45 – 70 | 40 – 65 |
| over 3 [75] to 4 [100] incl. | 45 | 310 | 15 | 105 | 20 | 40 – 65 | 35 – 60 |
| over 4 [100] | 40 | 275 | 15 | 105 | 20 | 25 min | 25 min |
| Bar |
| Thickness, in. [mm] | Width, in. [mm] | | | | | | | |
| 1/2 [12] and under | 1 [25] and under | 50 | 345 | 25 | 170 | 10 | – | 45 – 85 |
| 1/2 [12] and under | over 1 [25] to 6 [150] | 45 | 310 | 17 | 115 | 15 | – | 35 – 70 |
| over 1/2 [12] to 2 [50] incl. | 2 [50] and under | 45 | 310 | 17 | 115 | 15 | – | 40 – 80 |
| over 1/2 [12] to 2 [50] incl. | over 2 [50] to 6 [150] | 40 | 275 | 15 | 105 | 20 | – | 35 – 70 |
| over 2 [50] | over 2 [50] to 4 [100] | 40 | 275 | 15 | 105 | 20 | – | 35 – 70 |
(1) In any case, a minimum gage length of 1 in. [25mm] shall be used. SI elongation values are based on a gage length of 5.65 times the square root of the area for dimentions greater than 2.5 mm.
(2) Determined on the cross section midway between surface and center.
(3) Rockwell hardness requirements are not established for diameters less than 1/2 in. [12 mm].
Physical Properties
| US Customary | Metric |
| Melting Point – Liquidus | 1660 F | 904C |
| Melting Point – Solidus | 1650 F | 899C |
| Density | 0.303 lb/in3 at 68 F | 8.39 gm/cm3 at 20 C |
| Specific Gravity | 8.39 | 8.39 |
| Electrical Resistivity | 37.0 ohms-cmil/ft at 68 F | 6.15 microhm-cm at 20 C |
| Electrical Conductivity | 28 %IACS at 68 F | 0.164 MegaSiemens/cm at 20 C |
| Thermal Conductivity | 71.0 Btu · ft/(hr · ft2·°F) at 68 F | 129.0 W/m ·°K at 20 C |
| Coefficient of Thermal Expansion | 11.6·10-6 per °F (68-572 F) | 20.9·10-6 per °C (20-300 C) |
| Specific Heat Capacity | 0.09 Btu/lb/°F at 68 F | 377 J/kg · °K at 20 C |
| Modulus of Elasticity in Tension | 15000 ksi | 103400 MPa |
| Modulus of Rigidity | 5600 ksi | 38610 MPa |
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