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UNS C42600 Tin Brass

C42600 brass is a brass formulated for primary forming into wrought products. It has the highest base cost and a moderately high melting temperature among wrought brasses.

The properties of C42600 brass include seven common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare C42600 brass to: wrought brasses (top), all copper alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Elastic (Young's, Tensile) Modulus

110 GPa 16 x 106 psi

Elongation at Break

1.1 to 40 %

Poisson's Ratio

0.33

Shear Modulus

42 GPa 6.1 x 106 psi

Shear Strength

280 to 470 MPa 41 to 69 x 103 psi

Tensile Strength: Ultimate (UTS)

410 to 830 MPa 60 to 120 x 103 psi

Tensile Strength: Yield (Proof)

220 to 810 MPa 33 to 120 x 103 psi

Thermal Properties

Latent Heat of Fusion

200 J/g

Maximum Temperature: Mechanical

180 °C 350 °F

Melting Completion (Liquidus)

1030 °C 1890 °F

Melting Onset (Solidus)

1010 °C 1850 °F

Specific Heat Capacity

380 J/kg-K 0.091 BTU/lb-°F

Thermal Conductivity

110 W/m-K 63 BTU/h-ft-°F

Thermal Expansion

18 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

25 % IACS

Electrical Conductivity: Equal Weight (Specific)

26 % IACS

Otherwise Unclassified Properties

Base Metal Price

31 % relative

Density

8.7 g/cm3 540 lb/ft3

Embodied Carbon

2.9 kg CO2/kg material

Embodied Energy

48 MJ/kg 20 x 103 BTU/lb

Embodied Water

340 L/kg 40 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

9.4 to 140 MJ/m3

Resilience: Unit (Modulus of Resilience)

230 to 2970 kJ/m3

Stiffness to Weight: Axial

7.1 points

Stiffness to Weight: Bending

18 points

Strength to Weight: Axial

13 to 27 points

Strength to Weight: Bending

14 to 23 points

Thermal Diffusivity

33 mm2/s

Thermal Shock Resistance

15 to 29 points

Alloy Composition

Among wrought copper alloys, the composition of C42600 brass is notable for including phosphorus (P) and tin (Sn). Phosphorus is used as an alloy deoxidizer, and to reduce vulnerability to dezincification. Tin is used to improve strength, bearing properties, and corrosion resistance against certain types of media.

Copper (Cu) 87 to 90
Zinc (Zn) 5.3 to 10.4
Tin (Sn) 2.5 to 4.0
Nickel (Ni) 0.050 to 0.2
Iron (Fe) 0.050 to 0.2
Phosphorus (P) 0.020 to 0.050
Lead (Pb) 0 to 0.050
Residuals 0 to 0.2

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993