Sichuan Xinju Mineral Resources Development Stock Co., Ltd. >> C18700 Lead Copper Alloy

C18700 Lead Copper Alloy

Name: C18700 Lead Copper Alloy
Brand: China-Manufacturer-Directory.com
SKU: 710023045
Availability: InStock
Rating: 4.3 (55 reviews)

Supplier:	Sichuan Xinju Mineral Resources Development Stock Co., Ltd.
Price:	Negotiable/Ton
Min Order:	1kg
Quantity::
Trade Terms:	FOB,CFR,CIF

Product Specifications

Prod Model:	CDA C18700
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Machinability Rate:	85
Forging Temperatures:	760-871 C/1400-1600 F
Cold Working:	Good
Hot Formming:	Not Recommend
Annealing Temperatures:	427-649 C/ 800-1200 F
Type:	Copper Bars
Shape:	Round
Alloy:	Alloy
Application:	Electronic Parts

Product Description

Introduction:

C18700 is a copper-base alloy containing lead. The lead is added to impart free-cutting properties to the metal. Although the lead lowers the eletrical conductivity of C18700 slightly below that of tough-pitch copper, is still has high electrical conductivity well within the limits needed for most curretn-carrying requiremetns.

C18700 leaded copper alloys are primary alloys that can be spot welded and seam welded to achieve hardness and electrical conductivity of 96% IACS. These alloys can be heat treated and cold worked. They are suitable for applications, which require high mechanical properties and deformation resistance at high temperature.

Welding methods such as soldering, brazing and butt welding are preferred for C18700 copper alloys. Oxcycetylene welding, gas shielded arc welding, coated metal arc welding, seam welding and spot welding are not preferred for this type of alloys.

Application:

— Electrical/ Electronic Connectors
— Electrical Motor and Switch Parts
— Screw-machine Parts Requiring HIgh Conductivity
— Welding torch tips

Chemical Composition:
Copper (Cu+Ag) 99.5 % min	Lead (Pb) 0.8-1.5 %
Physical Properties	Metric	Imperial
Density	8.89 g/cm3	0.321 lb/in2
Melting Point	953 C	1747 F
Mechanical Properties	Metric	Imperal
Hardness, Rockwell B (50.8-76.2 mm/ 2.00-3.00 in)	65	65
Hardness, Rockwell B (25.4-50.8 mm/1.00-2.00 in )	70	70
Hardness, Rockwell B (25.4 mm/1.00 in, heat treated)	75.0	75.0
Tensile Strength at break (any thickness)	379 MPa	55000 psi
Yield Strength (0.500%, any thichness)	379 MPa	55000 psi
Modulus of Elasticity	117 GPa	17000 psi
Poisson's Ration	0.181	0.181
Shear Modulus	49.6 GPa	7200 ksi
Thermal Properities	Metric	Imperial
Thermal Expansion Coefficient (20.0-300C/68.0-572F)	17.6 μm/m C	9.78 μm/in F
Thermal Conductivity (@20.0C /68.0F )	377/W/mK	2620 BTU in/hr.ft.°F

Sichuan Xinju Mineral Resource Development Co., Ltd., founded in 1998 with a capital of CNY 134.2 million, is a foreunner in the fields of new resources and new materials in western China. This stock company owns a tellurium bismuth mine where tellurium is not in the form of associate ores and the average tellurium content of these ores is 2%.

Xinju has been dedicated in manufacturing tellurium copper C14500, non-magnetic brass (HBi60, C36000), tellurium dioxide TeO2, aluminum oxide Al2O3, bismuth trioxide Bi2O3 and microcrystalline mica powder for decades.

We are certificatied supplier of Made-in-China, with certificates of SGS, CQC, ISO 9001: 2008, OHSAS 18001: 2007 and ISO 14001: 2004. For us, by combining science and technology, ores will turn into gold.

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