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C18200 Chromium Copper

MIL-C-19311, UNS C18200

Specs
Level 4
MIL-C-19311
Level 4
Excellent in Being Cold-Formed
Level 2
Good in Being Hot-Formed

Farmers Copper LTD. supplies C18200 Chromium Copper in round bar and rod. Our particular specification is the military grade (MIL-C-19311) and is mainly used for parts in the electrical and industrial markets. It is excellent in being cold formed and good in being hot formed. Our dedicated sales staff can provide you information about our sizes and is ready to help meet your exact needs.

Farmers Copper Ltd. has been in the metal industry over 90 years, our long time commitment, dedication and service has proven to be our success. Now, four generations old, the Farmer family is proud to serve you and your company for your copper alloy and pure copper needs. Please contact us today, and let our knowledgeable staff assist you with your copper requirements. For emergency orders, call 409-765-9003.

C18200 Chromium Copper

Chromium Copper Shapes

Chromium Copper Applications

  • Electrical
  • Industrial
  • Molds

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 C18200 Chromium Copper 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

ElementCu (1,2)PbFeCrSi
Min %0.6
Max %Rem0.050.11.20.1

Physical Properties

Melting Point – Liquidus ⁰F1967
Melting Point – Solidus ⁰F1958
Density lb/cu in. at 68⁰F0.321
Specific Gravity8.98
Electrical Conductivity % IACS at 68⁰F80 (1)
Thermal Conductivity Btu/sq ft/ft hr/ ⁰F at 68⁰F187(2)
Coefficient of Thermal Expansion 10-6 per ⁰F (68-212 ⁰F)9.8
Specific Heat Capacity Btu/lb/⁰F @ 68 ⁰F0.092
Modulus of Elasticity in Tension ksi17000
Modulus of Rigidity ksi7200

Fabrication Properties

TECHNIQUE SUITABILTY
SolderingGood
BrazingGood
Oxyacetylene WeldingNot Recommended
Gas Shielded Arc WeldingGood
Coated Metal Arc WeldingNot Recommended
Spot WeldNot Recommended
Seam WeldNot Recommended
Butt WeldFair
Capacity for Being Cold FormedExcellent
Capacity for Being Hot FormedGood
Forgeability Rating80
Machinability Rating20

Mechanical Properties

FORM TEMPER TENSILE STRENGTH YS-0.5% EXT (KSI) ELONGATION (%) ROCKWELL (B) TORSION MODULUS KSI SECTION SIZE (IN)
Round Bar Rod TH01 77 65 16 82   0.5
TH04 77 65 16 82   0.5
TH04 86 77 14     0.156
TF00 65 55 18 70   3
TF00 72 65 18 80   1
TF00 70 65 18 45   2
TF00 70 55 21 40   0.5
TF00 55 43 25 68 7.3 4
TB00 45 14 40     0.5
TD04 57 56 11 65   0.5
TD04 74 73 5     0.156

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.

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