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International Hydraulics Inc

7700 St. Clair Avenue
Mentor, Ohio 44060

Ph 440-951-7186 Fax 440-951-1071

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Made in the USA

Made in the USA

84JM
ISO 9001:2008

 

TABLE OF IACS (International Annealed Copper Standard) CONDUCTIVITIES

100% IACS is equivalent to a conductivity of 58.108 megasiemens per meter (MS/m) at 20°C or a resistivity of 1/58.108 ohm per meter for a wire one square millimeter in cross section.

IACS % = (172.41/resistivity) where resistivity, ρ,(ro) is in micro-ohms per centimeter.

METAL TYPE

IACS %

 

High Copper Alloys

Electrolytic (ETP) 110

101

Silver-bearing 113,107

101

Oxygen-free (OF) 102

101

Phosphorized (DLP) 120

98

Free-cutting (S, Te or Pb) 187,147,145

90 to 98

Chromium coppers

80 to 90

Phosphorized (DHP) 122 etc

85

Cadmium copper (1%)

80 to 90

Tellurium-nickel copper

50

Aluminum Alloys

1100

59

1350 (“EC-0”)

62

2024

45.5/49

6101

57

6061-T6

43

6005/6105

47/46

Brass/Brass Alloys

Free machining brass 360

26

Brasses

25 to 50

Phosphor bronze E

25 to 50

Naval brass

25 to 50

Admiralty

25 to 50

Phosphor bronze A, C, D

10 to 20

Aluminum bronze, 5%

10 to 20

Silicon bronze B

10 to 20

Beryllium copper

10 to 20

Cupro-nickel, 30%

5 to 15

Nickel silver

5 to 15

Aluminum bronze (over 5% Al)

5 to 15

Silicon bronze A

5 to 15

Iron Alloys

Low alloy steel, Iron

10-18

Stainless Steel, high alloy steel

2.5-2.9

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