A.02.12 Material Specification.pdf

extruded magnesium anodes

GALVOROD™

GALVOMAG™

& GALVOMAG™

Mg % Al %

Balance

2.5 – 3.5

Balance

0.010 Max

Mn % Zn %

0.20 – 1.0

0.7 – 1.3

0.50 – 1.3

Ca max. % Si max. %

0.04 0.05

Cu max. % Ni max. %

0.01 0.0010

0.02 0.001

Fe max. % 0.002 0.03

Other Impurities max %

Each 0.01 0.05

Total 0.30 0.30

Shape Identification

Number Diameter (inches)

Core Centering

(inches)

Core Wire Diameter

(inches)

Straightness

(inches)

Approximate

Weight

DC-4400

DC-6066

0.500 – 0.020

0.675 – 0.020

Within .040 Within .050

0.135 0.135

0.060 in 2 ft

0.060 in 2 ft

0.015 lbs/in

0.025 lbs/in

DC-6836

DC-1070

0.700 – 0.020

0.750 – 0.020

Within 1/16 Within 1/16

0.135 0.135

0.040 in 2 ft

0.040 in 2 ft

1.027 lbs/in

0.031 lbs/in

DC-8125

DC-983

0.800 – 0.020

0.840 – 0.020

Within 1/16 Within 1/16

0.135 0.135

0.040 in 2 ft

0.040 in 2 ft

0.035 lbs/in

0.038 lbs/in

DC-6826

DC-982

0.900 – 0.020

1.050 – 0.020

Within 1/16 Within 1/16

0.135 0.135

0.040 in 2 ft

0.040 in 2 ft

0.043 lbs/in

0.057 lbs/in

DC-980

DC-2376

1.315 – 0.020

1.561 ± 0.016

Within 1/16 Within 1/8

0.135 0.188

0.040 in 2 ft

0.250 in 10 ft

0.089 lbs/in

1.5 lbs/ft

DC-2375 2.024 ± 0.024 Within 1/8 0.188 0.250 in 10 ft 2.5 lbs/ft

DC-6772 2.562 ± 0.24 Within 1/8 0.188 0.250 in 10 ft 4.0 lbs/ft

DC-1016

GALVOLINE™

3/8 x 3/4 in ± 0.015 Rectangle (1/8 R corners)

Within 1/16 0.135 Furnished in coils with sheared ends

0.243 lbs/ft

End Configurations and Adaptor Caps

For magnesium anodes to provide protection, a positive electrical con-nection must be established and maintained between the anode and the structure being protected. To facilitate their use, anodes are furnished with various end configurations and/or adaptor caps. The standard end configu-rations are:

1: Both ends plain (saw cut) 2: One end plain, one end threaded 3: One end plain, one end capped 4: One end counterbored with core wire exposed (1.050 diameter and larger only) 5: One end plain, one end with core wire exposed 6: Core wire exposed on both ends 7: Link-type anode, one end welded steel plug with 9" to 12' anode sections joined with flexible connector to desired length

Areas of Application

There are four primary areas where extruded anodes offer important ad-vantage in cost, performance, and ease of installation:

anode simplifies installation.

anode gives a desirable current output-to-anode weight ratio.

driven into the ground to provide convenient and inexpensive protection.

anode gives short-term, high-current output.

Anode rods are extruded in twelve standard diameters ranging from 0.500' to 2.5621, GALVOLINE™ ribbon anode is extruded as a 3/8" x 3/4" ribbon. Each anode has a steel core running lengthwise through its center.

Anode rods are available as either the standard GALVOROD™ anode or the high-current output GALVOMAG™ anode. GALVOLINE™ ribbon anode is manufactured with the high-current output composition.

In most environments, the oxidation potential is 1.4 to 1.5 volts for GALVOROD™ and 1.6 to 1.7 volts for GALVOMAG™ (with respect to a copper-copper sulfate reference electrode). Because of its higher oxida-ly 25% More current (milliamperes) than GALVROD™ anodes of the

GALVOMAG™ anodes increases.

Current capacities for GALVOMAG™ and GALVOROD™ anodes are sim-ilar and will range from 500 to 600 ampere hours per pound, depending primarily on the operating rate (anode current density).

Composition & Conductivity

Physical Tolerances

M4CT9JCD

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M4CT9JCD

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M4CT9JCD

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M4CT9JCD

Highlight www.magspecialtiesinc.comShaping Imaginations

Capped Anodes

Dimensions for Diagram Below Cap Threads

Cap Number Used on Anode

(Diameter) A B C D Internal External

DS-1W

DS-2W

0.500 0.675, 0.700, 0.750

1.06 1.06

0.81 0.81

0.19 0.91

0.63 0.63

DS-3W

DS-4W

0.840, 0.900 1.050

1.06 1.31

0.81 1.19

0.19 0.44

0.63 1.00

Threaded or Exposed Core Wire