Platinum Clad Anodes

Catalog No.	PT3427
Outside Material	Pt
Inside Material	Cu, Nb, Ti, Pt

Catalog No.

PT3427

Outside Material

Inside Material

Cu, Nb, Ti, Pt

Platinum Clad Anodes Description

SAM Products is the leader in platinum clad anodes (platinized anodes). If you know the type of anode you are interested in, please contact us directly. If you are unsure about the type of anode you need, please use the guides below.

Platinum is used on the surface as a primary anode material due to its excellent corrosion resistance under anodic conditions coupled with its ability to pass current in all electrolytes without forming an insulating film. The corrosion resistance of platinum manifests itself in its low consumption rate. Its major disadvantage is its high cost, making it clear that it is most desirable to use as little platinum as necessary. To restrict the amount of platinum used and to maintain an anode of some structural integrity, it is necessary to use some type of substrate material.

Copper (Cu)	Good conductivity, low cost.
Niobium (Nb)	Passive film formation, high cost, high breakdown potential, fair conductivity.
Titanium (Ti)	Passive film formation, low cost, low breakdown potential, poor conductivity.
Platinum (Pt)	High corrosion resistance, high cost, good conductivity.

Platinum Clad Anodes Specifications

In order to provide faster service and greater economy, SAM manufactures a number of "standard" anode configurations. These configurations are the result of several years of customer interaction, such that the anode designs could provide sufficient design flexibility for the engineer in a large variety of cathodic protection applications.

SAM 20 (20% Nb)
Diameter	Nb Thickness	Resistance	Pt Thickness
inches	inches	microhm/ft	u-in.	(2X)*
.750	.038	22	300	(600)
.500	.025	50	200	(400)
.375	.019	89	150	(300)
.250	.013	201	100	(200)
.188	.009	356	75	(150)
.125	.006	806	50	(100)

Double platinum thickness

SAM 40 (40% Nb)
Diameter	Nb Thickness	Resistance	Pt Thickness
inches	inches	microhm/ft	u-in.	(2X)*
.375	.038	113	150	(300)
.250	.025	256	100	(200)
.188	.019	453	75	(150)
.125	.013	1025	50	(100)
.093	.010	1822	38	(75)
.063	.007	4102	25	(50)
.031	.0035	16,408	12.5	(25)

SAM 100 Ti (100% Ti)
Diameter	Ti Thickness	Resistance	Pt Thickness
inches	inches	microhm/ft	u-in.	(2X)*
.750	Solid	468	300	(600)
.500	Solid	1054	200	(400)
.375	Solid	1874	150	(300)
.250	Solid	4215	100	(200)
.188	Solid	7454	75	(150)
.125	Solid	16,862	50	(100)

SAM 100 Nb (100% Nb)
Diameter	Nb Thickness	Resistance	Pt Thickness
inches	inches	microhm/ft	u-in.	(2X)*
.750	Solid		300	(600)
.500	Solid		200	(400)
.375	Solid		150	(300)
.250	Solid		100	(200)
.188	Solid		75	(150)
.125	Solid		50	(100)

SAM Standard Pt Clad Mesh Specifications
Wire composition	Platinum clad niobium
Wire diameter	0.020" (0.508 mm)
Platinum thickness	100 µin (2.54 µm)
Mesh pattern	10 x 10 wires/inch
Active surface area	1.25 in²/in²
Frames and tabls	Available on request
Shapes & Sizes Available
Available shapes	Cut to size
Available length	Customer specified
Available width	Up to 36 inches

	Substrate Thickness
Diameter	100Ti or 100Nb	20% Nb	40% Nb	Pt Thickness
inches	Solid	inches	inches	u-in.	(2X)*
.750	Solid	.038	.076	300	(600)
.500	Solid	.025	.050	200	(400)
.375	Solid	.019	.038	150	(300)
.250	Solid	.013	.025	100	(200)