Marlin Thermocouple Wire Inc   847 Canterbury Road   Westlake, OH 44145   Ph: 440-835-1950   Tf: 1-800-686-5818   Fx: 440-835-2188

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A Leading Provider Of Specialty Thermocouple Wire, Cable And Connector Products

Gages | Thermocouple Color Codes | See also: Glossary (PDF)

Gage Chart

This chart shows diameter and area values for common wire gage sizes.

 AWG  

 SOLID

 STRANDED

 Diameter (in)

 Area (in²)

 Dia (mm)

 Area (mm²)

Typical Stranding

 Diameter (in)

 Area (in²)

 Dia (mm)

 Area (mm²)

 2

 665 of 30 Gage

 0.292

 0.05223

 7.42

 0.05223

 4

 420 of 30 Gage

 0.232

 0.03299

 5.89

 0.03299

 6

 266 of 30 Gage

 0.184

 0.02089

 4.67

 0.02089

 8

 19 of 21 Gage

 0.145

 0.01212

 3.68

 0.01212

 10

 0.102

 0.00816

 2.59

 5.261

 37 of 26 Gage

 0.115

 0.00735

 2.92

 0.00735

 12

 0.081

 0.00513

 2.06

 3.308

 7 of 20 Gage

 0.096

 0.00563

 2.44

 0.00563

 14

 0.064

 0.00323

 1.63

 2.082

 7 of 22 Gage

 0.073

 0.00352

 1.85

 0.00352

 16

 0.051

 0.00203

 1.29

 1.308

 7 of 24 Gage

 0.060

 0.00222

 1.52

 0.00222

 18

 0.040

 0.00128

 1.02

 0.823

 7 of 26 Gage

 0.048

 0.00139

 1.22

 0.00139

 20

 0.032

 0.00080

 0.81

 0.5189

 7 of 28 Gage

 0.038

 0.000873

 0.97

 0.000873

 22

 0.025

 0.000503

 0.64

 0.3243

 7 of 30 Gage

 0.030

 0.000550

 0.76

 0.000550

 24

 0.020

 0.000317

 0.51

 0.2047

 7 of 32 Gage

 0.023

 0.000347

 0.58

 0.000347

 26

 0.016

 0.000199

 0.40

 0.1281

 7 of 34 Gage

 0.021

 0.000218

 0.53

 0.000218

 28

 0.013

 0.000125

 0.32

 0.0804

 7 of 36 Gage

 0.013

 0.000137

 0.33

 0.000137

 30

 0.010

 0.000079

 0.25

 0.0507

 7 of 38 Gage

 0.012

 0.000086

 0.30

 0.000086

 32

 0.008

 0.000050

 0.20

 0.0320

 7 of 40 Gage

 0.008

 0.000053

 0.20

 0.000053

 34

 0.0063

 0.000031

 0.160

 0.0201

 7 of 42 Gage

 0.0075

 0.000034

 0.191

 0.000034

 36

 0.0050

 0.000020

 0.127

 0.0127

 7 of 44 Gage

 0.0060

 0.0000216

 0.152

 0.0000216

 38

 0.0040

 0.0000123

 0.102

 0.0079

 40

 0.0031

 0.0000077

 0.079

 0.0050

 42

 0.0025

 0.0000049

 0.064

 0.0031

 44

 0.0020

 0.0000031

 0.051

 0.0020

 46

 0.0016

 0.0000019

 0.041

 0.0012

 48

 0.0012

 0.0000012

 0.030

 0.0008

 50

 0.0010

 0.0000008

 0.025

 0.0005

Thermocouple Color Codes: US & Canada

ANSI CODE

ALLOYS

SINGLE CONDUCTOR COLOR

THERMOCOUPLE GRADE JACKET COLOR

EXTENSION GRADE JACKET COLOR

MAGNETIC?

J

+ Iron

 

 

 

Y

- Constantan

 

 

K

+ Nickel/ Chromium

 

 

 

 

- Nickel/ Aluminum

 

Y

T

+ Copper

 

 

 

 

- Constantan

 

 

E

+ Nickel/ Chromium

 

 

 

 

- Constantan

 

 

R / S (Ext Only)

+ Copper

 

N/A

 

 

- Copper Alloy

 

 

Thermocouple Color Codes: International


ANSI Code

International
IEC 584-3

BRITISH BS-1843

GERMAN / NETHERLANDISH
DIN-43710

JAPANESE JIS-C
1610-1981

FRENCH
NFE-18001

J

+ Fe

Jacket

+ Fe

Jacket

+ Fe

Jacket

+ Fe

Jacket

+ Fe

Jacket

- CuNi

- CuNi

- CuNi

- CuNi

- CuNi

K

+ NiCr

Jacket

+ NiCr

Jacket

+ NiCr

Jacket

+ NiCr

Jacket

+ NiCr

Jacket

- NiAl

- NiAl

- NiAl

- NiAl

- NiAl

T

+ Cu

Jacket

+ Cu

Jacket

+ Cu

Jacket

+ Cu

Jacket

+ Cu

Jacket

- CuNi

- CuNi

- CuNi

- CuNi

- CuNi

E

+ NiCr

Jacket

+ NiCr

Jacket

+ NiCr

Jacket

+ NiCr

Jacket

+ NiCr

Jacket

- CuNi

- CuNi

- CuNi

- CuNi

- CuNi

R / S (Ext Only)

+ Cu

Jacket

+ Cu

Jacket

+ Cu

Jacket

+ Cu

Jacket

+ Cu

Jacket

- Cu Alloy

- Cu Alloy

- Cu Alloy

- Cu Alloy

- Cu Alloy

Quality

The management, staff and employees of Marlin Thermocouple Wire, Inc. are committed to being a leading provider of technically-oriented specialty wire and cable products to both industrial end-user and distributor customers. To remain in this position, we recognize that the customer’s perception of quality lies not only in product attributes but also such considerations as service provided, delivery, and price. In providing our customers with quality products, we are rewarded with their loyalty and thereby ensure the prosperity of this organization and its employees.

We believe that the best way to ensure consistent quality is to implement and maintain a Quality Management System consistent with the requirements of ISO. We shall continue to:

  • Display management commitment to quality.
  • Provide training and support for all employees so that they may accept responsibility for quality.
  • Involve all employees in the quality effort.
  • Review our systems and procedures for improvement opportunities.
  • Seek suppliers who show evidence of similar commitment to quality.

Warranty

Marlin Thermocouple Wire (“Seller”) warrants that any product provided by Seller shall be free from defects in material or workmanship from a twelve month period from the date of shipment. Seller shall replace any products it has provided which fail to meet the applicable warranty as set forth.

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