Welcome to PMC Corporation

PRODUCT CODE: FB/FB

Our customers have grown to expect only the highest quality products from PMC A Division of R-SCC.

This construction is one of the earliest insulations used and is perhaps still most widely used. It consists of single conductors insulated with a fiberglass braid then impregnated with a special binder to improve moisture and abrasion resistance. The singles are then laid parallel and a braided jacket of the same material is applied and impregnated.

While wire gauge size, calibration and atmosphere will affect maximum useful temperature in applications, this insulation is designated to withstand a maximum continuous use at 900°F (482°C) and a single exposure use at 1000°F (537°C). (Note: Impregnations retained to 400°F (204°C).

Wire Grade	Gauge Size	Wire Type	Part Numbers
Wire Grade	Gauge Size	Wire Type	Type J	Type K	Type T	Type E	Type N	Type R/S
THERMOCOUPLE	16	Solid	J-FB/FB-16	K-SF/FBK-20	T-FB/FB-20	E-FB/FB-20	N-FB/FB-20
THERMOCOUPLE	20	Solid	J-FB/FB-20	K-FB/FB-20	T-FB/FB-20	E-FB/FB-20	N-FB/FB-20
THERMOCOUPLE	20 7/28	Stranded	J-FB/FB-20F	K-FB/FB-20F	T-FB/FB-20F	E-FB/FB-20F	N-FB/FB-20F
THERMOCOUPLE	24	Solid	J-FB/FB-24	K-FB/FB-24	T-FB/FB-24	E-FB/FB-24	N-FB/FB-24
EXTENSION	16	Solid	JX-FB/FB-16	KX-SF/FB-16	TX-SF/FB-16	EX-SF/FB-16	NX-SF/FB-16	RSX-FB/FB-16
EXTENSION	20	Solid	JX-FB/FB-20	KX-FB/FB-20	TX-FB/FB-20	EX-FB/FB-20	NX-FB/FB-20	RSX-FB/FB-20

Color Code & Initial Calibration Tolerances for Thermocouple Wire:

Thermocouple Type
Color Code Initial Calibration Tolerances

Wire Alloys ANSI
Symbol +/-
Individual Jacket Temperature Range Standard
Limits Special
Limits

*Iron(+) vs. Constantan(-)
J White/Red Brown
w/Black Tracer +32°F (0°C) to +545°F (+285°C)
+545°F (285°C) to +1400°F (+750°C)
± 4°F (2.2°C)
± .75% ± 2°F (1.1°C)
± .4%

Chromel^®(+)
vs. Alumel^®(-)
K Yellow/Red Brown
w/Yellow Tracer -330°F -200°C) to -165°F (-110°C)
-165 °F (-110°C) to +32°F (0°C)
+32°F (0°C) to +545°F (+285°C)
+545°F (285°C) to +2300°F (+1250°C)
± 2%
± 4°F (2.2°C)
± 4°F (2.2°C)
± .75% ± 2°F (1.1°C)
± .4%

Copper(+) vs.
Constantan(-)
T Blue/Red Brown
w/Blue Tracer -330°F (-200°C) to -85°F (-65°C)
-85°F (-65°C) to +270°F (+130°C)
+270°F (130°C) to +660°F (+350°C)
± 1.5%
± 1.8°F (1°C)
± .75% ± .8%
± .9°F (.5°C)
± .4%

Chromel^®(+) vs. Constantan(-)
E Purple/Red Brown
w/Purple -330°F -20(0°C) to -270°F (-170°C)
-270°F (-170°C) to +480°F (+250°C)
+480°F (+250°C) to +640°F (+340°C)
+640°F (+340°C) to +1600°F (+900°C)
± 1%
± 3°F (1.7°C)
± 3°F (1.7°C)
± .5% ± 1.8°F (1°C)
± 1.8°F (1°C)
± .4%
± .4%

Nicrosil(+) vs. Nisil(-)
N Orange/Red Brown
w/Orange Tracer +32°F (0°C) to +545°F (+285°C)
+545°F (285°C) to +2300°F (+1250°C)
± 4°F (2.2°C)
± .75% ± 2°F (1.1°C)
± .4%

Color Code & Initial Calibration Tolerances for Extension Wire:

Thermocouple Type
Color Code Initial Calibration Tolerances

Wire Alloys ANSI
Symbol +/-
Individual Jacket Temperature Range Standard
Limits Special
Limits

*Iron vs. Constantan
JX White/Red Black +32°F (0°C) to +400°F (+200°C)
± 4°F (2.2°C) ± 2°F (1.1°C)

Chromel^®vs. Alumel^®
KX Yellow/Red Yellow +32°F (0°C) to +400°F (+200°C)
± 4°F (2.2°C) ± 2°F (1.1°C)

Copper vs. Constantan
TX Blue/Red Blue -75°F (-60°C) to +210°F (+100°C)
± 2°F (1.1°C) ± 1°F (.5°C)

Chromel^® vs. Constantan
EX Purple/Red Purple +32°F (0°C) to +400°F (+200°C) ± 3°F (1.7°C) ± 2°F (1.1°C)

Nicrosil vs. Nisil
NX Orange/Red Orange +32°F (0°C) to +400°F (+200°C) ± 4°F (2.2°C) ± 2°F (1.1°C)

Copper vs. Copper Alloy
SX
RX Black/Red Green +75°F (25°C) to +400°F (+200°C)
± 9°F (5°C)

NOTE: Percent limits apply directly to temperature in °C units, but for °F equivalents are applied to the numbers of °F above or below the ice point (+32°F).
(i.e. Limit (°F) = (Temp. °F-32°F) x Percentage)

Thermocouple wire cannot be expected to meet the limits of error at temperatures below the ice point unless specified at time of purchase.

* Magnetic

CHROMEL^®and ALUMEL^®are registered trademarks of Hoskins Manufacturing Company.

FB/FB Physical Properties
Gauge Nominal
Insulation
Wall (in.) Nominal
Jacket
Wall (in.) Nominal
Diameter
(in.) Approx.
Ship. Wt
(lbs) per M

Characteristics Insulation Jacket

Specific Gravity 2.54 2.54

16

20

20 7/28

24

.006

.006

.006

.006

.006

.006

.006

.006

.080 x .144

.060 x .106

.066 x .118

.048 x .082

22

10

11

6

Tensile Strength; psi (min) 250,000
at 1000°F (537°C) 250,000
at 1000°F (537°C)

Elongation; %(min) 4.8 4.8

Minimum Bend Radius 5 x O.D. 10 x O.D.

Abrasion Resistance Good Good

Cut Through Resistance Very Good Excellent

Moisture Resistance Good Good

Solder Iron Resistance Excellent Excellent

Service Temperature 500°F(260°C) continuous 600°F (343°C) single exposure 500°F(260°C) continuous 1000°F (537°C) single exposure

Flame Test Non-flammable Non-flammable

Pricing Policy:	Shipments will be invoiced at PMC's prices in effect at time of shipment. Quotations are given with an escalation clause and prices, terms, and conditions are subject to change without prior notice. PMC will however, make every attempt to hold to current quoted prices. All prices are in United States currency, and shall be subject to correction for errors, unless otherwise stated in writing to PMC.
Reels, Spools & Coils:	All shipments, unless specified otherwise by PMC, are make on non-returnable reels, spools or coils in one continuous length.
Shortages & Returns:	All claims for shortage or incorrect material must be made within 10 days after receipt of the goods to which such claim pertains. Goods may only be returned for credit within 1 month of the date of authorization. Goods that are special in any way shall not be returned to PMC. Material returned for any reason, without written authorization will be refused a n returned at shipper's expense. A return request must be processed through our Manchester, N.H. sales office.
Tolerances:	Due to allowances in manufacturing processes for wire, cable and similar products, PMC-A Division of R-SCC reserves the right to ship variation of ± 10% from the quantity of such goods ordered. Physical tolerances shown are nominal. Shipping weights are an average of all types of conductors and are listed for estimation only. These weights can vary substantially due to different types of spools, reels and/or conductors. The material contained in the document is presented in good faith and believed to be reliable and accurate. However, because testing conditions may vary and material quality or information that may be provided in whole or part by others may be beyond our control, no warranty, expressed or implied, is given PMC-A Division of R-SCC can assume no liability for results obtained or damages incurred through the application of the data tests presented. Note: PMC-A Division of R-SCC reserves the right to substitute an equal product on all registered trademark items.

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