001 Front Cover

@ntctlAno.e Metal Protection Tubes - ,r " Nominal Pipe Sizes (NPS) Richards metal thermocouple protection tubes are manufactured using our special processes to maximize the tube service life. This is evident by our uniquely shaped, heavy mass tips, which have been proven in the field for years. Prior to shipment, each tube goes thru our Hydro-Pneumatic testing to check for porosity. Protection tubes are typically made with a closed tip and one thread on the cold end, but they are also available with open ends and various threading options. Open Tube Examples: The part number 601-YOBE-12 signifies a 1" O.D., Alloy 601, open both ends, with no threads' The part number 601-OBE-12 signifies a 1" O.D., Alloy 601, open both ends, with one end threaded. The part number 601-OBE2T-12 signifies a 1" O.D., Alloy 601, open both ends, with both ends threaded. Closed Tube Examples: The part number 601-12 signifies a 1" O.D., Alloy 601 , closed one end, with one end threaded. The part number 601-12-NT signifies a 1" O.D., Alloy 601, closed one end, with no threads. t Maximum service 1 " Std 1 .32 33.4 1 .05 26.7 1 .80 2.66 601-*

#6 Seamless Nickel Alloy (601) Nickel 60.5"/", Chromium 23o/o lron 14o/", Aluminum 1.4% Copper .5"/", Manganese .57o Silicon .2/", Carbon .05% 6'ol #7 Seamless Stainless Steel (446) Chromium 23-27o/o Manganese 1 .5% Silicon 1%

3/4" Std 1.05 267 .82 20.8 1.20 1.79 314" NPT 1.25 31.8 .56 14.2 3.20 4.76

temperature 2300"F (1260'C) in oxidizing atmospheres. Good resistance to sulfidizi ng atmospheres. Maximum service temperature 2100"F (1150"C) in oxidizing atmospheres. Excellent resistance to sulfidizi ng atmospheres, corrosion, Maximum service temperature 1600"F (1870"C) in oxidizing atmospheres. Frequently used in chemical applications due to corrosion resistance. Subject to carbide precipitation between 800-1000'F (427-538'C). Maximum seruice temperalure 2100"F (1 1 50"C) in oxidizing atmospheres. Excellent scaling, salts, and abrasion. Not for carburizing atmospheres.

634'*

634SP-.

.35

.3 .62 15.7 .91

1/2" Std .84 21

622'* 638-* 701-*

1

3/8" Std .68 17.2 .49 12.4 .61 .91

.68 2.50

.05 26.7 1

1" std 1.32 33.4 1

.05 26,7 .74 18.8 1.47 2.19 .8 .56 14.2 3.20 4.76 .3 .62 15.7 .85 .2 .55 14.0 1.09 1.62 1 .27

XH 1

734XH 734SP

314"

314" NPT 1.25 31 1/2" Std .84 21 XH .84 21 112"

722-*

Nitrogen .25% Carbon .20% Sulphur .030% Phosphorous .040% lron (Balance)

712XH 712SP

.87 2.78

.00 25.4 .56 14.2 1

1/2" NPT 1

3/8" Std .68 17.3 .49 12.4 .57 .85 114" XH .54 13.7 .25 6.4 .42 .63 1/4" NPT .50 12.7 .25 6.4 .48 .72

738'*

4.46SS

714XH 714SP

.68 2.50

.05 267 1

1 .32 33.5 1

" Std

801-* 834-*

#8 Seamless Stainless Steel (304) Chromium 19% Nickel 10% Manganese 2o/o Silicone 1% Carbon .08% Phosphorous .045% Sulphur .030 % lron (Balance) IO4SS #9 Seamless Nickel Alloy (600) Nickel 76% Chromium 15.5% lron B"h Manganese .5%

1

.68

.13

.05 26.7 .82 20.8 1

3/4" Std 1

1

gl4" xH 1 .05 26.7 .74 18.8 1.47 2.19 gl4" NPT 1.25 31.8 .56 14.2 3.20 4.76

834XH-* 834SP-.

.3 .62 15.7 .85 1.27

1/2" Std .84 21 XH .84 21 112"

822-*

.62

.09

.2 .55 14.0 1

812XH-*

1

3/8" Std .68 17.3 .49 12.4 .57 .85 1/4"Std .54 13.7 .36 9.1 .42 .63 1/8"Std .41 10.4 .27 ' 6.9 .24 .36

838-* 814-* 818-* 901-* 934-*

.80 2.66

.05 26.7 1

1 ,32 33.5 1

" Std

1

.05 26"7 .82 20.8 1.22 1.81

3/4" Std 1

.51 2.25

1 .05 26.7 .74 18.8 1

gl4" xH

934XH-* 934SP-.

.B .56 14.2 3.20 4]6 .3 .62 157 .91 1 .35

314" NPT 1.25 31 1/2" Std .84 21 XH .84 21 112"

resistance to carburisation.

922'*

Silicon .2% Copper .2"h Carbon .08%

.74

.17

.3 .55 14.0 1

912XH-*

Frequently used in salt baths. Avoid sulfidizing atmospheres.

1

3/8" Std .68 17.3 .49 12.4 .61 .91 1/4" Std .54 137 .36 9.1 .46 .68 1 /8" Std .41 10.4 .27 6.9 .26 .39

938-* 914-* 91 8-*

(rOO

#10 Seamless Nickel Alloy (800) Nickel 35"/", Chromium 23h lron 39.5"h, Manganese 15%

Maximum seruice temperalure 2100"F (1150"C) in oxidizing or reducing atmospheres. Good resistance to sulfidizi nq atmospheres.

]2 2.56

.05 26.7 1

1 .32 33.5 1

" Std

1001-*

1

.71 .66

.05 26.7 .82 20.8 1 .1 5

3/4" Std 1

034-.

1

1

Silicon 1"h, Copper .75o/" Aluminum & lltanium.6% Carbon .1% rrrsl'rvlrrrv/v

,12

.3 .55 14.0 1

XH .84 21

1012XH-*

1

112"

8OO

Replace the * in the above part number with the required length (P) as the sufiix' Protection tubes are stocked in multiples of 6" starting at 12", although aly&lg!!-gq! !9 :PggIlg4

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