Your Source for
Fluid Sealing Products

RTJ Material Hardness & Sizes

Material Hardness Conversion Scale
Material Hardness
Size Designations for Oval or Octagonal Rings
Dimensions for Oval or Octagonal Rings
RX Gaskets for API 6B Flanges
BX Gaskets for API 6BX Flanges

Material Hardness Conversion Scale
Rockwell "B"Brinell 3000 Kg. LoadRockwell "B"Brinell 3000 Kg. Load
1002416095
95210 5589
90183 5083
85163 4075
801463067
751342062
701221057
65108  

Material Hardness
MaterialDesignationMaximum
Hardness
Rockwell B
Maximum
Hardness
Brinell
Soft Iron D5690
Low Carbon Steel S68120
4-6 Chrome F-5*72130
304 Stainless Steel S30483 160
316 Stainless Steel S31683160
347 Stainless Steel S34783160
410 Stainless Steel S41086170

Size Designations for Oval or Octagonal Rings
NominalPipe Size
Flange Pressure Rating
150#300-600#900#1500#2500#
1/2- R-11R-12R-12R-13
3/4- R-13R-14R-14R-16
1R-15R-16R-16R-16R-18
1-1/4R-17R-18R-18R-18R-21
1-1/2R-19R-20R-20R-20R-23
2 R-22R-23R-24R-24R-26
2-1/2R-25R-26R-27R-27R-28
3 R-29R-31 (R-30 for lapped joint)R-31R-35R-32
3-1/2R-33R-34-- -
4 R-36R-37R-37R-39R-38
5 R-40R-41R-41R-44R-42
6 R-43R-45R-45R-46R-47
8 R-48R-49R-49R-50R-51
10 R-52R-53R-53R-54R-55
12 R-56R-57R-57R-58R-60
14 R-59R-61R-62R-63-
16 R-64R-65R-66R-67-
18 R-68R-69R-70R-71-
20 R-72R73 R-74R-75-
22 R-80R-81- - -
24 R-76R-77R-78R-79-
26 - R-93R-100- -
28 - R-94R-101- -
30 - R-95R-102- -
32 - R-96R-103- -
34 - R-97R-104- -
36 - R-98R-105- -
* F5 identification designates ASTM Specification A-182 chemical composition requirements only.

Dimensions for Oval or Octagonal Rings
A.S.A. and
A.P.I.Ring
Number
Gasket Dimensions (Inches)
Gasket Weight lbs.
Center ToCenter Inside DiameterOutside DiameterWidth of RingHeight of Ring
Oval       Octagonal Oval Rings Octagonal Rings
R11 1-11/32 1-3/32 1-19/321/4 7/16 3/80.1110.104
R12 1-9/16 1-1/4 1-7/8 5/16 9/16 1/20.2160.2
R13 1-11/16 1-3/8 2 5/16 9/16 1/20.2340.216
R14 1-3/4 1-7/16 2-1/16 5/16 9/16 1/20.2420.224
R15 1-7/8 1-9/16 2-3/16 5/16 9/16 1/20.26 0.24
R16 2 1-11/16 2-5/16 5/16 9/16 1/20.2780.256
R17 2-1/4 1-15/16 2-9/16 5/16 9/16 1/20.3110.288
R18 2-3/8 2-1/16 2-11/165/16 9/16 1/20.3280.304
R19 2-9/16 2-1/4 2-7/8 5/16 9/16 1/20.3540.328
R20 2-11/16 2-3/8 3 5/16 9/16 1/20.3720.344
R21 2-27/32 2-13/32 3-9/32 7/16 11/165/80.66 0.643
R22 3-1/4 2-15/16 3-9/16 5/16 9/16 1/20.45 0.415
R23 3-1/4 2-13/16 3-11/167/16 11/165/80.7550.734
R24 3-3/4 3-5/16 4-3/16 7/16 11/165/80.87 0.846
R25 4 3-11/16 4-5/16 5/16 9/16 1/20.5530.51
R26 4 3-9/16 4-7/16 7/16 11/165/80.93 0.904
R27 4-1/4 3-13/16 4-11/167/16 11/165/81.05 0.96
R28 4-3/8 3-7/8 4-7/8 1/2 3/4 11/161.2551.23
R29 4-1/2 4-3/16 4-13/165/16 9/16 1/2 0.6220.575
R30 4-5/8 4-3/16 5-1/16 7/16 11/165/8 1.0751.047
R31 4-7/8 4-7/16 5-5/16 7/16 11/165/8 1.13 1.1
R32 5 4-1/2 5-1/2 1/2 3/4 11/161.4351.405
R33 5-3/16 4-7/8 5-1/2 5/16 9/16 1/2 0.7180.664
R34 5-3/16 4-3/4 5-5/8 7/16 11/165/8 1.2 1.17
R35 5-3/8 4-15/16 5-13/167/16 11/165/8 1.25 1.21
R36 5-7/8 5-9/16 6-3/16 5/16 9/16 1/2 0.8130.735
R37 5-7/8 5-7/16 6-5/16 7/16 11/165/8 1.36 1.33
R38 6-3/16 5-9/16 6-13/165/8 7/8 13/162.56 2.52
R39 6-3/8 5-15/16 6-13/167/16 11/165/8 1.48 1.44
R40 6-3/4 6-7/16 7-1/16 5/16 9/16 1/2 0.9350.865
R41 7-1/8 6-11/16 7-9/16 7/16 11/165/8 1.66 1.61
R42 7-1/2 6-3/4 8-1/4 3/4 1 15/164.21 4.16
R43 7-5/8 7-5/16 7-15/165/16 9/16 1/2 1.0550.975
R44 7-5/8 7-3/16 8-1/16 7/16 11/165/8 1.77 1.73
R45 8-5/16 7-7/8 8-3/4 7/16 11/165/8 1.93 1.88
R46 8-5/16 7-13/16 8-13/161/2 3/4 11/162.39 2.33
R47 9 8-1/4 9-3/4 3/4 1 15/165.06 4.99
R48 9-3/4 9-7/16 10-1/165/16 9/16 1/2 1.35 1.24
R49 10-5/8 10-3/16 11-1/167/16 11/165/8 2.47 2.4
R50 10-5/8 10 11-1/4 5/8 7/8 13/164.4 4.32
R51 11 10-1/8 11-7/8 7/8 1-1/81-1/168.05 8.17
R52 12 11-11/16 12-5/165/16 9-16 1/2 1.66 1.53
R53 12-3/4 12-5/16 13-3/167/16 11/165/8 3 2.88
R54 12-3/4 12-1/8 13-3/8 5/8 7/8 13/165.29 5.18
R55 13-1/2 12-3/8 14-5/8 1-1/81-7/161-3/816.2317.08
R56 15 14-11/16 15-5/16 5/16 9/16 1/2 2.07 1.92
R57 15 14-9/16 15-7/16 7/16 11/16 5/8 3.48 3.38
R58 15 14-1/8 15-7/8 7/8 1-1/8 1-1/16 11 11.13
R59 15-5/8 15-5/16 15-15/16 5/16 9/16 1/2 2.16 2
R60 16 14-3/4 17-1/4 1-1/4 1-9/16 1-1/2 23.1 23.5
R61 16-1/2 16-1/16 16-15/16 7/16 11/16 5/8 3.83 3.73
R62 16-1/2 15-7/8 17-1/8 5/8 7/8 13/16 6.84 6.71
R63 16-1/2 15-1/2 17-1/2 1 1-5/16 1-1/4 16.20 16.67
R64 17-7/8 17-9/16 18-3/16 5/16 9/16 1/2 2.47 2.29
R65 18-1/2 18-1/16 18-15/16 7/16 11/16 5/8 4.3 4.18
R66 18-1/2 17-7/8 19-1/8 5/8 7/8 13/16 7.67 7.53
R67 18-1/2 17-3/8 19-5/8 1-1/8 1-7/16 1-3/8 22.3 23.4
R68 20-3/8 20-1/16 20-11/16 5/16 9/16 1/2 2.82 2.6
R69 21 20-9/16 21-7/16 7/16 11/16 5/8 4.87 4.74
R70 21 20-1/4 21-3/4 3/4 1 15/16 11.80 11.64
R71 21 19-7/8 22-1/8 1-1/8 1-7/16 1-3/8 25.2 26.5
R72 22 21-11/16 22-5/16 5/16 9/16 1/2 3.04 2.81
R73 23 22-1/2 23-1/2 1/2 3/4 11/16 6.6 6.47
R74 23 22-1/4 23-3/4 3/4 1 15/16 12.95 12.75
R75 23 21-3/4 24-1/4 1-1/4 1-9/16 1-1/2 33.3 35.3
R76 26-1/2 26-3/16 26-13/16 5/16 9/16 1/2 3.66 3.38
R77 27-1/4 26-5/8 27-7/8 5/8 7/8 13/16 11.3 11.1
R78 27-1/4 26-1/4 28-1/4 1 1-5/16 1-1/4 27.1 27.58
R79 27-1/4 25-7/8 28-5/8 1-3/8 1-3/4 1-5/8 48.7 49.75
R80 24-1/4 23-15/16 24-9/16 5/16 - 1/2 - 3.11
R81 25 24-7/16 25-9/16 9/16 - 3/4 - 8.55
R82 2-1/4 1-13/16 2-11/16 7/16 - 5/8 - 0.508
R84 2-1/2 2-1/16 2-15/16 7/16 - 5/8 - 0.564
R85 3-1/8 2-5/8 3-5/8 1/2 - 11/16 - 0.978
R86 3-9/16 2-15/16 4-3/16 5/8 - 13/16 - 1.447
R87 3-15/16 3-5/16 4-9/16 5/8 - 13/16 - 1.597
R88 4-7/8 4-1/8 5-5/8 3/4 - 15/16 - 2.735
R89 4-1/2 3-3/4 5-1/4 3/4 - 15/16 - 2.528
R90 6-1/8 5-1/4 7 7/8 - 1-1/16 - 4.55
R91 10-1/4 9 11-1/2 1-1/4 - 1-1/2 - 15.05
R92 9 8-9/16 9-7/16 7/16 11/16 5/8 2.07 2.02
R93 29-1/2 28-3/4 30-1/4 3/4 - 15/16 - 16.33
R94 31-1/2 30-3/4 32-1/4 3/4 - 15/16 - 17.44
R95 33-3/4 33 34-1/2 3/4 - 15/16 - 18.69
R96 36 35-1/8 36-7/8 7/8 - 1-1/16 - 26.65
R97 38 37-1/8 38-7/8 7/8 - 1-1/16 - 28.13
R98 40-1/4 29-3/8 41-1/8 7/8 - 1-1/16 - 29.79
R99 9-1/4 8-13/16 9-11/16 7/16 - 5/8 - 2.08
R100 R100 through R105. Information on request


RX Gaskets for API 6B Flanges
API Ring Number
Sizes of Flange (Inches)
Gasket Weight lbs.
720-960 2000lbs.2900- lbs.3000- lbs.5000- lbs.
RX20 1-1/2 - 1-1/2 1-1/2 0.527
RX23 2 - - - 1.15
RX24 - - 2 2 1.33
RX26 2-1/2 - - - 1.42
RX27 - - 2-1/2 2-1/2 1.5
RX31 3 - 3 - 1.73
RX35 - - - 3 1.91
RX37 4 - 4 - 2.09
RX39 - - - 4 2.27
RX41 5 - 5 - 2.54
RX44 - - - 5 2.72
RX45 6 - 6 - 2.96
RX46 - - - 6 3.66
RX47 - - - 8* 8.56
RX49 8 - 8 - 3.79
RX50 - - - 8 5.36
RX53 10 - 10 - 4.56
RX54 - - - 10 6.45
RX57 12 - 12 - 5.36
RX63 - - - 14 26.4
RX65 16 - - - 6.63
RX66 - - 16 - 9.39
RX69 18 - - - 7.52
RX70 - - 18 - 20.14
RX73 20 - - - 11.63
RX74 - - 20 - 22.1
RX82 - 1 - - 0.79
RX84 - 1-1/2 - - 0.88
RX85 - 2 - - 0.88
RX86 - 2-1/2 - - 1.79
RX87 - 3 - - 1.98
RX88 - 4 - - 3.22
RX89 - 3-1/2 - - 2.98
RX90 - 5 - - 6.82
RX91 - 10 - - 17.1
RX99 - - 8* - 3.31
RX201 - - - 1-1/4 0.25
RX205 - - - 1-3/4 0.3
RX210 - - - 2-1/2 0.75
RX215 - - - 4 1.5
*Crossover flange connection.

BX Gaskets for API 6BX Flanges
API Ring Number
Nominal Flange Bore (Inches)
Gasket Weight lbs.
2,000 psi3,000 psi5,000 psi10,000 psi15,000 psi20,000 psi
BX-150 - - - 1-11/16 1-11/16 - 0.295
BX-151 - - - 1-13/16 1-13/16 1-13/16 0.337
BX-152 - - - 2-1/16 2-1/16 2-1/16 0.425
BX-153 - - - 2-9/16 2-9/16 2-9/16 0.632
BX-154 - - - 3-1/16 3-1/16 3-1/16 0.875
BX-155 - - - 4-1/16 4-1/16 4-1/16 1.22
BX-156 - - - 7-1/16 7-1/16 7-1/16 4.14
BX-157 - - - 9 9 - 6.55
BX-158 - - - 11 11 - 9.6
BX-159 - - - 13-5/8 - - 14.41
BX-160 - - 13-5/8 - - - 6.75
BX-161 - - 16-3/4 - - - 10.437
BX-162 - - 16-3/4 - - - 4.375
BX-163 - - 18-3/4 - - - 14.375
BX-164 - - - - - - 21
BX-165 - - 21-1/4 - - - 18.375
BX-166 - - - - - - 27.5
BX-167 26-3/4 - - - - - 18
BX168 - 26-3/4 - - - - 24.5
BX-169 - 5-1/8 - - - - -
BX-170 - 6-5/8 - - - - -
BX-171 - 8-9/16 - - - - -
BX-172 - 11-5/32 - - - - -
BX-303 - 30 - - - - -
top


Properties and application parameters shown throughout this datasheet are typical. Your specific application should not be undertaken without independent study and evaluation for suitability. For specific application recommendations consult TEADIT. Failure to select proper sealing products could result in property damage and/or serious personal injury. Specifications are subject to change without notice. This edition supersedes all previous issues.


Copyright © 2014 Teadit N.A.
10545 Red Bluff Rd. Pasadena TX 77503
TOLL FREE: 800-999-0198 PHONE: 281-476-3900 FAX: 281-476-3999
sales@teadit.com