Class 300 Pipe Flanges

Class 300 Flange

Class 300 Weld Neck Flange And SORF Flange Dimensions in MM, view Maximum Pressure Of ANSI B16.5 Stainless Steel Cl 300# Flange


Pressure ratings are an aspect of most ASME standards. An application succeeds on the shoulders of a proper pressure rated flange. Hence, the choice of using ASME B16.5 Class 300 Flange is restricted to those applications where medium to low pressure requirements are a must. This being said, one cannot make use of a pipe, where the pressure of media flow exceeds the capacity of a 300 Lb Stainless Steel Flange, simply because it is bound to fail. Failure could result either in cracking or it could result in halting the entire application. According to standard ASME B16.5, the Welding Neck Flange ASME B16.5 Class 300 can be made from forged or cast steel in addition to steel plates. Typically the flanges produced from forged steels have much higher impact resistance and their surface is very smooth as well. Forged steels are associated with components that have aligned grains to their shape.

And so is the case of Class 300 Pipe Flanges Pressure Ratinge, where forging aligns the grain flow to the form of the flange. Under standard ASME B16.5 details like size, pressure class, material, tolerances, 1 inch Flanges 300# Dimension, marking as well as testing are standardized, which is why they could be used the world over. The specifications also include joints, bolts and gaskets, which are supplementary for the Carbon Steel Class 300 Pipe Flanges.

Class 300 Flange

Class 300 Flange

1 inch Flanges 300#

1 inch Flanges 300#

300 Lb Blind Flange

300 Lb Blind Flange


class 300 pipe flanges
Table of Contents


Class 300 Pipe Flanges Maximum Pressure

Temperature (in F°)
300#
100
740
200
680
300
655
400
635
500
605
600
570
650
550
700
530
750
505
800
410
850
320
900
230
950
135
1000
85
Hydrostatic Test Pressure (psig)
1125


1 inch Flanges 300# Dimensional Format

1 inch Flanges 300# Dimensional Format

Normal Size Of Pipe Outside
diameter of
flanges		 Minimum
thick.
of flanges		 Overall Length Bolt
Circle		 No. and
Size of
Holes		 O.D. of
raised
face
WN SORF
& SW		 Lap Joint
O Q Y Diammeter Number diameter R
1/2 95 14.3 52.4 22.2 22.2 666.5 4 15 35
3/4 117 15.9 57.2 25.4 25.4 82.4 4 19 43
1 124 17.5 61.9 27.0 27.0 89.0 4 19 51
1-1/4 133 19.1 65.1 27.0 27.0 98.5 4 19 64
1-1/2 156 20.7 68.3 30.2 30.2 114.5 4 22 73
2 165 22.3 69.8 33.3 33.3 127.0 8 19 92
2-1/2 190 25.4 76.2 38.1 38.1 149.0 8 22 105
3 210 28.6 79.4 42.9 42.9 168.0 8 22 127
4 254 318 85.7 47.6 47.6 200.0 8 22 157
5 279 35.0 98.4 50.8 50.8 235.0 8 22 186
6 313 36.6 98.4 52.4 52.4 270.0 12 22 216
6 381 413 111.1 61.9 91.9 330.0 12 25 270
10 444 47.7 117.5 66.7 95.3 387.5 16 29 324
12 521 50.8 130.2 73.0 101.6 451.0 16 32 381
14 584 54.0 142.9 76.2 111.1 514.5 20 32 413
16 648 57.2 146.0 82.6 120.7 571.5 20 35 470
18 711 60.4 158.8 88.9 130.2 628.5 24 35 533
20 775 63.5 161.9 95.2 139.7 686.0 24 35 584
24 914 69.9 168.3 106.4 152.4 843.0 24 41 692


Get Alloy Steel Class 300 Pipe Flanges At Best Price In India, Specification Chart Of 1 inch Flanges 300lb, Flanges 300# manufacturers in India.


300 Lb Blind Flange Material Specification

Specification : ASME B16.5 Class 300 Flange
EN Standards 40Bar 25Bar 10Bar 16Bar 6Bar
Manufacturing Shapes Ring Type Joint, Flat Face, Raised Face, Lap-Joint Face, Small Tongue, Large Tongue & Groove, Large Male-Female, Groove, Small Male-Female
Pressure Rating ANSI 600 LBS, 2500 LBS 900 LBS, 1500 LBS, Class 150 LBS, 300 LBS
Most common types Threaded / Forged / Plate /Screwed
Japanese Standards 16 K 20 K, 5K, 10 K, 40 K, 30 K, 63 K
Production technique
  • Heat treated, Forged and machined
Size Chart 1/2" to 48"
Standards MSS S44, ISO70051, EN-1092, DIN, ANSI, ASME/ANSI B16.5/16.36/16.47A/16.47B, BS1560-3.1, ANSI/ASME B16.5, B16.47 Series A & B, B16.48, API7S-15, EN1092, API7S-43, API605, BS4504
UNI Standards 25Bar 6Bar 40Bar 10Bar 16Bar

View Duplex Steel 300 Lb Blind Flange Weight Chart, Check Welding Neck Flange ASME B16.5 Class 300 Size Chart, Suppliers Of ASTM A105 Class 300 Flange In India, Thickness Of Class 300 Pipe Flanges.


ASME B16.5 Class 300 Weight Chart Table

CLASS Noraml Size Of Pipe SORF NPT SW Lap Joint BLRF WN
300# ½ 1 1 2 1 2 2
¾ 2 2 2 2 2 2
1 2 2 2 2 2 3
1¼ 3 3 3 3 3 3
1½ 3 3 3 3 4 4
2 5 5 5 5 5 6
2½ 8 8 8 8 7 10
3 9 9 9 9 9 11.5
3½ 11 12 11 11 13 12
4 13 13 13 13 17 16.5
5 15 15 15 15 20 21
6 19 19 19 19 27 26
8 30 30 30 30 47 42
10 43 43 43 43 70 54
12 64 64 64 64 123 88
14 90 90 90 105 140 114
16 106 98 98 140 180 140
18 130 130 130 160 220 165
20 165 165 165 195 285 197
22 185 185 185 245 355 225
24 220 220 220 275 430 268


Size Chart Of ASTM A105 Class 300 Flange

Noraml Size Of Pipe
(inch)		 300LB
Diammeter of
Flange
(inch)		 No.
of
Bolts		 Diammeter of
Bolts
(inch)		 Diammeter of
Bolt Holes
(inch)		 Bolt
Circle
(inch)
1/4 3-3/8 4 1/2 0.62 2-1/4
1/2 3-1/2 4 1/2 0.62 2-3/8
3/4 3-7/8 4 1/2 0.62 2-3/4
1 4-1/4 4 1/2 0.62 3-1/8
1-1/4 4-5/8 4 1/2 0.62 3-1/2
1-1/2 5 4 1/2 0.62 3-7/8
2 6 4 5/8 0.75 4-3/4
2-1/2 7 4 5/8 0.75 5-1/2
3 7-1/2 4 5/8 0.75 6
3-1/2 8-1/2 8 5/8 0.75 7
4 9 8 5/8 0.75 7-1/2
5 10 8 3/4 0.88 8-1/2
6 11 8 3/4 0.88 9-1/2
8 13-1/2 8 3/4 0.88 11-3/4
10 16 12 7/8 1 14-1/4
12 19 12 7/8 1 17
14 21 12 1 1.12 18-3/4
16 23-1/2 16 1 1.12 21-1/4
18 25 16 1-1/8 1.25 22-3/4
20 27-1/2 20 1-1/8 1.25 25
24 32 20 1-1/4 1.38 29-1/2


We provide Mild Steel Grooved Flange Class 300 3rd Party Testing, Rf Class 300 Flange Stockists In India, Get Free Quote Stainless Steel Class 300 Flange, We provide Flange Class 300 Lbs In-House Cutting, Buy from oldest ASME B16.5 Class 300 Flange Suppliers in India.

Available Stainless Steel Class 300 Flange Types

1-1/4 inch, F316L, RF, Threaded 300# Flange

1-1/4 inch, F316L, RF, Threaded 300# Flanges

2 inch, 304L, Sch 20, Weldneck 300LB Flange

2 inch, 304L, Sch 20, Weldneck 300LB Flanges

4 x 2 inch, F321, Stainless Steel 300# Flange

4 x 2 inch, F321, Stainless Steel 300# Flanges

2 inch, Schedule 10, F316L, Raised Face 300# Flange

2 inch, Schedule 10, F316L, Raised Face 300# Flanges

10 inch, F304L, Full Face Slip-On 300# Flange

10 inch, F304L, Full Face Slip-On 300# Flanges

1 inch, IPS 300#, Stainless Steel Back-Up Ring

1 inch, IPS 300#, Stainless Steel Back-Up Ring

1/2 inch, A182 F317L, Carbon Steel Blind 300# Flange

1/2 inch, A182 F317L, Carbon Steel Blind 300# Flanges

1 inch, F304, SCH 80, RF SW 300# Flange

1 inch, F304, SCH 80, RF SW 300# Flanges

1/2 inch, SCH 10, F316L, Socket Weld 300# Flange

1/2 inch, SCH 10, F316L, Socket Weld 300# Flanges

6 inch, Stainless Steel WN 300# 304L Flange

6 inch, Stainless Steel WN 300# 304L Flanges

12 inch, F317L, Sch 120, Socket Weld 300# Flange

12 inch, F317L, Sch 120, Socket Weld 300# Flanges

4 inch, F316L, Stainless Steel Threaded 300# Flange

4 inch, F316L, Stainless Steel Threaded 300# Flange


Looking to buy Copper Class 300 Flange manufacturers in India? contact Rajveer Stainless And Alloy At Factory Price, Check Also Sorf Flange 300lb Weight Chart And 30 Inch 300# Flanges Dimensions In Millimeter.

Carbon Steel 300# Flange Thickness Chart

Normal Size Of Pipe "A"
(O.D.)		 "B"
(Thick.)		 "C"
(RF Diameter)		 "D"
(B.C.D.)		 # Bolt
Holes		 Diameter of
Bolt Holes		 Appr.
Weight
1/2" 3-1/2 7/16 1-3/8 2-3/8 4 5/8 2
3/4" 3-7/8 1/2 1-11/16 2-3/4 4 5/8 2
1" 4-1/4 9/16 2 3-1/8 4 5/8 2
1-1/4" 4-5/8 5/8 2-1/2 3-1/2 4 5/8 3
1-1/2" 5 11/16 2-7/8 3-7/8 4 5/8 3
2" 6 3/4 3-5/8 4-3/4 4 3/4 4
2-1/2" 7 7/8 4-1/8 5-1/2 4 3/4 7
3" 7-1/2 15/16 5 6 4 3/4 9
3-1/2" 8-1/2 15/16 5-1/2 7 8 3/4 13
4" 9 15/16 6-3/16 7-1/2 8 3/4 17
5" 10 15/16 7-5/16 8-1/2 8 7/8 20
6" 11 1 8-1/2 9-1/2 8 7/8 27
8" 13-1/2 1-1/8 10-5/8 11-3/4 8 7/8 47
10" 16 1-3/16 12-3/4 14-1/4 12 1 67
12" 19 1-1/4 15 17 12 1 123
14" 21 1-3/8 16-1/4 18-3/4 12 1-1/8 139
16" 23-1/2 1-7/16 18-1/2 21-1/4 16 1-1/8 187
18" 25 1-9/16 21 22-3/4 16 1-1/4 217
20" 27-1/2 1-11/16 23 25 20 1-1/4 283
24" 32 1-7/8 27-1/4 29-1/2 20 1-3/8 415

Flange Class 300 Lbs Bolt Length Table

300LB Flanges
Nominal Size Of Pipe # Bolts or Studs Dia of Bolts or Studs Length of Stud
1/16 RF RTJ
1/2 4 0.50 2-1/4 -
3/4 4 0.50 2-1/2 -
1 4 0.50 2-1/2 3
1-1/4 4 0.50 2-3/4 3-1/4
1-1/2 4 0.50 2-3/4 3-1/4
2 4 0.63 3-1/4 3-3/4
2-1/2 4 0.63 3-1/2 4
3 4 0.63 3-1/2 4
3-1/2 8 0.63 3-1/2 4
4 8 0.63 3-1/2 4
5 8 0.75 3-3/4 4-1/4
6 8 0.75 4 4-1/2
8 8 0.75 4-1/4 4-3/4
10 12 0.88 4-1/2 5
12 12 0.88 4-3/4 5-1/4
14 12 1.00 5-1/4 5-3/4
16 16 1.00 5-1/4 5-3/4
18 16 1.13 5-3/4 6-1/4
20 20 1.13 6-1/4 6-3/4
24 20 1.25 6-3/4 7-1/4


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