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Class 300 Flange

Refer ANSI 300 SORF, Blind and Weld Neck Flange dimensions in mm


Class 300 Flange Specification

Most Selling Size

Most Selling Size :

  • NPS: ½” to 36″
Available Thk

Available Thk :

  • SCH 160/ 180
  • SCH 120/ 140
  • SCH 60/ 80/ 100
  • SCH 10/ 20/ 40
Manufacturing Technique

Manufacturing Technique :

  • Threaded
  • Forged
  • Plate
Process

Process :

  • Material selection & cutting
  • Shaping
  • Heat treatment & forming
  • Forging & machining
  • Surface finish
  • Inspection
  • Quality control
Classification :

Classification :

  • SORF
  • LWNRF
  • JRF
  • SWRF
  • BLRF
  • WNRF
  • THRF
Number

Number :

  • 4 To 48
Forging Types

Forging Types :

  • Casting
  • Forging
  • Rolling
  • Cutting
Pressure Class

Pressure Class :

  • Class 125, 150
  • Class 300, 400
  • Class 1500, 2500
  • Class 600, 900
Available Material:

Available Material:

  • Carbon steel
  • Nickel alloy
  • Titanium
  • Copper nickel
  • Alloy steel
  • Stainless steel
Faces Types

Faces Types :

  • RF face (Raised)
  • FF face (Plain or flat)
  • RTJ face (Ring type joint)
  • M&F face (Male & female)
Surface Treatment Type :

Surface Treatment Type :

  • Cold water finish
  • Concentric serrated
  • Serrated & smooth finish
  • Spiral serrated
  • Mirror finish
  • Stock finish
Types Of Packaging

Types Of Packaging :

  • Wooden case
  • Carton box
  • Plastic bag
Testing & Inspection

Testing & Inspection :

  • Tensile test
  • Impact test
  • PMI test
  • Hardness test
  • Visual inspection
  • Material inspection
Resistance

Resistance :

  • Alkalies and Salts
  • Organic Acid
  • Sulfuric Acid
  • Phosphoric Acid
  • Nitric Acid
  • Hydrochloric Acid
Threads

Threads :

  • BSPP (Male & female)
  • MNPT (Male)
  • MPT/ BSPT (Female)
  • NPT/ BSP/ FPT
Logistics Way

Logistics Way :

  • Qatar = 7 day
  • Saudi Arabia = 7 to 8 day
  • By Air
  • By Sea
  • UAE = 6 to 7 day
Services

Services :

  • Drilling/ Electroplating
  • Threading/ Forging
  • Beveling end/ Polishing
  • CNC machined/ Casting
  • Sand Blasting/ Rolling
Types Of Connection

Types Of Connection :

  • Welding
  • Threaded


  • Price stability can be seen in Class 300 Flange manufacturer in India
  • ASME B16.5 Class 300 Welding Neck Flange have high corrosion resistance, particularly to stress corrosion cracking
  • Very little or no maintenance material
  • Class 300 Forged Flanges are suitable for harsh conditions.
  • Buy from Class 300 Flange manufacturer in India for factory price
  • A largest Manufacturer, Traders, Wholesaler, Distributor, Source, Stock, Stockholder, Suppliers, Dealer, Distributor, Importer, Exporter, Fabricator & Stockist in Asia & Middle East.

Why pay extra? Buying from ASME CL300 Slip On Flange manufacturers save your cost, wide selection of ANSI 300 Socket Weld Flange and Orifice Flanges in India


ASME B16.5 Class 300 Blind Flanges Price


Size Price In US$ (Dollar) per unit Price In Dirham (AED) per unit
15mm US $3.96 14.55
20mm US $4.55 16.71
25mm US $4.99 18.33
32mm US $5.85 21.49
40mm US $5.30 19.47
50mm US $6.99 25.67
65mm US $8.85 32.51
100mm US $13.77 50.58
125mm US $16.53 60.71
200mm US $33.88 124.44
300mm US $73.99 271.77
400mm US $115.96 425.92
500mm US $205.935 756.40

Class 300 Slip-on Flanges Price List


Size Price In US$ (Dollar) per unit Price In Dirham (AED) per unit
15mm US$ 3.79 13.92
20mm US$ 3.99 14.66
25mm US$ 4.37 16.05
32mm US$ 5.35 19.65
40mm US$ 5.56 20.42
50mm US$ 6.65 24.43
65mm US$ 10.47 38.46
100mm US$ 15.13 55.57
125mm US$ 18.21 66.89
200mm US$ 31.90 117.17
300mm US$ 73.99 271.77
400mm US$ 159.09 584.34
500mm US$ 226.821 833.12

ASME CL300 Weld Neck Flanges Price


Size Schedule Price In US$ (Dollar) per unit Price In Dirham (AED) per unit
10" SCH 80 US $36.11 132.63
3" SCH 80 US $8.13 29.86
1" SCH 80 US $3.18 11.68
10" SCH 80 US $36.16 132.82
6" SCH 80 US $18.5 67.95
3" SCH 80 US $8.15 29.94
2" SCH 80 US $5.16 18.95
3" SCH 80 US $8.18 30.05
2" SCH 80 US $5.18 19.03
14" SCH 80 US $74.12 272.24
3" SCH 80 US $8.16 29.97
2" SCH 80 US $5.17 18.99

Types Of Class 300 Forged Flange


ASME CL300 Blind Flanges

ASME CL300 Blind Flanges

ANSI 300 Slip On Flanges

ANSI 300 Slip On Flanges

Welding Neck Flange ASME B16.5 Class 300

Welding Neck Flange ASME B16.5 Class 300

ANSI B16.5 Class 300 Socket Weld Flanges

ANSI B16.5 Class 300 Socket Weld Flanges

ASME B16.5 Class 300 Plate Flanges

ASME B16.5 Class 300 Plate Flanges

ASME 300 Lap Joint Flanges

ASME 300 Lap Joint Flanges

ANSI 300 LBS Threaded Flanges

ANSI 300 LBS Threaded Flanges

ASME 300 LBS Orifice Flanges

ASME 300 LBS Orifice Flanges

ASME Class 300 Spectacle Blind Flanges

ASME Class 300 Spectacle Blind Flanges

ANSI Class 300 RTJ Flanges

ANSI Class 300 RTJ Flanges

 ASME 300lb Raised Face Flanges

ASME 300lb Raised Face Flanges

300# Reducing Flanges

300# Reducing Flanges

ASME B16.5 Class 300 Welding Neck Flanges

ASME B16.5 Class 300 Welding Neck Flanges

 300LB Square Flanges

300LB Square Flanges

ANSI 300 Flat Flanges

ANSI 300 Flat Flanges

ASME CL300 Anchor Flanges

ASME CL300 Anchor Flanges

 ANSI 300 Large Diameter Flanges

ANSI 300 Large Diameter Flanges

Class 300 High Hub Blind Flanges

Class 300 High Hub Blind Flanges

Class 300 Flange Raised Face

Class 300 Flange Raised Face

 Class 300 Rtj Flange

Class 300 Rtj Flange

Class 300 Reducing Flange

Class 300 Reducing Flange

ANSI Class 300 RF Flange

ANSI Class 300 RF Flange

 Class 300 Pipe Flange

Class 300 Pipe Flange

Class 300 Plate Flange

Class 300 Plate Flange

Class 300 Aluminum Flange

Class 300 Aluminum Flange

 Class 300 Stainless Steel Flange

Class 300 Stainless Steel Flange

Class 300 Carbon Steel Flange

Class 300 Carbon Steel Flange

Class 300 Alloy Steel Flange

Class 300 Alloy Steel Flange

 Asa Class 300 Flange

Asa Class 300 Flange

Asme Class 300 Flat Face Flange

Asme Class 300 Flat Face Flange

Class 300 Sorf Flange

Class 300 Sorf Flange

 Gi Flange Class 300

Gi Flange Class 300

ASME Class 300 Lap Joint Flange

ASME Class 300 Lap Joint Flange

22 Nps Ansi 16.5 Class 300 Lapped Flange

22 Nps Ansi 16.5 Class 300 Lapped Flange

Loose Flange Class 300

Loose Flange Class 300

Class 300 Forged Flange

Class 300 Forged Flange


Class 300 Slip On Flange Dimensions


Normal Size Of Steel PipeInner DiameterOuter DaimeterSORF Circle Bolt (B.C.)RaisedRaised Face Of SORF SORF Hight (H)Wall Thickness Of (RF) Raised Face(T1)Thickness2
(Flat Face)
SORF Bolts Holes
Number Of SORF Flanges Bolt Hole
1/20.883.752.621.38.0631.500.880.500.820.624
3/41.094.623.251.69.0631.881.00.0560.940.754
11.364.883.502.00.0632.121.060.631.000.754
1-1/41.705.253.882.50.0632.501.060.691.000.754
1-1/21.956.124.502.88.0632.751.190.751.130.884
22.446.505.003.62.0633.311.310.821.250.758
2-1/22.947.505.884.12.0633.941.500.941.440.888
33.578.256.625.00.0634.621.691.061.630.888
3-1/24.079.007.255.50.0635.251.751.131.690.888
44.5710.007.886.19.0635.751.881.191.820.888
55.6611.009.257.31.0637.002.001.321.940.888
66.7212.5010.628.50.0638.122.061.382.000.8812
88.7215.0013.0010.62.06310.252.441.562.381.0012
1010.8817.5015.2512.75.06312.622.621.822.561.1216
1212.8820.5017.7515.00.06314.752.881.942.821.2516
1414.1423.0020.2516.25.06316.753.002.062.941.2520
1616.1625.5022.5018.50.06319.003.252.193.191.3820
1818.1828.0024.7521.00.06321.003.502.323.441.3824
2020.2030.5027.0023.00.06323.123.752.443.691.3824
2222.2233.0029.2525.25.06325.254.002.573.941.6324
2424.2536.0032.0027.25.06327.624.192.694.131.6224

Class 300 Weld Neck Flange Dimensions


Class 300 Weld Neck Flange Dimensions
Normal Size Of Steel Pipe in Inch Normal Size Of Steel Pipe In Millimeter O.D. Wall Thickness Outer Daimeter Of Hub Outer Daimeter Of WNRF ASME B16.5 WNRF Length Raised Face Diameter Height Of Raised Face PCD Face Of WNRF
(A) (B) (C) (D) (E) (G) (H) (I) (J)
1/2 15 95 12.7 38 21.3 51 34.9 2 66.7 1.6
1 25 125 15.9 54 33.4 60 50.8 2 88.9 1.6
1 1/4 32 135 17.5 64 42.2 64 63.5 2 98.4 1.6
1 1/2 40 155 19.1 70 48.3 67 73 2 114.3 1.6
2 50 165 20.7 84 60.3 68 92.1 2 127 1.6
3 80 210 27 117 88.9 78 127 2 168.3 1.6
3 1/2 90 230 28.6 133 101.6 79 139.7 2 184.2 1.6
4 100 255 30.2 146 114.3 84 157.2 2 200 1.6
5 125 280 33.4 178 141.3 97 185.7 2 235 1.6
6 150 320 35 206 168.3 97 215.9 2 269.9 1.6
8 200 380 39.7 260 219.1 110 269.9 2 330.2 1.6
10 250 445 46.1 321 273 116 323.8 2 387.4 1.6
12 300 520 49.3 375 323.8 129 381 2 450.8 1.6
14 350 585 52.4 425 355.6 141 412.8 2 514.4 1.6
16 400 650 55.6 483 406.4 144 469.9 2 571.5 1.6
18 450 710 58.8 533 457 157 533.4 2 628.6 1.6
20 500 775 62 587 508 160 584.2 2 685.8 1.6
24 600 915 68.3 702 610 167 692.2 2 812.8 1.6

Class 300 Blind Flange Dimensions


Class 300 Blind Flange Dimensions
(Normal Size Of Steel Pipe) In InchOuter Daimeter Of
(A)
WT (B)
RF Daimeter Of
(C)
(D)
(B.C.D.)
# BLRF Flange Bolts
Holes
Daimeter Of BLRF Bolt Holes
Weight in Kg (Kilogram)
1/23-3/49/161-3/82-5/845/82
3/44-5/85/81-11/163-1/443/43
14-7/811/1623-1/243/44
1-1/45-1/43/42-1/23-7/843/46
1-1/26-1/813/162-7/84-1/247/87
26-1/27/83-5/8583/48
2-1/27-1/214-1/85-7/887/812
38-1/41-1/856-5/887/816
3-1/291-3/165-1/27-1/487/821
4101-1/46-3/167-7/887/828
5111-3/87-5/169-1/487/837
612-1/21-7/168-1/210-5/8127/848
8151-5/810-5/81312179
1017-1/21-7/812-3/415-1/4161-1/8122
1220-1/221517-3/4161-1/4183
14232-1/816-1/420-1/4201-1/4241
1625-1/22-1/418-1/222-1/2201-3/8315
18282-3/82124-3/4241-3/8414
2030-1/22-1/22327241-3/8515
24362-3/427-1/432241-5/8800

Socket Weld Flange Dimensions Class 300


ASME B16.5 Class 150 Socket Weld Flange Dimensions
NPS Of SWRFOuter DiameterDiameter of RFMinimum ThicknessHub DiameterThrough Hub LengthBore DiameterSocket DepthBolt Circle DiameterBolt Holes DiameterFlanges Bolt NumberWeight In Kilogram-
(NPS)(O)(R)(tf)(X)(Y)(B1)(B2)(D)(W)(I)(n)(-)
1/29534.912.7382122.215.81066.715.940.67
3/411542.914.3482427.720.91182.619.141.11
112550.815.9542534.526.61388.919.141.43
1 1/413563.517.5642543.235.11498.419.141.79
1 1/215573.019.1702949.540.916114.322.242.57
216592.120.7843261.952.517127.019.183.01
2 1/2190104.823.91003774.662.719149.222.284.55
3210127.027.01174190.777.921168.322.286.18

Orifice Flange Dimensions Class 300


Orifice Flange Dimensions Class 300
Orifice Size in InchchOrifice Size in mmOuter Diameter (O.D.)Orifice Flange ThicknessHub Outer DiameterWeld Neck Outer DiameterLength Of Welding NeckRF DiameterHeight Of RFPCDOrifice Hole diameterNumber of BoltsBolt Size In UNCStud Length Of RFSize Of HoleStud Size In ISOWeight in Kilogram
ABCDEFGHI--------
12512536.65433.48150.8288.96.445/81253/4M164.5
1 1/24015536.67048.384732114.36.443/41357/8M206.5
25016536.68460.38492.121276.485/81253/4M167
2 1/26519036.61007387104.82149.26.483/41357/8M207.5
38021036.611788.9871272168.39.583/41357/8M209.4
410025536.6146114.390157.2220012.783/41357/8M2013.2
615032036.6206168.398215.92269.912.7123/41357/8M2014.6
820038039.7260219.1110269.92330.212.7127/81451M2430
1025044546.1321273116323.82387.312.71611651 1/8M2741
1230052049.3375323.81293812450.812.7161 1/81801 1/4M3062
1435058552.4425355.6141412.82514.412.7201 1/81851 1/4M3084
1640065055.6483406.4144469.92571.512.7201 1/41951 3/8M33111
1845071058.8533457157533.42628.612.7241 1/42051 3/8M33138
2050077562587508160584.22685.812.7241 1/42151 3/8M33171
2460091568.3702610167692.22812.812.7241 1/22401 5/8M39247

Supplier of ANSI B16.5 Class 300 Lap Joint Flange and ASME 300 Long Weld Neck Flange with stamping, marking & MTR


300# Lap Joint Flange Dimensions


300# Lap Joint Flange Dimensions
Normal Size Of Steel Pipe In InchNormal Size Of Steel Pipe in MMO.D.(WT)Lapped ThicknessInner DaimeterPCDLapped ThicknessLap Joint RadiusLJ Bolts NumberBolts Size In UNCLength Of Machine BoltLength Of (RF) StudLap Joint Flange Bolts Hole SizeISO Stud SizeWeight In Kilogram (KG)
  ABCDEG        
1/21595382222.966.714.3341/255655/8M141.2
3/420115482528.282.615.9345/865753/4M161.4
125125542734.988.917.5345/865753/4M161.4
1 1/432135642743.798.419.1545/870853/4M161.8
1 1/240155703050114.320.7643/475907/8M202.7
250165843362.512722.3885/875903/4M163.2
2 1/2651901003875.4149.225.4883/4851007/8M204.6
3802101174391.4168.328.61083/4901107/8M205.9
3 1/29023013344104.1184.230.21183/4951107/8M207.7
410025514648116.820031.81183/4951157/8M2010
512528017851144.4235351183/41101207/8M2012.7
615032020652171.4269.936.613123/41101207/8M2017.7
820038026062222.2330.241.313127/81201401M2426
1025044532195277.4387.447.7131611401601 1/8M2736
12300520375102328.2450.850.813161 1/81451701 1/4M3052
14350585425111360.2514.45413201 1/81601801 1/4M3075
16400650483121411.2571.557.213201 1/41651901 3/8M3386
18450710533130462.3628.660.413241 1/41701951 3/8M33113
20500775587140514.4685.863.513241 1/41852051 3/8M33143
24600915702153616812.869.913241 1/22052301 5/8M39216

ASME Cl300 Spectacle Blind Flange Dimensions


ASME Cl300 Spectacle Blind Flange Dimensions
Normal Pipe SizeOutside Diameter Of
(A)
Inside Diameter Of
(B)
Center Line
(C)
Wall Thikness
t
Width Of Web
(W)
1/25116656.438
3/46421806.438
17027906.438
1.1/479421006.438
1.1/292481156.438
2108611259.751
2.1/2127731509.751
3146891709.764
3.1/216210218512.764
417811420012.764
521314123515.776
624816827015.776
830521933022.476
1035927338525.4102
1241932445028.4102
1448335651531.8108
1653640657038.1108
1859445763041.1114
2065150868544.5121
2477261081050.8140

ANSI 300 Threaded Flange Dimensions


ANSI 300 Threaded Flange Dimensions
Size Of Bore(D) DiameterWT Of(E)(F) Diameter(B) Diameter(A) DiameterHeightNbrBolts Holes (C)Diameter
1/29512.735.053823.621415.8766.7
3/411514.342.924829.024419.0582.6
112515.950.805435.825419.0588.9
1 1/413517.563.506444.425419.0598.4
1 1/215519.173.157050.329822.22114.3
216520.791.948463.532819.05127.0
2 1/219023.9104.6510076.237822.22149.2
321027.0127.0011792.241822.22168.3
3 1/223028.6139.70133104.943822.22184.2
425530.2157.22146117.646822.22200.0
528033.4185.67178144.449822.22235.0
632035.0215.90206171.4511222.22269.9
838039.7269.75260222.2601225.40330.2
1044546.1323.85321276.2651628.57387.4
1252049.3381.00375328.6711631.75450.8
1458552.4412.75425360.4752031.75514.4
1665055.6469.90483411.2812034.92571.5
1871058.8533.40533462.0872434.92628.6
2077562.0584.20587512.8942434.92685.8
2491568.3692.15702614.41052441.27812.8

ASME B16.5 Class 300 Bleed Or Drip Ring Dimensions


ASME B16.5 Class 300 Bleed Or Drip Ring Dimensions
Normal Pipe SizeInner Diameter
163.5
1.1/282.6
2101.6
2.1/2120.7
3133.4
4171.5
6219.1
8276.2
10336.6
12406.4

ASME 300 Spades And Ring Spacers Dimensions


ASME 300 Spades And Ring Spacers Dimensions

Normal Pipe SizeOutside
Diameter Of
(A)
Inside
Diameter Of
(B)
Center
End
(C)
Wall Thick
ness Of
(T)
Handle
Width
W
1/251161296.432
3/464211366.432
170271396.432
1.1/479421506.432
1.1/292481506.432
2108611589.732
2.1/2127731779.732
3146891779.732
3.1/216210220512.738
417811420512.738
521314124015.738
624816824015.738
830521928122.438
1035927333325.444
1241932436328.444
1448335639531.844
1653640642238.144
1859445745041.151
2065150848044.551
2477261054050.851

300 ANSI Flat Face Flange Dimensions


300 ANSI Flat Face Flange Dimensions

NPSPipe DiameterInner DiameterNumber of holesDiameter Of FlangeThickness of FlangeDiameter of (B.C) Bolt CircleDiameter of (B.H) Bolt HolesWeight In KG
(DN)(ISO)(DIN)(D5)(BN)(D)(b)(K)(d2)(KG/PCS)
101414.54901660140.7
17.217.74901660140.69
1520214951665140.77
21.3224951665140.77
20252641051875141.06
26.927.641051875141.05
25303141151885141.27
33.734.441151885141.25
323839414018100181.86
42.443.1414018100181.83
4044.545.5415018110182.12
48.349415018110182.09
505758.1416520125182.78
60.361.1416520125182.74
6576.177.1818522145183.48
8088.990.3820024160184.33
100108109.6823524190225.82
114.3115.9823524190225.61
125133134.8827026220267.91
139.7141.6827026220267.6
150159161.18300282502610.12
168.3170.5830028250269.58
175193.7196.112350322953014.45
200219.1221.812375343203016.9
250267270.212450383853327.28
273276.212450383853326.51
300323.9327.616515424503336.38
350355.6359.716580465103652.83
368372.216580465103650.24
400406.441116660505853974.71
419423.716660505853971.44
500508513.620755526704286.87
600610616.5208905479548121.84
700711716249955890048150.93
80081381824114064103056219.08
90091492028125070114056271.16
10001016102228136078125056344.95

Class 300 RTJ Flange Dimensions


Class 300 RTJ Flange Dimensions
RTJ Flange Size in InchRTJ Flanges Size in MMOuter DiameterWall Thickness Of Ring Type JointOuter Daimeter Of HubOuter Daimeter Of Weld NeckLengths Of Welding NeckDiameter Of RF (Raised Face) Height Of RF (Raised Face)PCDDiameter Pitch Of RTJ FlangesDepth Of RTJ Flanges Ring Type Joint Flange Width
(A)(B)(C)(D)(E)(F)(G)(H)(I)(J)(K)(L)-
1/2159512.73821.351515.5466.734.145.547.14
3/42011514.34826.75663.56.3582.642.886.358.74
12512515.95433.460706.3588.950.86.358.74
1 1/43213517.56442.26479.56.3598.460.336.358.74
1 1/24015519.17048.36790.56.35114.368.276.358.74
25016520.78460.3681087.9212782.557.9211.91
2 1/26519023.910073751277.92149.2101.67.9211.91
3802102711788.9781467.92168.3123.837.9211.91
3 1/29023028.6133101.6791597.92184.2131.787.9211.91
410025530.2146114.3841757.92200149.237.9211.91
512528033.4178141.3972107.92235180.987.9211.91
615032035206168.3972417.92269.9211.127.9211.91
820038039.7260219.11103027.92330.2269.887.9211.91
1025044546.13212731163567.92387.4323.857.9211.91
1230052049.3375323.81294137.92450.83817.9211.91
1435058552.4425355.61414577.92514.4419.17.9211.91
1640065055.6483406.41445087.92571.5469.97.9211.91
1845071058.85334571575757.92628.6533.47.9211.91
20500775625875081606359.53685.8584.29.5313.49
2460091568.370261016774911.13812.8692.1511.1316.66

Class 300 Flange Thickness In Mm


NPSOuter Diameter
(O.D)
Minimum Wall Thickness
(T)
(RF) Diameter
(R)
Number of Bolt HolesHoles DiameterBC
(Bolt Circle)
SO Bore Inner Diameter
(SB)
WN Bore Inner Diameter
(WB)
Diameter Hub Base
(HB)
Diameter of Hub Top
(HT)
SO Length
(SL)
WN Length
(WL)
123.500.381.3840.622.380.880.621.190.840.561.81
343.880.441.6940.622.751.090.821.501.050.562.00
14.250.502.0040.623.121.361.051.941.320.622.12
1144.620.562.5040.623.501.701.382.311.660.752.19
1125.000.622.8840.623.881.951.612.561.900.812.38
26.000.693.6240.754.752.442.073.062.380.942.44
2127.000.814.1240.755.502.942.473.562.881.062.69
37.500.885.0040.756.003.573.074.253.501.122.69
3128.500.885.5080.757.004.073.554.814.001.192.75
49.000.886.1980.757.504.574.035.314.501.252.94
510.000.887.3180.888.505.665.056.445.561.383.44
611.000.948.5080.889.506.726.077.566.631.503.44
813.501.0610.6280.8811.758.727.989.698.631.693.94
1016.001.1212.75121.0014.2510.8810.0212.0010.751.883.94
1219.001.1915.00121.0017.0012.8812.0014.3812.752.124.44
1421.001.3116.25121.1218.7514.1413.2515.7514.002.194.94
1623.501.3818.50161.1221.2516.1615.2518.0016.002.444.94
1825.001.5021.00161.2522.7518.1817.2519.8818.002.625.44
2027.501.6223.00201.2525.0020.2019.2522.0020.002.815.62
2229.501.7525.25201.3827.2522.2221.2524.2522.003.075.82
2432.001.8127.25201.3829.5024.2523.2526.1224.003.195.94

10 Inch 300 Lb Flange Bolt Size


NPS
Class 300 Flanges
Diameter
of Bolt
Circle (B.C.)
Diameter
of
Bolts
Number
of
Bolts
Bolts Length
Stud Bolts For
Raised Face (RF)
Machine Bolts For
Raised Face (RF)
1/2
2-5/8
1/2
4
2-1/2
2
3/4
3-1/4
5/8
4
2-3/4
2-1/2
1
3-1/2
5/8
4
3
2-1/2
1-1/4
3-7/8
5/8
4
3
2-3/4
1-1/2
3-1/2
3/4
4
3-1/2
3
2
5
5/8
8
3-1/4
3
2-1/2
5-7/8
3/4
8
3-3/4
3-1/4
3
6-5/8
3/4
8
4
3-1/2
3-1/2
7-1/4
3/4
8
4-1/4
3-3/4
4
7-7/8
3/4
8
4-1/4
3-3/4
5
9-1/4
3/4
8
4-1/2
4
6
10-5/8
3/4
12
4-3/4
4-1/4
8
13
7/8
12
5-1/4
4-3/4
10
15-1/4
1
16
6
5-1/4
12
17-3/4
1-1/8
16
6-1/2
5-3/4
14
20-1/4
1-1/8
20
6-3/4
6
16
22-1/2
1-1/4
20
7-1/4
6-1/2
18
24-3/4
1-1/4
24
7-1/2
6-3/4
20
27
1-1/4
24
8
7
22
29-1/4
1-1/2
24
8-3/4
7-1/2
24
32
1-1/2
24
9
7-3/4
26
34-1/2
1-5/8
28
10
8-3/4
30
39-1/4
1-3/4
28
11-1/4
10
34
43-1/2
1-7/8
28
12-1/4
10-3/4
36
46
2
32
12-3/4
11-1/4
42
52-3/4
2
36
13-3/4
13

300# Flange Bolt Holes Number


NPS In
(inches)
Class 300 Flanges
Dia. of
Flange
(inches)
Number
of
Bolts
Dia. of
Bolts In
(inches)
Dia. of
Bolt Holes
(inches)
Bolt
Circle (B.C.)
In (inches)
1/43-3/841/20.622-1/4
1/23-3/441/20.622-5/8
3/44-5/845/80.753-1/4
14-7/845/80.753-1/2
1-1/45-1/445/80.753-7/8
1-1/26-1/843/40.884-1/2
26-1/285/80.755
2-1/27-1/283/40.885-7/8
38-1/483/40.886-5/8
3-1/2983/40.887-1/4
41083/40.887-7/8
51183/40.889-1/4
612-1/2123/40.8810-5/8
815127/8113
1017-1/21611.1215-1/4
1220-1/2161-1/81.2517-3/4
1423201-1/81.2520-1/4
1625-1/2201-1/41.3822-1/2
1828241-1/41.3824-3/4
2030-1/2241-1/41.3827
2436241-1/21.6232

ASME Class 300 Blind Flange Manufacturing Process


ASME Class 300 Blind Flange Manufacturing Process

Raw Material

  • Raw Materia
  • Materia Dimension And Visual
  • Materia Quantity
ASME Class 300 Blind Flange Manufacturing Process

Inspection

  • Chemical And Mechanical Analysis
  • Analysis Of Preservation Certificate
ASME Class 300 Blind Flange Manufacturing Process

Cutting

  • Cut Surface
  • Marking
  • Weight Measuring
ASME Class 300 Blind Flange Manufacturing Process

Forging Flange

  • Grade Of Material
  • Control Flange Temperature
ASME Class 300 Blind Flange Manufacturing Process

Heat Treatment

  • Flange Solution Treatment
  • Flanges Mechanical Test
  • Normalizing
ASME Class 300 Blind Flange Manufacturing Process

Forging Rolling Of Flange

  • Check Dimension
  • Check Marking
  • Check Weight
ASME Class 300 Blind Flange Manufacturing Process

Final Inspection Of Pipe Flange

  • Test Of Visual
  • Test Of Nondestructive
ASME Class 300 Blind Flange Manufacturing Process

Rust Prevention

  • View Preserve
  • Marking
  • Heat Number
ASME Class 300 Blind Flange Manufacturing Process

Packaging

  • Specification Of Packing
  • Inspection Of Packing
  • Delivery Time And Day

Facing Types Of Class 300 LB Flanges

Diagram Marking symbol Face Types
Flat Face RF Flat Face
Raised Face RF Raised Face
Lap Joint Face LJRF Lap Joint Face
Ring Type Joint RTJ Ring Type Joint
Male Female Face M&F Male Female Face
Tongue Groove Face T&G Tongue Groove Face

Class 300 Flange Weight


Normal Size Of Steel PipeDimensions In MillimeterASME B16.5 Flanges Weight In Kilogram
Normal Size Of Steel Pipe In InchesSize In MillimeterClass 300 Flanges
Outer Daimeter (O.D.) In
(MM)
300# Flanges
Wall Thickness Of
(D)
In M)
(Class 300 Slip On Flanges)
(Class 300 Socket Weld Flanges)
(Class 300 Weld Neck Flanges)(Class 150 Blind Flanges)
1/21588.911.20.40.50.4
3/42098.612.70.60.70.6
12510814.20.810.9
1 1/432117.315.711.31.2
1 1/24012717.51.31.71.5
250152.419.12.12.62.4
2 1/265177.822.43.34.13.9
380190.523.93.94.94.9
3 1/290215.923.94.86.16.2
4100228.623.95.36.87.0
512525423.96.18.68.6
6150279.425.47.510.611.3
8200342.928.412.117.619.6
10250406.430.216.52428.6
12300482.631.826.236.543.2
14350533.435.134.648.458.1
16400596.936.644.860.676.1
1845063539.648.968.393.7
20500698.542.961.984.5122.0

Manufacturer of ASME B16.5 Class 300 Threaded Flange and ANSI 300 LBS Spectacle Blind Flange in RJ, Groove, Raised, RTJ, Male, Flat, Female, Tongue face, check ansi 300 flange dimensions in mm and pressure rating

ANSI Class 300 Flange Pressure Rating

Temperature (in F°)
Class 300 Flange
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

Manufacturer of DIN 24154/ DIN 86044 ASME 300 Flat Flanges and ANSI 300 LBS Puddle Flanges cutted from sheet, check flange dimensions 300

Class 300 Flange Pipe Schedule


Normal Size Of Steel PipeOuter Diameter (O.D.)10 Schedule20 Schedule30 ScheduleSTD Wall40 Schedule60 ScheduleEXT Hvy80 Schedule100 Schedule120 Schedule140 Schedule160 ScheduleXX Hvy
½0.840.083......0.1090.109...0.1470.147.........0.1880.294
¾1.050.083......0.1130.113...0.1540.154.........0.2190.308
11.3150.109......0.1330.133...0.1790.179.........0.250.358
1 ¼1.660.109......0.140.14...0.1910.191.........0.250.382
1 ½1.90.109......0.1450.145...0.20.2.........0.2810.4
22.3750.109......0.1540.154...0.2180.218.........0.3440.436
2 ½2.8750.12......0.2030.203...0.2760.276.........0.3750.552
33.50.12--0.2160.216-0.30.3---0.4380.6
3 ½40.12--0.2260.226-0.3180.318----0.636
44.50.12--0.2370.237-0.3370.337-0.438-0.5310.674
55.5630.134--0.2580.258-0.3750.375-0.5-0.6250.75
66.6250.134--0.280.28-0.4320.432-0.562-0.7190.864
88.6250.1480.250.2770.3220.3220.4060.50.50.5940.7190.8120.9060.875
1010.750.1650.250.3070.3650.3650.50.50.5940.7190.84411.1251
1212.750.180.250.330.3750.4060.5620.50.6880.84411.1251.3121
14140.250.3120.3750.3750.4380.5940.50.750.9381.0941.251.406-
16160.250.3120.3750.3750.50.6560.50.8441.0311.2191.4381.594-
18180.250.3120.4380.3750.5620.750.50.9381.1561.3751.5621.781-
20200.250.3750.50.3750.5940.8120.51.0311.2811.51.751.969-
22220.25--0.375--0.5------
24240.250.3750.5620.3750.6880.9690.51.2191.5311.8122.0622.344-
2626---0.375--0.5------
30300.3120.50.6250.375--0.5------

ASME B16.5 Class 300 Flange Size


Normal Pipe Size

DN

1/2

15

3/4

20

1

25

1 1/4

32

 1 1/2

40

2

50

2 1/2

65

3

80

4

100


Class 300 Flange Pressure Rating Stainless Steel

Temperature (°C) 300
-29 - 38 51.7
50 51.7
100 51.5
150 50.2
200 48.6
250 46.3
300 42.9
325 41.4
350 40.0
375 37.8
400 34.7
425 28.8
450 23.0
475 17.1
500 11.6
538 5.9