ASTM A182 Stainless Steel Flanges Manufacturer in India

Buy Class 300 Stainless Steel Flanges at Factory Price, Supplier of ANSI B16.5 Flange

Stainless Steel Flanges are products used in piping systems to connect pipes together. The flanges are more advantageous than fittings because they often have a projection perpendicular to the pipe’s length. This part of the flange helps for additional grip to the attachment. Roopam Steel is a manufacturer and supplier of stainless steel flanges in all shapes, sizes and material grades. The Stainless Steel Blind Flanges differ from all other flanges in that they actually do not connect more pipes to continue the piping, they terminate a piping. A blind flange is applied when the flow has to stop completely. The Stainless Steel Plate Flange just looks like a ring that can hold the pipe inside. When two of these plate flanges are fitted at the ends of two different pipes, it becomes easy to weld or bolt the pipes together.


                                            ASTM A182 Stainless Steel Flanges

ASTM A182 Stainless Steel Flanges

Class 300 Stainless Steel Flanges

Class 300 Stainless Steel Flanges

ANSI B16.5 Flange

ANSI B16.5 Flange

Best Quality Stainless Steel Blind Flanges Stockholder, Ready to dispatch stock of Stainless Steel Plate Flange

The Stainless Steel Weld Neck Flange has a welded neck on it to provide extra strength; the SS Slip on Flange allows the pipes to slip on through it so that the pipe can be adjusted for the correct location of joint. The flanges could be made up of different methods as well. The SS Forged Flanges are common as they possess more strength from the forging from one piece of metal. The SS Threaded Flanges have threads at the ends and there are different pressure classes to the flanges such as the Class 300 Stainless Steel Flanges and the Class 150 SS Pipe Flange. Please contact us for more details. We have 20 years of experince in stainless steel flanges manufacturer in india. Buy gaskets for stainless steel flanges at best factory price.

Stainless Steel Flanges

Stainless Steel Flanges

 

Specification Format of Stainless Steel Flanges

Size Chart 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Standards API7S-15, API7S-43, API605, ANSI/ASME B16.5, B16.47 Series A & B, B16.48, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, EN1092
Pressure Rating ANSI 600 LBS, 900 LBS, 150 LBS, 2500 LBS, 300 LBS, 1500 LBS
Pressure Calculation in DIN 16Bar 6Bar 25Bar 40Bar 10Bar / PN10 PN16 PN6 PN25 PN64 PN40
JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
UNI 6Bar 10Bar 16Bar 25Bar 40Bar
EN 6Bar 10Bar 16Bar 25Bar 40Bar
Coating Anti-rust Paint, Zinc Plated,Oil Black Paint, Cold and Hot Dip Galvanized, Yellow Transparent
Most common types Forged / Threaded / Screwed / Plate
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Production technique
  • Forged, Heat treated and machined
Connect Type/ Flange Face Type Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Raised Face (RF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove
Special design

As per your drawing

AS, ANSI, BS, DIN and JIS
15 NB (1/2") to 200 NB (8")
Equal and Reducing Configurations

Test Hydrostatic testing machine, X-ray detector, Direct-reading Spectrograph, UI trasonic flaw detector, Magnetic particle detector
Equipment Bending machine, Pushing Machine,Press machine, electric bevelling machine, Sand-blasting machine etc
Origin Indian / West Europe / Japan / USA / Korean
Manufacturer of

ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange

  • B.S: BS4504 , BS3293, BS1560, BS10
  • German (DIN)
  • AS 2129: Table D; Table E; Table H
  • ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
  • ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48
  • American standard (ANSI)
  • British standard (BS)
  • ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638
  • The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
Uses & application
  • Nuclear power (mostly seamless).
  • Bitumen upgraders.
  • Petrochemicals and acids.
  • Heavy oil refineries.
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175

Available Sizes of Ferritic Stainless Steel Flange

  • Super Austenitic Stainless Steel Flange : 1/2" (15 NB) to 48" (1200NB)
  • Chromium Nickel Stainless Steel Blind Flange : 1/2″ NB – 24″ NB
  • Austenitic Stainless Steel Slip on Flange : 1/2″ NB – 12″ NB

Check latest price list of Stainless Steel Weld Neck Flange, Get in touch for assistance before buying SS Slipon Flange

Ready Stock of SS Flanges

Ferritic Stainless Steel Flange Stainless Steel Blind Flange
SS Slip on Flange Austenitic Stainless Steel Threaded Flange
Super Austenitic Stainless Steel Reducing Flange Chromium Nickel Stainless Steel Socket Weld Flange
Super Ferritic Stainless Steel Weld Neck Flanges Martensitic Stainless Steel Lap Joint Flanges
Chromium Nickel Stainless Steel Long Weld Neck Flanges SS Spectacle Blind Flanges
Super Austenitic Stainless Steel Spades & Ring Spacers Stainless Steel Nipoflange
Austenitic Stainless Steel 5D Weldoflange Super Ferritic Stainless Steel Flange Outlet
Ferritic Stainless Steel Forged Flanges Chromium Nickel Stainless Steel Plate Flange
Austenitic Stainless Steel Ring Type Joint Flanges Super Austenitic Stainless Steel Raised Face Flanges
Martensitic Stainless Steel Tongue and Groove Flanges SS Male and Female Flange
Super Ferritic Stainless Steel Reducing Flanges Stainless Steel ASME B16.5 Flanges
Ferritic Stainless Steel Flanges Chromium Nickel Stainless Steel BS 10 Flanges
Super Austenitic Stainless Steel BS 4504 Flanges Austenitic Stainless Steel EN 1092-1 Flanges
Super Ferritic Stainless Steel SORF Flange SS BLRF Flange
Stainless Steel WNRF Flange Ferritic Stainless Steel Series a Lap Joint Ring Flange
Chromium Nickel Stainless Steel PN16 blind flange Super Austenitic Stainless Steel Forged Socket Weld Pipe Flange
SS Class 300 slip on flange Super Ferritic Stainless Steel Slip On Weld Flange
Austenitic Stainless Steel Forged steel slip on flanges Stainless Steel Race face slip on flange
Ferritic Stainless Steel SWRF Flange Martensitic Stainless Steel Forged blind flange
SS groove weld neck flange Chromium Nickel Stainless Steel Socket Weld Hub Flange
Super Austenitic Stainless Steel threaded lap joint flange Stainless Steel Slip On Integral flange
Martensitic Stainless Steel Forged integral puddle flange Austenitic Stainless Steel table e long weld neck
SS Class 150 LBS Flange Martensitic Stainless Steel PN10 Forged Flanges

Most Selling types of Austenitic Stainless Steel Pipe Flange

Stainless Steel Slip-On Flange, Slip On, 4
Stainless Steel Socket Weld Flanges
Stainless Steel Blind Flanges
Stainless Steel Forged Flanges
1/2 in. Slip-On 150# Stainless Steel Raised Face Flange
Stainless Steel Pipe Flanges
Stainless Steel Slip On Flanges
ASME B16.5 Stainless Steel Flanges
BS4504 Ss Plate Flange
ANSI 150 Stainless Steel Flanges
1-1/2 in. Weldneck 150# Schedule 10 Stainless Steel Global Raised Face Flange
8 in. Weldneck 150# Schedule 10 Stainless Steel Raised Face Flange
1/2 in. Threaded Lap Joint 150# Stainless Steel Raised Face Flange
Stainless Steel Weld Neck Flanges
Class 300 Stainless Steel Flanges
Stainless Steel Screwed Flanges
ASTM A182 Flanges
Forged Stainless Steel Slip-On Flange, Slip On, 1-1/2
En 1092-1 Stainless Steel Threaded Flange
Stainless Steel Plate Flanges
PN16 Stainless Steel Flanges
1-1/2 in. Slip-On 150# Stainless Steel Raised Face Flange
1/2 in. Socket Weld 150# Stainless Steel Standard Raised Face Flange
Class 600 Stainless Steel Flanges

Stainless Steel Forged Flanges Price List

Price list of Stainless Steel Flange ASTM A182 Flanges Price in INR ASTM A182 Flanges Price in USD ASTM A182 Flanges Price in UAE Dirham
FLANGES STAINLESS STEEL A 182 GR F304/304L FLG WN 150 RF 323 $4.26 UAE Dirham 15.64
FLANGES STAINLESS STEEL SA 182 F317L ANSI B16.5 DN100,150# SORF 496 $6.62 UAE Dirham 24.30
SS 304 ROUND BODY SMALL FLANGE (RIVET NUTS) SIZE M3 2,304 $30.73 UAE Dirham 112.88
FLANGES STAINLESS STEEL : SW RF, 300#, SS 40S BORE, SA/A182GR.F304/304L 70 $0.93 UAE Dirham 3.43
FLANGES STAINLESS STEEL : WN RF, 150#, SS 10S BORE, SA/A182GR.F304/304L 419 $5.59 UAE Dirham 20.53
View Availability of ASME B16.5 Pipe Flange, Suppliers and Stockists of SS Forged Flanges. Distributing globally SS Threaded Flanges at best prices.

Chemical Compatibility of Martensitic Stainless Steel Flange

Grade C Mn Si P S Cr Mo Ni N Ti Fe
304 min. 18.0 8.0
max. 0.08 2.0 0.75 0.045 0.030 20.0 10.5 0.10
304L min. 18.0 8.0
max. 0.030 2.0 0.75 0.045 0.030 20.0 12.0 0.10
304H min. 0.04 18.0 8.0
max. 0.010 2.0 0.75 0.045 0.030 20.0 10.5
SS 310 0.015 max 2 max 0.015 max 0.020 max 0.015 max 24.00 26.00 0.10 max 19.00 21.00 54.7 min
SS 310S 0.08 max 2 max 1.00 max 0.045 max 0.030 max 24.00 26.00 0.75 max 19.00 21.00 53.095 min
SS 310H 0.04 0.10 2 max 1.00 max 0.045 max 0.030 max 24.00 26.00 19.00 21.00 53.885 min
316 min. 16.0 2.03.0 10.0  
max. 0.035 2.0 0.75 0.045 0.030 18.0 14.0  
316L min. 16.0 2.03.0 10.0    
max. 0.035 2.0 0.75 0.045 0.030 18.0 14.0  
316TI 0.08 max 10.00 14.00 2.0 max 0.045 max 0.030 max 16.00 18.00 0.75 max 2.00 3.00
317 0.08 max 2 max 1 max 0.045 max 0.030 max 18.00 20.00 3.00 4.00 57.845 min
SS 317L 0.035 max 2.0 max 1.0 max 0.045 max 0.030 max 18.00 20.00 3.00 4.00 11.00 15.00 57.89 min
SS 321 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 19.00 9.00 12.00 0.10 max 5(C+N) 0.70 max
SS 321H 0.04 0.10 2.0 max 1.0 max 0.045 max 0.030 max 17.00 19.00 9.00 12.00 0.10 max 4(C+N) 0.70 max
347/ 347H 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 20.00 9.0013.00
410 min. 11.5
max. 0.15 1.0 1.00 0.040 0.030 13.5 0.75
446 min. 23.0 0.10
max. 0.2 1.5 0.75 0.040 0.030 30.0 0.50 0.25
904L min. 19.0 4.00 23.00 0.10
max. 0.20 2.00 1.00 0.045 0.035 23.0 5.00 28.00 0.25

Mechanical Characteristics of ASTM A182 SS Blind Flange

Grade Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
304/ 304L 8.0 g/cm3 1400 °C (2550 °F) Psi 75000 , MPa 515 Psi 30000 , MPa 205 35 %
304H 8.0 g/cm3 1400 °C (2550 °F) Psi 75000 , MPa 515 Psi 30000 , MPa 205 40 %
310 / 310S / 310H 7.9 g/cm3 1402 °C (2555 °F) Psi 75000 , MPa 515 Psi 30000 , MPa 205 40 %
306/ 316H 8.0 g/cm3 1400 °C (2550 °F) Psi 75000 , MPa 515 Psi 30000 , MPa 205 35 %
316L 8.0 g/cm3 1399 °C (2550 °F) Psi 75000 , MPa 515 Psi 30000 , MPa 205 35 %
317 7.9 g/cm3 1400 °C (2550 °F) Psi 75000 , MPa 515 Psi 30000 , MPa 205 35 %
321 8.0 g/cm3 1457 °C (2650 °F) Psi 75000 , MPa 515 Psi 30000 , MPa 205 35 %
347 8.0 g/cm3 1454 °C (2650 °F) Psi 75000 , MPa 515 Psi 30000 , MPa 205 35 %
904L 7.95 g/cm3 1350 °C (2460 °F) Psi 71000 , MPa 490 Psi 32000 , MPa 220 35 %
Class 300 Stainless Steel Flanges are available in different sizes to fulfill any requirement, Polished, Annealed Class 150 SS Pipe Flange Dealers, Specialise in distributing ANSI B16.5 Flange

Material Equivalent of Chromium Stainless Steel Flange

STANDARD WERKSTOFF NR. UNS JIS BS GOST AFNOR EN
SS 304 1.4301 S30400 SUS 304 304S31 08Х18Н10 Z7CN18‐09 X5CrNi18-10
SS 304L 1.4306 / 1.4307 S30403 SUS 304L 3304S11 03Х18Н11 Z3CN18‐10 X2CrNi18-9 / X2CrNi19-11
SS 304H 1.4301 S30409
SS 310 1.4841 S31000 SUS 310 310S24 20Ch25N20S2 X15CrNi25-20
SS 310S 1.4845 S31008 SUS 310S 310S16 20Ch23N18 X8CrNi25-21
SS 310H S31009
SS 316 1.4401 / 1.4436 S31600 SUS 316 316S31 / 316S33 Z7CND17‐11‐02 X5CrNiMo17-12-2 / X3CrNiMo17-13-3
SS 316L 1.4404 / 1.4435 S31603 SUS 316L 316S11 / 316S13 03Ch17N14M3 / 03Ch17N14M2 Z3CND17‐11‐02 / Z3CND18‐14‐03 X2CrNiMo17-12-2 / X2CrNiMo18-14-3
SS 316H 1.4401 S31609
SS 316Ti 1.4571 S31635 SUS 316Ti 320S31 08Ch17N13M2T Z6CNDT17‐123 X6CrNiMoTi17-12-2
SS 317 1.4449 S31700 SUS 317
SS 317L 1.4438 S31703 SUS 317L X2CrNiMo18-15-4
SS 321 1.4541 S32100 SUS 321 X6CrNiTi18-10
SS 321H 1.4878 S32109 SUS 321H X12CrNiTi18-9
SS 347 1.4550 S34700 SUS 347 08Ch18N12B X6CrNiNb18-10
SS 347H 1.4961 S34709 SUS 347H X6CrNiNb18-12
SS 904L 1.4539 N08904 SUS 904L 904S13 STS 317J5L Z2 NCDU 25-20 X1NiCrMoCu25-20-5

Material Specification of ANSI 150 Stainless Steel Flanges

China National Standard Flanges European Standard Flanges
Standard Type Standard Type
GB/T 9112-2000 ~ 9123-2000
Pressure: 0.25MPa ~ 10MPa
Size: DN10 ~ DN1200
BLIND
PLATE
LAP JOINT
SLIP ON
THREADED
WELDING NECK
LONG WELDING NECK
EN 1092-1
Pressure: Class PN6 ~ PN400
Size: DN10 ~ DN4000
PLATE
LOOSE PLATE
BLANK
WELDING NECK
HUBBED SLIP ON
HUBBED THREADED
American Standard Flanges German Standard Flanges
Standard Type Standard Type
ASME B16.5
Pressure: Class 150 ~ 2500
Size: 1/2″ ~ 24″
BLIND
BOSS BLIND
LAP JOINT
PLATE
SLIP ON
THREADED
WELDING NECK
LONG WELDING NECK
DIN
Pressure: PN6 ~ PN400
Size: DN10 ~ DN400
DIN 2527 – Blind; PN6 ~ PN100
DIN 2566 – Screwed; PN10 and PN16
DIN 2573 – Flanges for soldering or welding; PN6
DIN 2576 – Flanges for soldering or welding; PN10
DIN 2627 – Welding neck; PN400
DIN 2628 – Welding neck; PN250
DIN 2629 – Welding neck; PN320
DIN 2630 – Welding neck; PN1 and PN2.5
DIN 2631 – Welding neck; PN6
DIN 2632 – Welding neck; PN10
DIN 2633 – Welding neck; PN16
DIN 2634 – Welding neck; PN25
DIN 2635 – Welding neck; PN40
DIN 2636 – Welding neck; PN64
DIN 2637 – Welding neck; PN100
DIN 2638 – Welding neck; PN160
DIN 2641 – Lapped flanges; PN6
DIN 2642 – Lapped flanges; PN10
DIN 2655 – Lapped flanges; Plain collars; PN25
DIN 2656 – Lapped flanges; Plain collars; PN40
ASME B16.47A
Pressure: Class 150 ~ 900
Size: 26″ ~ 60″
BLIND
WELDING NECK
ASME B16.47B
Pressure: Class 75 ~ 900
Size: 26″ ~ 60″
BLIND
WELDING NECK
Australian Standard Flanges British Standard Flanges
Standard Type Standard Type
AS 2129
Table: T/A, T/D, T/E, T/F, T/H, T/J, T/K, T/R, T/S, T/T
Size: DN15 ~ DN3000
BLANK
PLATE
BOSS
WELDING NECK
BS4504
Pressure: PN2.5 ~ PN40
Size: DN10 ~ DN4000
PLATE
LOOSE PLATE
WELDING NECK
BLANK
HUBBED THREADED
HUBBED SLIP ON
INTEGRAL
AS 4087
Pressure: PN16 ~ PN35
Size: DN50 ~ DN1200
BLANK
PLATE
WELDING NECK
BS10
Table: T/A, T/D, T/E, T/F, T/H
Size: 1/2″ ~ 48″
PLATE
BOSS
WELDING NECK
Japanese Standard Flanges African Standard Flanges
Standard Type Standard Type
JIS B2220
Pressure: 5K ~ 30K
Size: DN10 ~ DN1500
SLIP ON PLATE
SLIP ON HUBBED
SOCKET WELDING
WELDING NECK
LAP JOINT
THREADED
INTERGRAL
BLANK
SABS1123
Pressure: 250kPa ~ 6400kPa
Size: DN10 ~ DN3600
BLANK
WELDING NECK
PLATE
LOOSE
INTEGRAL
BOSS
French Standard Flanges Special Requirement
Standard Type Standard Type
NFE 29203
Pressure: PN2.5 ~ PN420
Size: DN10 ~ DN600
PLATE
LOOSE
BLIND
WELDING NECK
SLIP ON
Size: Up to OD: 2560mm PLATE

ASTM A182 Flanges Weight Chart

CLASS Nominal Pipe Size SS Slip On Flange SS Threaded Flange SS Socket Weld Flange SS Lap Joint Flange SS Blind Flange SS Weld Neck Flange
150 lb ½ 1 1 2 1 2 2
¾ 2 2 2 2 2 2
1 2 2 2 2 2 3
3 3 3 3 3 3
3 3 3 3 4 4
2 5 5 5 5 5 6
8 8 8 8 7 10
3 9 9 9 9 9 11.5
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
CLASS Nominal Pipe Size Slip On Threaded Socket Weld Lap Joint Blind Weld Neck
300 lb ½ 2 2 3 2 2 2
¾ 3 3 3 3 3 3
1 3 3 3 3 4 4
4.5 4.5 4 4.5 6 5
6.5 6.5 6 6.5 7 7
2 7 7 7 7 8 9
10 10 10 10 12 12
3 13 14 13 14.5 16 18
17 17 17 17 21 20
4 23.5 24 22 24 28 26.5
5 29 31 28 28 37 36
6 39 39 39 39 50 45
8 58 58 58 58 81 69
10 81 81 81 91 124 100
12 115 115 115 140 185 142
14 165 165 165 190 250 206
16 210 220 190 234 315 250
18 253 280 250 305 414 320
20 315 325 315 375 515 400
22 370 370 370 435 640 465
24 490 490 475 550 800 580
CLASS Nominal Pipe Size Slip On Threaded Socket Weld Lap Joint Blind Weld Neck
400 lb ½ 2 2 2 2 2 3
¾ 3 3 3 3 3 3.5
1 3.5 3.5 3.5 3.5 4 4
4.5 4.5 4.5 4.5 6 4.5
6.5 6.5 6.5 6.5 8 8
2 8 8 8 8 10 10
12 12 12 11 15 14
3 15 15 15 14 20 18
21 21 21 20 29 26
4 26 26 26 25 33 35
5 31 31 31 29 44 43
6 44 44 44 42 61 57
8 67 67 67 64 100 89
10 91 91 91 110 155 125
12 130 130 130 152 226 175
14 191 191 191 210 310 233
16 253 253 253 280 398 295
18 310 310 310 345 502 360
20 378 378 378 420 621 445
22 405 405 405 455 720 505
24 539 539 539 615 936 640
CLASS Nominal Pipe Size Slip On Threaded Socket Weld Lap Joint Blind Weld Neck
600 lb ½ 2 2 2 2 3 3
¾ 3 3 3 3 4 4
1 4 4 4 4 4 4
5 5 5 5 6 6
7 7 7 7 8 8
2 9 9 9 9 10 12
13 13 13 12 15 18
3 16 16 16 15 20 23
21 21 21 20 29 26
4 37 37 37 36 41 42
5 63 63 63 63 68 68
6 80 80 80 78 86 81
8 115 15 15 112 140 120
10 177 177 177 195 231 190
12 215 215 215 240 295 226
14 259 259 259 290 378 347
16 366 366 366 400 527 481
18 476 476 476 469 665 555
20 612 612 612 604 855 690
22 590 590 590 670 1000 720
24 876 876 876 866 1250 977
CLASS Nominal Pipe Size Slip On Threaded Socket Weld Lap Joint Blind Weld Neck
900 lb ½ 6 6 6 6 4 7
¾ 6 6 6 6 6 7
1 7.5 7.5 7.5 7.5 9 8.5
10 10 10 10 10 10
14 14 14 14 14 14
2 22 22 22 21 25 24
31 31 31 25 32 31
3 36 36 36 29 35 36
4 53 53 53 51 54 53
5 83 83 83 81 87 86
6 110 110 110 105 115 110
8 172 172 172 190 200 187
10 245 245 245 277 290 268
12 326 326 326 371 415 372
14 400 400 400 415 520 562
16 459 459 459 488 619 685
18 647 647 647 670 880 924
20 792 792 792 868 1107 1164
24 1480 1480 1480 1659 2099 2107
CLASS Nominal Pipe Size Slip On Threaded Socket Weld Lap Joint Blind Weld Neck
1500 lb ½ 6 6 6 6 4 7
¾ 6 6 6 6 6 7
1 8 8 8 8 9 9
10 10 10 10 10 10
14 14 14 14 14 14
2 25 25 25 25 25 25
36 36 36 35 35 36
3 48 48 48 47 48 48
4 73 73 73 75 73 73
5 132 132 132 140 140 132
6 165 165 165 170 160 165
8 260 260 260 286 302 275
10 436 436 436 485 510 455
12 667 667 667 749 775 690
14 940 940 940 890 975 940
16 1250 1250 1250 1250 1300 1250
18 1625 1625 1625 1475 1750 1625
20 2050 2050 2050 1775 2225 2050
24 2825 2825 2825 2825 3625 3325
CLASS Nominal Pipe Size Slip On Threaded Socket Weld Lap Joint Blind Weld Neck
2500 lb ½ …. 7 …. 7 7 8
¾ …. 9 …. 8 10 9
1 …. 12 …. 12 12 13
…. 18 …. 17 18 20
…. 25 …. 24 25 28
2 …. 38 …. 37 39 42
…. 55 …. 53 56 52
3 …. 83 …. 80 86 94
4 …. 127 …. 122 133 146
5 …. 210 …. 204 223 244
6 …. 323 …. 314 345 378
8 …. 485 …. 471 533 576
10 …. 925 …. 897 1025 1068
12 …. 1300 …. 1262 1464 1608

Standard Specification of ASME B16.5 Stainless Steel Flanges

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)
  • ASME B1.20.1, Pipe Threads, General Purpose
  • ASME B16.1, Cast Iron Flanges and Flanged Fittings Classes 25, 125 and 250
  • ASME B16.5, Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24
  • ASME B16.11, Forged Fittings, Socket Welding and Threaded
  • ASME B16.25, Buttwelding Ends
  • ASME B16.36, Orifice Flanges
  • ASME B16.47, Large Diameter Steel Flanges NPS 26 Through NPS 60
  • ASME B31.1, Power Piping
  • ASME B31.3, Process Piping
  • ASME B46.1, Surface Texture (Surface Roughness, Waviness, and Lay)