
A flange is a ridge, which is on the interior, or the exterior, that provides good strength to connect other parts in a piping system. The ASTM A182 SS Pipe Flange shows high resistance to corrosion and temperatures at elevated temperatures. These flanges can be easily welded or screwed. Another reason to choose flanges is that they allow access for cleaning, inspection, and modification. They have various applications in plumbing, mechanics, electronics, chemical industries, etc. We are one of the top Stainless Steel Flanges Manufacturers in India, our focus is creating high-quality products at the most reasonable prices.
ASME SA182 Slip On Flange has a ring, which has been placed over a pipe end, with the flange face extending from the pipe end having enough distance to apply a weld bead on the diameter inside. The Class 300 Stainless Steel Blind Flange doesn’t have a boring center or a hub. These flanges can withstand heavy pressures due to their heavy-duty construction. All our flanges can be customized into different sizes and dimensions to suit your requirements.
The SS Puddle Flange is used to ensure a watertight seal when pipes are passed to wall structures, which are below ground level. These flanges seal the outside of pipes and have a diameter of 25-1300mm. The Pn16 Stainless Steel Flanges are ideal for creating piping system access points. We manufacture all our products under strict supervision from our experienced and knowledgeable team members. Our team members use the best raw materials using the best technology following international and national standards. If you want to know more about our Stainless Steel flanges or want to, customize them contact us for more details.
Table of Contents
Specification Format of Stainless Steel Flanges

Stainless Steel Flanges Sizes
SS Pipe Flange Schedule
Stainless Steel Forged Flanges Pressure Class
Stainless Steel Flat Flange Dimensional Standard
Large Stainless Steel Flanges Others Standards
Stainless Steel Flanges Material Grade
Chrome Steel Hot Forged Flange Advantages
Chrome Nickel Steel Weld Flanges Origin
Inox Steel Blind Flange Referred Standard
Nirosta Forged Steel Flanges Chemical Content
Stainless Steel Ring Flange Thread types
Stainless Steel Van Stone Flange Value Added Services
Austenitic Stainless Steel Hot Forged Flange ASTM standard
Martensitic Stainless Steel Weld Flanges Requirements
Ferritic Stainless Steel Plate Flanges Testing Methods
Martensitic Steel Lap Joint flange Manufacturing Technique
Other Types of SS flanges
Types of Stainless Steel Flanges
Faces Types of Stainless Steel UNI Flange
ASTM A182 SS Marking
SS Weld Neck Flanges Types
Stainless Steel Grooved Flange Finish
SS Blind Flanges Types
Stainless Steel Slip on Flanges Types
ASTM A182 Stainless Steel Socket Weld Flange Test Certificates
Number of Holes for ASME SA182 SS Weld Neck Flange
Most Selling types of Forged Stainless Steel Flanges
Pn16 Stainless Steel Flanges
SS Puddle Flange
Forged Stainless Steel Flanges
ASME SA182 Slip On Flange
Stainless Steel Weld Neck Flange
Class 300 Stainless Steel Flanges
ASME B16.5 SS Plate Flange
Stainless Steel Reducing Flange
Stainless Steel Square Flange
Stainless Steel Lap Joint Flange
SS Slip On Flange
ASTM A182 SS Spectacle Blind Flanges
ASME SA182 Stainless Steel Threaded Flanges
DN15-1200 3000lbs Austenitic Stainless Steel SORF Pipe
ASTM A182 Lapped Joint Flanges, 1 Inch, ANSI B16.5
ASTM A182 SW Flanges, Class 150, 2 Inch, SCH 40, RF
Stainless Steel Flange Price List
| Price list of Stainless Steel Flange | Price in USD | Price in UAE Dirham |
|---|---|---|
| A 182 GR F304/304L FLG WN 150 RF | $ 4.26 | AED 15.64 |
| SS 150lbs BSP Threaded Flanges | $ 31.05 | AED 114.05 |
| ASTM A182 150lbs SORF Pipe | $ 22.80 | AED 83.75 |
| 2 inch class 150 sch 10 ss raised face weld neck flange | $ 89.42 | AED 328.45 |
| 4 inch SS Cls 150 RF blind flange | $ 176.90 | AED 649.77 |
| 24 inch 150# raised face SORF flange | $ 3,178.94 | AED 11676.47 |
| SA 182 F317L ANSI B16.5 DN100,150# SORF | $ 6.62 | AED 24.30 |
Class 150 SS Slip on Flange Dimensions

| Normal Pipe Size For (NPS) | 1/2 | 3/4 | 1 | 1-1/4 | 1-1/2 | 2 | 2-1/2 | 3 | 3-1/2 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | |
| I.D. | .88 | 1.09 | 1.36 | 1.7 | 1.97 | 2.44 | 2.94 | 3.57 | 4.07 | 4.57 | 5.66 | 6.72 | 8.72 | 1 .88 | 12.88 | 14.14 | 16.16 | 18.18 | 2 .2 | 22.22 | 24.25 | |
| O.D. For | 3.5 | 3.88 | 4.25 | 4.62 | 5 | 6 | 7 | 7.5 | 8.5 | 9 | 10 | 11 | 13.5 | 16 | 19 | 21 | 23.5 | 25 | 27.5 | 29.5 | 32 | |
| Circle Bolt | 2.38 | 2.75 | 3.12 | 3.5 | 3.88 | 4.75 | 5.5 | 6 | 7 | 7.5 | 8.5 | 9.5 | 11.75 | 14.25 | 17 | 18.75 | 21.25 | 22.75 | 25 | 27.25 | 29.5 | |
| Raised | 1.38 | 1.69 | 2 | 2.5 | 2.88 | 3.62 | 4.12 | 5 | 5.5 | 6.19 | 7.31 | 8.5 | 1 .62 | 12.75 | 15 | 16.25 | 18.5 | 21 | 23 | 25.25 | 27.25 | |
| RF | .063 | .063 | .063 | .063 | .063 | .063 | .063 | .063 | .063 | .063 | .063 | .063 | .063 | .063 | .063 | .063 | .063 | .063 | .063 | .063 | .063 | |
| H | 1.19 | 1.5 | 1.94 | 2.31 | 2.56 | 3.06 | 3.56 | 4.25 | 4.81 | 5.31 | 6.44 | 7.56 | 9.69 | 12 | 14.38 | 15.75 | 18 | 19.88 | 22 | 24.25 | 26.12 | |
| Raised Face Wall Thickness | .62 | .62 | .69 | .81 | .88 | 1 | 1.12 | 1.19 | 1.25 | 1.31 | 1.44 | 1.56 | 1.75 | 1.94 | 2.19 | 2.25 | 2.5 | 2.69 | 2.88 | 3.13 | 3.25 | |
| Thickness1 | .38 | .44 | .5 | .56 | .62 | .69 | .82 | .88 | .88 | .88 | .88 | .94 | 1.06 | 1.13 | 1.19 | 1.32 | 1.38 | 1.5 | 1.63 | 1.75 | 1.82 | |
| Flat Face | (Thickness2) | .56 | .56 | .63 | .75 | .82 | .94 | 1.06 | 1.13 | 1.19 | 1.25 | 1.38 | 1.5 | 1.69 | 1.88 | 2.13 | 2.19 | 2.44 | 2.63 | 2.83 | 3.07 | 3.19 |
| Bolts Holes For | .62 | .62 | .62 | .62 | .62 | .75 | .75 | .75 | .75 | .75 | .88 | .88 | .88 | 1 | 1 | 1.12 | 1.12 | 1.25 | 1.25 | 1.38 | 1.38 | |
| Number Of Bolt Hole | 4 | 8 | 12 | 16 | 20 | |||||||||||||||||
Material Specification of ASME SA182 Slip On Flange
| 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 |
ASME B16.5 SS Plate Flange Weight Chart
| CLASS | 900 lb | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Pipe Size | ½ | 1 | 1½ | 2½ | 4 | 6 | 10 | 14 | 18 | 24 |
| Threaded | 6 | 7.5 | 14 | 31 | 53 | 110 | 245 | 400 | 647 | 1480 |
| Slip On | 6 | 7.5 | 31 | 245 | 400 | 647 | 1480 | |||
| Weld Neck | 7 | 8.5 | 31 | 268 | 562 | 924 | 2107 | |||
| Socket Weld | 6 | 7.5 | 31 | 245 | 400 | 647 | 1480 | |||
| Blind | 4 | 9 | 32 | 54 | 115 | 290 | 520 | 880 | 2099 | |
| Lap Joint | 6 | 7.5 | 25 | 51 | 105 | 277 | 415 | 670 | 1659 | |
Standard Specification of ASME B16.5 Stainless Steel Flanges
| AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) |
|
|---|
SS Flanges Testing Methods
Chemical Compatibility of ASTM A182 SS Pipe Flange
| Grade | Mn | C | Ti | P | Si | S | Mo | Cr | N | Ni | Fe | |
| 304L | min. | 18.0 | 8.0 | |||||||||
| max. | 2.0 | .030 | .045 | .75 | .030 | 2 .0 | .10 | 12.0 | ||||
| 304 | min. | 18.0 | 8.0 | |||||||||
| max. | 2.0 | .08 | .045 | .75 | .030 | 2 .0 | .10 | 1 .5 | ||||
| 304H | min. | .04 | 18.0 | 8.0 | ||||||||
| max. | 2.0 | .010 | .045 | .75 | .030 | 2 .0 | 1 .5 | |||||
| SS 310S | 2 max | .08 max | .045 max | 1.00 max | .030 max | .75 max | 24.00 26.00 | 53.095 min | 19.00 21.00 | |||
| SS 310 | 2 max | .015 max | .020 max | .015 max | .015 max | .10 max | 24.00 26.00 | 54.7 min | 19.00 21.00 | |||
| SS 310H | 2 max | .04 .10 | .045 max | 1.00 max | .030 max | 24.00 26.00 | 53.885 min | 19.00 21.00 | ||||
| 316L | min. | 2.03.0 | 16.0 | 1 .0 | ||||||||
| max. | 2.0 | .035 | .045 | .75 | .030 | 18.0 | 14.0 | |||||
| 316 | min. | 2.03.0 | 16.0 | 1 .0 | ||||||||
| max. | 2.0 | .035 | .045 | .75 | .030 | 18.0 | 14.0 | |||||
| 316TI | 1 .00 14.00 | .08 max | .045 max | 2.0 max | .030 max | .75 max | 16.00 18.00 | 2.00 3.00 | ||||
| SS 317L | 2.0 max | .035 max | .045 max | 1.0 max | .030 max | 3.00 4.00 | 18.00 2 .00 | 11.00 15.00 | 57.89 min | |||
| 317 | 2 max | .08 max | .045 max | 1 max | .030 max | 3.00 4.00 | 18.00 2 .00 | 57.845 min | ||||
| SS 321H | 2.0 max | .04 .10 | 4(C+N) .70 max | .045 max | 1.0 max | .030 max | 17.00 19.00 | .10 max | 9.00 12.00 | |||
| SS 321 | 2.0 max | .08 max | 5(C+N) .70 max | .045 max | 1.0 max | .030 max | 17.00 19.00 | .10 max | 9.00 12.00 | |||
| 410 | min. | 11.5 | ||||||||||
| max. | 1.0 | .15 | .040 | 1.00 | .030 | 13.5 | .75 | |||||
| 904L | min. | 4.00 | 19.0 | .10 | 23.00 | |||||||
| max. | 2.00 | .20 | .045 | 1.00 | .035 | 5.00 | 23.0 | .25 | 28.00 | |||
| 347/ 347H | 2.0 max | .08 max | .045 max | 1.0 max | .030 max | 17.00 2 .00 | 9.0013.00 | |||||
| 446 | min. | 23.0 | .10 | |||||||||
| max. | 1.5 | .2 | .040 | .75 | .030 | 3 .0 | .25 | .50 | ||||
Mechanical Characteristics of SS Slip On Flange
| Grade | Melting Point | Density | Yield Strength (0.2%Offset) | Elongation | Tensile Strength |
|---|---|---|---|---|---|
| 304H |
|
8 g/cm3 |
|
40 % |
|
| 304/ 304L |
|
8 g/cm3 |
|
35 % |
|
| 310 / 310S / 310H |
|
7.9 g/cm3 |
|
40 % |
|
| 306/ 316H |
|
8 g/cm3 |
|
35 % |
|
| 316L |
|
8 g/cm3 |
|
|
|
| 317 |
|
7.9 g/cm3 |
|
|
|
| 321 |
|
8 g/cm3 |
|
|
|
| 347 |
|
8 g/cm3 |
|
|
|
| 904L |
|
7.95 g/cm3 |
|
|
Material Equivalent of Stainless Steel Lap Joint Flange
| STANDARD | WERKSTOFF NR. | North America | Japan | British Standard | Russia | France | Europe |
|---|---|---|---|---|---|---|---|
| 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 |
Dimensions Tolerances Of Stainless Steel Reducing Flange
| Welding neck
|
||||
| * | outside diameter | O.D. 600 if smaller |
+ 1.6
_
|
|
| O.D. over 600 |
+ 3.1
_
|
|||
| 250 and smaller |
+ 0.7
_
|
|||
| inside diameter | 12 though 450 |
+ 1.6
_
|
||
| (bore) | 500 and larger |
+ 3.1
|
– 1.6
|
|
| 1.6 raised face |
+ 0.4
_
|
|||
| diameter of | 6.3 raised face tounge & | |||
| contact face | groove male and female |
+ 0.4
_
|
||
| * | diameter of hub | 125 and smaller |
+ 2.2
|
– 0.7
|
| at point of weding | 150 and larger |
+ 4.0
|
– 0.7
|
|
| Thickness | 450 and smaller |
+ 3.1
|
– 0.0
|
|
| 500 and larger |
+ 4.7
|
– 0.0
|
||
| length through | 250 and smaller |
+ 1.6
_
|
||
| hub | 300 and larger |
+ 3.1
_
|
||
| bolt circle | 600 and smaller |
+ 0.7
_
|
||
| 600 and larger |
+ 1.6
_
|
|||
| drilling | bolt hole spacing |
+ 0.7
_
|
||
| eccenticity with respect | ||||
| to bore | 0.70 max | |||