PROVIDING DUPLEX AND SUPER DUPLEX STEEL PRODUCTS SINCE 1975

Duplex Steel & Alloys is a well-known Manufacturer, Supplier, and Distributor of Duplex. We offer Duplex S32205 and S31803 in a variety of lengths, including single random, double random, and cut lengths and are also available in a variety of designs, including seamless, electrical resistance welding, welded, and fabricated. We also Fabricate these Duplex Steel in various sizes, grades, Forms, dimensions, thicknesses, etc. As DSS Flanges have greater tensile and yield strength than traditional austenitic or ferritic SS grades, and it's widely demanded. We sell high-quality Flanges at a competitive rate, by making use of cutting-edge tools and technology.

The Duplex Steel Flanges are made up of 25% of Chromium, 4% of Molybdenum, and 7% of Nickel. Duplex Steel S32205 contains greater tensile strength, better corrosion resistance, and good stress corrosion cracking resistance. DSS S31803 comprises of duplex microstructure due to its low nickel content and absolutely austenitic form.

Duplex Steel Flange, Duplex Flange Price List, DSS Flange, Duplex Stainless Steel Flange, Duplex Steel Flange Suppliers in Mumbai, India.

Duplex Steel Slip On Flange, Duplex Steel Flanges Suppliers, Duplex Spectacle Blind Flange, ASTM A182 Duplex Steel Flanges, DSS Blind Flange, ASTM A182 Duplex Steel Flange, Duplex Steel Flange Manufacturers in India.

Stainless Steel 304 Flanges

DSS S32205 and S31803 Flanges are extensively applicable in heat exchangers, pressure vessel parts, chemical tanks, oil and gas refineries, marine, petrochemicals, chemical industries, paper industry, compressor parts, and a lot more areas.

Our S32205 and S31803 Flanges are extremely strong and therefore desirable for long-lasting uses. The extraordinary characteristic of these Flanges is their ductility, which allows them to operate in an intolerant environment while being resilient. Duplex Steel & Alloys is among the most trustworthy suppliers, never delivering poor grades or poor-quality DSS Flanges to our customers. We use modern machinery and also test the raw material prior to being applicable in the fabrication process. All the Flanges here are manufactured by following all the National as well as International Quality traditions with precise schedules. We provide these Flanges to fulfill the precise and compatible needs of our valued customers.


Duplex Steel Flanges Specification

Standard ASTM A182 / ASME SA182
Dimensions ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Flange Size Chart 1/2" (15 NB) to 48" (1200NB), DN10~DN5000
Pressure Rating Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Pressure Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS 16 K, 5K, 10 K, 20 K, 30 K, 40 K, 63 K
Flange Connection / Flange Face Type Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove, Flange Pipe.
Origin West Europe / Japan / Indian / USA / Korean
Types of Flanges Threaded / Screwed / Forged / Plate
Coating Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized
Test Of Flange Direct-reading Spectrograph, Ultrasonic flaw detector, Magnetic particle detector, X-ray detector, Hydrostatic testing machine.
Production technique Used Heat treated, Forged and Machined
Equipment Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc.
Test Certificates EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc

Types of Duplex Steel Flanges

SORF Flange

Duplex Stainless Steel Slip On Flange

Plate Flanges

Duplex Stainless Steel Plate Flanges

Weld Neck Flange

Duplex Steel Welding Neck Flange

Blind Flange

Duplex Blind Flange

Spectacle Blind Flange

Duplex Spectacle Blind Flange

Socket Weld Flange

Duplex Steel Socket Weld Flange

Threaded Flange

ASTM A182 Duplex Threaded Flange

Lap Joint Flange

Duplex Stainless Steel Lap Joint Flange

Ring Type Joint Flange

Duplex Stainless Steel RTJ Flange

Long Weld Neck Flange

DSS Long Weld Neck Flange

Tongue and Groove Flange

DSS Tongue and Groove Flange

Orifice Flange

Duplex Steel Orifice Flange

Duplex Stainless Steel Pipe Flange, Duplex Flange Supplier, Duplex Steel SORF Flange, ASME B16.5 Duplex Steel Flanges, Duplex Steel Flanges Suppliers in Mumbai.

If you are looking for best prices for Duplex Steel Flanges, Duplex Stainless Steel Flange, Duplex Pipe Flange email us on info@duplexsteelalloys.com or call us on +91 9664408767

Duplex Stainless Steel Flange Price List

Product Price
Duplex Stainless Steel Flange Price List US $8.72-21.57 / Piece
Duplex Steel Slip on Flange Price US $13.58-30.23 / Piece
Duplex Steel Weld Neck Flange Price List US $8.72-13.58 / Piece
Duplex Steel Square Flange Price List S $13.56-28.23 / Piece
Duplex Steel Orifice Flange Price US $6.82-21.57 / Piece
DSS 2 Inch Pipe Flange Price US $15.58-28.45 / Piece
Duplex Stainless Steel Lapped Flange Price US $15.86-31.33 / Piece
Duplex Threaded Flange Prices US $5.52-19.47 / Piece
Duplex Steel Blind Flange Price US $1.2-2.9 / Kilogram
Duplex Steel Spectacle Blind Flange Price US $2,100.00-3,500.00 / Ton

Duplex Steel Flanges Pressure and Temperature Ratings

Temperature °F Class 150 Class 600 Class 1500 Class 400 Class 900 Class 300 Class 2500
-20 to 100 275 1440 3600 960 2160 720 6000
300 205 1080 2700 720 1620 540 4500
200 230 1200 3000 800 1800 600 5000
400 190 995 2485 660 1490 495 4140
600 140 875 2185 580 1310 435 3640
650 125 860 2150 575 1290 430 3580
500 170 930 2330 620 1395 465 3880
700 110 850 2125 565 1275 425 3540
750 95 830 2075 555 1245 415 3460
850 65 790 1980 530 1190 395 3300
800 80 805 2015 540 1210 405 3360
900 50 780 1945 520 1165 390 3240
950 35 765 1910 510 1145 380 3180
1000 20 640 1605 430 965 320 2675
1100 20 515 1285 345 770 255 2145
1150 20 400 995 265 595 200 1655
1050 20 615 1545 410 925 310 2570
1200 20 310 770 205 465 155 1285
1250 20 225 565 150 340 115 945
1300 20 170 430 115 255 85 715
1400 20 95 240 65 145 50 400
1350 20 125 310 80 185 60 515
1450 15 70 170 45 105 35 285
1500 10 55 135 35 80 25 230

Duplex Stainless Steel Flange Weight Chart

NPS (Nominal Pipe Size) Loose (Lap Joint) NPT (Threaded) SORF (Slip On) BLRF (Blind) SWRF (Socket Weld) WRNR (Weld Neck)
½ 1 1 1 2 2 2
1 2 2 2 2 2 3
3 3 3 3 3 3
¾ 2 2 2 2 2 2
3 3 3 4 3 4
8 8 8 7 8 10
2 5 5 5 5 5 6
3 9 9 9 9 9 11.5
4 13 13 13 17 13 16.5
11 12 11 13 11 12
5 15 15 15 20 15 21
8 30 30 30 47 30 42
6 19 19 19 27 19 26
10 43 43 43 70 43 54
24 275 220 220 430 220 268
14 105 90 90 140 90 114
12 64 64 64 123 64 88
16 140 98 106 180 98 140
20 195 165 165 285 165 197
18 160 130 130 220 130 165
22 245 185 185 355 185 225

Duplex Steel Flange Dimensions

Normal Pipe Size (NPS) Of Flanges (I.D.) Inside Diameter Thickness Of Raised Face (RF)
(T)
Outside Daimeter (O.D.) Raised Face
(R)
RF
(Raised Face)
Holes Of Bolts
(B)
H T1 Thickness Of Flat Face (FF)
(T2)
BC (Circle Of Bolt) Bolts Holes
Numbers
1/2 0.88 0.88 3.75 1.38 .063 0.62 1.50 0.50 0.82 2.62 4
1 1.36 1.06 4.88 2.00 .063 0.75 2.12 0.63 1.00 3.50 4
3/4 1.09 1.00 4.62 1.69 .063 0.75 1.88 .056 0.94 3.25 4
1-1/4 1.70 1.06 5.25 2.50 .063 0.75 2.50 0.69 1.00 3.88 4
2 2.44 1.31 6.50 3.62 .063 0.75 3.31 0.82 1.25 5.00 8
1-1/2 1.95 1.19 6.12 2.88 .063 0.88 2.75 0.75 1.13 4.50 4
2-1/2 2.94 1.50 7.50 4.12 .063 0.88 3.94 0.94 1.44 5.88 8
3 3.57 1.69 8.25 5.00 .063 0.88 4.62 1.06 1.63 6.62 8
3-1/2 4.07 1.75 9.00 5.50 .063 0.88 5.25 1.13 1.69 7.25 8
4 4.57 1.88 10.00 6.19 .063 0.88 5.75 1.19 1.82 7.88 8
5 5.66 2.00 11.00 7.31 .063 0.88 7.00 1.32 1.94 9.25 8
18 18.18 3.50 28.00 21.00 .063 1.38 21.00 2.32 3.44 24.75 24
6 6.72 2.06 12.50 8.50 .063 0.88 8.12 1.38 2.00 10.62 12
8 8.72 2.44 15.00 10.62 .063 1.00 10.25 1.56 2.38 13.00 12
10 10.88 2.62 17.50 12.75 .063 1.12 12.62 1.82 2.56 15.25 16
12 12.88 2.88 20.50 15.00 .063 1.25 14.75 1.94 2.82 17.75 16
14 14.14 3.00 23.00 16.25 .063 1.25 16.75 2.06 2.94 20.25 20
20 20.20 3.75 30.50 23.00 .063 1.38 23.12 2.44 3.69 27.00 24
16 16.16 3.25 25.50 18.50 .063 1.38 19.00 2.19 3.19 22.50 20
22 22.22 4.00 33.00 25.25 .063 1.63 25.25 2.57 3.94 29.25 24
24 24.25 4.19 36.00 27.25 .063 1.62 27.62 2.69 4.13 32.00 24

Dimensions Tolerances Of Duplex Steel Plate Flange

Flange Tolerance Table
D Inside Diameter (I.D.)
  • 10" and smaller: ±1/32" (0.8 mm)
  • 12" thru 18": +1/8" (3.2 mm)
  • 20" and larger: -1/16" (1.6 mm)
K Length of hub
  • 10" and smaller: ±1/16" (1.6 mm)
  • 12" and larger: ±1/8" (3.2 mm)
B Diameter of contact face
  • 1/16" raised face: ±1/32" (0.8 mm)
  • 1/4" RF (Raised Face), T/G (Tongue & Groove), (male & female), (m/f): ±1/64" (0.4 millimeter)
A O.D. (Outside Diameter)
  • When O.D. (Outside Diameter) is 24" or less: ±1/16" (1.6 millimeter)
  • When O.D. (Outside Diameter) is over 24": ±1/8" (3.2 millimeter)
J Diameter of hub at base
  • When hub base is 24" or smaller: ±1/16" (1.6 millimeter)
  • When hub base is over 24": ±1/8" (3.2 millimeter)
P Drilling
  • Circle Bolts: ±1/16" (1.6 mm)
  • Bolts hole spacing: ±1/32" (0.8 mm)
Eccentricity of bolt circle with respect to facing
  • 2 1/2" and smaller ±1/32" (0.8 mm) maximum
  • 3" and larger ±1/16" (1.6 mm) maximum
H Diameter of hub at point of welding
  • 5" and smaller: +3/32" (2.4 mm), -1/32" (0.8 mm)
  • 6" and larger: +5/32" (4.0 mm), -1/32 (0.8 mm)
C Thickness
  • 18" and smaller: ±1/8" (3.2 mm), -0"
  • 20" and larger: ±3/16" (4.8 mm), -0"

Ask Free Sample of Duplex Flange, SORF Flanges, WNRF Flange, SWRF Flange, BLRF Flange, RTJ Flange Please Call +91 9664408767

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Inspection & Testing of Duplex Steel Pipe Flange

Before being prepared for shipment to the customer, ASTM A182 Duplex Flanges Testing should be constructed in accordance with applicable standards and thoroughly tested for potential flaws.

Direct-reading Spectrograph

Direct-Reading Spectrograph

UI trasonic flaw detector

UI Trasonic Flaw Detector

Hydrostatic testing machine

Hydrostatic Testing Machine

X-ray detector

X-ray Detector

Magnetic particle detector

Magnetic Particle Detector

Flattening Test

Flattening Test

PMI Testing

PMI Testing

Hardness Test

Hardness Test

Pitting Resistance Test

Pitting Resistance Test

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Duplex Steel Flanges Supply in Below Countries

Products We Supplied Description Country
ASME SA182 DSS Long Weld Neck Flange Weight DSS Loose Flanges Portugal, New Zealand, Belgium, Taiwan
DSS GOST 12820-80 Plate Flanges Duplex 2500 LBS LWN Flange Dimensions Czech Republic, Chile, Jordan, Nigeria, Ecuador
Duplex Steel Forged Flanges Duplex Forged Flanges Belarus, Azerbaijan, South Africa, Gambia, Oman
Duplex Steel Raised Face Weld Neck Flange Duplex Welding Neck Flange Bulgaria, Nepal, Bhutan, Kuwait
ASTM A182 Slip On Flange Welding 600 LBS SA182 Duplex SORF Flanges Yemen, Slovakia, Puerto Rico, Romania, Mongolia
Duplex Steel End Blind Flange ANSI B16.47 DSS Socket Weld Flange Dimensions Hong Kong, Switzerland, Singapore, Australia
Duplex Steel Socket Weld Flange BS 10 Table F DSS Blind Flange Connection Estonia, Denmark, Vietnam, Hungary
Duplex Steel Raised Face Slip On Flange Dupelx Flat Face Slip On Flange Serbia, Malaysia, Germany, Venezuela

Common Application for Duplex Steel Flanges

Heavy Equipment

Heavy Equipment

Automotive

Automotive

Power Generation

Power Generation

Construction

Construction

Chemical Processing

Chemical

Oil & Gas

Oil & Gas

Shipbuilding

Shipbuilding

Aerospace

Aerospace