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Duplex Pipe Fittings

Duplex Steel Pipe Fittings - Product Overview

Hars Tubes Fittings is a trusted manufacturer, supplier, and exporter of high-performance Duplex Steel Pipe Fittings available in all ASTM-grade duplex and super duplex materials. We offer seamless and welded duplex fittings specially engineered for superior strength, corrosion resistance, chloride stress-cracking resistance, and leak-proof operation in highly demanding applications. Our duplex fittings offer excellent dimensional accuracy, fatigue strength, and long service life—widely used in industries such as Offshore Oil & Gas, Petrochemical, Desalination Plants, Chemical Processing, Marine, Power Generation, and Refineries. Every product is manufactured in compliance with ASME, ANSI, DIN & EN international standards, ensuring maximum quality, safety, and long-term reliable performance.

Duplex Steel Pipe Fittings

Duplex Steel Pipe Fittings – Grades & Specifications

Specifications : ASTM A815 UNS S31803 / S32205 / Super Duplex UNS S32750 / S32760

Types : Elbows (45° / 90°), Tee, Reducer, End Cap, Stub End, Cross, Pipe Nipples

Size Range : 1/2" (15 NB) to 48" (1200 NB)

Schedule : Sch 10, Sch 20, Sch 40, Sch 80, Sch 160, XXS

Standards :

ASME B16.9, ASME B16.11, MSS-SP-75, MSS-SP-43

Ends : Beveled Ends (BE), Plain Ends (PE), Threaded Ends

We Specialize In : Duplex Butt-Weld Fittings, Socket Weld Fittings, Screwed Fittings, High-Pressure Offshore Duplex Pipe Fittings

Slip On Flanges

Alloy 2205 Elbow

Weld Neck Flanges

Uns S31803 Tee

Blind Flanges

ASTM A815 Duplex 2205 Reducer

For the Latest Duplex Steel Pipe Fittings Price List – Click Here

Duplex Stainless Steel Pipe Fittings

Duplex Stainless Steel 90D Elbow Standards

  • ASTM A815
  • ASME SA 815

SAF® 2205 Duplex Fittings Sizes

  • Welded Fittings: 1/2″ – 48″
  • Seamless Fittings: 1/2″ – 10″
  • Schedule: SCH 10 – SCH 160

Duplex Pipe Fittings Form

  • Elbow
  • Tee
  • Reducer
  • Cap

Duplex Steel S32750 Tee Process

  • Welded
  • Seamless
  • Fabricated

SM22CR® Reducer Origin

  • Egypt
  • European
  • Libya
  • American

Duplex Steel 2205 Pipe Fittings Finish

  • Polished
  • Pickled

22 Chrome Elbow Application

  • Paper & Pulp Industries
  • Oil & Gas Processing
  • Construction
  • Petrochemicals

SAF 2205 Cap Testing

  • PMI Test
  • NDT Test
  • HIC Tested
  • Ultrasonic Test

DSS 2205 Buttweld Fittings Features

  • Manufacturing Process
  • High Strength
  • Corrosion Resistance
  • Testing Standards

UNS S32205 Pipe Fittings Size Range

SAF® 2205 Duplex Pipe Fittings Sizes

  • DSS UNS S32205 Seamless ButtWeld Fittings : 1/2 – 10 inch
  • Duplex Stainless Steel 32205 Welded Pipe Fittings : 1/2″ – 48″
  • Duplex 2205 Pipe Fittings : ½” NB to 24″ NB
  • Schedule : SCH 10 – SCH 160

Alloy 2205 Elbow Schedule Chart

Schedule 10 Schedule 20
EXT Hvy SCH 80
SCH 100 SCH 120
XX Hvy –
SCH 30 STD Wall
SCH 40 SCH 60
SCH 140 SCH 160

Duplex Pipe Fittings Types

Slip On Flanges

Duplex 2205 Straight Tee

Weld Neck Flanges

Alloy 2205 Reducing Tee

Blind Flanges

Duplex Steel BW S32750 Equal Cross

Screwed Threaded Flanges

Duplex 2205 Reducing Cross

Socket Weld Flanges

2205 Duplex Stainless Steel Reducers

Lap Joint Flanges

Duplex Stainless Steel 2205 End Cap

Long Weld Neck Flanges

ASME SA815 S32205 Long Radius Bend

Ring Type Joint Flanges

Duplex 2205 Steel Seamless Buttwelding 180° Returns

Spectacle Blind Flanges

Duplex 2205 Long Stub End

Dimension of Duplex Stainless Steel 32205 Pipe Fittings

Nominal
PipeSize		 Outside
Diameter		 90° Elbows 45° Elbows 180° Returns
(inches) Long Radius Short Radius Long Radius Long Radius
(mm) (inches) Center to Face(inches) Center to Face(inches) Center to Face(inches) Radius(inches) Center to Center(inches) Back to face(inches)
1/2 21.3 0.840 1 1/2 – 5/8 2 1 7/8
3/4 26.7 1.050 1 1/8 – 7/16 2 1/4 1 11/16
1 33.4 1.315 1 1/2 1 7/8 3 2 3/16
1 1/4 42.2 1.660 1 7/8 1 1/4 1 3 3/4 2 3/4
1 1/2 48.3 1.900 2 1/4 1 1/2 1 1/8 3 4 1/2 3 1/4
2 60.3 2.375 3 2 1 3/8 4 6 4 3/16
2 1/2 73.0 2.875 3 3/4 2 1/2 1 3/4 5 7 1/2 5 3/16
3 88.9 3.500 4 1/2 3 2 6 9 6 1/4
3 1/2 101.6 4.000 5 1/4 3 1/2 2 1/4 7 10 1/2 7 1/4
4 114.3 4.500 6 4 2 1/2 8 12 8 1/4
5 141.3 5.563 7 1/2 5 3 1/8 10 15 10 5/16
6 168.3 6.625 9 6 3 3/4 12 18 12 5/16
8 219.1 8.625 12 8 5 12 24 16 5/16
10 273.1 10.750 15 10 6 1/4 15 30 20 3/8
12 323.9 12.750 18 12 7 1/2 18 36 24 3/8

UNS S31803 Weld Fittings Weight Chart

Product range and theoretical weights (kg)
DN Schedule 10S Schedule 40S Schedule 80S
900 Elbow 450 Elbow Equal tee 900 Elbow 450 Elbow Equal tee 900 Elbow 450 Elbow Equal tee
8 0.02 0.01 0.03 0.03 0.02 0.06 0.04 0.03 0.07
10 0.03 0.02 0.05 0.03 0.02 0.03 0.06 0.04 0.09
15 0.06 0.03 0.09 0.08 0.04 0.10 0.10 0.05 0.14
20 0.07 0.03 0.13 0.08 0.04 0.17 0.11 0.05 0.20
25 0.14 0.08 0.28 0.15 0.11 0.29 0.22 0.14 0.38
32 0.23 0.11 0.49 0.26 0.17 0.59 0.40 0.23 0.68
40 0.30 0.17 0.68 0.40 0.23 0.86 0.51 0.29 1.02
50 0.50 0.25 0.85 0.70 0.4 1.28 0.91 0.59 1.59
65 0.85 0.48 1.41 1.40 0.77 2.19 1.81 0.99 3.13
80 1.25 0.63 1.77 2.20 1.08 3.31 2.97 1.50 4.45
90 1.70 0.75 2.67 2.83 1.42 4.08 4.00 2.00 5.44
100 2.10 1.08 3.46 4.47 2.09 5.27 6.18 2.81 7.71
150 5.45 2.72 8.07 10.89 5.44 10.99 16.32 8.16 13.61
200 10.20 5.33 15.65 21.54 10.77 20.91 33.11 16.56 28.12
250 18.15 9.75 26.46 38.56 19.27 35.38 51.71 25.86 49.90
300 25.80 13.62 39.46 59.42 29.71 62.14 79.38 39.69 83.91

Dimensions of ANSI B16.9 SAF 2205 Reducer

Nominal
Pipe Size		 Outside
Diameter		 Reducers
Reduced from
(inches)		 (mm) (inches) Reduced to
(inches)		 Concentric & Eccentric Length
(inches)
1/2 21.3 0.840 1/4 1 1/2
3/8 1 1/2
3/4 26.7 1.050 3/8 2
1/2 2
1 33.4 1.315 3/8 2
1/2 2
3/4 2
1 1/4 42.2 1.660 1/2 2
3/4 2
1 2
1 1/2 48.3 1.900 1/2 2 1/2
3/4 2 1/2
1 2 1/2
1 1/4 2 1/2
2 60.3 2.375 3/4 3
1 3
1 1/4 3
1 1/2 3
2 1/2 73.0 2.875 1 3 1/2
1 1/4 3 1/2
1 1/2 3 1/2
2 3 1/2
3 88.9 3.500 1 3 1/2
1 1/2 3 1/2
2 3 1/2
2 1/2 3 1/2
3 1/2 101.6 4.000 1 1/4 4
1 1/2 4
2 4
2 1/2 4
3 4
4 114.3 4.500 1 1/2 4
2 4
2 1/2 4
3 4
3 1/2 4
5 141.3 5.563 2 5
2 1/2 5
3 5
3 1/2 5
4 5
6 168.3 6.625 2 1/2 5 1/2
3 5 1/2
3 1/2 5 1/2
4 5 1/2
5 5 1/2
8 219.1 8.625 3 6
3 1/2 6
4 6
5 6
6 6
10 273.1 10.750 4 7
5 7
6 7
8 7
12 323.9 12.750 5 8
6 8
8 8
10 8
UNS S31803 Tee Corrosion Resistance

UNS S31803 Tee Corrosion Resistance

Corrosion Rate, ipy
Grade Solution B, 1201/4F Solution A, 1401/4F
Duplex 2205 3.9 3.1

ASTM A815 Duplex 2205 Reducer Pressure Rating

Duplex Pipe Fittings Pressure Rating (psig)
NPS (inch) Pipe Schedule OD (inch) Wall Thick. (in) Temperature
300 Fitting 100 Fitting 200 Fitting 400 Fitting 500 Fitting
16700 16700 16700 15500 14400
1 1/2in Allowable Stress (Pressure Rating)
80 1.0900 0.0200 2303 2303 2303 2138 1986
40 1.0900 0.0145 1629 1629 1629 1512 1404
160 1.0900 0.0281 3362 3362 3362 3120 2899
4in 80 4.0500 0.0337 1596 1596 1596 1482 1377
40 4.0500 0.0237 1102 1102 1102 1023 950
160 4.0500 0.0531 2611 2611 2611 2424 2552
2in 80 2.0375 0.0218 1985 1985 1985 1843 1712
40 2.0375 0.0154 1371 1371 1371 1272 1182
160 2.0375 0.0344 3283 3283 3283 3047 2831
3in 80 3.0500 0.0300 1844 1844 1844 1712 1590
40 3.0500 0.0216 1301 1301 1301 1208 1122
160 3.0500 0.0438 2787 2787 2787 2587 2403
8in 80 8.0625 0.0500 1218 1218 1218 1131 1050
40 8.0625 0.0322 771 771 771 716 665
160 8.0625 0.0906 2298 2298 2298 2133 1982
10in 80 10.0750 0.0594 1159 1159 1159 1075 999
40 10.0750 0.0365 699 699 699 649 603
160 10.0750 1.0125 2289 2289 2289 2124 1974

Alloy 2205 Reducer Chemical Composition

C

Carbon

1.0%

Si

Silicon

2.0%

S

Sulfur

0.2%

P

Phosphorus

0.02%

Other Related Duplex Steel Pipe Fittings

  • Duplex Steel Elbow Manufacturers in India
  • Duplex Steel Tee Manufacturers in India
  • Duplex Steel Reducer Manufacturers in India
  • Duplex Steel Cap Manufacturers in India
  • Duplex Steel Stub End Manufacturers in India
  • Duplex Steel Cross Manufacturers in India
  • Duplex Steel Long Radius Bend Manufacturers in India

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