Duplex Steel Pipe Fittings

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Microtech Stainless Steel Co.

105, Ratan Sadan Bldg., Shop No. 16, 5th Kumbharwada Lane, Mumbai, Maharashtra - 400004, India

Mobile : +91-9724783780

Phone : +91-22-23822119

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  • Microtech Stainless Steel Co. is specialized in manufacturing and supplying of Duplex Steel Pipe fittings , Pipe Fitting, Forged Fittings, Butt weld fittings in Stainless steel, alloy Steel & carbon Steel since 1991, we manufacture wide range of Duplex Steel Pipe fittings such as Duplex Steel Elbows, Duplex Steel Tees, Duplex Steel Reducers, Duplex Steel pipe end Caps, Duplex Steel Pipe Bends etc. as per International standard like ASME/ASTM/API, we are supplying & exporting Duplex Steel Pipe fittings in seamless & welded both forms to more than 60 countries for over 2 decades, we have our dealers & distributors in Saudi Arabia,United Arab Emirates,Oman,Kuwait,Qatar,Sri Lanka, Microtech Stainless Steel Co. is the only company in INDIA which is approved Manufacturer & supplier of Duplex Steel Pipe fittings in 300 top companies worldwide. Few of them are ORPIC, NIORDC, Saudi Aramco, SABIC, PIDMCO, GASCO, KNPC, Indian Oil, BPCL, HPCL, NTPC, BARC & Indian Navy, Microtech Stainless Steel Co. is ISO 9001:2008, ISO 14001, OHSAS 18001 Certified Company since 2010.


Infrastructure : Microtech Stainless Steel Co. is 6th largest Duplex Steel Pipe fittings & Flanges manufacturers in INDIA. we have following latest automated machines to manufacture Duplex Steel Pipe fittings : Induction Elbow Making Machines, Bulge Forming Machine, Pipe Bending Machine, Elbow Cold Forming Machine, Induction Elbow Machine, Hydraulic Pressing Machine, Elbow and Pipe Bending Machine, Beveling Machine, we have largest Four-Column Hydraulic Press in INDIA which is used for pipe bending, pipe fitting press forming, metal sheet stretching and pulling. Microtech Stainless Steel Co. . INDIA's Engineering & Forging Company related to Petro-Chemical and Oil & Gas Industry.

Duplex Steel Buttweld Pipe Fittings :

  • Range - 1/2"NB TO 24"NB IN SCH: 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS available with NACE MR 01-75
  • Type - SEAMLESS / WELDED/ FABRICATED
  • Form :
  • Elbows in Long & Short Radius in 45 deg, 90 deg, 180 deg.
  • Equal, Unequal Tee & Barred Tee.
  • Eccentric Reducer & Concentric Reducer.
  • Caps & Crosses.
  • Long & Short Stub End.
  • Swage Nipple & Barrel Nipple.
  • End - Duplex Steel Long Radius Bend
  • Long Radius Bend, Piggable Bend, Hot Bend with Radius R=3D, 5D, 6D, 8D, 10D & 20D.
  • Minimum wall thinning rate and ovality
  • No wrinkles


Duplex Steel Forged Pipe Fittings :

  • Range¼” NB to 4” NB in 3000 LBS, 6000 LBS, 9000 LBS available with NACE MR 01-75.
  • Type  - Socket Weld (S/W) & Screwed (SCRD)
  • Form - Elbow 45 deg & 90 degree, Tee, Union, Full & Half coupling, Cross, Cap, Swage Nipple, Plug, Bush
  • Grade - UNS NO.S 31803, S 32205.
  • Standard - ASTM / ASME A/SA 182
  • Grade - F 44, F 45, F51, F 53, F 55, F 60, F 61
  • Other - Customised Fittings


Duplex Steel Butt Weld Pipe Fittings :

  • Standard - ASTM / ASME SA 815
  • Grade - UNS NO.S 31803, S 32205.


Duplex Steel Forged Pipe Fittings :

  • Standard - ASTM / ASME A/SA 182
  • Grade - F 44, F 45, F51, F 53, F 55, F 60, F 61
  • Other - Customised Fittings


Manufacturing of 2507 Duplex Fittings :

  • Range¼” NB to 4” NB in 3000 LBS, 6000 LBS, 9000 LBS available with NACE MR 01-75.
  • Type - Socket Weld (S/W) & Screwed (SCRD)
  • Form - Elbow 45 deg & 90 degree, Tee , Union, Full & Half coupling, Cross, Cap, Swage Nipple, Plug, Bush


Duplex Pipe Fittings :

  • Duplex stainless steels have a mixed microstructure of austenite and ferrite, the aim being to produce a 50/50 mix, although in commercial alloys, the mix may be 40/60 respectively.
  • Duplex steels have improved strength over austenitic stainless steels and also improved resistance to localised corrosion, particularly pitting, crevice corrosion and stress corrosion cracking. They are characterised by high chromium (19–28%) and molybdenum (up to 5%) and lower nickel contents than austenitic stainless steels. The most used duplex stainless steel are the 2205 (22% Chromium, 5% Nickel) and the 2507 (25% Chromium, 7% Nickel); the 2507 is known as “super duplex” due to its higher resistance to corrosion.
  • The mechanical properties of Duplex steels are approximately double those of singular austenitic steels, and resistance to stress corrosion cracking is far superior to type 316 stainless steel in chloride solutions. Duplex material has ductile or brittle transition at approximately -50 degrees.


Type of Duplex Steel Pipe Fittings :

  • Duplex Steel Pipe Fittings :
    • 2205 Duplex Fittings
    • 2507 Duplex Steel Pipe Fittings
  • Duplex Steel Forged Fittings :
    • 2205 Duplex Steel Forged Fittings UNS S32205
    • 2507 Duplex Steel Forged Fittings UNS S31803
  • Duplex Steel Buttweld Fittings :
    • 2205 Duplex Steel Buttweld Fittings UNS S32205
    • 2507 Duplex Steel Buttweld Fittings UNS S31803


Duplex Steel S31803 Pipe Fittings Specification :

  • Standard - ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
  • Specifications - ASTM A815 / ASME SA815
  • Size - 1/2" to 24" NB to 24″NB in Sch 10S, 40S, 80S, 160s, XXS
  • Grade - UNS No. S31803, S32205, S32550, S32750, S32760.
  • Type - Seamless / Welded / Fabricated


Duplex Buttweld Pipe Fittings :

  • Duplex Buttweld Weldolet
  • Elbow LR / Long Radius Elbow
  • Duplex Buttweld 45 Deg Elbow
  • Duplex Buttweld Sockolet
  • Elbow SR / Short Radius Elbow
  • Duplex Buttweld 90 Deg Elbow
  • Duplex Buttweld Threadolet
  • Duplex Butt Weld Reduction Tee
  • Duplex Buttweld 180 Deg Elbow
  • Duplex Buttweld Nipolet
  • Duplex Buttweld Concentric Reduction
  • Duplex Buttweld Tee
  • Duplex Buttweld Latrolet
  • Duplex Buttweld Eccentric Reduction
  • Duplex Buttweld Barred Tee
  • Duplex Buttweld Elbolet
  • Duplex Buttweld Caps
  • Duplex Buttweld Equal Tee
  • Duplex Buttweld Sweepolet
  • Duplex Buttweld Lateral / Laterals
  • Duplex Buttweld Unequal Tee
  • Duplex Buttweld Insert Weldolet
  • Duplex Buttweld Swedge Nipple
  • Duplex Buttweld Reducing Tee
  • Duplex Buttweld Brazolet
  • Duplex Buttweld Pipe Nipples
  • Duplex Buttweld Concentric Reducer
  • Duplex Buttweld Coupolet
  • Duplex Buttweld Reducer
  • Duplex Buttweld Eccentric Reducer
  • Flexolet Duplex Buttweld
  • Duplex Buttweld Stubend
  • Duplex Buttweld Barrel Nipple
  • Duplex Buttweld Nipoflange
  • Duplex Buttweld Bend
  • Duplex Buttweld Swage Nipple
  • Duplex Buttweld Long Radius Bend
  • Duplex Buttweld End Cap
  • Duplex Buttweld Long Stubend
  • Duplex Buttweld Hot Bend
  • Duplex Buttweld Piggable bend
  • Duplex Buttweld Short Stubend


Duplex Forged Fittings - Type Thread Fittings :

  • Duplex Forged 90° Elbow
  • Duplex Forged Street Elbow
  • Duplex Forged Union (Male x Female)
  • Duplex Forged 45° Elbow
  • Duplex Forged Bull Plug
  • Duplex Forged Branch Outlet
  • Duplex Forged Tee
  • Duplex Forged Boss
  • Duplex Forged 90° Elbow Outlet
  • Duplex Forged Cross
  • Duplex Forged Swage Nipple
  • Duplex Forged 45° Lateral Tee
  • Duplex Forged Full Coupling
  • Duplex Forged Pipe Nipple
  • Duplex Forged Lateral Outlet
  • Duplex Forged Half Coupling
  • Duplex Forged Adapter
  • Duplex Forged Nipple Branch Outlet
  • Duplex Forged Reducing Coupling
  • Duplex Forged Hex Head Bushing
  • Duplex Forged Union
  • Duplex Forged Pipe Cap
  • Duplex Forged Hex Head Plug
  • Duplex Forged Hex Nipple
  • Duplex Forged Round Head Plug
  • Duplex Forged Square Head Plug
  • Flexolet Threaded


Duplex Forged Fittings - Type Duplex Socket Weld Fittings :

  • Duplex Socket Weld 90° Elbow
  • Duplex Socket Weld 45° Elbow
  • Duplex Socket Weld Tee
  • Duplex Socket Weld Cross
  • Duplex Socket Weld Full Coupling
  • Duplex Socket Weld Half Coupling
  • Duplex Socket Weld Pipe Cap
  • Duplex Socket Weld Union
  • Duplex Socket Weld Reducer Insert
  • Duplex Socket Weld Boss
  • Duplex Socket Weld Branch Outlet
  • Duplex Socket Weld 90° Elbow Outlet
  • Duplex Socket Weld 45° Lateral Tee
  • Duplex Socket Weld Lateral Outlet
  • Duplex Socket Weld Branch Outlet Duplex Butt Weld
  • Duplex Socket Weld 90° Elbow
  • Duplex Socket Weld Flexolet
  • Duplex Socket Weld Lateral Outlet Duplex Butt Weld
  • Duplex Socket Weld Nipple Branch Outlet Duplex Butt Weld


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  • Saf2205 Uns32750 Pipe Fittings Duplex Stainless Steel Reducer
  • Industrial Fittings Duplex Steel pipe fittings
  • Duplex Steel Pipe Fittings & But Weld Fittings
  • Duplex Steel pipe Fittings for exporting
  • Wide range of High quality Duplex Steel pipe fittings
  • High quality Duplex Steel pipe fittings
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  • Super duplex stainless steel pipe fittings
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  • Duplex Steel Pipe Fitting
  • 2205 Duplex Pipe Fittings
  • UNS S31803 Duplex Pipe Fittings
  • S32205 Duplex Pipe Fittings
  • Duplex Steel Pipe Fittings Manufacturer From India
  • Top quality Duplex Steel pipe fittings
  • Super Duplex Pipe Fittings
  • Super Duplex steel Butt-weld Fittings
  • Super duplex fittings
  • Special Duplex Steel Pipe Fittings
  • Duplex Steel Threaded Fittings
  • Uns 32750 Duplex Stainless Steel Pipe Fitttings Cross
  • ASTM 815 Duplex S31803/Stainless Steel Pipe Fittings Tee ANSI B16.9

Specifications

Duplex Steel ASTM / ASME SA 815 UNS S31803, S32205, S32550, S32750, S32760
Super Duplex Steel ASTM / ASME SA 815 UNS S32750, UNS S32950
Size 1/8
Wall Thickness Sch. 5S To Sch. XXS
Grade Duplex 2205 S31803 / S32205
Standard A815 / SA815, A182 / SA182


2205 Duplex Fittings

Stainless Steel Tradename UNS no. Werkstoff No. Density (g/cm3)
Duplex F51 / 2205, F60 S31803 / S32205 1.45 7.81

2507 Duplex Fittings

Standard Super Duplex 2507 / SAF 2507
UNS S32750 / S32950
Werkstoff Nr. 1.44
DIN 1.44
UNS S32750

Duplex Steel Pipe Fittings Specificatins

Duplex Fitting type Standards Designation
Butt weld Fitting ASTM A 815
Butt weld Fitting ASME SA 815
Forged Fitting ASTM A 182
Forged Fitting ASME SA 182

Common Duplex Steel Pipe Fittings Specification

  316T Designations Chemical Composition ASTM/EN Standards (Major elements only)   Welding
consumables
  % content is a maximum unless a range is indicated  
Duplex ASTM EN Trade Name C Mn Cr Ni Mo N Other
2304     0.03   21.5/24.5 3.0/5.5 0.1/0.6 0.05/0.2 0.05/0.6 Cu 2304/2205
      0.03   22.0/24.0 3.5/5.5 0.1/0.6 0.05/0.2 0.1/0.6 Cu  
2101     0.04 4 21 1.35 0.1 0.2    
2205     0.03   22.0/23.0 4.5/6.5 3.0/3.5 0.14/0.2   2205
      0.03   21.0/23.0 4.5/6.5 2.5/3.5 0.10/0.22    
2507     0.03   24.0/26.0 6.0/8.0 3.0/5.0 0.24/0.35 1.5/2.5 Cu 2507
  1.44 - 0.03   24.0/26.0 6.0/8.0 3.0/4.5 0.2/0.35 1.0/2.5 Cu  

Duplex Pipe Fittings Production Range

Specification ASTM A 815, ASME SA 815, ASTM A 182, ASME SA 182
ASTM / ASME SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61.
Type Seamless / Welded / Fabricated
Range ½”NB to 24″NB in Sch 10S, 40S, 80S, 160s, XXS
Dimensions ANSI/ASME B16.9, B16.28, MSS-SP-43

Buttweld Duplex Pipe Fittings, Seamless/ Welded 100% Radiography Tested

Products Size
Duplex Elbows – Long Radius Duplex Stub Ends Sizes 1/2″ – 48″
Duplex Elbows – Short Radius Duplex Crosses
Duplex Reducing Elbows Duplex Reducing Crosses
Duplex 45° Elbows Duplex 180° LR Return Bends
Duplex Tees Duplex 180° SR Return Bends
Duplex Fabricated Tees Duplex Pipe Bends / Piggable Bends
Duplex Reducers Duplex Couplings
Duplex Concentric Reducers Duplex Pipe Nipples
Duplex Eccentric Reducers Duplex Forged/Plate Cut Rings
Duplex 3D Elbow Duplex End Caps
Duplex 5D Elbow Duplex Forged / Plate Circles

Duplex Stainless Steel Pipe Fittings - Buttweld (B/W) Fitting

Material Size
(in mm)
Sch. & Swg. Specification Items
Seamless 15 NB
to
300 NB
Sch. 5
to
Sch. XXs
B/W
ANSI B16.9
Bend (Long & Short)
R=2D,3D,5D,10D Etc
Elbow (180°, 90° & 45°)
Tee (Equal & Unequal)
Reducer (Con & Ecc)
CAP
Stubend (Long & Short)
Nipple (Barrel)

Threaded and Socket Weld Duplex Pipe Fittings

Products Size
Duplex 90° Elbows Duplex Couplings Sizes 1/8″ – 4″
Pressure Ratings –
2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS
Duplex 45° Elbows Duplex Reducers
Duplex Street Elbows Duplex Inserts
Duplex Tees Duplex Caps
Duplex Crosses Duplex Unions

ASTM A789 / ASTM 790 UNS S32205 | UNS S2550 | UNS S31803 | UNS S32750 | UNS S32760

Super Duplex
Alloy Common Name Related Specification
    European UNS ASTM/ASME
Alloy 255 Ferralium 255 1.45 S32550 F61
Zeron 100 Zeron 100 1.45 S32760 F55
Alloy 2507 SAF 2507 1.44 S32750 F53
Duplex
Alloy Common Name Related Specifications
    European UNS ASTM/ASME
Alloy 2205 SAF 2205 1.45 S32205 F60
S31803 UNS 31803 1.45 S31803 F51



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