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Honesty Metal 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 Nigeria, Australia, Malaysia, Egypt, South Africa, Tanzania, Kenya, Mozambique, Angola, Gabon Germany, Turkey, France, United Kingdom, Italy, Netherlands, Iran, Iraq, Saudi Arabia, United Arab Emirates, Iisrael, Jordan, Oman, Kuwait, Qatar, Bahrain, Bangladesh, China, Indonesia, South Korea, Pakistan, Philippines, Singapore, Sri Lanka, Thailand, Vietnam, Brazil, Colombia, Argentina & United States of America, Honesty Metal 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, Honesty Metal is ISO 9001:2008, ISO 14001, OHSAS 18001 Certified Company since 2006 & PED approved Manufacturer since 2008, Honesty Metal is India’s 6th largest Manufacturer, supplier & exporter of Duplex Steel Pipe fittings .
Infrastructure :
Honesty Metal 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. Now Honesty Metal. is INDIA’s largest Engineering & Forging Company related to Petro-Chemical and Oil & Gas Industry.
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.
Duplex Steel Pipe Fittings Specificatins
| 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″ NB TO 24″ NB. (Seamless & Welded) |
| Wall Thickness : | Sch. 5S To Sch. XXS |
| Also as per National & International Standard &Specification | |
| Grade | Specification |
|---|---|
| Duplex 2205 S31803 / S32205 | A815 / SA815, A182 / SA182 |
| 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 |
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|---|---|---|---|---|---|---|---|---|---|---|---|
| % content is a maximum unless a range is indicated | |||||||||||
| ASTM | EN | Trade Name | C | Mn | Cr | Ni | Mo | N | Other | ||
| Duplex |
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 |
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|
1.4362 |
0.03 |
22.0/24.0 |
3.5/5.5 |
0.1/0.6 |
0.05/0.2 |
0.1/0.6 Cu |
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|
2101 |
1.4162 |
0.04 |
4.0 |
21.0 |
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 |
|||||
|
1.4462 |
O.03 |
21.0/23.0 |
4.5/6.5 |
2.5/3.5 |
0.10/0.22 |
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|
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 |
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|
1.441 |
0.03 |
24.0/26.0 |
6.0/8.0 |
3.0/4.5 |
0.2/0.35 |
1.0/2.5 Cu |
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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 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 | |
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Duplex Stainless Steel Pipe Fittings – Buttweld (B/W) Fitting
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Sr. No.
|
Material
|
Size
(in mm) |
Sch. & Swg.
|
Specification
|
Items
|
|
1
|
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) |
High Pressure Forged Duplex Pipe Fittings
Threaded and Socket Weld Duplex Pipe Fittings
| Products | Size | |
| Duplex 90° Elbows | Duplex Couplings |
Sizes 1/8″ – 4″ Pressure Ratings – |
| Duplex 45° Elbows | Duplex Reducers | |
| Duplex Street Elbows | Duplex Inserts | |
| Duplex Tees | Duplex Caps | |
| Duplex Crosses | Duplex Unions | |
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
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 | 1.4507 | S32550 | F61 |
| Zeron 100 | Zeron 100 | 1.4501 | S32760 | F55 |
| Alloy 2507 | SAF 2507 | 1.4410 | S32750 | F53 |
| Duplex | ||||
| Alloy | Common Name | Related Specifications | ||
| European | UNS | ASTM/ASME | ||
| Alloy 2205 | SAF 2205 | 1.4462 | S32205 | F60 |
| S31803 | UNS 31803 | 1.4462 | S31803 | F51 |
Duplex Buttweld Pipe Fittings |
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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
Our Specialization in Below Duplex Steel Pipe Fittings
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2205 Duplex Steel Buttweld Fittings (UNS S31803)
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Super Duplex Stainless Steel Equivalent Grades and Other names :
- Super Duplex Steel S32750
- Duplex Steel S32760
- SAF 2207
- EN 1.4501
Duplex – S32205 Pipe Fittings
S32205 Pipe Fittings
Duplex stainless steels are in most cases, tougher than ferritic stainless steels. Strengths of duplex stainless steels can in some cases be double that for austenitic stainless steels.
Whilst duplex stainless steels are considered resistant to stress corrosion cracking, they are not as resistant to this form of attack as ferritic stainless steels. However, the corrosion resistance of the least resistant duplex stainless steels is greater than that for the most commonly used grades of stainless steels, i.e. 304 and 316
Duplex steels are also magnetic, a property that can be used to easily differentiate them from common austenitic grades of stainless.
Other useful information:
- Available Industrial Standard Sizes: 1/2″NB to 36″NB IN
- Standard Schedule: SCH40, STD, SCH80, XS, SCH20, SCH30, SCH60, SCH140, SCH160, SCH80, SCH120, XXS.
- Available Types: ERW / Seamless / Fabricated / Welded Type
- Materials used in construction: ASTM A 815 UNS NO S 32205, S 3180
- Test Certificate: Our products offered with Mill Test Certificate as per EN 10204 / 3.1B
| Buttweld Seamless and Welded Duplex Fittings | Size |
|---|---|
| 90° LR Elbows 90° SR Elbows 90° Reducing Elbows 45° Elbows Tees Reducing Tees Concentric Reducers Eccentric Reducers Caps Stub Ends Crosses Reducing Crosses 180° LR Return Bends 180° SR Return Bends Laterals Weldolets Swage Nipples Nipples Couplings Weld Rings Saddles |
Sizes 1/8″ – 36″ |
| Pressure Fitting Configurations | Size |
|---|---|
| 90° Elbows 45° Elbows Street Elbows Tees Crosses Couplings Reducers Inserts Caps Unions |
Sizes 1/8″ – 4″ |
| Other Fitting Configurations | Size |
|---|---|
| Laterals Bushings Plugs |
Sizes 1/8″ – 4″ |
Chemical Composition – S32205 Pipe Fittings
| Chemical Element | % Present |
|---|---|
| Carbon (C) | 0.0 – 0.03 |
| Chromium (Cr) | 22.00 – 23.00 |
| Manganese (Mn) | 0.0 – 2.00 |
| Silicon (Si) | 0.0 – 1.00 |
| Phosphorous (P) | 0.0 – 0.03 |
| Sulphur (S) | 0.0 – 0.02 |
| Nickel (Ni) | 4.50 – 6.50 |
| Nitrogen (N) | 0.14 – 0.20 |
| Molybdenum (Mo) | 3.00 – 3.50 |
| Iron (Fe) | Balance |
Duplex Steel Pipe Fittings Application
- Duplex Steel Pipe fittings Used in Pulp and paper manufacturing plants
- Duplex Steel Pipe fittings Used in Chemical processing equipment
- Duplex Steel Pipe fittings Used in Petrochemical processing equipment
- Duplex Steel Pipe fittings Used in Textile machinery and equipment
- Duplex Steel Pipe fittings Used in Vessels and tanks
- Duplex Steel Pipe fittings Used in desulfurization
- Duplex Steel Pipe fittings Used in Chemical procedures
- Duplex Steel Pipe fittings Used in Medical field
- Duplex Steel Pipe fittings Used in Pharmaceutical plants
- Duplex Steel Pipe fittings Used in Food processing plants
- Duplex Steel Pipe fittings Used in Aviation engine components
Duplex Steel Pipe Fittings Value Added Services
- Duplex Steel Pipe fittings Cutting
- Duplex Steel Pipe fittings Forming
- Duplex Steel Pipe fittings Bevelling
- Duplex Steel Pipe fittings Machining
- Duplex Steel Pipe fittings Heat Treatment
- Duplex Steel Pipe fittings Pickling
- Duplex Steel Pipe fittings Final Inspection
- Duplex Steel Pipe fittings Marking
Duplex Steel Pipe Fittings Application Industry
- Duplex Steel Pipe fittings Used In Fertilizers Industry
- Duplex Steel Pipe fittings Used In Aerospace Industry
- Duplex Steel Pipe fittings Used In Nuclear Power Plant Industry
- Duplex Steel Pipe fittings Used In Chemical Industry
- Duplex Steel Pipe fittings Used In Oil & Gas Industry
- Duplex Steel Pipe fittings Used In Refineries Industry
- Duplex Steel Pipe fittings Used In Petrochemical Industry
- Duplex Steel Pipe fittings Used In Paper Industry
Key Properties of Duplex Steel Pipe Fittings
- High corrosion resistance in tough environments
- Lower intergranular precipitation
- High resistance to pitting and crevice corrosion
Weldability
Duplex stainless steels Pipe Fittings have good weldability. All standard welding processes can be used. They are not quite as easily welded as the austenitic grades but low thermal expansion in duplex grades reduces distortion and residual stresses after welding.
Mechanical & Physical Properties – Duplex Steel Pipe Fittings
| Density | 7.8 g/cm3 |
| Melting Point | 1350 °C (2460 °F) |
| Tensile Strength | Psi – 116000 , MPa – 800 |
| Yield Strength (0.2%Offset) | Psi – 80000 , MPa – 550 |
| Elongation | 15 % |
Chemical Composition – Duplex Steel Pipe Fittings
| Ni | 6 – 8 |
| Cr | 24 – 26 |
| Fe | Balance |
| Mo | 3 – 5 |
| C | 0.030 max |
| N | 0.24 – 0.32 |
| Mn | 1.20 max |
| Cu | 0.50 max |
| Si | 0.80 max |
| P | 0.035 max |
| S | 0.020 max |