ASTM A790 S31803 Pipe Supplier
Multinox INC is one of the leading producers of Duplex Steel Pipes & Tubes in India. "Duplex” represents a group of stainless steels that are not completely austenitic, like 304 stainless, neither completely ferritic, like 430 stainless.
Duplex Alloy 2205 Pipes & Tubes is a primary grade for Duplex Stainless Steel used throughout the applications. UNS S31803 / S32205 / DIN EN 1.4462 are popular standards of Duplex Stainless Steel. The method of 2205 duplex stainless steel consists of austenite pools surrounded by a continuous ferrite phase.
Duplex Steel Seamless Pipes and Tubes have great imperviousness to consumption. Due to its high corrosion resistance, high return quality and weldability, Duplex Steel Pipes (UNS S31803) are used in a wide range of various enterprises and applications.
We Multinox INC are highly emphasize on client servicing and provide extraordinary value added services to them. Duplex steel is one of the most consumed grades of steel. It is used in regions where austenitic stainless steel is not suitable. We keep stock of large array Duplex Steel Electopolished Tubes in superb condition and inconsistent and welded channels frames for fare and neighbourhood reason as well as for taking after evaluations. Specialised in DUPLEX 2205 (S31803) / DUPLEX 2304 / SUPER DUPLEX 2507 (S32750) Please contact us today for your all duplex steel piping and tubing needs!
Available Forms & Types
Most Common
Round Bars
Cold drawn, centreless ground & polished. Used in shafts, fasteners, machined components.
- OD: 4mm to 500mm
- Bright / Polish / Black finish
- Length: 1–6 metres
Precision
Hex Bars
Across-flat 18mm–57mm. Ideal for bolt, nut & valve body machining applications.
- 18mm – 57mm A/F
- Cold drawn condition
- Non-magnetic grade
Structural
Square Bars
Used in structural fabrication, tooling and engineering. Custom sizes available.
- 18mm – 47mm
- Bright / Rough Turned
- Custom sizes on request
Wide Range
Flat Bars
Width ½" to 10", thickness 2mm to 150mm. Sheared & edged or hot-rolled condition.
- Width: ½" to 10"
- Thickness: 2–150mm
- Custom width available
Hollow
Hollow Bars
Seamless hollow bar for bushings, sleeves & valve bodies. Saves machining time.
- OD: 4mm to 100mm
- Various wall thickness
- Centreless ground
High Strength
Forged Bars
Hot forged for superior grain structure. Heavy-duty industrial and aerospace use.
- 15mm to 300mm
- Ultrasonic tested
- Rough turned finish
Specifications
| Specifications | ASTM A790 / ASTM A789 / ASTM A928 (As Per Grade) |
| Dimensions | ASTM, ASME, ANSI B36.10M, ANSI B36.19M |
| Pipe Size | 1/2" NB to 24" NB |
| Seamless Pipe Size | 1/2" NB to 8" NB |
| Welded Pipe Size | 6" NB to 24" NB |
| Pipe Type | Seamless, ERW, Welded, Fabricated, EFW |
| Schedule | SCH 5, SCH 10, SCH 20, SCH 30, SCH 40, STD, SCH 60, SCH 80, XS, SCH 120, SCH 140, SCH 160, XXS |
| Form | Round, Square, Rectangular, Hydraulic Pipe & Tube |
| Length | Single Random, Double Random & Cut Length |
| End | Plain End, Beveled End, Threaded End |
| Surface Finish | Annealed & Pickled (AP), Bright Annealed (BA), Polished, Mill Finish |
| Inspection & Testing | PMI Test, Hydrostatic Test, Eddy Current Test, Ultrasonic Test, Flattening Test, Flaring Test, Third Party Inspection |
| Test Certificate | MTC EN 10204 3.1, IBR Test Certificate, NABL Approved Lab Report, Third Party Inspection |
| Marking | Grade, Size, Heat No., Specification, Manufacturer's Logo |
| Packing | Plastic End Caps, Bundles, Wooden Boxes, Wooden Pallets, Export Worthy Packing |
Chemical Composition
C
0.030 Max
Carbon
Si
1.00 Max
Silicon
P
0.030 Max
Phosphorus
S
0.020 Max
Sulfur
Cr
21.0 – 23.0
Chromium
Mn
2.00 Max
Manganese
Mo
2.5 – 3.5
Molybdenum
Ni
4.5 – 6.5
Nickel
N
0.08 – 0.20
Nitrogen
Equivalent Grades
UNS
S31803
UNS Number
BS
318S13
Old British Standard
EN
1.4462
Euronorm Number
EN Name
X2CrNiMoN22-5-3
Euronorm Designation
JIS
SUS 329J3L
Japanese Standard
SS
2377
Swedish Standard
Mechanical Properties
621 MPa (Min)
Ultimate Tensile Strength
448 MPa (Min)
Yield Strength (0.2% Proof)
25% (Min)
Elongation (in 50 mm)
31 HRC (Max)
Hardness (Rockwell C)
293 HB (Max)
Hardness (Brinell)
Recent Export Deliveries
🇸🇦
Saudi Aramco Total
Al Jubail, Saudi Arabia
304 SS Round Bars, 50mm OD, ASTM A276
Delivered in 7 days
🇺🇸
Hess Corporation
New York City, USA
SS 304 Hex Bars, 40mm A/F, Cold Drawn
Delivered in 14 days
🇬🇧
Shell PLC
London, United Kingdom
304 SS Flat Bars, 100×20mm, Bright Finish
Delivered in 14 days
🇦🇪
ADNOC
Abu Dhabi, UAE
304 SS Square Bars, 40mm, Forged Grade
Delivered in 5 days
🇿🇦
Sasol Limited
Johannesburg, South Africa
SS 304 Hollow Bars, 80mm OD × 20mm wall
Delivered in 21 days
🇩🇪
BASF SE
Ludwigshafen, Germany
304 SS Round Bars 25–100mm, EN 10204 3.2
Delivered in 18 days
Availability of Duplex & Super Duplex Pipes
| Duplex 2205 Pipe | Lean Duplex 2101 Pipe |
| Duplex S31803 Pipe | ASTM A789 Pipe |
| Super Duplex 32750 Pipe | ASTM A928 Super Duplex 32760 Pipe |
Latest Prices of Pipes
Multinox INC offers Pipes at one of the most competitive prices in India. Request the latest Pipes Pricelist using the contact form here.