Manufacturer, Stockist & Exporter in Mumbai
Corrosion Resistant Duplex 2205 Supplier in India in Various Grades With MTC
Kanakratna Steelage Pvt. Ltd. offers high-quality Duplex 2205 products across India. We supply premium bars, plates, sheets, pipes, and flanges. Every product undergoes strict quality checks before final dispatch. Every dispatched lot includes valid heat numbers for tracking. We provide original EN 10204 3.1 certificates with orders. Kanakratna Steelage Pvt. Ltd. is a leading Duplex Stainless Steel Manufacturer in India. We operate two advanced manufacturing units for reliable supply. Our team ensures fast delivery and complete customer satisfaction.
We deliver products regularly to Pune, Nagpur, and Kolkata buyers. Our team also serves customers in Rajkot, Ahmedabad, and Bengaluru. We ensure smooth dispatches for industrial clients in Chennai. Export cargo sails smoothly to over twenty overseas markets worldwide. All international shipments leave directly from major Indian sea ports
900+Customers Served
20+Export Countries
5Continents Covered
25+Years In Business
01 · At A Glance
Scale Behind Our Duplex Stainless Steel Stock
850+ TonsYearly production capacity
20+ CountriesActive export dealer network
250+ EmployeesSkilled manufacturing workforce
NACE MR-01-75Sour-service qualified material
2+ UnitsIn-house manufacturing facilities
15+ MarketsServed across the globe
4 Forging MethodsPress, GFM, closed-die & rolling
EN 10204 3.1Mill test certificate as standard
Compliance & Capability
Certified, Equipped & Ready To Ship
ISO 9001:2015Cert. No. 22DQJH80
ISO 10002:2018Cert. No. ISO/CSCM/B1838
AQSR-PED 2014/68/EUCert. No. 16730
Importer-Exporter CodeIEC 0313008167
LEI Registered6488CR26Y9IM74U43J32
Forging Methods
- Press & Hammer Forging
- GFM Forging
- Closed Die Forging
- Ring & Bar Rolling
Factory Equipment
- MCT Machine
- Hydraulic Press Machine
- Forging Machine
Services
- Forging & Rolling
- Metal Heat Treatment
- Special Metals Testing
- Cutting & Welding
Raw material is sourced from world-class mills including Sandvik, Haynes International, VDM Metals and Special Metals Corporation.
Duplex Steel Piping Product Stockist in Mumbai At Factory Price, See Composition
Specification
Duplex Stainless Steel Specification
Indian purchase teams trust us as a premier Duplex Stainless Steel Supplier in India.
1.4462 Material Nitrogen Content
- N 0.14–0.20% in UNS S32205
- N 0.08–0.20% in UNS S31803
Duplex Material Hardness Limit
- 293 HBW maximum in ASTM A240
- 31 HRC maximum for UNS S32205 plate
Duplex 1.4462 Corrosion Behaviour
- High pitting and crevice corrosion resistance
- Resists chloride stress-corrosion cracking
- PREN 34 or higher for UNS S32205
Uns S31803 Sour-Service Reference
- NACE MR0175 / ISO 15156 governs sour duty
- Hardness caps depend on grade and edition
Duplex Stainless Steel Grades Magnetic Behaviour
- Ferrite content makes the grade magnetic
- Annealed 304 and 316 stay non-magnetic
2205 Duplex Stainless Steel Testing
- PMI and hardness check per lot
- Tensile test on request
- ASTM A923 test on request
2205 Stainless Steel Packing
- Wooden boxes and crates
- End caps on pipe and tube
- Custom packing on request
Duplex Steel Marking
- Grade and UNS number
- Heat number
- Size and ASTM standard
Duplex 2205 Mechanical Properties
- High tensile strength
- Excellent yield strength
- Good impact toughness
1.4462 Material Temperature Range
- Suitable for moderate-temperature service
- Low-temperature toughness
- Application-specific temperature limits
Duplex 1.4462 Available Product Forms
- Plates and sheets
- Pipes and tubes
- Bars, fittings and flanges
Uns S31803 Quality Documentation
- Mill Test Certificate (MTC)
- Heat number traceability
- Inspection reports on request
Types
Types of Duplex Stainless Steel
Stocked sizes make us a dependable Duplex Stainless Steel Stockist in India.
Duplex Pipe & Tube
- ASTM A790 / A789, ASME SA790 / SA789
- Seamless and welded supply
Duplex Steel Sheet & Plate
- ASTM A240 / ASME SA240
- Solution annealed condition
DSS Round Bar
- ASTM A276 / A479
- Solution annealed condition
Duplex Stainless Steel Flange
- ASTM A182 F51 / F60
- Forged flange to drawing
Duplex SS Pipe Fittings
- ASTM A815 WP S31803 / WP S32205
- Elbows, tees, reducers and caps
Duplex Fasteners
- ASTM A276 / A479 bar stock
- Bolts, nuts, studs and washers
Grades
Comparing Duplex 2205 with Lean and Super Duplex Grades
Process-plant shops source from a Duplex Stainless Steel Supplier in Bangalore.
01
Lean Duplex2101 (UNS S32101) and 2304 (UNS S32304), with lower nickel and molybdenum
02
Standard Duplex2205 (UNS S31803 / S32205), 22% chromium and 3% molybdenum, our core supply
03
Super Duplex2507 (UNS S32750) and Zeron 100 (UNS S32760), 25% chromium class
Duplex Stainless Steel From Our Mumbai Plant, Trusted For 25+ Years
Two units forge and roll duplex bars before they leave Mumbai.
Request Quote Now
Chemical Composition
Duplex Steel Chemical Composition
Chromium, nickel, molybdenum and nitrogen set the balance between ferrite and austenite.
UNS S32205 – Primary Elements
Cr22.0–23.0%Chromium
Ni4.5–6.5%Nickel
Mo3.0–3.5%Molybdenum
N0.14–0.20%Nitrogen
C0.030% maxCarbon
FeBalanceIron
UNS S32205 – Residual Elements (Max)
Mn2.00% maxManganese
Si1.00% maxSilicon
P0.030% maxPhosphorus
S0.020% maxSulphur
UNS S31803 – Where The Limits Differ
Cr21.0–23.0%Chromium
Mo2.5–3.5%Molybdenum
N0.08–0.20%Nitrogen
RestSame limitsNi, C, Mn, Si, P, S
Mechanical Properties
Duplex Stainless Steel Mechanical Properties
Minimum values for solution-annealed plate, sheet and strip under ASTM A240.
UNS S32205 (Duplex 2205)
Tensile Strength (min)655 MPa / 95 ksi
Yield Strength 0.2% (min)450 MPa / 65 ksi
Elongation (min)25%
Hardness (max)293 HBW / 31 HRC
UNS S31803 (Duplex 2205)
Tensile Strength (min)620 MPa / 90 ksi
Yield Strength 0.2% (min)450 MPa / 65 ksi
Elongation (min)25%
Hardness (max)293 HBW
Refer Duplex Material Density, Material Code and Properties
Material Equivalent
Duplex Material Equivalent
Use these cross-references when your drawing quotes a national or trade designation.
ASTM A182 Forgings
- F51 – UNS S31803
- F60 – UNS S32205
ASTM / ASME Products
- A240 / SA240 – Plate, Sheet
- A276 / SA276 – Bar
- A790 / SA790 – Pipe
- A182 / SA182 – Forgings
Also Known As, Also Searched As
SAF 2205
Alloy 2205
Stainless 2205
2205 Stainless Steel
Duplex SS 2205
F51 Duplex
1.4462 Material
S31803 Material
Duplex S31803
UNS31803
Alloy 2205 Duplex Stainless Steel
1.4462 Duplex Stainless Steel
Thermal Properties
Duplex Stainless Thermal Properties
Typical mill-datasheet values for solution-annealed Duplex 2205 bar, plate and pipe.
Mean Expansion, 20–100°C13.0 ×10-6/K
Mean Expansion, 20–200°C13.5 ×10-6/K
Mean Expansion, 20–300°C14.0 ×10-6/K
Service CeilingCommonly capped near 300°C
475°C EmbrittlementProlonged exposure near 475°C embrittles the ferrite
Sigma Phase RiskSlow cooling after hot work forms brittle phases
Physical Properties
Physical Properties Of Duplex Stainless
Typical mill-datasheet values for solution-annealed Duplex 2205 round bar and plate.
Density7.8 g/cm³ / 0.28 lb/in³
Material Code (UNS)S31803 and S32205
Material Code (EN & ASTM)EN 1.4462, ASTM A182 F51 / F60
Phase StructureAustenite and ferrite in roughly equal parts
Magnetic ResponseMagnetic, because of the ferrite phase
Weight Against 316Lighter at 7.8 against 8.0 g/cm³
Check 2205 Duplex Stainless Steel HSN Code and ASTM Grades
HSN Code
Duplex Stainless Steel HSN Code
Customs headings follow product form, not the duplex grade name itself.
Bars & RodsASTM A276 / A479 – HS 7222
Plate & Sheet, 600 mm or widerASTM A240 – HS 7219
Strip, under 600 mm wideASTM A240 – HS 7220
Seamless Pipe & TubeASTM A790 / A789 – HS 7304
Welded Pipe & TubeASTM A790 / A789 – HS 7306
Flanges & FittingsASTM A182 / A815 – HS 7307
Duplex Stainless Steel ASTM Grades We Supply To
ASTM A240
ASTM A276
ASTM A479
ASTM A789
ASTM A790
ASTM A182 F51 / F60
ASTM A815
ASTM A923 (test method)
ASTM A790 Duplex Pipe Exporter in India, Shipping To Port Klang, Malaysia
Port-ready packing makes us a trusted Duplex Stainless Steel Exporter worldwide.
Request Export Quote
Must Know Duplex Stainless Steel vs 316 Difference Here
Duplex vs 316
Duplex 2205 vs 316 Difference
Highlighted rows show duplex values; white rows show the 316 benchmark.
Yield & Tensile Strength
Duplex 2205450 MPa yield, 655 MPa tensile (min)
316 / 316L205 / 170 MPa yield, 515 / 485 MPa tensile (min)
Pitting Resistance (PREN)
Duplex 220534 or higher (UNS S32205)
316 / 316LAbout 24
Density & Expansion
Duplex 22057.8 g/cm³, 13.0 ×10-6/K (20–100°C)
316 / 316L8.0 g/cm³, higher expansion
Ductility & Hardness
Duplex 220525% elongation, 293 HBW max
316 / 316L40% elongation, 217 HBW max
Pitting Resistance
Duplex 2205 Pitting Resistance
Pitting index decides whether a duplex lot suits warm chloride service.
01
PREN Formula%Cr + 3.3 × %Mo + 16 × %N
02
UNS S32205 Floor22.0 + 3.3 × 3.0 + 16 × 0.14 = 34.1 at minimum limits
03
UNS S31803 Floor21.0 + 3.3 × 2.5 + 16 × 0.08 = 30.5 at minimum limits
04
Maximum LimitsBoth UNS numbers reach 37.8 at maximum limits
05
316 BenchmarkTypical PREN is about 24
Price Per Kg
Duplex Stainless Steel 2205 Price Per Kg
Plant buyers ask a Duplex Stainless Steel Supplier in Hyderabad for rates.
01
Alloy CostNickel and molybdenum market rates shift the base price
02
Product FormBar, plate, welded pipe and seamless pipe price differently
03
Size And WallHeavier sections and tight tolerances add conversion cost
04
Standard And TestsExtra tests such as ASTM A923 or 3.2 certification add charges
05
Quantity And CuttingLarger lots and fewer cuts lower the per-kg rate
06
Freight TermsFOB, CFR or CIF to Mombasa changes the landed figure
Fabrication
Guide to Duplex S31803 & 2205 Welding Parameters
Fabrication shops buy from a Duplex Stainless Steel Supplier in Pune.
1
Matching Filler
Use 2209-type filler, which carries extra nickel for phase balance.
2
Ferrite Balance
Check weld metal ferrite against the range your fabrication code permits.
3
Heat Input Control
Control heat input and interpass temperature to avoid embrittlement and sigma phase.
4
Post-Weld Treatment
Over-alloyed filler normally removes the need for post-weld heat treatment.
Codes & Toughness
Sour-Service & Impact Toughness Checks for Alloy 2205
Cold-climate projects require impact data from our Duplex Stainless Steel Supplier in Mumbai.
ASTM A923 Detection Methods
Method ASodium hydroxide etch test
Method BCharpy impact test at −40°C, 54 J minimum
Method CFerric chloride corrosion test
NORSOK Offshore Practice
Test temperature−46°C
Average energy45 J minimum
Single value35 J minimum
Sour-Service Reference
Governing textNACE MR0175 / ISO 15156
ScopeSour oil and gas production
Hardness capSet by grade and edition cited
Hot-Service Ceiling
Usual limitAbout 300°C
Cause475°C embrittlement of the ferrite
FabricationControl heat input and interpass temperature
Applications
Duplex Steel Applications
Refinery vendors depend on a Duplex Stainless Steel Supplier in Mangalore.
Oil & Gas Pipelines
Chemical Processing
Desalination Plants
Pulp & Paper Digesters
Pressure Vessels
Heat Exchangers
Storage Tanks
Marine & Offshore
Logistics
Delivery Estimate For Duplex Orders
Port and shipyard buyers contact a Duplex Stainless Steel Supplier in Vishakhapatnam.
Ex-Stock Dispatch
Cut lots leave our yard 2–5 days after your order confirmation.
Sea Freight
Full-container cargo reaches Gulf, African, American and Asian ports by sea.
Air Freight
Time-critical consignments fly through air cargo when ships are too slow.
Country-Specific ETA
Kenya 19 days, Singapore and Netherlands 8 days, and UAE 5 days.
Export Markets We Ship To
Saudi Arabia
UAE
Turkey
Canada
UK
Singapore
United States
Mexico
Thailand
Italy
Netherlands
Germany
Philippines
Malaysia
Uganda
Indonesia
South Africa
Vietnam
Venezuela
Kenya
Also Serving Across India
Mumbai
Ahmedabad
Bengaluru
Chennai
Pune
Ghaziabad
Gujarat
Delhi
Rajkot
Kolkata
Nagpur
ASTM A240 S32205 Supplier in Ahmedabad, EN 10204 3.1 Certified Per Heat
Order cut plate with chemistry and mechanicals printed on the certificate.
Get Supplier Quote
Transit Days By Destination
Middle East
UAE5 days
Europe & Africa
Netherlands8 days
Kenya19 days
Buyer Questions
Duplex Stainless Steel FAQs
What are duplex stainless steels?
Austenitic-ferritic stainless steels, roughly half ferrite, with high strength and chloride resistance.
What is the difference between duplex and 316 stainless steel?
Duplex 2205 offers over double the yield strength and better pitting resistance.
Is 304 a duplex stainless steel?
No, 304 is austenitic; duplex grades like 2205 combine austenite with ferrite.
What are the disadvantages of duplex stainless steel?
Limited to roughly 300°C service, harder to machine, and needs controlled welding.
What are the equivalent names for duplex 2205?
UNS S31803, UNS S32205, EN 1.4462, SAF 2205 and F51 are equivalents.
Singapore8 days
Indonesia9 days
Thailand10 days
Vietnam10 days
Philippines12 days