Duplex Steel & Engineering

Duplex Steel Manufacturer in India

Mumbai, India

Duplex Steel & Engineering

Year of establishment 2011
Total export experience (in Years) 11
Nature of Business Stockist
Third Party Inspection Yes
Custom Sizes Yes
Custom Packaging Yes
MTC Report Yes
Major clients in the Middle East Gasco, Saudi Aramco
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Duplex Steel Manufacturer in India

Duplex Material Specification

Duplex Steel UNS
  • S31803
  • S32205
Types of Duplex Flat products
  • Sheet
  • Plate
  • Coil
  • Strip
Types of Duplex Long products
  • Round bar
  • Hot rolled bar
  • Cold rolled or drawn bar
  • Blooms
  • Billets
Duplex Stainless Steel MTC
  • EN 10204 3.2
List of testing for Duplex Material QC
  • Corrosion Test
  • NACE Hardness
  • Ferrite Count
  • Metallographic Examination
  • Charpy V-Notch
Suitable environments
  • Chemical processing
  • Oil and gas
  • Marine
  • Pulp and paper
Suitable Acids and Liquid
  • Formic and Acetic acids
  • Inorganic acids
  • Nitric acid
  • Hydrochloric acid

Who they are?

Duplex Steel Manufacturer in India

Duplex Steel Manufacturer in India

Exporter of Duplex Steel Profiles in Mumbai

Exporter of Duplex Steel Profiles in Mumbai

Duplex 2205 Strips Stockist in India

Duplex 2205 Strips Stockist in India

Duplex Steel Manufacturer and Supplier in India

Stockist & Exporter of Duplex Steel Profiles in Mumbai

Duplex Steel Profiles

Duplex Steel Profiles

Check Reseller Price for Traders in Middle East Countries Dealing in Duplex 2205 Strips, Check Duplex Steel ASTM Grades and Composition

ASTM Grades for DSS

Form ASTM Grades of Duplex Steel Products
Pipe ASTM A790
Tube ASTM A789
Plate ASTM A240
Fittings ASTM A815
Flange ASTM A182
Bar ASTM A276
Bolts and Nuts ASTM A479

Duplex Stainless Steel Chemical Composition

Grade UNS En No. PREN Mn C Si Mo Ni N Cr
2205 S31803 1.4462 33–35 2 0.03 1 2.5–3.5 4.5–6.5 0.08–0.20 21.0–23.0
S32205 1.4462 35–36 2 0.03 1 3.0–3.5 4.5–6.5 0.14–0.20 22.0–23.0
Distributor of Duplex Material in India, Check Difference DSS Properties and Density in Kg/m3

Physical Properties of Duplex Steel

Grade Density (g/cm^3) Electrical Resistivity (Ω.m)
S31803/ S32205 7.805 0.85 x 10^-6

Duplex Mechanical Properties

Grade S31803 S32205
Tensile Strength 620 MPa 655 MPa
Yield Strength 450 MPa 450 MPa
Brinell hardness 290 290
Elastic Modulus 200 GPa 200 GPa
Elongation 25 % 20 %

Thermal Properties of Duplex Stainless Steel

Grade S31803 S32205
Thermal Conductivity 13–30 W/(m·K) 13–30 W/(m·K)
Specific Heat capacity 440–502 J/(kg·K) 440–502 J/(kg·K)
Thermal Expansion coefficient 1 x 10-5 /K 1 x 10-5 /K
Duplex Steel & Engg Co. Stock Wide Range of Flat and Long Products in India, Check Stock Size Range and Finish Type

Duplex Products Stock Range

Product Size Range
Pipe (ASME SA790) Seamless 4 – 219mm
Welded 5.0 – 1219.2 mm
Plate (ASME SA240) Cold rolled 0.5-6.4 mm
Hot rolled 3.0–10.0 mm
Fittings (ASME SA815) Welded fitting 1/2″ – 48″
Seamless fitting 1/2″ – 10″
Flange (ASME SA182) 1/8″ NB TO 24″ NB
Bar (ASME SA276) Round bar 3 – 450mm DIA
Hex bar 2 ~100mm
Flat bar
  • Thickness:- 2 ~100mm
  • Width:- 10 ~500mm
Angle bar 3 * 20 * 20 mm~12 * 100 * 100 mm
Square bar 4*4 mm~100*100 mm
Rectangles 33 x 30 mm to 295 x 1066 mm
Billet 1/2″ to 495mm DIA
Bolts and Nuts (ASME SA479) M3 – M56 | 3/6″ to 2″

Duplex Stainless Steel Finish Chart

Grinding Rough Polish
Black Turned
NO.4 Finish Centreless Ground
Bright Polished Matt Finish
BA Finish 2B, 2D, BA NO(8) Finish
1D, 2B, No.4, BA, 8K Finish Satin
Hairline Brush
Mirror Polished

A duplex steel forging company in india, check the list of forged material below

  • Flanges
  • Forged Fittings
  • Welding Outlet
  • Rings
  • Forged Bars

Duplex Steel & Engg Co is specialized in 2205 duplex stainless steel casting, check duplex steel casting grades:

ACI or Other names ASTM UNS number PREN A
CD3MCuN A890 J93373 40
CD4MCu, 1A A890 J93370 31
CD4MCuN, 1B A890/A995 J93372 34
CE8MN, 2A A890/A995 J93345 37
CD6MN, 3A A890/A995 J93371 35
CD3MN, 4A A890/A995 J92205 35
CE3MN, 5A A890/A995 J93404 41
CD3MWCuN 6A A890/A995 J93380 41

Duplex Steel Fabrication in Mumbai

This company has expertise in duplex steel fabrication in Mumbai. All welding and fabrication work is performed by skilled welders at the Duplex Steel & Engg factory. See few Duplex Steel Fabrication jobs completed for the many Projects in Saudi Arabia, Kuwait, Turkey, South Africa and Bahrain.

Duplex Steel Pipe Spool

Duplex Steel Pipe Spool, for a Saudi Arabia Project

Duplex Flanges Elbow

Duplex Flanges Elbow, Supplied in Bahrain

Duplex Puddle Flange

Duplex Puddle Flange, for Kuwait Project

Duplex Steel Pre-Fabricated Pipework

Duplex Steel Pre-Fabricated Pipework, Turkey

Piping Fabrication Work

Piping Fabrication Work, for a South Africa Company

Accreditations and Certifications

ISO 9001:2015

ISO 9001:2015

ISO 14001:2015

ISO 14001:2015

ISO 45001:2018

ISO 45001:2018

PED Certificate

PED Certificate

Photo Gallery

Duplex Steel & Engineering
Duplex Steel & Engineering
Duplex Steel & Engineering

Company Profile

Nature of Business Stockist
Import Export Code (IEC) 0313056641
Legal Status of firm Partnership


Contact Info

Contact Person Abhishek Kothari
Phone  +91 9892985589
Email sales@duplexsteel.in
Address Duplex Steel & Engineering
46/48, Ground Floor, Jamnadas Building, Islampura Street, Near Alankar Cinema, Mumbai – 400004, India