PROVIDING DUPLEX AND SUPER DUPLEX STEEL PRODUCTS SINCE 1975

Duplex Steel a type of stainless steel has a microstructure that is composed of Austenite and Ferrite phases. Since Duplex Steel has around 50% of each phase Austenite and Ferrite each of which has distinct atomic structures and physical characteristics, it can benefit from the features of both types of materials. Although the mixture is supposed to be 50:50, in reality, the ferrite percentage might range from 35 to 55% while still achieving desirable qualities. Within a ferrite matrix, the microstructure appears as austenite grains or islands.

Duplex Steel, Duplex Stainless Steel, Duplex Steel Grades, Duplex Steel Composition, Duplex Steel Properties, Duplex Material Grade, Duplex Stainless Steel Price.

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To take advantage of the desirable qualities of both austenitic and stainless steel, such as high strength, excellent corrosion resistance, resistance to stress corrosion cracking, and cost-effectiveness in comparison to more expensive super austenitic stainless steels and nickel-based alloys, duplex steels were developed.


Types of Duplex Stainless Steel

Duplex Steel Equivalent Material

USA France Germany Germany Italy Japan Russia Spain Sweden UK European Union
AISI AFNOR DIN 17006 W.N. 17007 UNI JIS GOST UNE SIS BSI EURONORM
2205 Z3CND22-05Az X2CrNiMoN22-5-3 1.4462 - 02Ch22N5AM2 - 2377 318S13 -

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If you are looking for best prices for Duplex Stainless Steel, Duplex Steel Material email us on info@duplexsteelalloys.com or call us on +91 9664408767

Duplex Stainless Steel ASTM Grades

Sheet / Plate Pipe Buttweld Fittings Flanges Forged Fittings Fasteners Bars
ASTM A240 ASTM A790 ASTM A815 ASTM A182 ASTM A182 ASTM A479 ASTM A276

Duplex Stainless Steel Chemical Composition

Element S31803 S32205
Carbon 0.030 0.030
Chromium 21.0-23.0 22.0-23.0
Nickel 4.5-6.5 4.5-6.5
Molybdenum 2.5-3.5 3.0-3.5
Manganese 2.00 2.00
Silicon 1.00 1.00
Nitrogen 0.08-0.20 0.14-0.20
Phosphorus 0.030 0.030
Sulfur 0.020 0.020

Duplex Stainless Steel Mechanical Properties


Yield strength
Rp0.2,
MPa
Tensile strength Rm,
MPa
Elongation
[%]
Hardness
[HB]
Impact, Charpy-V, -46ºC
[J]
Pre
BAR ≥ 450 650 – 880 ≥ 25 ≤ 270 ≥ 45 ≥ 34
PLATE CR (COIL) ≥ 500 700 – 950 ≥ 25 ≥ 45 ≥ 34
PLATE HR (COIL) ≥ 480 700 – 950 ≥ 25 ≥ 45 ≥ 34
PLATE (QUARTO) ≥ 480 680 – 840 ≥ 25 ≥ 45 ≥ 34

Duplex Steel Physical Property

Density Thermal Expansion Modulus of Elasticity Thermal Conductivity Electrical Resistivity
g/cm3 K Gpa W/m.k Ω.m
7.805 13.7*10-6 200 19.0 0.085*10-6

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