DUPLEX STAINLESS STEEL

Duplex & Super Duplex Round Bars suppliers in Chennai

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Duplex Stainless Steel suppliers is the most widely used duplex (ferritic/austenitic) stainless steel grade. It finds applications due to both excellent corrosion resistance and high strength. The standard duplex S31803 composition has over the years been refined by many steel suppliers, and the resulting restricted composition range was endorsed as UNS S32205 in 1996. 

DSS material gives better guaranteed corrosion resistance, but for much of the Duplex S31803 currently produced also complies with Duplex S32205, Duplex Stainless Steel Suppliers in India. 2205 is not generally suitable for use at temperatures above 300ºC as it suffers from precipitation of brittle micro constituents, nor below -50ºC because of its ductile-to-brittle-transition.

GALLERY - DUPLEX STAINLESS STEEL

Duplex Stainless Steel Material Specification

Duplex SS Material GradeUNSDuplex Industry Specifications
Duplex 2205
22Cr		UNS S31803ASME SA-182 (F51), SA-240, SA-798, SA-790, SA-815
ASTM A182 (F51),A240, A276, A479, A789, A790, A815, A928,
A988
SAE J405
Duplex 2205
22Cr		UNS S32205ASME SA-182 (F60), SA-240, SA-798, SA-790, SA-815
ASTM A182 (F60), A240, A276, A479, A480, A798, A790,
A815, A928, A988
SAE J405
Duplex 2507UNS S32750ASTM A182 F53, A240, A276, A479, A789, A790, A815, A928, A988
SAE J405
 UNS S32760ASTM A182 F55, A240, A276, A314, A473, A479, A789, A790, A815, A928, A988
SAE J405
International identifiersASTM A182F51, SUS329J3L, STS329J3LTP, S31803, SS2377, AISI 318 LN, Z3CND22-05Az

Duplex Material Composition

Common
Name		UNS NoBS EN
No		Steel
Type		Typical Chemical Composition %0.2%
proof
strength
N/mm2
(min)
%CCrNiMoNCu
2304S323041.4362duplex0.01523.04.00.0550.13 400
2205S318031.4462duplex0.01522.05.53.00.14–450
2205S322051.4462duplex0.01522.55.53.30.17 450
255 (UR52N)S325201.4507super duplex0.01525.07.03-50.280.13550
2507S327501.4410super duplex0.01525.07.04.50.280.3550
Zeron 100S327601.4501super duplex0.01525.07.03.50.250.8550
SAF3207S33207–hyper duplex0.03317.54.00.500.75700

Duplex Steel Material Properties

GradeTensile Strength
ksi (min)		Yield Strength
0.2% ksi (min)		Elongation %Hardness (HB) MAX

Hardness (Rockwell B) MAX

Impact Energy, ft.-lbs.
Duplex 2205906525217  
Duplex 2304

87
(600)

58
(400)		2529331j 
Duplex 2507116 min.80 min.15 min.32 max. 74 min.
LDX 210194 ksi65 ksi30290 (max)  
Zeron 100109802528 HRC 

DUPLEX CORROSION RESISTANCE

Excellent general corrosion resistance; superior to Grade 316 in most environments. Excellent resistance to localized corrosion including intergranular, pitting and crevice corrosion; the CPT of 2205 is generally at least 35ºC. The grade is also resistant to chloride stress corrosion cracking (SCC) at temperatures of up to about 150ºC. Grade 2205 will often perform well in environments which cause premature failure of austenitic grades. It has better resistance to sea water then Grade 316.  

DUPLEX HEAT RESISTANCE

Although 2205 has good high temperature oxidation resistance, this grade – like other duplex steels – suffers from embrittlement if held for even short times at temperatures above 300ºC. If embrittled, this can only be rectified by a full solution annealing treatment. Duplex stainless steels are almost never used above 300ºC.

DUPLEX HEAT TREATMENT

Solution treatment (annealing) – heat to 1020ºC-1100ºC and cool rapidly. This grade cannot be hardened by thermal treatment, but does work harden.

Duplex steel equivalent

GradeUNSENW-NrDINAFNORSS
Duplex 2707 HDS32707–––––
Duplex 2507S327501.4410–X 2 CrNiMoN 25 7 4–2328
Duplex 2205S31803/ S322051.44621.4462X 2 CrNiMoN 22 5 3Z 2 CND 22-05-032377
Duplex 2304S323041.43621.4362X 2 CrNiN 23 4Z 2 CN 23-04AZ2327

Duplex steel temperature limits

GradeTemperature
Duplex 2707 HD1080-1120°C/ 1976-2048°F
Duplex 25071050-1125°C/ 1922-2057°F
Duplex 22051020-1100°C/ 1868-2012°F
Duplex 2304930-1050°C/ 1706-1922°F

Duplexsteel ASTM grades

Check below Duplex stainless steel grades in our stock

GradeSeamless and welded tube and pipeFlangesFittingsPlate, sheet and stripBarForgings
Duplex 2707 HDASTM A789; A790–––––
Duplex 2507ASTM A789; A790ASTM A182ASTM A182,
ASTM A815		ASTM A240
EN 10088-2		ASTM A479
EN 10088-3		ASTM A182
Duplex 2205ASTM A789; A790
NFA 49-217		ASTM A182ASTM A182,
ASTM A815		ASTM A240
EN 10088-2		ASTM A276
ASTM A479
EN 10088-3		ASTM A182
Duplex 2304ASTM A789; A790
EN 10216-5		––ASTM A240
EN 10088-2		EN 10088-3EN 10088-3*

* Forged billets

Pren number duplex steel

GradeTypePREN
1.40621220226.5
1.41622101LDX24.5-28.6
1.4362SAF 230423.1-29.2
1.4462SAF 220530.8-38.1
1.44102SAF 25072> 402
1.45012Zeron 1002> 402
1.45072Ferrinox 2552

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List of Duplex stainless steel price per kg in India

MaterialDuplex Steel Price per kg in IndiaDuplex Steel Price in USDDuplex Steel Price in UAE Dirham
Duplex stainless steel material price per kg in IndiaINR 780-900 / KgUSD $ 11-13 /KgAED 37-48 UAE Dirham
Duplex Stainless Steel price per kg in IndiaINR 350-400 / KgUSD $ 5-6 /KgAED 16-21 UAE Dirham
Duplex stainless steel material price per kg in IndiaINR 380-400 Per KgUSD $ 3-6 /KgAED 16-21 UAE Dirham
Duplex Stainless Steel material price per kg in IndiaINR 790-1000 / KgUSD $ 14-15 /KgAED 40-53 UAE Dirham
Duplex Stainless Steel price per kg in IndiaINR 430-700 / KgUSD $ 9-13 /KgAED 24-37 UAE Dirham
Duplex Steel price per kg in IndiaINR 330-350 / KgUSD $ 4-8 /KgAED 16-19 UAE Dirham
Duplex Steel price per kg in IndiaINR 290-350 / KgUSD $ 4-9 /KgAED 15-19 UAE Dirham
Duplex Steel manufacturers in Chennai. Stockist of Duplex Steel & Duplex SS Material. Duplex Steel Material in stock for sale. Duplex Material suppliers. Check Duplex Steel Price per kg in India
Duplex Stainless Steel manufacturers in India. Dealers of Duplex Steel Material in Mumbai, Duplex Stainless Steel suppliers in India, largest Duplex Steel stockist, Dealers & distributor of Duplex SS Material in Chennai Call: +91-9499949357