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Duplex Stainless Steel

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Duplex Stainless Steel Grades Chart
GRADES	UNS	WNR	Bar	Pipe	Tube	Sheet / plate	Fasteners	Pipe fittings	Forged fittings/ flanges
Duplex 2205	S32205/S31803	1.4462	A276/A479	A790	A789	A240	A193/A194	A815	A182 F51
Duplex 2304	S32304	1.4362	A276/A479	A790	A789	A240	A193/A194	A815	A182 F54
Duplex 329	S32900	1.4460	A276/A479	A790	A789	A240	A193/A194	A815	A182 F60
Lean Duplex 2101	S32101	1.4162	A276/A479	A790	A789	A240	A193/A194	A815	A182 F70
Duplex Steel Distributor in India, Offering Various Grades of Above Products

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Trusted Duplex Steel Supplier in India, Supply Piping Product With Different Sizes at Best Price in Mumbai

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850 +

Tons Yearly Production

15 +

Markets Served Globally

250 +

Employees

2 +

Manufacturing Units

Custom Duplex Forging Products Stockist in Mumbai Various Shapes With MTC EN 10204 3.1/ 3.2

Forged Bar

Forged Fasteners

Forgings

Forged Flanges

Pipe Fittings

Forged Metals

Stock and Supply Duplex Alloy Material For Chemical and Marine Industry With Third Party Inspection Report

Chemical Processing

Aerospace

Oil and Gas

Electrical Components

Marine Engineering

Heat Exchangers

Food and Beverage

Pollution and Waste

Our Products Has Approval Of

Kanakratna Steelage Pvt Ltd Project Reference List

Project Name	Kanakratna Steelage Pvt Ltd Supplied	Grades	Location	Year
Maeslantkering	Duplex Round Bar	Alloy 2205	Rotterdam, Netherlands	2025
Az-Zour North Power & Desalination Plant	Duplex Plate	Duplex 2205, Super Duplex 2507	Kuwait	2022
PT Badak LNG - Bontang	Duplex Pipe Fitting	UNS S31803, S32750 , S32760	East Kalimantan, Indonesia	2021
Sadara Petrochemicals	Duplex Flanges	Duplex 2205	Jubail , Saudi Arabia	2020
Niederaussem Power Station	Duplex Fasteners	UNS S31803	Bergheim, Germany	2023
Jebel Ali Power and Desalination Plant	Duplex Pipe	Alloy 2205	United Arab Emirates	2024
Garrison Crossing	Duplex Circle	Duplex 2205	Toronto, Canada	2022
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Refer to the Duplex Metal Composition and Mechanical Properties

Duplex Stainless Steel Chemical Composition
UNS designation	Common name or type	NA	EN	Mo	Cr	Ni	Cu	CA	Mn^	PREB	Other
First-generation duplex stainless steels
S31500		0.05-0.10	1.4424	2.7	18.5	4.9		0.03	1.2-2.0	27	1.7Si
S32404		-		2.2	21	6	1.4	0.04	2.0	28
S32900	3290	-	1.4480	1.5	26	4.5		0.08	1.0	31
Second-generation duplex stainless steels
"Lean" duplex
S32304	2304D	0.05-0.20	1.4362	0.3	23	4.0	0.3	0.03	2.5	26
S32101		0.20-0.25	1.4162	0.4	21	1.5	0.5	0.04	4.0-6.0	26
S32202		0.18-0.26	1.4062	0.4	22.5	2.2		0.03	2.0	27
S32001		0.05-0.17	1.4482	0.6	20	1.6		0.03	4.0-6.0	22
S82011		0.15-0.27		0.4	21	1.5		0.03	2.0-3.0	26
S82013		0.20-0.30		-	20	1	0.8	0.06	2.5-3.5	24
S82012		0.16-0.26	1.4635	0.3	19.5	1.2		0.05	2.0-4.0	25
S82122		0.15-0.20		0.6	21	2	1	0.03	2.0-4.0	25
Molybdenum-containing "lean" duplex
S82121		0.15-0.25		0.8	21.5	3		0.035	1.0-2.5	27
S32003		0.14-0.20		1.8	21.5	3.3		0.03	2.0	30
S82031		0.14-0.24	1.4637	1	21	3		0.05	2.5	27
S81921		0.14-0.20		1.5	21	3		0.03	2.0-4.0	27
S82441		0.20-0.30	1.4662	1.5	23.5	3.5		0.03	2.5-4.0	33
Standard duplex
S31260		0.10-0.30	1.4481	3	25	7	0.5	0.03	1.0	37	0.3W
S31803	2205D	0.08-0.20	1.4462	2.7	21	5.0		0.03	2.0	31
S31200		0.14-0.20	1.4460	1.7	25	6.0		0.03	2.0	32
S32950		0.15-0.35		1.5	26.5	4.8		0.03	2.0	34
S32205	2205D	0.14-0.20	1.4462	3	22	5.0		0.03	2.0	35
S32808		0.30-0.40		1	27	7		0.03	1.1	39	2.3W
Super duplex
S32520		0.20-0.35	1.4507	4	25	6.5	1	0.03	1.5		-
S32506		0.08-0.20		3	25	6	-	0.03	1.0		0.15W
S32550	255D		1.4507	3.5	25	6	2	0.04	1.5		0.10-0.25
“Hyper” duplex
S33207			1.4485	3.5	30	7	-	0.03	1.5	52	0.40-0.60
S32707		0.30-0.50	1.4658	4.8	27	6.5		0.03	1.5	50	1.0Co
Austenitic stainless steels
S30403	304LC	-	1.4307		18	8		0.03	2.0	20	0.10
S31603	316LC		1.4404	2	16	11	2.0	0.03	-	24	0.10

S31803 / S32205	Duplex Steel Mechanical Properties
	Tensile Strength	Yield Strength (0.2%Offset)	Elongation	Melting Point	Density
	Psi – 116000 , MPa – 800	Psi – 80000 , MPa – 550	15 %	1350 °C (2460 °F)	7.8 g/cm3

Type of Steel	Grade	Density (g/cm³)	Density (kg/m³)	Density (lb/in³)
Duplex Stainless Steel	2205	7.80	7800	0.282
Super Duplex Stainless Steel	2507	7.80	7800	0.282

Kanakratna Steelage Pvt Ltd Also Maintain Ex-Stock of Below Products With MTC

Monel Round Bars

Titanium Grade 2 Plate

Hastelloy C276 Flanges

Inconel 625 Circle

Inconel 600 Hex Bolts

Titanium Grade 2 Pipe

Hastelloy C276 Pipe Fittings

A286 Bolts

Buy Corrosion Resistant Duplex Stainless Steel Material Online With With Turning, Drilling and Milling Test

Duplex Stainless Steel Corrosion Rate Compare to Other Alloy
Solution, Temperature	Type 316L (S31603)	Type 304L (S30403)	(S32101)	Type 317L (S31703)	(S32003)	255 (S32550)	2205 (S32205)	2507 (S32750)
10% Sulfuric acid, Boiling	(16.13)	(16.81)		(7.49)	(6.57)	(1.02)	(5.26)
10% Sulfuric acid, Boiling	635	662	-	294	259	40	207	-
10% Sulfamic acid, Boiling	(3.16)	(1.3)		(2.11)	0.29		0.54
10% Sulfamic acid, Boiling	124	50	-	83.1	11.4	-	21.2	-
1% Hydrochloric acid, Boiling	(1.50)	(2.28)		(1.43)	(1.22)		(0.31)	(0.076)
1% Hydrochloric acid, Boiling	59.0	85	-	56.3	48.0	-	12.2	3
20% Phosphoric acid, Boiling	(<0.01)	(< 0.03)		(0.02)	(0.01)		(0.02)
20% Phosphoric acid, Boiling	0.2	< 1.0	-	0.7	0.39	-	0.8	-
65% Nitric acid, Boiling	(0.27)	(0.23)	(0.07)	(1.23)	(0.78)	(0.41)	(0.52)	(0.41)
65% Nitric acid, Boiling	22.3	8.9	2.7	48.4	30.7	16	20.6	16
80% Acetic acid, Boiling			(0.002)			(<0.003)	(0.003)	(0.020)
80% Acetic acid, Boiling	-	-	0.08	-	-	<0.1	0.1	0.8
20% Acetic acid, Boiling	(0.003)	(0.003)		(0.012)	(0.000)		0.002
20% Acetic acid, Boiling	0.12	0.1	-	0.48	0.00	-	0.1	-
45% Formic acid, Boiling	(0.59)			(0.46)	(0.38)		(0.01)
45% Formic acid, Boiling	23.4	-	-	18.3	15.0	-	0.5	-
50% Sodium hydroxide, Boiling	(1.97)	(1.80)		(0.83)		(0.05)	(0.61)
50% Sodium hydroxide, Boiling	77.6	71	-	32.8	-	7.6	23.9	-
10% Oxalic acid, Boiling	(1.23)		(1.58)	(1.19)	(0.18)		(0.13)
10% Oxalic acid, Boiling	48.4	-	62.2	46.8	7.1	-	5.1	-

Turning test results			Drilling test results				Milling and threading test
2205 (S32205)	V30 2 (mm/min)	V15 3 (mm/min)	2205 (S32205)	V1000 (mm/min)	Drill length at 15 m/min (m)	Metal removed1 (mm3 /min)	2205 (S32205)	V5 (mm/min)	Milling, tool service life1 (min)	Threading M6, number of holes at 15 m/min
	185	126		15	1	1450		115	8	446

Associated With Steel Producing Brand

Certification

With Over a Decade of Experience & Successful Growth, Kanakratna Steelage Pvt Ltd holds the Following Certification:

AQSR-PED

ISO 9001:2015

ISO 10002:2018

IEC Certificate

LEI Certificate

MASSMA

Udyam Registration

GST Registration

Refer DSS Max Operating Temperature and Comparison With Other Austenitic and Ferritic Grades

Max Operating Temperature
	Forta DX 2304		Forta DX 2205		Forta LDX 2101		Forta SDX 2507
	Temperature	Time	Temperature	Time	Temperature	Time	Temperature	Time
Base material	300 °C	up to several years indi- cated	275 °C	longer periods of time (t>5 years)	300 °C	up to several years indicated	250 °C	longer periods of time (t>5 years)
	325 °C	>3,000 h (historical data indicate the least sensitive duplex grade)	300 °C	12,000 h	325 °C		275 °C	up to several years
			325 °C	6,000 h
			350 °C	1,500 h
Weldments *)				MIG (2209 filler)
			275 °C	10,000 h (50% decrease at -40 °C)
		OT (weld) ≈ OT (base) - 25 °C *)

Compare With Some Austenitic and Ferritic Grades
Grade	2205	Zeron 100	DX2202	Ferrinox 255/	Uranus 2507Cu	430	2304	304	RDN 903
EN No/UNS	1.4462/S31803/S32205	1.4501/S32760	1.4062/ S32202	1.4507/S32520/S32550		1.4016/S43000	1.4362/S32304	1.4301/S30400	1.4482/S32001
Type	Duplex	Duplex	Duplex	Duplex		Ferritic	Duplex	Austenitic	Duplex
Typical PREN (%Cr + 3.3 x %Mo + 16 x %N)	35	41	27	41		18	26	19	22
Grade	441	6% Mo	316	444	2101 LDX	316L 2.5 Mo	2507	904L
EN No/UNS	1.4509/S43932	1.4547/S31254	1.4401/S31600	1.4521/S44400	1.4162/S32101	1.4435	1.4410/S32750	1.4539/N08904
Type	Ferritic	Austenitic	Austenitic	Ferritic	Duplex	Austenitic	Duplex	Austenitic
Typical PREN (%Cr + 3.3 x %Mo + 16 x %N)	19	44	24	24	26	26	43	34

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