Duplex steel 31803 Forged Flanges

Forged Flanges 31803, forged flanges manufacturer in India, forged flanges suppliers in Mumbai, India

Ratna Exports is proud to supply and export high-quality 31803 Forged Flanges, made from Duplex Steel 31803. These flanges are well-regarded in various industries for their outstanding mechanical properties, particularly their excellent strength and resistance to corrosion. As Forged Flanges 31803 are made to withstand high pressure, they are the perfect option for demanding applications in the oil and gas, maritime engineering, and chemical processing industries.

31803 Forged Flanges are manufactured using Duplex Steel 31803, a material known for its balanced composition of austenite and ferrite phases. This unique composition gives the flanges a higher tensile strength compared to standard stainless steel, along with superior resistance to stress corrosion cracking, pitting, and crevice corrosion. These properties make them particularly suitable for use in harsh environments where they are exposed to aggressive chemicals and extreme conditions.

As a leading forged flanges manufacturer, we ensure that our Duplex Steel 31803 Forged Flanges meet the highest standards of quality and durability. The flanges are carefully forged, heat-treated, and machined to achieve precise dimensions and ensure optimal performance in various industrial applications. Additionally, our flanges offer excellent weldability, allowing for secure and leak-proof connections in piping systems.

Our 31803 Forged Flanges are thoroughly tested to ensure they meet all relevant industry standards, giving you the confidence that they will perform well under the most demanding conditions. As trusted forged flanges suppliers, we work closely with our clients to offer tailored solutions, ensuring that each product is perfectly suited to their specific application requirements.

Duplex steel 31803 Forged Flanges Specification

A182 S31803 Flange Size Chart	1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
Duplex steel S31803 Flange Standards	ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Duplex S31803 Flange Pressure Rating ANSI	Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
ASTM A182 S31803 Duplex Flanges Pressure Calculation in DIN	6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
ASME SA 182 S31803 Flange	5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
ASME SA182 S31803 Duplex steel Flange UNI	6Bar 10Bar 16Bar 25Bar 40Bar
A182 S31803 Flange EN	6Bar 10Bar 16Bar 25Bar 40Bar
Coating	Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
most typical types of ASTM A182 S31803 Duplex Flange	Forged / Threaded / Screwed / Plate
Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third-Party Inspection Report, etc
ASME SA182M Duplex S31803 Flange Production technique	Forged, Heat treated, and machined
A182 S31803 Flange Connect Type/ Flange Face Type	Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove
Special design	As per your drawing AS, ANSI, BS, DIN, and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations
ASME A182 Duplex S31803 Flange Test	Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI ultrasonic flaw detector, Magnetic particle detector
ASTM A182 Ferritic Stainless Steel S31803 Flange Equipment	Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine, etc.
Duplex S31803 Flange Origin	Indian / West Europe / Japan / USA / Korean
Manufacturer of Duplex steel ASTM A182 S31803 Flange	ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE, etc. ASTM A182 S31803 Flange: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange B.S: BS4504, BS3293, BS1560, BS10 AS 2129: Table D; Table E; Table H ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings ANSI: ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48 ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 American Standard (ANSI) German (DIN) British standard (BS) DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 ASTM A182 S31803 Duplex Flanges The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
ASME SA182M Duplex S31803 Flange Uses & application	Bitumen upgraders. Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids.

types of Duplex steel 31803 Forged Flanges

Duplex steel blind flange

Duplex steel lap joint flange

Duplex steel S31803 threaded flange

Duplex steel weld neck flange

Contact Ratna Exports today for a best offer & competitive quotation Of Duplex steel 31803 Forged Flanges

Chemical Composition Of Duplex steel 31803 Forged Flanges

Grade	Common Name	C%	Mn%	Si%	P%	S%	Cr%	Ni%	Mo%	N%
2205	S31803	0.030	2.00	1.00	0.030	0.020	21.0-23.0	4.5-6.5	2.5-3.5	0.08-0.20
2205	S32205	0.030	2.00	1.00	0.030	0.020	22.0-23.0	4.5-6.5	3.0-3.5	0.14-0.20

Types of Duplex steel 31803 Forged Flanges

Duplex Steel S32205 Industrial Flanges

ASME B16.5 Duplex Steel S31803 Plate Flanges

ASTM A182 S31803 Duplex Steel Pipe Flange

S31803 Forged Duplex Steel Flange

Duplex Steel S32205 Socket weld Flange

UNS S32205 Screwed Flanges

1.4462 SORF Flanges

UNS S31803 Threaded Flanges

Mechanical Properties Of Duplex steel 31803 Forged Flanges

Tensile strength	620MPa min	Density	7,805kg/m3
Yield strength	450MPa mi	Elastic modulus	200GPa

Physical Properties Of Duplex steel 31803 Forged Flanges

Elongation	25% min	Mean coefficient of thermal expansion
Brinell hardness	293 HB max	0-100oC	13.7µm/m/oC
Rockwell hardness	31 HR C max	0-315oC

Duplex Steel Uns S31803 Forged Fittings Equivalent Standard:

STANDARD	UNS	WERKSTOFF NR.
Duplex 2205	S31803	1.4462

Looking to buy Duplex steel 31803 Forged Flanges From a manufacturer in India?

Feel free to call or email us to explore how we can assist in growing your business. It would be our pleasure to collaborate with a valued client like you. Please Call On +91 9920228653 Or Mail Us On [email protected]

Other Grades Also Available:

Stainless Steel :

Grade: 304, 304L, 304H, 309, 309S, 316, 316L, 316H, 310, 310S, 317, 317L, 321, 347, 904L

Alloy 20:

Grade : WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91

Monel :

Grade: Monel 400, Monel K500, Monel R-405

Inconel :

Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718

Nickel :

Grade: Nickel 200, Nickel 201

Titanium :

Grade: Gr1, Gr2, Gr3, Gr5, Gr7, Gr11

Alloy Steel:

Grade: WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91

Carbon Steel :

Grade: WPB, WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70

Please note this is an approx Duplex steel 31803 Forged Flanges price in India. For final Duplex steel 31803 Forged Flanges price list please mail us.

Types Of Duplex Steel Uns S31803 Forged Fittings:

Duplex Steel Threaded UNS S31803 Pipe Fittings
Forged Threaded UNS S31803 Elbow
UNS S31803 Forged Threaded Equal & Unequal Tee
UNS S31803 Threaded Equal & Unequal Cross
UNS S31803 Threaded Half & Full Couplings
UNS S31803 Threaded Reducing Couplings
UNS S31803 Threaded Cap
UNS S31803 Threaded Reducing Insert
UNS S31803 Threaded Bushing
UNS S31803 Threaded Pipe Nipples
UNS S31803 Threaded Hex Nipples
UNS S31803 Threaded Plug
UNS S31803 Threaded Unions
UNS S31803 Duplex Steel Socket Weld Pipe Fittings
UNS S31803 Forged Socket Weld Elbow
UNS S31803 Forged Socket Weld Equal & Unequal Tee
UNS S31803 Socket Weld Equal & Unequal Cross
UNS S31803 Socket Weld Half & Full Couplings
UNS S31803 Socket Weld Reducing Couplings
UNS S31803 Socket Weld Cap
UNS S31803 Socket Weld Reducing Insert

Widest Stock Of Duplex Steel Forged Flanges 31803

Duplex Steel S32205 Industrial Flanges
ASME B16.5 Duplex Steel S31803 Plate Flanges
ASTM A182 S31803 Duplex Steel Pipe Flange
ASME SA182 S32205 Duplex Steel Flat Flanges
S31803 Forged Duplex Steel Flange
Duplex Steel S31803 Slip-On Flange Manufacturer
UNS S32205 Orifice Flanges
Duplex Steel S32205 Socket weld Flange Supplier
Duplex Steel UNS S31803 Blind Flanges
UNS S32205 Screwed Flanges
1.4462 SORF Flanges
UNS S31803 Threaded Flanges

Manufacturing Standards / Pressure Rating Of Duplex Steel Forged Flanges 31803

ASME/ANSI B 16.5	Blind Flange, High Hub Blind Flange, Slip Flange, Welding Neck Flange, Socket Weld Flange, Ring Type Joint Flange, Lap Joint Flange, Threaded Flange
PRESSURE CLASS	150, 300, 400, 600, 900, 1500, 2500
ASME/ANSI B 16.47	Blind Flange [Series A & B], Welding Neck Flange
PRESSURE CLASS	75, 150, 300, 400, 600, 900
ASME/ANSI B 16.36	Slip-on Flange, Threaded Flange, Welding Neck Flange,
PRESSURE CLASS	300, 400, 600, 900, 1500, 2500
BS 4504 SEC 3.1	Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange, Welding Neck Flange, Hubbed Slip Flange, Hubbed Threaded Flange, Lapped Pipe End Flange,
PRESSURE CLASS	PN 2.5 TO PN 40
BS 4504[PART 1]	Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded,
PRESSURE CLASS	PN 2.5 TO PN 400
BS 1560 BOSS	Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded,
PRESSURE CLASS	150, 300, 400, 600, 900, 1500, 2500
BS10	Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange
TABLE	D, E, F, H
DIN FLANGES	DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673
PRESSURE CLASS	PN 6 TO PN 100

Size Of Forged Flanges 31803 :

Normal Sizes In inch	Dimension	ASME B16.5 S31803 Duplex Steel Flanges Dimensional Sizes 1/2 inch. to 2 1/2 inch.
		Class 125 Class 150		Class 300		Class 400		Class 600		Class 900		Class 1500		Class 2500
		inch.	mm	inch.	millim, enter	inch	mm	inch.	mm	inch.	mm	inch.	mm	inch		mm
1/2	A	3 1/2	88.9	3 3/4	95.2	3 3/4	95.2	3 3/4	95.2	4 3/4	121	4 3/4	121	5 1/4	133.4
	b	7/16	11.1	9/16	14.3	9/16	14.3	9/16	14.3	7/8	22.2	7/8	22.2	1 3/16	30.2
	D2	1 3/8	34.9	1 3/8	34.9	1 3/8	34.9	1 3/8	34.9	1 3/8	34.9	1 3/8	34.9	1 3/8	34.9
	D1	2 3/8	60.3	2 5/8	66.7	2 5/8	66.7	2 5/8	66.7	3 1/4	82.6	3 1/4	82.6	3 1/2	88.9
	n	4	4	4	4	4	4	4	4	4	4	4	–	4	44
	d	5/8	15.9	5/8	15.9	5/8	15.9	5/8	15.9	7/8	22.2	7/8	22.2	7/8	22.2
3/4	A	3 7/8	98.4	4 5/8	117.5	4 5/8	117.5	4 5/8	117.5	5 1/8	130	5 1/8	130	5 1/2	139.7
	b	1/2	12.7	5/8	15.9	5/8	15.9	5/8	15.9	1	25.4	1	25.4	1 1/4	31.8
	D2	1 11/16	42.9	1 11/16	42.9	1 11/16	42.9	1 11/16	42.9	1 11/16	42.9	1 11/16	42.9	1 11/16	42.9
	D1	2 3/4	69.8	3 1/4	82.5	3 1/4	82.5	3 1/4	82.5	3 1/2	88.9	3 1/2	88.9	3 3/4	95.2
	n	4	4	4	4	4	4	4	4	4	4	4	–	4	44
	d	5/8	15.9	3/4	19	3/4	19	3/4	19	7/8	22.2	7/8	22.2	7/8	22.2
1	A	4 1/4	108	4 7/8	123.8	4 7/8	123.8	4 7/8	123.8	5 7/8	149.2	5 7/8	149.2	6 1/4	159
	b	9/16	14.3	11/16	17.5	11/16	17.5	11/16	17.5	1 1/8	28.6	1 1/8	28.6	1 3/8	34.9
	D2	2	50.8	2	50.8	2	50.8	2	50.8	2	50.8	2	50.8	2	50.8
	D1	3 1/8	79.4	3 1/2	88.9	3 1/2	88.9	3 1/2	88.9	4	102	4	102	4 1/4	108
	n	4	4	4	4	4	4	4	4	4	4	4	4	4	4
	d	5/8	15.9	3/4	19	3/4	19	3/4	19	1	25.4	1	25.4	1	25.4
1 1/4	A	4 5/8	117.5	5 1/4	133.4	5 1/4	133.4	5 1/4	133.4	6 1/4	159	6 1/4	159	7 1/4	184.2
	b	5/8	15.9	3/4	19	13/16	20.6	13/16	20.6	1 1/8	28.6	1 1/8	28.6	1 1/2	38.1
	D2	2 1/2	63.5	2 1/2	63.5	2 1/2	63.5	2 1/2	63.5	2 1/2	63.5	2 1/2	63.5	2 1/2	63.5
	D1	3 1/2	88.9	3 7/8	98.4	3 7/8	98.4	3 7/8	98.4	4 3/8	111	4 3/8	111	5 1/8	130
	n	4	4	4	4	4	4	4	4	4	4	4	4	4	4
	d	5/8	15.9	3/4	19	3/4	19	3/4	19	1	25.4	1	25.4	1 1/8	28.6
1 1/2	A	5	127	6 1/8	155.6	6 1/8	155.6	6 1/8	155.6	7	177.8	7	177.8	8	203
	b	11/16	17.5	13/16	20.6	7/8	22.2	7/8	22.2	1 1/4	31.8	1 1/4	31.8	1 3/4	44.5
	D2	2 7/8	73 98	2 7/8	73	2 7/8	73	2 7/8	73	2 7/8	73	2 7/8	73	2 7/8	73
	D1	3 7/8	4	4 1/2	114	4 1/2	114	4 1/2	114	4 7/8	124	4 7/8	124	5 3/4	146
	n	4	4	4	4	4	4	4	4	4	4	4	4	4	4
	d	5/8	. 15.9	7/8	22.2	7/8	22.2	7/8	22.2	1 1/8	28.6	1 1/8	28.6	1 1/4	31.8
2	A	6	152.4	6 1/2	165.1	6 1/2	165.1	6 1/2	165.1	8 1/2	215.9	8 1/2	215.9	9 1/4	234.9
	b	3/4	19	7/8	22.2	1	25.4	1	25.4	1 1/2	38.1	1 1/2	38.1	2	50.8
	D2	3 5/8	92.1	3 5/8	92.1	3 5/8	92.1	3 5/8	92.1	3 5/8	92.1	3 5/8	92.1	3 5/8	92.1
	D1	4 3/4	121	5	127	5	127	5	127	6 1/2	165.1	6 1/2	165.1	6 3/4	171
	n	4	4	8	8	8	8	8	8	8	8	8	8	8	8
	d	3/4	19	3/4	19	3/4	19	3/4	19	1	25.4	1	25.4	1 1/8	28.6
2 1/2	A	7	177.8	7 1/2	190.5	7 1/2	190.5	7 1/2	190.5	9 5/8	244	9 5/8	244	10 1/2	266.7
	b	7/8	22.2	1	25.4	1 1/8	28.6	1 1/8	28.6	1 5/8	41.3	1 5/8	41.3	2 1/4	57.2
	D2	4 1/8	104.8	4 1/8	104.8	4 1/8	104.8	4 1/8	104.8	4 1/8	105	4 1/8	105	4 1/8	105
	D1	5 1/2	139.7	5 7/8	149.2	5 7/8	149.2	5 7/8	149.2	7 1/2	190.5	7 1/2	190.5	7 3/4	197
	n	4	4	8	8	8	8	8	8	8	8	8	8	8	8
	d	3/4	19	7/8	22.2	7/8	22.2	7/8	22.2

Tests We Carry Out (Including Both Destructive And Non-Destructive):

Positive material recognition
An examination of mechanical properties such as tensile, elongation, and area reduction.
Large-scale test
Chemical examination-Spectro analysis
Firmness test
Pitting protection test
Small tests
X-ray test
Impact analysis
Eddy current examining
Hydrostatic analysis
Prompt test

Packing:

Packing is quite important, especially in the case of international shipments in which consignment passes through various channels to reach the ultimate destination, so we put special concern regarding packaging.

We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as

Shrink-wrapped

Carton boxes,

Wooden pallets,

Wooden boxes,

Wooden crates

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