DUPLEX STEEL S31803 SORF FLANGES, READY STOCK OF DUPLEX S31803 FLANGES, MANUFACTURER OF ASTM A182 S31803 LAP JOINT FLANGES, S32205 DSS LONG WELD NECK FLANGES, DSS S32205 THREADED FLANGES SUPPLIER

Duplex Steel S31803 Slip On Flanges are resistant to polyphonic acid stress corrosion cracking, which is common in oil plants. After exposure to this temperature range, it has good intergranular corrosion resistance, and this grade defies oxidation up to 1500 Degree F and has increased creep and stress rupture characteristics. To regain optimal corrosion resistance, they must be water quenched or completely annealed after working. It is unresponsive to thermal treatment, whereas cold working can improve the hardness and weight of the steel. It is stabilised with columbium, or sometimes tantalum, in addition to its greater carbon concentration. In most cases, the carbon level allows for dual accreditation.

Duplex Steel S31803/S32205 Flanges Specifications

Size Chart1/2" (15 NB) to 48" (1200NB) DN10~DN5000
StandardsANSI/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
Pressure RatingClass 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Pressure Calculation in DIN6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
UNI6Bar 10Bar 16Bar 25Bar 40Bar
EN6Bar 10Bar 16Bar 25Bar 40Bar
CoatingOil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Most common typesForged / Threaded / Screwed / Plate
Test CertificatesEN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Production TechniqueForged, Heat treated and machined
Connect Type/ Flange Face TypeRaised 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

TestDirect-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
EquipmentPress machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Manufacturer of

ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
-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/S32205 Duplex Steel Flanges
The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276

Duplex Steel S31803/S32205 Flanges Chemical Composition

GradeCMnSiPSCrMoNiNFe
S318030.030 max2.00 max1.00 max0.030 max0.020 max22.0 – 23.03.0 – 3.54.50 – 6.500.14 – 0.2063.72 min
S322050.030 max2.00 max1.00 max0.030 max0.020 max21.0 – 23.02.50 – 3.504.50 – 6.500.8 – 0.2063.54 min

S31803/S32205 Duplex Steel Flanges Mechanical Properties

GradesDensity (g/cm 3)Density (lb/in 3)Melting Point (°C)Melting Point (°F)
S31803 / S322057.8050.2851420 – 14652588 – 2669

Weight Chart Of Duplex Steel S31803/S32205 Flanges

Pipe Normal Diam.O.D. Flange Thk. Of Flange Min Diam.
of
Hub 		Diameter of Raised Face Length Hub.YThread LengthDiam. 
of Bolt
Circle		Diam. 
of Bolt
Holes		Number
of Bolts		Diam. of
Bolts
(inch)		KGLB
inchdnOCXGYTBCBHBNBD
1/2"1589.0011.2030.2035.1015.7015.7060.5015.8041/2"0.40.9
3/4"2098.5012.7038.1042.9015.7015.7069.9015.8041/2"0.71.5
1"25108.0014.2049.3050.8017.5017.5079.3015.8041/2"0.81.8
1-1/4"32117.5015.7058.7063.5020.6020.6088.9015.8041/2"1.22.6
1-1/2"40127.0017.5065.0073.2022.4022.4098.6015.8041/2"1.53.3
2"50152.5019.1077.7091.9025.4025.40120.7019.1045/8"2.35.1
2-1/2"65178.0022.4090.40104.6028.4028.40139.7019.1045/8"3.78.1
3"80190.5023.90108.00127.0030.2030.20152.4019.1045/8"4.19
3-1/2"90216.0023.90122.20139.7031.8031.80177.8019.1085/8"5.111.2
4"100228.5023.90134.90157.2033.3033.30190.5019.1085/8"5.913
5"125254.0023.90163.60185.7036.6036.60215.9022.4083/4"715.4
6"150279.5025.40192.00215.9039.6039.60241.3022.4083/4"8.418.5
8"200343.0028.40246.10269.7044.5044.50298.5022.4083/4"1328.6
10"250406.5030.20304.80323.9049.3049.30362.0025.40127/8"1839.5
12"300482.5031.80365.30381.0055.6055.60431.8025.40127/8"2964
14"350533.5035.10400.10412.8057.2057.20476.3028.50121"3986
16"400597.0036.60457.20469.9063.5063.50539.8028.50161"47103
18"450635.0039.60505.00533.4068.3068.30577.9031.80161 1/8"57126
20"500698.5042.90558.80584.2073.2073.20635.0031.80201 1/8"76167
24"600813.0047.80663.40692.2082.6082.60749.3035.10201 1/4"97214

Applications:

Industry
Refineries90%
Oil and Gas Industry96%
Power Generation80%
Pharmaceutical Equipment85%
Pulp & Paper Industry88%