UNS S31603 Flanges
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We produce UNS S31603 flanges,S31603 flanges,UNS S31603 Blind Flanges,UNS S31603 Welding Neck Flanges,UNS S31603 Slip On Flanges,UNS S31603 Socket Welding Flanges,UNS S31603 Lap joint Flanges,UNS S31603 Ring joint Flanges,UNS S31603 Slip-on flanges,UNS S31603 Weld Neck Flanges,UNS S31603 WN flanges,UNS S31603 LWN flanges, UNS S31603 Long weld neck flanges,UNS S31603 orifice flanges,UNS S31603 Spectacle blind Flanges,S31603 Spectacle flanges, S31603 spacer ring flanges,UNS S31603 Swivel Ring Flanges,UNS S31603 WNRF Flanges,UNS S31603 SORF Flanges,UNS S31603 SWRF Flanges,UNS S31603 Threaded Flanges,UNS S31603 Ring Type Joint Flanges,UNS S31603 BLRF Flanges,UNS S31603 RTJ Flanges from china

The size of UNS S31603 flanges that we could do is from 1/2” – 96”, DN15-DN2000

We could produce UNS S31603 flanges with pressre from 150LB-2500LB or PN6-PN100

The face of UNS S31603 flanges that we could do is in Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Also we could produce UNS S31603 flanges as per the drawing of the clients

Following is the standard of UNS S31603 flanges that we could do:

American standard of UNS S31603 flanges in ANSI B16.5 ;ASME B16.47 Series A(MSS SP-44);ASME B16.47 Series B(API 605);ANSI B16.1,AWWA C207

Germany standard of UNS S31603 flanges in DIN 2630,2620,2632,2633,2634,2635,2636,2637,2638,2501(WN);


British standard of UNS S31603 flanges in BS3293,BS4504,BS10

The Italy standard of S31603 flanges in UNI27676-67,UNI27677-67,UNI27678-67,UNI6083-67,UNI6084-67,,UNI6088-67,,UNI6089-67,UNI27699-67,,UNI2300-67,UNI27680-67,,UNI27681-67,,UNI27682-67,,UNI27683-67

Janpanese standard of UNS S31603 flanges in JIS B27620,

Korean Standard of UNS S31603 flanges in KSB 1503,KSB 6216,KSB 2332,KSB 2333,KSD 3578,KSD 4308.

Australian standard of UNS S31603 flanges in AS 4087,AS 2129,AS/NZS 4320.1

ISO standsard of UNS S31603 flanges in ISO 7005-1,ISO 9624

Russian standard of UNS S31603 flanges in GOST 12820,GOST 12821,GOST 12836,GOST 12820-80,GOST 12821-80,GOST 12836-80.

European standard of S31603 flanges in EN1092-1

South african standard of UNS S31603 flanges in SABS-1123/SANS-1123

As per surface treatment of S31603 flange, we could do Anti-rust Oil;Black /Yellow Paint;Hot-dipped Galvanization as per the requirement of the clients

The material grade of S31603 flanges is by forging as per the standard of ASTM B462.

We will do following testing to control the quality of UNS S31603 Flanges:Chemical Analysis,Corrosion Test,Tensile, Hardness, Flattening, Flare, Flange and Reverse-bend tests,Eddy Current Testing,Hydrostatic Testing,Air under Press Test,IGC Test (Inter Granular Corrosion Test),Micro-Structure Analysis,Radiography Test,Ultrasonic Test,Liquid Penetrate Test

We could do solution treatment, ageing treatment for UNS S31603 flanges as per the requirement of the clients

UNS S31603 provides excellent elevated temperature tensile, creep and stress-rupture strengths, as well as outstanding formability and weldability.

The chemical composition of UNS S31603 flanges is as follows




0.03  max















The mechanical property of UNS S31603 flanges is as follows


Tensile Strength
PSI) min

Yield Strength
 0.2% Proof
PSI) min

 (% in
50mm) min


Rockwell B (HR B) max

Brinell (HB) max







We could supply material certificate of UNS S31603 flanges  as per the standard of EN10204-3.1 or EN10204-3.2 of third party(like TUV,DNV,GL and so on)

Our UNS S31603 flanges will be 100% Ultrasonic Inspection as per the forging parts UT Test standard of ASTM A 388 or EN102768.

Our UNS S31603 flanges are widely used in many industries,such as Flue gas scrubbers,Chlorination systems,Acid production and pickling systems,Outlet ducting and stack liners for power plants,Sulfur dioxide scrubbers,Pulp and paper bleach plants,Weld overlay of less corrosion resistant metals,Pesticide and other agrichemical production,Tubular heat exchangers

Plate heat exchangers,Nuclear fuel reprocessing,incineration scrubber systems and so on

Ask for our Delivery Guarantee for our S31603 flanges, and we will offer a cumulative rebate of 1% for the 1st week late, 2% for the 2nd week late, etc., to a maximum of 10%. For example, a 3 week late delivery will yield a rebate of 6%. We are so sure our long delivery will be on time, we back it up with a financial guarantee.

In order to export our UNS S31603 Flanges, we will do Packing in  No Fumigate or Fumigate Plywood/Wood Pallet or Case as per the requirement of our clients

Please send us the drawing of UNS S31603 flanges, we are glad to quote the best price for your side.

Except UNS S31603 flanges,we also could produce UNS S31603 bars,UNS S31603 plates,UNS S31603 fastener,UNS S31603 bolts,UNS S31603 fittings,UNS S31603 pipes,UNS S31603 tubes,UNS S31603 springs