317LN Flanges
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We produce 317LN flanges,317 LN flanges,317LN Blind Flanges,317LN Welding Neck Flanges,317LN Slip On Flanges,317LN Socket Welding Flanges,317LN Lap joint Flanges,317LN Ring joint Flanges,317LN Slip-on flanges,317LN Weld Neck Flanges,317LN WN flanges,317LN LWN flanges, 317LN Long weld neck flanges,Nimonic 90 orifice flanges,317LN Spectacle blind Flanges,317 LN Spectacle flanges, 317 LN spacer ring flanges,317LN Swivel Ring Flanges,317LN WNRF Flanges,317LN SORF Flanges,317LN SWRF Flanges,317LN Threaded Flanges,317LN Ring Type Joint Flanges,317LN BLRF Flanges,317LN RTJ Flanges from china

The size of 317LN flanges that we could do is from 1/2” – 96”, DN15-DN2000

We could produce 317LN flanges with pressre from 150LB-2500LB or PN6-PN100

The face of 317LN flanges that we could do is in Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Also we could produce 317LN flanges as per the drawing of the clients

Following is the standard of 317LN flanges that we could do:

American standard of 317LN 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 317LN flanges in DIN 2630,2620,2632,2633,2634,2635,2636,2637,2638,2501(WN);


British standard of 317LN flanges in BS3293,BS4504,BS10

The Italy standard of 317 LN 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 317LN flanges in JIS B27620,

Korean Standard of 317LN flanges in KSB 1503,KSB 6216,KSB 2332,KSB 2333,KSD 3578,KSD 4308.

Australian standard of 317LN flanges in AS 4087,AS 2129,AS/NZS 4320.1

ISO standsard of 317LN flanges in ISO 7005-1,ISO 9624

Russian standard of 317LN flanges in GOST 12820,GOST 12821,GOST 12836,GOST 12820-80,GOST 12821-80,GOST 12836-80.

European standard of 317 LN flanges in EN1092-1

South african standard of 317LN flanges in SABS-1123/SANS-1123

As per surface treatment of 317 LN flange, we could do Anti-rust Oil;Black /Yellow Paint;Hot-dipped Galvanization as per the requirement of the clients

The material grade of 317 LN flanges is by forging as per the standard of ASTM B462.

We could do solution treatment, ageing treatment for 317LN flanges as per the requirement of the clients

317LN offers excellent corrosion resistance to organic, sulfuric and phosphoric acids.

The chemical composition of 317LN flanges is as follows


Content (%)













The mechanical property of 317LN flanges is as follows



Tensile  strength

≥590 MPa

Yield  strength

≥285 MPa

Poissons  ratio


Elongation  at break


In order to control the quanlity of 317LN flanges, our workshop has followsing inspection equipment:Impact testing machine ,Magnetic particle flaw detector ,Metallographic Microscope ,Portable Spectrometer ,Ultrasonic Flaw Detector ,Universal testing machine ,Hardness testing machine

We could supply material certificate of 317LN flanges  as per the standard of EN10204-3.1 or EN10204-3.2 of third party(like TUV,DNV,GL and so on)

Our 317LN flanges will be 100% Ultrasonic Inspection as per the forging parts UT Test standard of ASTM A 388 or EN102768.

Our 317LN flanges are widely used in many industries,such as Sanitary ,valve production,Gas technology,Heating technology,Welding / cutting technology,Construction industry,Soldering technology,Connecting technologyMeasurement technology,Pump production,Regulating / controlling technology,Air-conditioning technology,Automotive electrics,Musical instruments,Fire safetyDrive systems and so on

As per packing of 317LN flanges, we will use  Veneer Case or Plywood Case

Please send us the drawing of 317LN flanges, we are glad to quote the best price for your side.

Except 317LN flanges,we also could produce 317LN bars,317LN plates,317LN fasteners,317LN bolts,317LN pipe fittings,317LN pipes,317LN tubes,317LN springs