Weld Neck Flange
A weld neck flange is a type of steel flange designed to transfer stresses to the pipe to reduce high stress concentrations at the base of the flange. Compared with other types,weld neck flanges are know for their tapered hub and gentle transition from flange thickness to pipe wall thickness. They are deformation-resistant, and are normally used for high pressure,high or low temperature conditions.
Size
Weld neck flange:1/4"-160"
DN8-DN4000
Pressure
America Series:Class 150 ,Class 300, Class 600, Class 900A ,Class 1500,Class 2500.
Europe Series:PN2.5,PN6,PN10,PN16,PN25,PN40,PN63,PN100,PN160,PN250,PN320,PN400.
Flange Facing Types
America Series:Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ)
Europe Series:Type A(Flat Face),Type B(Raised Face),Type C(Tongue),Type D(Groove),Type E(Spigot),Type F(Recess),Type G(O-Ring Spigot),Type H(O-Ring Groove)
Material
Carbon steel: ASTM A105,ASTM A105N,GB 20,C22.8.
Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911
Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N
ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti
ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
Low temperature steel: ASTM/ASME A402 WPL 3-WPL 6
High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70
Standards
ASME ANSI B16.5,ASME ANSI B16.47.
API 605,API 6L.
MSS SP 44
CSA Z245.12
EN1092-1,EN1759-1.
DIN2630,DIN2631,DIN2632,DIN2633,DIN2634,DIN2635,DIN2636,DIN2637,DIN2638.
BS1560,BS 4504,BS 10.
AFNOR NF E29-200-1
ISO7005-1
AS2129
JIS B2220
UNI 2276. UNI 2277.UNI 2278 .UNI 6089 .UNI 6090
Industrial Processes
Die forging,Machining.
Application for weld neck flanges
Natural gas,chemical,petroleum,ship building,marine,paper making, metallurgy, electric, power, boiler , etc.
C&N Industrial group limited is a leading manufacturer of steel pipef itting, flange products in China With 10 years in pipeline fields both manufacturing and trading. We have been supplying high quality piping material to our customer all over the world.
Our production scope:
Butt weld Fittings:
Standard: ASME B16.9 16.28/MSS SP-43/DIN 2605/JIS B2311/ 2312
Elbows(45Deg, 90Deg, 180Deg), Tee(Equal&Reducing), Cross, Reducer, Cap, olet, etc
Forged fittings: THREADED/SOCKET WELD
ASME B16.11, BS3799, JIS B2316, MSS-SP-79, MSS-SP-83
ELBOW, TEE, CROSS, UNION, COUPLING, CAP, BOSS, BUSHING, OUTLET, INSERT
Flanges: ASME/ANSI/API JIS, DIN, EN/BS
Welding Neck, Slip on, Threaded, Socket Welding, Blind, Orifice,
We are also offering our customer a total soluation for the whole piping material packages
Which includes, stainless steel pipes, carbon steel pipes, valve, gasket, bolts etc.
For further information about our company and products, please visit our website, and please do not hesitste to drop us a mail for any inquiry.
