Alloy steel Weld Neck Flange in large quantity

Alloy steel Weld Neck Flange in large quantity

Bangdong Supply high quality flanges ,  Flanges do tests of MT , PMI etc .  Our Spectacle Blind Flange , Lap Joint Flange , API flanges , Blind Flange , Weld Neck Flange have been exported to world wide . 

Dimension comply with standard Asme B16.5 , for large size comply with ASME B16.47

Pressure:    
Class 150 to Class 2500

There are many different flange standards to be found worldwide. To allow easy functionality and interchangeability, these are designed to have standardised dimensions. Common world standards include ASME (USA), DIN (European), BS10 (British/Australian), and JIS/KS (Japanese/Korean).

 

Pipe flanges that are made to standards called out by ASME B16.5 or ASME B16.47, and MSS SP-44. They are typically made from forged materials and have machined surfaces. ASME B16.5 refers to nominal pipe sizes (NPS) from ½" to 24". B16.47 covers NPSs from 26" to 60". Each specification further delineates flanges into pressure classes: 150, 300, 400, 600, 900, 1500 and 2500 for B16.5, and B16.47 delineates its flanges into pressure classes 75, 150, 300, 400, 600, 900. However these classes do not correspond to maximum pressures in psi. Instead, the maximum pressure depends on the material of the flange and the temperature. For example, the maximum pressure for a Class 150 flange is 285 psi, and for a Class 300 Flange it is 740 psi (both are for ASTM A105 Carbon Steel and temperatures below 100F).

Flange dimensions are determined by the pipe size and the pressure class required for the application. Flanges are standardized according publications from organizations like ASME, MSS, API and others.

 

ASME/ANSI B16.5 flange provides

Flange Type :

Thread Flange

Blind Flange

Slip On Flange

Weld Neck Flange

Spectacle Blind Flange

Spacer & Spade

LWN Flange

Orifice Flange

flange dimensions for pipes ranging 1/2" to 24" - in classes ranging 150 to 2500.

·  Steel Pipe Dimensons - Schedule 40

· Steel Pipe Dimensions - Schedule 80

ASME B16.5 Flange Material : 

Carbon Steel: ASTM: SA105N/A105, ASTM SA350 LF2,etc
Stainless Steel: ASTM A182 F304/304L/316/316L, etc
Alloy Steel: ASTM A182 F1/F5/F9/F11/F22/F91, Etc.
Duplex stainless steel: ASTM A182 F51, etc
Super Duplex Stainless Steel: S32750/2507/F53/F55, UNS32760, etc
Nicke alloys: Nickel 200, Monel 400, Inconel 600/625, Incoloy 825/800,
Hastelloy C276, Hastelloy C276, Hastelloy B1/B2/B3, Alloy 20, etc
Cu-Ni: 90/10,70/30, etc


Standard: 
ASME B 16.5 /ANSI B 16.5
ASME B 16.47 Series A/ Series B
EN1092


Certificate:
EN10204 3.1B/3.2B

Packing:      
Wooden cases or pallets  


Flanges in stock :
Lap Joint Flange
Lap Joint Flange Stub End
Spectacle Blind Flange
Thread Flange
Blind Flange
Slip On Flange
Weld Neck Flange

 

Product Categories : Steel Flange > Weld Neck Flange