Class 400 weld neck flange

Class 400 weld neck flange

One of the most widely demanded products, that can suffice wide range of temperature and pressure conditions is class 400 weld neck flange. This is because of their pressure rating being under the class 400, making them an ideal use case for sufficing wide range of standards.

Check ASME b16.5 cl400 WNRF flanges dimensions and thickness chart

Class 400 weld neck flange specification


Class 400 Weld Neck Flange Specification

Pressure class Type Heat Treatment
Class 400 Weld Neck Flanges (WNRF)
  • Normalizing
  • Quenching Tempering
  • Annealing
Application Face finish Size
Petroleum
Chemical industry
Pharmaceutical
Shipbuilding
  • Stock Finish
  • Concentric Serrated
  • Spiral Serrated
  • Smooth Finish
1/2″ NB To 24″ NB
Types Of Manufacturing Class 400 weld neck forged flange Material Specification Types of Class 400 WN flange gasket face
  • Stamped
  • Casting
  • Forged
  • Plate
  • Titanium : ASTM B381 F2/ Gr F3/ Gr F5/ Gr F12
  • LTCS: ASTM A350 LF2/ LF3/ LF6
  • Nickel alloy: ASME SB564 Ni 200/ Ni 201
  • Carbon steel :
    • ASTM/ ASME SA105
    • ASME SA181 Class 60, and 70
    • ASTM A694 F42/ F46/ F52/ F56/ F60/ F65/ F70
  • Alloy Steel : ASME SA182 (most selling F1, F5, F9, F11), F12, F22, F91
  • CU Ni (Copper nickel) (for sea water):
    • Copper nickel 70/30
    • ASME/ ASTM B151
    • Copper Nickel 90/10, C7060T, EEMUA 234/3-6, WL 2.1972, CW352H, C70620
  • SS (Stainless Steel): ASTM A182 F304, 304L, F316, 316L, F310, F310S, F316Ti, F317L, F321, 321H, F347, F347H, F904L
  • Inconel: 600, 601, 617, 625, 625LCF, 686, 690, 601GC, 602CA, 603XL, 693, 740H, MA754, 751, 725, 706, 718, 718SPF, MA758, 783, X-750
  • Monel: Alloy 400/401, 404, R-405, 502, K-500
  • Hastelloy: C-276, C-2000, C, C-4, C-22, C-22HS, B-2, B, B-3, G-35, G-30, G-3, N, S, W, X
  • Duplex & Super duplex: F44 (UNS S31254), F51 (UNS S31803), F61 (UNS S32550), F60 (UNS S32205), ASME SA182 F53 (UNS S32750), F55 (UNS S32760),
  • Incoloy: Alloy 800, 800H, 800HT, 803, 825, 832, 908, A-286, 27-7MO, 864, 890, 903, 907, 028, 020, 945, 925, 926, 330, 25-6HN, DS, 909, 945X, MA956
  • Lap-Joint Face (LJF)
  • Ring-Joint Face (RJF)
  • Tongue and Groove Face (TGF)
  • Male/Female Face (MFF)
  • Raised face (RF)
  • Flat Face (FF)
Class 400 weld neck flange offered by listed manufactures at pipingmaterial.ae to meet your needs and standards Export Packaging Logistics
  • Ship with MTC Acc. to EN 10204/3.1
  • Quick Response within 24 Hours
  • Design / Modify Drawings for Free
  • Lowest price in UAE
  • Solution Treatment / Aging Treatment
  • Quotation with Valuable Data Sheet
  • Wooden Case
  • Plastic Bag
  • Or custom as required
  • By Air (for urgent demand)
  • By Sea

View 400 lb weld neck flange available material, pressure rating, and price per kg in Dubai

In the modern world, you would get the 400 LB weld neck flange dimensions within the range of 1/2″-24’’. This also provides customers with flexible options, for choosing accurate products to meet several industrial standards. But on the other hand, there are scenarios where customer need specific or custom class 400 weld neck flange dimensions. In such cases, it is very much advised for customers to approach listed suppliers & manufacturers, to get accurate and affording prices, with products being carefully tested. Or they can check for alternate grades, materials or products.

They can even approach other suppliers for the same. But be sure that the product complies with the ASME B16.5 material standard. On the other hand, one can also calculate weight for ANSI B16.5 class 400 welding neck flanges in the below mentioned formula:

  • W = 0.0246615*(A-TK)* TK*0.01. Here in this step, short pipe length is calculated, with Tk representing the mating pipe wall thickness.

In addition to this, the operating pressure working conditions for ASME B16.5 class 400 long weld neck flanges. Make sure that the working pressure conditions must be between 985-115 psi. Expose above or below this pressure range, might result in not-much accurate performance as expected, as under this pressure range, it offers good mechanical properties. Other than this, excellent corrosion resistance along with wide use case in temperature range between -20-1000°F.

Not only this, heat treatment for ASME B16.5 class 400 weld neck flange is also possible. But the temperature conditions for the same must be between 1904-2048°F.

Cut out all intermediaries and direct buy from manufacturers of ASME B16.5 class 400 WNRF flanges to save up to 40%

Quickly get pricing from genuine ANSI b16.5 400# welding neck flanges suppliers in the middle east and south Korea, cl 400 WN flange in conventional finishes, sizes, and weight with certification
400# weld neck flange manufacturers in UAE can supply to your specifications at great deal, check class 400 weld neck flange thickness chart

Class 400 WNRF flanges temperatures rating as per ASME SA182 F304/304L in PSI

Temperature Of Class 400 weld neck flange in °F Class 40
-20 to 100 960
200 800
300 720
400 660
500 620
600 580
650 575
700 565
800 540
900 520
1000 430
1100 345
1200 205
1300 115
1400 65
1500 35

 

CL400 WNRF flanges Weight in LBS

Pipe SizeWeight
( as per lbs)Wall Thickness

15 3 9/16
20 4 5/8
25 5 11/16
32 7 13/16
40 10 7/8
50 12 1
65 18 1 1/8
80 23 1 1/4
90 26 1 3/8
100 35 1 3/8
125 43 1 1/2
150 57 1 5/8
200 89 1 7/8
250 126 2 1/8
300 177 2 1/4
350 233 2 3/8
400 294 2 1/2
450 360 2 5/8
500 445 2 3/4
600 465 2 7/8

 

Number of Class 400 weld neck flange bolts

Size in Inch Size Of Hole Bolts Number Size Of Bolt In UNC
1/2 1/2 4 5/8
3/4 5/8 4 3/4
1 5/8 4 3/4
1 1/4 5/8 4 3/4
1 1/2 3/4 4 7/8
2 5/8 8 3/4
2 1/2 3/4 8 7/8
3 3/4 8 7/8
3 1/2 7/8 8 1
4 7/8 8 1
5 7/8 8 1
6 7/8 12 1
8 1 12 1 1/8
10 1 1/8 16 1 1/4
12 1 1/4 16 1 3/8
14 1 1/4 20 1 3/8
16 1 3/8 20 1 1/2
18 1 3/8 24 1 1/2
20 1 1/2 24 1 3/4
24 1 3/4 24 1 7/8

 

Assumed 400 LB weld neck flange import price and shipping time variations

Chile Venezuela Colombia
Estimated Shipping 45 days 45 days 45 days
Extra cost 5% 5% 5%
Ecuador Guyana Paraguay
Estimated Shipping 60 days 60 days 60 days
Extra cost 5% 5% 5%
Note: Also check online price list from the verified Class 400 weld neck flange manufacturers, stockist and suppliers listed on pipingmaterial.ae

Class 400 Weld Neck Flange dimensions


Class 400 Weld Neck Flange Dimensions