Metal-Tech Engineers-An ISO Certified Company

AN ISO 9001:2008 Certified Company

+91-9320211186

metaltech2008@gmail.com

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We engineer, manufacture and market Welding Neck Flange and high nickel alloys.

We manufacture & export world-class performance Welding Neck Flange

 

Welding Neck Flange produced in our Mumbai factory, carries a promise of quality and consistency. Metal-Tech Engineers continues to meet customers’ needs through global quality standards from original design to distribution. Metal-Tech Engineers manufactures to global standards. We are one of the leading importer, stockholder, suppliers & exporters dealing in Welding Neck Flange since 1990. When procuring raw materials to manufacture Welding Neck Flange, our primary responsibility is to ensure that same quality and consistency exists in our supply base.

Metal Tech is excellently equipped for the production of tailor-made, high-grade flanges. In our forging shop, an advanced, automatically controlled steel bar furnace with a length of over 12 m heats the raw material up to approx. 1,100°C before rings or flanges with an outside diameter of up to 2,800 mm are formed using our face plate bending machine.

Welding Neck Flange Specification

Size : 1/2"NB TO 60"NB IN
Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.

Available ASTM standard:

ASTM / ASME SB 564 / 160 / 472.
ASTM / ASME SB 61 / 62 / 151 / 152
ASTM / ASME A/SA 182 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61.
ASTM SA 240, ASTM A182
ASTM SA 182 F1/F5/F9/F11/F22/F91
ASTM A 105 Gr. F42/46/52/56/60/65/70
ASTM A350 LF2/A350 LF3

 

Dimensions Weld Neck Flanges ASME B16.5

weldingneck_flange_dimn

NPS 1/2 - O.D. 21.3

Class 150 300 400 600 900 1500 2500
Diameter - A 30 38 38 38 38 38 43
Diameter - D 90 95 95 95 120 120 135
Thickness - B 9.6 12.7 14.3 14.3 22.3 22.3 30.2
11.2 14.3 20.7 20.7 28.7 28.7 36.6
Diameter - G 35.1 35.1 35.1 35.1 35.1 35.1 35.1
Diameter - K 60.3 66.7 66.7 66.7 82.6 82.6 88.9
Height - H 46 51 52 52 60 60 73
47.6 52.6 58.4 58.4 66.4 66.4 79.4
Bolt Holes 4 4 4 4 4 4 4
Diameter - L 15.9 15.9 15.9 15.9 22.2 22.2 22.2
Stud Bolts Diameter x Length
Diameter (in) 1/2 1/2 1/2 1/2 3/4 3/4 3/4
Length (mm) 55 65 75 75 110 110 120
1/2 3/4 1 1¼ 1½ 2 2½ 3 3½ 4 5 6 8 10 12 14 16 18 20 24

--------------------------------------------------------------------------------- > NPS <------------------------------------------------------------------------------

Dimensional Tolerances of Welding Neck Flanges ASME B16.5

Outside Diameter
≤ 24 = 1.6 mm | > 24 = ± 3.2 mm		 Inside Diameter
≤ 10 = ± 0.8 mm | 12 thru 18 = 1.6 mm | ≥ 20 = + 3.2 mm / - 1.6 mm
Diameter of Contact Face
1.6 mm Raised Face = ± 0.8 mm
6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm		 Diameter of Hub at Base
≤ 24 = 1.6 mm | > 24 = ± 3.2 mm
Diameter of Hub at Point of Welding
≤ 5 = + 2.4 mm / - 0.8 mm | ≥ 6 = + 4.0 mm / - 0.8 mm		 Drilling
Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm
Eccentricity of Bolt Circle with Respect to Facing
≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max
Thickness
≤ 18 = + 3.2 mm / - 0 | ≥ 20 = + 4.8 mm / - 0		 Length thru Hub
≤ 10 = 1.6 mm | ≥ 12 = ± 3.2 mm

Notes
1. Dimensions are in millimeters unless otherwise indicated.
2. T = Nominal wall thickness of pipe. Bevel for Wall Thicknesses T from 5 mm to 22 mm inclusive.
3. The length of the stud bolt does not include the height of the chamfers (points).

 

Also see related products:

Welding Neck Flange Dimensions and Tolerances

Welding Neck Flange Packaging

Package details: wooden case, pallet or according to customer's requirement

We export to:

Exporter & Suppliers of Welding Neck Flange in Dubai, Saudi Arabia, Qatar, West Africa, Russia, Kuwait etc.

Welding Neck Flange Materials

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