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WN FLANGE-RF,CL600 ASTM A350 GR.LF2 CL.1 16" SCH60

Weld Neck Flange is flanges that designed to be joined to a piping system by butt welding This kind offlange include lots of specification, Weld neck Flange is expensive because of its long neck i

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Product Introduction

Weld Neck Flange is flanges that designed to be joined to a piping system by butt welding. This kind of flange include lots of specification, Weld neck Flange is expensive because of its long neck. it is preferred for high stress applications. The necks, or hubs, transmits stresses to the pipeline.

The gradual transition of thickness from the base of the hub to the wall thickness at the butt weld provides important reinforcement of the Weld Neck flange. The bore of Weld-Neck flange matches bore of the pipeline, reducing turbulen.

Material & Grades of Weld Neck Flanges (WNRF) :

Carbon Steel Weld Neck Flanges :

ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706 Low Temperature Carbon Steel Weld Neck Flanges : ASTM A350, LF2, LF3

Stainless Steel Weld Neck Flanges :

ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L

Duplex & Super Duplex Steel Weld Neck Flanges :

ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61

ASTM A350 Flange Datasheet

Chemical Composition

Mechanical Properties

Impact Test Temperature under ASTM A350 Flanges

Test Specimens by 10mm x 10mm

Grade	Test Temperature, ℉ [℃]
LF1	-20 [-29]
LF2 Class 1	-50 [-46]
LF2 Class 2	-0 [-18]
LF3, Classes 1 and 2	-150 [-101]
LF5, Classes 1 and 2	-75 [-59]
LF6, Classes 1 and 2	-60 [-51]
LF6 Class 3	0 [-18]
LF9	-100 [-73]
LF787 Class 2	-75 [-59]
LF787 Class 3	-100 [-73]

Impact test values: Charpy V-Notch Energy Requirements for specimens 10mm by 10mm.

Grade	Minimum Impact Value for Average of 3 specimens, ft-lbf [J]	Minimum Impact Value for One Specimen, ft-lbf [J]
LF1 and LF9	13 [18]	10 [14]
LF2 Class 1	15 [20]	12 [16]
LF3 Class 1	15 [20]	12 [16]
LF5 Class 1 and 2	15 [20]	12 [16]
LF787 Classes 2 and 3	15 [20]	12 [16]
LF6 Class 1	15 [20]	12 [16]
LF2 Class 2	20 [27]	15 [20]
LF3 Class 2	20 [27]	15 [20]
LF6 Classes 2 and 3	20 [27]	15 [20]