Custom Forged WN Flange, CS ASTM A105N, 4 Inch, SCH STD, RF, 300 Class, B16.5, OEM Forging Factory

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ASME B16.5 Class 300 RF

Weld Neck Flange Dimensions

Size in Inch	Size in mm	Outer Diameter	Flange Thickness	Hub OD	Weld Neck OD	Welding Neck Length	Bore	RF Diameter	RF Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	95	12.7	38	21.3	51	Welding Neck bore is derived from the pipe schedule	34.9	2	66.7	1.6
3/4	20	115	14.3	48	26.7	56		42.9	2	82.6	1.6
1	25	125	15.9	54	33.4	60		50.8	2	88.9	1.6
1 1/4	32	135	17.5	64	42.2	64		63.5	2	98.4	1.6
1 1/2	40	155	19.1	70	48.3	67		73	2	114.3	1.6
2	50	165	20.7	84	60.3	68		92.1	2	127	1.6
2 1/2	65	190	23.9	100	73	75		104.8	2	149.2	1.6
3	80	210	27	117	88.9	78		127	2	168.3	1.6
3 1/2	90	230	28.6	133	101.6	79		139.7	2	184.2	1.6
4	100	255	30.2	146	114.3	84		157.2	2	200	1.6
5	125	280	33.4	178	141.3	97		185.7	2	235	1.6
6	150	320	35	206	168.3	97		215.9	2	269.9	1.6
8	200	380	39.7	260	219.1	110		269.9	2	330.2	1.6
10	250	445	46.1	321	273	116		323.8	2	387.4	1.6
12	300	520	49.3	375	323.8	129		381	2	450.8	1.6
14	350	585	52.4	425	355.6	141		412.8	2	514.4	1.6
16	400	650	55.6	483	406.4	144		469.9	2	571.5	1.6
18	450	710	58.8	533	457	157		533.4	2	628.6	1.6
20	500	775	62	587	508	160		584.2	2	685.8	1.6
24	600	915	68.3	702	610	167		692.2	2	812.8	1.6

The flange forging process generally consists of the following steps: selecting high-quality steel bars for cutting, heating, forming, and cooling after forging. The forging process methods include free forging, die forging, and membrane forging. During production, different forging methods are selected based on the quality of the forgings and the number of production batches.

A flange is a component that connects pipes to each other, used for connecting pipe ends; Also used is a flange at the inlet and outlet of the equipment, used for connecting two devices.

When using weld neck flanges, the following points should be noted:

1. Before installation, check whether there are obvious defects or damages on the surface of the WN flange and pipeline to avoid problems such as loose connections or leakage of liquid or gas.

2. When purchasing welding neck flanges, different materials, models, and other parameters should be selected according to the specific usage situation.

3. During installation, it is necessary to follow the corresponding specifications and requirements to avoid improper installation that may affect the effectiveness of use.

4. During use, regular inspections and maintenance should be carried out to promptly address issues and ensure the normal operation of the pipeline system.

Material:

Carbon Steel	ASTM A105, ASTM A350 LF1, ASTM A350 LF2, S235JR, P245GH, P250GH, P280GH, ASTM A694 F42, ASTM A694 F46, ASTM A694 F52, ASTM A694 F56, ASTM A694 F60, ASTM A694 F65, ASTM A694 F70, etc
Stainless Steel	ASTM A182 F304, ASTM A182 F304L, ASTM A182 F304H, ASTM A182 F316, ASTM A182 F316L, ASTM A182 F317, ASTM A182 F317L, ASTM A182 F321, ASTM A182 F310, ASTM A182 F347, etc.
Alloy Steel	ASTM A182 F1, ASTM A182 F5, ASTM A182 F9, ASTM A182 F11, ASTM A182 F22, ASTM A182 F91, etc.
Duplex and super duplex steel	ASTM A815 UNS S31803, ASTM A815 UNS S32205, ASTM A815 UNS S32750, ASTM A815 UNS S32760

Hot Tags : Weld Neck Flange Carbon Steel Flange ANSI B16.5 Flange Black Painting Flange A105 Weld Neck Flange CS Flange

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