ASTM A350 LF2 Weld Neck Flange

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MOQ : 100 Pieces

ASTM A350 LF2 Weld Neck Flange Specification

Features
High Quality

Corrosion Resistant
Yes

Surface Finish
Polished

Grade
Multple Grades Available

Material
Carbon Steel

Standard
ANSI

Surface
Galvanized

Size
Various Sizes Available

ASTM A350 LF2 Weld Neck Flange Trade Information

Minimum Order Quantity
100 Pieces

Payment Terms
Cash in Advance (CID)

Supply Ability
5000 Pieces Per Month

Delivery Time
10 Days

Main Domestic Market
All India

About ASTM A350 LF2 Weld Neck Flange

Discover the new ASTM A350 LF2 Weld Neck Flangecrafted to be the paragon of engineering excellence. These splendiferous flanges are manufactured from high-quality carbon steel, offering valorous strength, corrosion resistance, and a polished, galvanized surface finish for superior longevity. Available in multiple grades and sizes, every flange meets the strict ANSI standard, making it an optimal choice for diverse pipelines. As a renowned exporter, manufacturer, supplier, and trader from India, we ensure instant checkout and rapid dispatch. Pick yours now to elevate your next project with confidence.

Versatility & Applications of ASTM A350 LF2 Weld Neck Flange

The ASTM A350 LF2 Weld Neck Flange stands at the forefront of piping solutions, designed for high-pressure and low-temperature applications. Its robust construction makes it ideal for use in refineries, petrochemical plants, power generation, and marine environments. With a secure weld-neck fit, it ensures a splendiferous seal, minimizing leakage. Suitable for use in corrosive and demanding conditions, it serves process lines, pipelines, and structural connections with remarkable reliability.

Export Market Coverage and Swift Handover

Our ASTM A350 LF2 Weld Neck Flanges are dispatched to a wide array of export markets, including North America, Europe, Asia, and the Middle East. With an impressive supply ability and coordinated logistics, we guarantee products are handed over swiftly to both international and domestic clients. In India, our main domestic market enjoys expedited handover, ensuring industries receive quality flanges on schedule for immediate integration and use.

Duplex Flanges Specification

Standards	ASTM A182 / ASME SA182
Dimensions	ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Size	1/2" (15 NB) to 48" (1200NB)
Class	150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Standard	ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Flange Face Types	Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Super Duplex Flange Dimensions

NPS (in.)	Duplex Steel Flange Dimensions
NPS (in.)	Dia. of Flange (in.)	No. of Bolts	Dia. of Bolts (in.)	Dia. of Bolt Holes (in.)	Bolt Circle (in.)
1/4	3-3/8	4	1/2	0.62	2-1/4
1/2	3-1/2	4	1/2	0.62	2-3/8
3/4	3-7/8	4	1/2	0.62	2-3/4
1	4-1/4	4	1/2	0.62	3-1/8
1-1/4	4-5/8	4	1/2	0.62	3-1/2
1-1/2	5	4	1/2	0.62	3-7/8
2	6	4	5/8	0.75	4-3/4
2-1/2	7	4	5/8	0.75	5-1/2
3	7-1/2	4	5/8	0.75	6
3-1/2	8-1/2	8	5/8	0.75	7
4	9	8	5/8	0.75	7-1/2
5	10	8	3/4	0.88	8-1/2
6	11	8	3/4	0.88	9-1/2
8	13-1/2	8	3/4	0.88	11-3/4
10	16	12	7/8	1	14-1/4
12	19	12	7/8	1	17
14	21	12	1	1.12	18-3/4
16	23-1/2	16	1	1.12	21-1/4
18	25	16	1-1/8	1.25	22-3/4
20	27-1/2	20	1-1/8	1.25	25
24	32	20	1-1/4	1.38	29-1/2

Duplex Flanges Weight Chart

Pipe Normal Diameter (inch)		Outer diameter Flange	Thicjness Of Flange Minimum	Diameter of Hub	Diameter of Raised Face	Length Hub.Y	Thread Length	Diameter of Bolt Circle	Diameter of Bolt Holes	Number of Bolts	Diameter of Bolts (inch)	KG	LB
1/2"	15	89.00	11.20	30.20	35.10	15.70	15.70	60.50	15.80	4	1/2"	0.4	0.9
3/4"	20	98.50	12.70	38.10	42.90	15.70	15.70	69.90	15.80	4	1/2"	0.7	1.5
1"	25	108.00	14.20	49.30	50.80	17.50	17.50	79.30	15.80	4	1/2"	0.8	1.8
1-1/4"	32	117.50	15.70	58.70	63.50	20.60	20.60	88.90	15.80	4	1/2"	1.2	2.6
1-1/2"	40	127.00	17.50	65.00	73.20	22.40	22.40	98.60	15.80	4	1/2"	1.5	3.3
2"	50	152.50	19.10	77.70	91.90	25.40	25.40	120.70	19.10	4	5/8"	2.3	5.1
2-1/2"	65	178.00	22.40	90.40	104.60	28.40	28.40	139.70	19.10	4	5/8"	3.7	8.1
3"	80	190.50	23.90	108.00	127.00	30.20	30.20	152.40	19.10	4	5/8"	4.1	9
3-1/2"	90	216.00	23.90	122.20	139.70	31.80	31.80	177.80	19.10	8	5/8"	5.1	11.2
4"	100	228.50	23.90	134.90	157.20	33.30	33.30	190.50	19.10	8	5/8"	5.9	13
5"	125	254.00	23.90	163.60	185.70	36.60	36.60	215.90	22.40	8	3/4"	7	15.4
6"	150	279.50	25.40	192.00	215.90	39.60	39.60	241.30	22.40	8	3/4"	8.4	18.5
8"	200	343.00	28.40	246.10	269.70	44.50	44.50	298.50	22.40	8	3/4"	13	28.6
10"	250	406.50	30.20	304.80	323.90	49.30	49.30	362.00	25.40	12	7/8"	18	39.5
12"	300	482.50	31.80	365.30	381.00	55.60	55.60	431.80	25.40	12	7/8"	29	64
14"	350	533.50	35.10	400.10	412.80	57.20	57.20	476.30	28.50	12	1"	39	86
16"	400	597.00	36.60	457.20	469.90	63.50	63.50	539.80	28.50	16	1"	47	103
18"	450	635.00	39.60	505.00	533.40	68.30	68.30	577.90	31.80	16	1 1/8"	57	126
20"	500	698.50	42.90	558.80	584.20	73.20	73.20	635.00	31.80	20	1 1/8"	76	167
24"	600	813.00	47.80	663.40	692.20	82.60	82.60	749.30	35.10	20	1 1/4"	97	214

Duplex Flange Pressure Rating Chart

ASME	Pressure Temperature Ratings For Duplex Steel Flanges
Temperature °F	Class 150	Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500
-20 to 100	275	720	960	1440	2160	3600	6000
200	230	600	800	1200	1800	3000	5000
300	205	540	720	1080	1620	2700	4500
400	190	495	660	995	1490	2485	4140
500	170	465	620	930	1395	2330	3880
600	140	435	580	875	1310	2185	3640
650	125	430	575	860	1290	2150	3580
700	110	425	565	850	1275	2125	3540
750	95	415	555	830	1245	2075	3460
800	80	405	540	805	1210	2015	3360
850	65	395	530	790	1190	1980	3300
900	50	390	520	780	1165	1945	3240
950	35	380	510	765	1145	1910	3180
1000	20	320	430	640	965	1605	2675
1050	20	310	410	615	925	1545	2570
1100	20	255	345	515	770	1285	2145
1150	20	200	265	400	595	995	1655
1200	20	155	205	310	465	770	1285
1250	20	115	150	225	340	565	945
1300	20	85	115	170	255	430	715
1350	20	60	80	125	185	310	515
1400	20	50	65	95	145	240	400
1450	15	35	45	70	105	170	285
1500	10	25	35	55	80	135	230

FAQs of ASTM A350 LF2 Weld Neck Flange:

Q: How does the ASTM A350 LF2 Weld Neck Flange benefit industrial projects?

A: This flange offers exceptional strength, corrosion resistance, and a polished, galvanized finish, making it perfect for high-demand industrial applications where durability and performance are critical.

Q: What process is followed to ensure the quality of these flanges?

A: Each ASTM A350 LF2 Weld Neck Flange is manufactured according to ANSI standards, with rigorous inspection and surface finishing procedures to guarantee high quality and performance.

Q: Where can these weld neck flanges be used?

A: They are ideal for installation in pipelines, refineries, petrochemical plants, power stations, and marine industries due to their robust construction and corrosion-resistant features.

Q: When is the best time to use these flanges over other types?

A: These flanges are particularly suitable when high strength, leak-proof joints, and corrosion resistance are required, such as in aggressive or high-pressure environments.

Q: What is the typical usage of an ASTM A350 LF2 Weld Neck Flange?

A: They are primarily used to join pipes in applications where minimal leakage and superior stress distribution are necessary, making them a staple in process and transport pipelines.

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