ASTM A350 LF2 Flanges Manufacturer

check ASME SA 350 GR LF2 Weld Neck Flange Dimensions, Carbon Steel A350 LF2 Flanges

ASTM A350 LF2 Flanges are available in welding or screw types. They connect pipes by either screwing or welding them together. Navstar Steel is a top manufacturer and supplier of ASME SA 350 GR LF2 Weld Neck Flanges, offering various sizes and types. These flanges are made from a blend of materials like carbon, silicon, manganese, phosphorus, sulfur, molybdenum, copper, chromium, nickel, vanadium, and niobium.

Manufacturer of A350 LF2 Class 1 Flange, A350 LF2 Blind Flange, Carbon Steel A350 LF2 Slip On Flanges Price List

The mechanical and physical properties of carbon steel come from its material composition. Carbon Steel A350 LF2 Flanges have a minimum tensile strength of 485 MPa and a minimum yield strength of 250 MPa. The material is also hard, with a Brinell hardness score of 197 HB. These flanges are available in two specification levels: class 1 and class 2.

The A350 LF2 Class 1 Flange is the most commonly used, with Class 2 being used for specific applications. These flanges can be heat treated to increase hardness using methods like normalizing and tempering. The A350 LF2 Blind Flange is designed to fully close a pipeline and can either be bolted for easy removal during maintenance or welded permanently. The Carbon Steel A350 LF2 Slip On Flanges are used with seamless pipes, allowing the pipe to slip into position for easier installation before welding or bolting. The ASTM A350 Grade LF2 Class 2 Pipe Flange serves similar purposes. Contact us for more information and product pricing.

Specification List of ASME SA 350 GR LF2 Weld Neck Flange

Size	1/2″ TO 4″
Range	15 NB TO 100 NB IN 3000 LBS, 6000 LBS, 9000 LBS
Grade	ASTM / ASME A105/ A105N/ A694 F42/46/52/56/60/65/70 / A350 LF3/ A350 LF2
Pressure Rating	2000#, 3000#, 6000#, 9000#
Class	150#, 300#, 400#, 600#, 900#, 1500# & 2500#.
Type	Socketweld Fittings, Screwed-Threaded Fittings
Form	Tee, Union, Full Coupling, Half Coupling,Elbow 45 Deg & 90 Deg, Swage Nipple, Cross, Cap, Plug Bush

Huge Stock of Sa350 Gr Lf2 Forged Flange, A350 Lf2 Killed Carbon Steel Flanges, view A350 Lf2 Carbon Steel Flanges Weight Chart

Weight Of Carbon Steel A350 LF2 Flanges

Standard	Class	Diameter	Bolt Circle Diameter	Number of Bolts	Bolt Size	Diameter of Bolt Hole
AS4087	PN14	95	67	4	M12	14
AS 2129 Flange	Table C	95	67	4	13	14
	Table D	95	67	4	13	14
	Table E	95	67	4	13	14
	Table F	95	67	4	13	14
	Table H	114	83	4	16	17
	Table J	114	83	4	16	17
ASTM B16.5	ASTM 150	89	60	4	13	16
	ASTM 300	95	67	4	13	16
	ASTM 600	95	67	4	13	16
	ASTM 900	121	83	4	19	22
	ASTM 1500	121	83	4	19	22
ISO 7005 (DIN) Flange	PN6	80	55	4	M10	11
	PN10	95	65	4	M12	14
	PN16	95	65	4	M12	14
	PN20	90	60.5	4	M14	16
	PN25	95	65	4	M12	14
	PN40	95	65	4	M12	14

A350 LF2 Blind Flange Thermal Properties

Properties	Metric	Imperial
Thermal expansion co-efficient (@0-100°C/32-212°F)	10.4 µm/m°C	5.78 µin/in°F
Thermal conductivity	21.6 W/mK	150 BTU in/hr.ft².°F

Check 18 inch 1500# A350 Lf2 Plate Flanges, Customized high quality Astm A350 Lf2 Class 1 And Class 2 Flange, ASME SA 350 Gr Lf2 Cl1 Flanges properties

Carbon Steel A350 LF2 Slip On Flanges Chemical Composition

Grade	C%	Mn%	Si%	S%	P%	Cr%	Ni%
LF1	0.30 max	0.6/1.35	.15/.30	.040 max	.035 max	0.30 max	0.40 max
Lf2	0.30 max	0.6/1.35	.15/.30	.040 max	.035 max	0.30 max	0.40 max
LF3	0.20 max	0.90	.20/.35	.040 max	.035 max	0.30 max	3.3/3.7

ASTM A350 Grade LF2 Class 2 Pipe Flange Mechanical Table

PROPERTIES	Imperial
TS Min psi (Mpa)	70,000 (485)
YS Min psi (Mpa)	36,000 (250)
EL (2″ Min)	22%
RA Min	30%
Hardness, Bhn	Max 197
-50ºF Charpy	Min Impact
Energy F t/Lb (J):-
Set of 3 Specimen*	15 (20)
For One Specimen	12 (16)

Sa350 Gr Lf2 Forged Flange Pressure Chart

TEMP °C	150	300	400	600	900	1500	2500
-29 TO 38	19.6	51.1	68.1	102.1	153.2	255.3	425.5
50	19.2	50.1	66.8	100.2	150.4	250.6	417.7
100	17.7	46.6	62.1	93.2	139.8	233	388.3
150	15.8	45.1	60.1	90.2	135.2	225.4	375.6
200	13.8	43.8	58.4	87.6	131.4	219	365
250	12.1	41.9	55.9	83.9	125.8	209.7	349.5
300	10.2	39.8	53.1	79.6	119.5	199.1	331.8
325	9.3	38.7	51.6	77.4	116.1	193.6	322.6
350	8.4	37.6	50.1	75.1	112.7	187.8	313
375	7.4	36.4	48.5	72.7	109.1	181.8	303.1
400	6.5	34.7	46.3	69.4	104.2	173.6	289.3
425	5.5	28.8	38.4	57.5	86.3	143.8	239.7
450	4.6	23	30.7	46	69	115	191.7
475	3.7	17.4	23.2	34.9	52.3	87.2	145.3
500	2.8	11.8	15.7	23.5	35.3	58.8	97.9
538	1.4	5.9	7.9	11.8	17.7	29.5	49.2
TEMP °C	150	300	400	600	900	1500	2500

A350 Lf2 Killed Carbon Steel Flanges Dimension

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)	ASME B1.20.1, Pipe Threads, General Purpose ASME B16.1, Cast Iron Flanges and Flanged Fittings Classes 25, 125 and 250 ASME B16.5, Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24 ASME B16.11, Forged Fittings, Socket Welding and Threaded ASME B16.25, Buttwelding Ends ASME B16.36, Orifice Flanges ASME B16.47, Large Diameter Steel Flanges NPS 26 Through NPS 60 ASME B31.1, Power Piping ASME B31.3, Process Piping ASME B46.1, Surface Texture (Surface Roughness, Waviness, and Lay)

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)

ASME B1.20.1, Pipe Threads, General Purpose
ASME B16.1, Cast Iron Flanges and Flanged Fittings Classes 25, 125 and 250
ASME B16.5, Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24
ASME B16.11, Forged Fittings, Socket Welding and Threaded
ASME B16.25, Buttwelding Ends
ASME B16.36, Orifice Flanges
ASME B16.47, Large Diameter Steel Flanges NPS 26 Through NPS 60
ASME B31.1, Power Piping
ASME B31.3, Process Piping
ASME B46.1, Surface Texture (Surface Roughness, Waviness, and Lay)

ASTM A350 LF2 Carbon Steel Socket Weld Forged Fittings

Nom. Pipe Size	Min. Socket Dia.	Nom. Bore Dia.	A	B	C	D	E	F	G	H	J	K	L	M	N	O	P
PRESSURE CLASS 3000
1/8	0.42	0.269	0.8	0.9	0.7	0.9	0.4	0.3	1.1	0.8	0.4	0.7
1/4	0.555	0.364	0.8	0.9	0.7	0.9	0.4	0.3	1.1	0.9	1.62	0.7	1.25	0.3	0.4	0.9	0.8
3/8	0.69	0.493	0.9	1.1	0.7	1.1	0.5	0.3	1.1	1.1	1.88	0.8	1.44	0.4	0.4	1.3	0.8
1/2	0.855	0.622	1.1	1.3	0.8	1.3	0.6	0.4	1.3	1.3	2.06	0.8	1.62	0.4	0.4	1.3	0.8
3/4	1.065	0.824	1.3	1.5	1	1.5	0.8	0.5	1.5	1.5	2.53	1	2	0.4	0.6	1.5	1
1	1.33	1.049	1.4	1.8	1.1	1.8	0.9	0.6	1.6	1.9	2.94	1.1	2.38	0.5	0.6	1.8	1
1 1/4	1.675	1.38	1.7	2.3	1.2	2.3	1.1	0.7	1.6	2.3	3.44	1.3	2.81	0.6	0.6	2.3	1.1
1 1/2	1.915	1.61	1.9	2.5	1.3	2.5	1.3	0.8	1.6	2.5	3.88	1.4	3.19	0.7	0.6	2.5	1.1
2	2.406	2.067	2.3	3.1	1.7	3.1	1.5	1	2.1	3	4.69	1.6	3.88	0.8	0.7	3.1	1.3
2 1/2	2.906	2.469	2.9	3.6	2	4	1.6	1.1	2.1	3.6	6.88	2.1	5.94	1.2	0.7	3.6	1.3
3	3.535	3.068	3.3	4.3	2.4	4.6	2.3	1.3	2.1	4.4	8.5	2.5	7.25	1.3	0.7	5.1	1.4
4	4.545	4.026	4.2	5.8	3.1	5.8	2.6	1.6	2.4	5.5	13.6	4	12.1	2.5	0.8	6.8	1.6
PRESSURE CLASS 6000
3/8	0.69	0.344	1.1	1.3	0.9	1.3	0.6	0.4	1.1	1.3	2.12	0.9	1.5	0.3	0.4	1.3	0.9
1/2	0.855	0.464	1.3	1.5	1	1.5	0.8	0.5	1.3	1.5	2.56	1	2	0.4	0.4	1.5	0.9
3/4	1.065	0.612	1.5	1.8	1.1	1.8	0.9	0.6	1.5	1.8	3	1.1	2.38	0.5	0.6	1.8	1.1
1	1.33	0.815	1.7	2.3	1.3	2.3	1.1	0.7	1.6	2.3	3.5	1.3	2.81	0.6	0.6	2.3	1.2
1 1/4	1.675	1.16	2	2.5	1.3	2.5	1.3	0.8	1.6	2.5	3.94	1.4	3.19	0.7	0.6	2.5	1.2
1 1/2	1.915	1.338	2.3	3.1	1.7	3.1	1.5	1	1.6	3	4.75	1.7	3.88	0.8	0.6	3.1	1.3
2	2.406	1.687	2.5	3.4	1.8	3.4	1.6	1.1	2.1	3.6	6.88	2.1	6	1.3	0.7	3.6	1.4
2 1/2	2.906	2.125	3.2	4	2	4	2.3	1.3	2.1	4.3	8.5	2.5	7.5	1.5	0.7	5.1	1.4
3	3.535	2.624	3.7	4.8	2.4	4.6	2.5	1.4	2.1	5	8.5	2.5	7.25	1.3	0.7	5.1	1.6
4	4.545	3.438	4.5	6	3.1	5.8	2.6	1.6	2.4	6.3	13.6	4	12.1	2.5	0.8	6.8	1.8

Price List of A350 Lf2 Carbon Steel Flanges

ASTM A350 LF2 Flanges Price Per Piece in India	ASME SA350 LF2 Flanges Price in INR
ASTM A350 LF2 CL1/CL2 Flanges	$200.00/ Piece
ASTM a350 lf2 steel flanges	$1.00-$500.00/ Piece
150# RF SCH 80 ASME B16.5 ASTM A350 LF2 CL 1 LTCS WN Flanges	$5.00-$2,000.00/ Piece
a350 LF2 wn rtj/orifice flanges	$1,200.00/ Piece

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