ASTM A350 LF2 Flanges

SA350 Gr LF2 CL1 Blind Flange and Low Temperature Carbon Steel Flanges manufacturer in UAE


ASTM A350 LF2 Flanges

What Type Of ASTM A350 LF2 Flanges Do We Have?

Usually, the ASTM A350 LF2 Flanges are provided in a Normalised and Tempered form or a Quenched and Tempered state. Its defining characteristics are the moderate hardness and impact strength of the a350 grade lf2. As a result, a350 grade lf2 cl1 is widely employed in producing flanges and connections. In situations where corrosion resistance is not crucial, the a350 gr lf2 cl 1 is also utilized.
All ASTM a350 gr. lf2 class 1 cooled forgings must be annealed at the lowest value of 1100 °F. The SA 350 LF2 Class 1 should then be maintained at that temperature for at least 30 minutes.


SA 350 LF2 Class 1 vs. Class 2 Flanges: Which is Better?

The chemical makeup and mechanical characteristics of Low Temperature Carbon Steel Flanges Class 1 and Class 2 are identical. Class 1 or 2 in the ASME Codes' permissible stresses are equivalent. The lowest applicable temperature is the primary feature that sets Class 1 apart from Class 2. The minimum relevant values for LF2 Class 1 or Class 2 are -46°C and -18°C, respectively. The average Charpy V-notch tensile testing temperature is the minimum relevant temperature. The standard requirement for forged carbon steel or low alloy steel fittings for low-temperature applications is ASTM A350.
So class 2 is better as it has high mechanical properties.

Check Heat Treatment Of A350 LF2 Class 2 Weld Neck Flange, supplier of LTCS Flanges in Middle East as per ASME B16.5, EN 1092-1

General Information On Low-Temperature Carbon Steel Flanges

Due to their higher hardness, LTCS Flanges are typically more difficult to process than traditional austenitic stainless steel. But ASTM A350 LF2 RTJ Flanges have demonstrated good machining characteristics. Lean steel, like SA 350 LF2 CL1 and CL2 Flanges, typically provides a similar type of corrosion resistance. Still, thanks to its low molybdenum concentration, it performs better in oxidizing environments like nitric acid treatments.

LTCS Flanges Welding Procedure

Low-temperature carbon metal parts, or LTCS materials, have primarily been created for usage in low-temperature machinery, mainly welded pressure tanks.

View Advantages Of ASTM A350 LF2 Low Temperature Slip On Flange, best price of A350 LF2 Killed Carbon Steel Flanges in Dubai, Check Pressure-Temperature Rating & Chemical Composition



Specialized in manufacturing

ASTM A350 LF2 Flanges

ASTM A350 LF2 Flange, Also Called (Low Temperature Carbon Steel Flanges) Is Usually Used For Ship Building, oil And Gas Transport In The Cold Weather On -50℃ To 800℃.

Size

1/2 Inches To 48 Inches

Class

150 To 2500

Schedule

SCH 10S To SCH 80S

ASME

B16.5
ASTM A350 LF2 Carbon Steel Pipe Flanges


Heat Treatment Of A350 LF2 Flange



Supply Range Of A350 Lf2 Carbon Steel Flanges
Supply Range Of A350 Lf2 Carbon Steel Flanges
  • Grades : ASTM A350 Grade LF2/ LF3/ LF6/ LF9 CL 1, 2, 3
  • O.D. : 1/2'' to 24'' in ANSI B16.5, up to 60 Inch in ANSI B16.47
  • Wall Thickness : SCH 10 To 180 comply with ANSI B16.9
  • Pressure Class : Class 150 To 2500
  • ASME Standards : ASME B16.5, ASME B16.47 A & B, ASME B16.36, ASME B16.48
Low Temperature Carbon Steel Flanges Features
Low Temperature Carbon Steel Flanges Features
  • Environment friendly
  • Low Coast
  • Ductility
  • Safe to process
  • High strength
  • Easy to weld
Face Types Of LTCS Flanges
Face Types Of LTCS Flanges
  • Flat Face (FF)
  • Raised Face (RF)
  • Ring Type Joint (RTJ)
  • Tongue & Grooved (T & G)
  • Lap Joint
  • Male & Female (M & F)

ASTM A350 LF2 Material Specification


Specifications ASTM A350 LF2 Flanges
Transportation In Air & Ocean and Land
Available Packing Packing In Plywood Box And Plywood Pallet
Use In Marine & dredging
Sanitation
Process Instrumentation
Oil and Gas
Petrochemical/ Refinery/Chemical
Power etc.
Supporting Material For Flanges Gasket/ Ring Joint/ Flanges Bolts
Testing Hydrostatic testing machine
Magnetic particle detector
Direct-reading Spectrograph
UI trasonic flaw detector
Manufacturing Productivity 900 ton per month
Supply Ability 600 Ton Per Month
Class Class 150 to 2500. PN 2.5 to PN 250.
Equipment Pushing Machine
Press machine
electric bevelling machine
Face Type RF (Raised Face), RTJ (Ring Type Joint)
Brand Name Schulzmann
Certificate ISO
Payment Type L/C,T/T,D/P,Paypal
JIS Standard 5K/ 10K/ 16K 20K/ 30K/ 40K/ 63K
Size 1/2” to 24” (customized diameters: up to 60”.)
EN Standard 6Bar/ 10Bar/ 16Bar/ 25Bar/ 40Bar
Methods Of Forging Casting
Forging
Rolling
Cutting
DIN Standard PN6/ PN10/ PN16/ PN25/ PN40/ PN64


ASTM A350 LF2 Low Temperature Flange Price List


Description Price In US ($)
SOCKET WELD FLANGE, 1/2 INCH, 150#, A350 LF2 US $42.69 Per KG
FLANGE, 1/2 INCH, 300#, SCH160 WNRF, A350 LF2 ASME B16.5 US $31.64 Per KG
FLANGE, 1/2 INCH, 300#, SCH160 WNRF, A350 LF2 ASME B16.5 US $21.10 Per KG
FLANGE, 2 INCH, 150# BLIND RD A350 LF2 US $26.38 Per KG
A350 LF2, 2 INCH, WN 900#, RJ XS/80S (FLANGES) US $549.76 Per KG
FLANGE, 3/4 INCH, 300#, SCH 160 WNRF, A350 LF2 ASME B16.5 US $38.49 Per KG
FLANGE, 1/2 INCH, 300#, SCH 160 WNRF, A350 LF2 ASME B16.5 US $10.54 Per KG


Types Of Low Temperature Carbon Steel Flanges


SA350 LF2 Blind Flanges

SA350 LF2 Blind Flange

A350 Grade LF2 Slip On Flanges

A350 Grade LF2 Slip On Flange

ASTM A350 Gr Lf2 Class 1 Weld Neck Flanges

ASTM A350 Gr Lf2 Class 1 Weld Neck Flange

LTCS Socket Weld Flanges

LTCS Socket Weld Flanges

A350 LF2 Carbon Steel Plate Flanges

A350 LF2 Carbon Steel Plate Flanges

A350 LF2 LTCS Lap Joint Flanges

A350 LF2 LTCS Lap Joint Flange

Grade Lf2 CL 1 Threaded Flanges

Grade Lf2 CL 1 Threaded Flanges

A350 LF2 CS Orifice Flanges

A350 LF2 CS Orifice Flanges

ASME SA350 LF2 CL1 Spectacle Blind Flanges

ASME SA350 LF2 CL1 Spectacle Blind Flanges

ASTM A350 LF2 Low Temperature Flange

ASTM A350 LF2 Low Temperature Flange

LTCS Flanges

LTCS Flanges

Low Temperature Carbon Steel Flanges

Low Temperature Carbon Steel Flanges



ASTM A350 LF2 Chemical Composition


Chromium 0.30 Columbium 0.02
Manganese 0.60-1.05 Phosphorus 0.035
Silicon 0.15-0.30 Sulfur 0.040
Nickel 0.40
Carbon 0.30 Molybdenum 0.12
Copper 0.40 Vanadium 0.08


Other Grade Chemical composition

Grade C% Mn% Si% S% P% Cr% Ni%
A350 LF2 LF1 0.30 maximum 0.6/1.35 .15/.30 .040 maximum .035 maximum 0.30 maximum 0.40 maximum
A350 LF2 LF3 0.20 maximum 0.90 .20/.35 .040 maximum .035 maximum 0.30 maximum 3.3/3.7


ASTM A350 LF2 Class 1 Mechanical Properties


Yield Strength, minimum (ksi) 36
Elongation, minimum (%) 22
Tensile Strength, minimum (ksi) 70-95


Standard For SA350 LF2 LTCS Flanges




A350 LF2 Flange Dimensions


A350 LF2 Flange Dimensions

NPS
/strong>
O.D. of
flanges
Minimum
WT
Length Of Overall B.C. Number Holes O.D. of R/F
WNRF SORF
& SWRF
BLRF
Lapped Joint
O Q Y Diameter Number Diameter R
1/2 89 11.2 47.6 15.9 15.9 60.5 4 15 35
3/4 117 15.9 57.2 25.4 25.4 82.5 4 15 43
1 108 14.3 55.6 17.5 17.5 79.5 4 15 51
1.1/4 117 15.9 57.2 20.6 20.6 89.0 4 15 64
1.1/2 127 17.5 61.9 22.2 22.2 98.5 4 15 73
2 152 19.1 63.5 25.4 25.4 120.5 4 19 92
2.1/2 178 22.3 69.8 28.6 28.6 139.5 4 19 105
3 190 23.9 69.8 30.2 30.2 152.5 4 19 127
3.1/2 216 23.9 71.4 31.8 31.8 178.0 8 19 140
4 229 23.9 86.2 33.3 33.3 190.5 8 19 157
5 254 23.9 88.9 36.5 36.5 216.0 8 22 186
6 279 25.4 88.9 39.7 39.7 241.5 8 22 216
8 343 28.6 101.6 44.4 44.4 298.5 8 22 270
10 406 30.2 101.6 49.2 49.2 362.0 12 25 324
12 483 31.8 114.3 55.6 55.6 432.0 12 25 381
14 533 35.0 127.0 57.2 79.4 476.0 12 29 413
16 597 36.6 127.0 63.5 87.3 539.5 16 29 470
18 635 39.7 139.7 68.3 96.8 578.0 16 32 533
20 698 42.9 144.5 73.0 103.2 635.0 20 32 584
24 813 47.7 152.4 82.6 111.1 749.5 20 35 692


Class 150 To 2500 A350 LF2 Flange dimensions and weight Chart, one of the favourite manufacturer & exporter of EN 1092-2 LF2 Steel Socket Weld Flange in Qatar, Iran, Turkey and Kuwait


A350 LF2 Class 2 WN Flange Tolerance


Certificate thickness of Plate in millimeter Width in millimeter Length in millimeter
OD When O is 24 Inch or less. When O is over 24 Inch. ±0.06 Inches ±0.12 Inches ±1.6 (mm) ±3.2 (mm)
Contact Face Diameter 0.06″ (1.6 mm) R/F. 0.25″ (6.4 mm) R/F. ±0.03″ ±0.02″ ±0.8 (mm) ±0.5 (mm)
Dia. of Hub at Point of Welding Normal Pipe Size 5 and same Normal Pipe Size 6 and larger. +0.09″, -0.03″ +0.16″, -0.03″ +2.4 (mm), -0.8(mm) +4.0 (mm), -0.8 (mm)
ID Normal Pipe Size 10, 12, 18, 20 and larger. +0.03″ +0.06″ +0.12″, -0.06″ +0.8 mm +1.6 mm +3.2 mm, -1.6 mm
Dia. of Hub at Base Hub Base is 24 Inches or less. Hub Base is over 24 Inches. +0.06″ +0.12″ +1.6 (mm) +3.2 (mm)
Thickness NPS 18 and same NPS 20 and larger. +0.12″ +0.19″ +3.2 (millimeter) +4.8 (millimeter)
Facings and Drilling B.C. dia. Bolt Hole Spacing ±0.06″ ±0.03″ ±1.6 mm ±0.8 mm
Eccentricity of B.C. and Facing Normal Pipe Size 2 1/2 and smaller. Normal Pipe Size 3 and larger. ±0.03″ ±0.06″ ±0.8 mm ±1.6 mm
Length Through Hub Normal Pipe Size 10 and smaller. Normal Pipe Size 12 and larger. ±0.06″ ±0.12″ ±1.6 (mm) ±3.2 (mm)

LTCS Flanges Weight Chart In KG


CLASS NPS Slip On Flange Threaded Flange Socket Weld Flange Lap Joint Flange Blind Flange Weld Neck Flange
Class 150 Flange ½ 1 1 2 1 2 2
¾ 2 2 2 2 2 2
1 2 2 2 2 2 3
3 3 3 3 3 3
3 3 3 3 4 4
2 5 5 5 5 5 6
8 8 8 8 7 10
3 9 9 9 9 9 11.5
11 12 11 11 13 12
4 13 13 13 13 17 16.5
5 15 15 15 15 20 21
6 19 19 19 19 27 26
8 30 30 30 30 47 42
10 43 43 43 43 70 54
12 64 64 64 64 123 88
14 90 90 90 105 140 114
16 106 98 98 140 180 140
18 130 130 130 160 220 165
20 165 165 165 195 285 197
22 185 185 185 245 355 225
24 220 220 220 275 430 268


Sizes Of A350 LF2 Blind Flange


Normal Pipe Size

DN

1/2

15

3/4

20

1

25

1 1/4

32

 1 1/2

40

2

50

2 1/2

65

3

80

4

100



Gasket For ASME SA350 LF2 Slip On Flange


Gasket For ASME SA350 LF2 Slip On Flange

Normal Pipe Size In Inch (I.D.) Gasket (O.D.) Gasket
Class 150
1/2 0.84 1.875
3/4 1.06 2.25
1 1.31 2.625
1 1/4 1.66 3
1 1/2 1.91 3.375
2 2.38 4.125
2 1/2 2.88 4.875
3 3.50 5.375
4 4.50 6.875
5 5.56 7.75
6 6.62 8.75
8 8.62 11
10 10.75 13.375


Pipe Flange A350 LF2 Bolts Chart


NPS
(in inch)
Class 150 A350 LF2 Flanges
Diameter
( in Inches)
Number
of
Bolts
Diameter of
Bolts
(in Inches)
Diameter of
Bolts Holes
(in Inches)
(B.C.)
(in Inches)
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


ASTM A350 LF2 Class 1 Lap Joint Flange manufacturer in UAE offers RTJ/ RF Face Types in SCH 40/80 and 2" To 24 Inches, buy ASME SA350 LF2 CL2 Threaded/ Plate/ Spectacle Blinds/ Orifice Flanges at factory price in Dubai


Manufacturing Drawing Of A350 LF2 Killed Carbon Steel Flanges


Manufacturing Drawing Of A350 LF2 Killed Carbon Steel Flanges

A350 LF2 Flanges Impact Test Temperature


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