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ASTM A350 LF2 spectacle blind flanges

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ASTM A350 LF2 class 1 spectacle blind weld flange manufacturer In India

astm a350 lf2 spectacle blind flanges specification

Check top 7 advantages of A350 LF2 spectacle flange and A350 LF2 cl1 spectacle blind flange

Table of Content

ASTM A350 LF2 Spectacle Blind Flanges Specification

Type Sizes Material
Spectacle Blind
  • 1/2"-48"
 ASTM A350 LF2
Pressure Rating Origin Classes
Class 150 to Class 2500 Indian / Japan / USA / Korean Class 1 and Class 2
Test Certificates Face Types ASME/ANSI
  • EN 10204/3.1B
  • 100% Radiography Test Report
  • Flat face (FF)
  • Raised face (RF)
  • ASME B16.48
  • ANSI B16.48

Price list of ASME SA350 LF2 Spacer Blank Flange

Product Price
ASTM A350 LF2 SPECTACLE BLIND RF 150LB US $1.26 per kg
ASTM A350 LF2 RTJ SPECTACLE BLIND FLANGES 1500LB US $2.57 per kg

Types Of ASTM A350 LF2 Spectacle Blind Flanges

ASTM A350 LF2 spectacle blind flanges

ASTM A350 LF2 spectacle blind flanges

  • ASTM A350 LF2 class 1 spectacle blind weld flange
A350 LF2 spectacle blind flange

A350 LF2 spectacle blind flange

  • A350 LF2 spectacle flange
SA 350 LF2 spectacle blind Flange

SA 350 LF2 spectacle blind Flange

  • A350 LF2 cl1 spectacle blind flange

A 350 LF2 flat faced spectacle blind flanges and SA 350 LF2 spectacle blind forged flanges used in petrochemicals and pulp & paper mills

ASTM A350 Gr LF2 spectacle blind Flange

ASTM A350 Gr LF2 spectacle blind Flange

  • A350 GR LF2 spectacle blind plate flanges
ASTM A350 LF2 Class 1 spectacle blind Flange

ASTM A350 LF2 Class 1 spectacle blind Flange

  • SA 350 LF2 spectacle blind forged flanges
ASME SA 350 LF2 Class 1 spectacle blind Flange

ASME SA 350 LF2 Class 1 spectacle blind Flange

  • A350 LF2 cl1 spectacle blrf flange
View tolerance, sizes of A350 GR LF2 spectacle blind plate flanges as per ASTM/ ASME/ EN/ DIN/ JIS standards

A350 GR LF2 Spectacle Blind Flanges Dimensions

A350 GR LF2 spectacle blind flanges dimensions

NPS Dimensions as per Class 150 A B C t W
 1/2 45 16 60 3 38
 3/4 54 21 70 3 38
1 64 27 80 3 38
1¼ 73 42 90 6.4 38
1½ 83 48 100 6.4 38
2 102 61 120 6.4 51
2½ 107 73 140 6.4 51
3 133 89 150 6.4 64
3½ 159 102 175 9.7 64
4 172 114 190 9.7 64
5 194 141 215 9.7 76
6 219 168 240 12.7 76
8 276 219 300 12.7 76
10 337 273 360 15.7 102
12 406 324 430 19.1 102
14 448 356 475 19.1 108
16 511 406 460 22.4 108
18 546 457 580 25.4 114
20 603 508 635 28.4 121
24 714 610 750 31.8 140
Buy ASTM A350 GR LF2 spectacle flanges and SA 350 LF2 class 1 spectacle blind flange in Class 150 to 2500

ASTM A350 GR LF2 Spectacle Flanges Chemical Composition

Element Composition, w.t %
LF2 Grades
C ≤0.30
Mn 0.60-1.35
P ≤0.035
S ≤0.040
Si 0.15-0.30
Ni ≤0.40
Cr ≤0.30
Mo ≤0.12
Cu ≤0.40
Cb ≤0.02
V ≤0.08
N ...

SA350 LF2 Class 1 Spectacle Blind Flange Mechanical Properties

Grade/Class Tensile Strength Yield Strength, min. Elongation, min. Hardness, max.
ksi MPa ksi MPa % HBW
LF2 CL2 70–95 485–655 36 250 22 197

How to Select the Right SA350 LF2 Spectacle Blind Flange

  • Material
  • Size
  • Pressure Ratings
  • Connection Options
  • Flange Faces
  • Coating
  • Standards & End Connections

Different face types of A350 LF2 class 1 Spectacle Flange

  • Female ring-joint blanks
  • Flat face blanks
  • Raised face blanks
  • Male ring-joint blanks