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What is a Flange?

Pipe Flanges Raw Material Specifications

The usual materials of flanges include stainless steel, carbon steel, aluminum and plastic.

The choice of the material largely depends on the purpose of the flange. For example, stainless steel is more durable and is necessary for heavy use.

On the other hand, plastic is more feasible for use in the home because of its reasonable price and easy installation. The materials used for flanges are under the designation of the American Society of Mechanical Engineers. Requirements are valid for normal situation, in special you have to contact us to introduce.

Material
Test basis / Requirements
Delivery Condition
 C 22.8 (1.0460)  DIN 17243: 01.87 + VdTUEV - WB 350/3: 2009
  DIN 17243: 01.87
  VdTÜV - WB 350/3: 2009
 +N
 P250GH (1.0460)  DIN EN 10222-2: 04.2000
  National Annex
 +N
 P245GH (1.0352)  EN 10222-2:1999-12 + AC : 2000-02
 +N
 A105N / C21  ASTM A105/A105M-05/ ASME BPVC Sec.2 Part.A:04
  + VdTUEV399/3: 1996-09
  + NACE MR 0175: 2000
 +N
 A105N  ASTM A105/A105M-05/ ASME BPVC Sec.2 Part.A:04
  + NACE MR 0175: 2000
 +N
 C21 (1.0432)  VdTUEV - WB 399/3: 1996-09
 +N
 RSt 37-2 (1.0038)  DIN 17100: 1980-01
 +N
 S235JR (1.0038)  DIN EN10025-2: 2005-04
 +N
 16Mo3 (1.5415)  DIN EN10222-2:1999-12 + AC:2000-02
 +N
 WStE355 / TStE355
  (1.0565 / 1.0566)
 DIN EN17103 :1989-10, + VdTUEV-WB 354/3 : 2001-06
 +N or QT
 P355NH  (1.0565)  DIN EN10222-4: 1998 + A1: 2002-12
 +N
 WStE355 / P355NH 
  (1.0565)
 DIN EN17103 :1989-10, + VdTUEV-WB 354/3 : 2001-06
  + DIN EN10222-4: 1998 + A1: 2002-12
  + DIN EN17103 :1989-10
  + DIN EN10222-4: 1998 + A1: 2002-12
 +N or QT
 1.4301 (X5CrNi17-10)  DIN EN10222-5: 2000-02
 +AT
 1.4306 (X2CrNi19-11)  DIN 17440:1996-09
 +AT
 1.4401 (X5CrNiMo17-12-2)  DIN EN10222-5: 2000-02
 +AT
 1.4404 (X2CrNiMo17-12-2)  DIN EN10222-5: 2000-02
 +AT
 1.4432 (X2CrNiMo17-12-3)
 DIN EN10222-5: 2000-02
 +AT
 1.4541 (X6CrNiTi18-10)
 DIN EN10222-5: 2000-02
 +AT
 1.4571 (X6CrNiMoTi17-12-2)
 DIN EN10222-5: 2000-02
 +AT
 1.4541 / F321
 DIN EN10222-5: 2000-02 / +ASTM A 182/A 182M :2005
 +AT
 1.4571 / F316Ti  DIN EN10222-5: 2000-02 / +ASTM A 240
 +AT
 1.4404 / F316L
 DIN EN10222-5: 2000-02 / +ASTM A 182/A 182M :2005
 +AT
 1.4306 / F304L
 DIN 17440.1996-09 / +ASTM A 182/A 182M : 2005
 +AT
 1.4307 / F304L  DIN EN10222-5: 2000-02 / +ASTM A 182/A 182M :2005
 +AT
Flange
Test basis / Requirements
 DIN, Carbon Steel
 DIN2519:1991-06
  + AD2000-W9: 02.04; -W13/ TRD107;TRB100;
  + Directive 97/23/EG Annex I, Chap. 4.3: 1998-02
 DIN, corrosion-resistant Steel
 DIN2519:1991-06
  + AD2000-W9: 02.04; -W2; -W10 / TRD107; TRB100;
  + Directive 97/23/EG Annex I, Chap. 4.3: 1998-02
 DIN EN 1092-1, Carbon Steel
 DIN EN 1092-1: 2008-09
  + AD2000-W9; -W13/TRD107;TRB100
  + Directive 97/23/EG Annex I, Chap. 4.3: 1998-02
 DIN EN 1092-1, Stainless Steel
 DIN EN 1092-1: 2008-09
  + AD2000-W9; -W2; -W10/ TRD107; TRB100
  + Directive 97/23/EG Annex I, Chap. 4.3: 1998-02
 ANSI  ASME B16.5:2003
  ASME B16.47:2006
Basic requirements for Material and Fitting
Requirements are valid for normal case, in special case you have to contact the technical department.
Material
Test basis / Requirements
Delivery Condition
 1.4541 (X6CrNiTi18-10)  DIN 17458:1996-09
+AT
 1.4571 (X6CrNiMoTi17-12-2)  DIN 17458:1996-09
+AT
Fittings
Test basis / Requirements
 DIN2609 Stainless Steel
 VdTUEV –MB 1252/ AD2000- W2; W10/TRD107;TRB100
T-Piece  Directive 97/23/EG Annex I, Chap. 4.3:1998-02
Bow  DIN2615-1
Reducer DIN2605-1
DIN2616-1
Standard we supply
ANSI
AWWA
ASME
DIN
Slip-On Flanges, SO Flange
Common flange types
Anchor flange
Specialty flange
150LB Carbon steel forged flange
Material Grades
Custom pipe flanges can be manufactured from a wide variety of materials and material grades.

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