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• RAW MATERIAL  
  THE RAW MATERIAL FOR FORGED FLANGES
  · RST37.2/S235JRG1/S235JRG2
  · C22.8/P245GH/P250GH/P265GH
  · SS400/SF440A.
  · A105/A350.
  · Q235A/B/C, 16Mn/20Mn etc.
    · Square Steel
  · Round Steel
  · Steel Plate
  · Steel Ingot
  THE RAW MATERIAL FOR STEEL ELBOWS
  · Seamed steel pipe
  · Seamless steel pipe

Chemical Analysis %
Item/Element
C
Si
Mn
P
S
Al
Ni
Cu
Cr
C22.8
0.18-0.23
≤0.40
0.40-0.90
≤0.035
≤0.030
0.015-0.050

≤0.30

≤0.030
≤0.30
P250GH
0.18-0.23
≤0.40
0.40-0.90
≤0.035
≤0.030
0.015-0.050

≤0.30

≤0.030
≤0.30
RST37.2
≤0.17
≤0.12
≤1.25
≤0.035
≤0.035
S235JRG2
≤0.17
≤0.12
≤1.25
≤0.035
≤0.035
SS400
≤0.21
≤0.30
≤0.14
≤0.035
≤0.035
A105
≤0.35
0.10-0.35
0.60-1.05
≤0.035
≤0.040
≤0.40
≤0.40

≤0.30

Q235
0.14-0.22
≤0.30
0.30-0.65
≤0.045

≤0.050


Basic requirements for Material and Flange
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 EN10 025-2: 2005-04
 +N
 16Mo3 (1.5415)  DIN EN10 222-2:1999-12 + 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 EN10 222-5: 2000-02
 +AT
 1.4306 (X2CrNi19-11)  DIN 17440:1996-09
 +AT
 1.4401 (X5CrNiMo17-12-2)  DIN EN10 222-5: 2000-02
 +AT
 1.4404 (X2CrNiMo17-12-2)  DIN EN10 222-5: 2000-02
 +AT
 1.4432 (X2CrNiMo17-12-3)
 DIN EN10 222-5: 2000-02
 +AT
 1.4541 (X6CrNiTi18-10)
 DIN EN10 222-5: 2000-02
 +AT
 1.4571 (X6CrNiMoTi17-12-2)
 DIN EN10 222-5: 2000-02
 +AT
 1.4541 / F321
 DIN EN10 222-5: 2000-02 / +ASTM A 182/A 182M :2005
 +AT
 1.4571 / F316Ti  DIN EN10 222-5: 2000-02 / +ASTM A 240
 +AT
 1.4404 / F316L
 DIN EN10 222-5: 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 EN10 222-5: 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
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Square Steel
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Steel Plate

Round Steel

Seamed Steel Pipe
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