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Technical Information
Our entire product range of pipes and tubes is manufactured as per international standards. We offer tubes, pipes, hollow section, flanges etc in stainless steel, alloy steel, carbon steel, mold steel etc. All our products are available in grades, specifications and dimensions. The products are available in different dimensions, coatings etc., with good corrosion as well as heat resistance.

Material Specification For Forging

GRADE Chemical Composition
C Mn P S Si Ni Cr Mo N V
LOW ALLOY STEELS
F1 0.28 0.06-0.90 0.045 0.045 0.15-0.35 0.44-0.65
F5 0.15 0.30-0.60 0.03 0.03 0.5 0.5 4.0-6.0 0.44-0.65
F9 0.15 0.30-0.60 0.03 0.03 0.50-1.10 8.0-10.0 0.90-1.10
F91 0.08-0.12 0.30-0.60 0.02 0.01 0.20-0.50 0.4 8.0-9.5 0.85-1.05
F92 0.07-0.13 0.30-0.60 0.02 0.01 0.5 0.4 8.50-9.50 0.30-0.60
F11 0.05-0.15 0.30-0.60 0.03 0.03 0.50-1.00 1.00-1.50 0.44-0.65
F12 0.05-0.15 0.30-0.60 0.045 0.045 0.50 0.80-1.25 0.44-0.65
F22 0.05-0.15 0.30-0.60 0.04 0.04 0.5 2.00-2.50 0.87-1.13
F23 0.04-0.10 0.10-0.60 0.03 0.01 0.5 1.92-2.60 0.05-0.30
SCM440 0.38-0.43 0.60-0.90 0.03 0.03 0.15-0.35 0.25 0.90-1.20 0.15-0.30
SNCM439 0.36-0.43 0.60-0.90 0.03 0.03 0.15-0.35 1.60-2.00 0.60-1.00 0.15-0.30
STAINLESS STEELS (MARTENSITIC)
F6 0.15 1 0.04 0.03 1 0.5 11.5-13.5
STAINLESS STEELS (FERRITIC)
F429 0.12 1 0.04 0.03 0.75 0.5 14.0-16.0
F430 0.12 1 0.04 0.03 0.75 0.5 16.0-18.0
STAINLESS STEELS (AUSTENTIC)
F304L 0.03 2 0.045 0.03 1 8.0-13.0 18.0-20.0
F310 0.25 2 0.045 0.03 1 19.0-22.0 24.0-26.0
F316L 0.03 2 0.045 0.03 1 10.0-15.0 16.0-18.0 2.0-3.0
F317L 0.03 2 0.045 0.03 1 11.0-15.0 18.0-20.0 3.0-4.0
F321 0.08 2 0.045 0.03 1 9.0-12.0 17.0-19.0
F347 0.08 2 0.045 0.03 1 9.0-13.0 17.0-20.0
F44 0.02 1 0.03 0.01 0.8 17.5-18.5 19.5-20.5 6.0-6.5
STAINLESS STEELS (DUPLEX)
F51 0.03 2 0.03 0.02 1 4.5-6.5 21.0-23.0 2.5-3.5
F53 0.03 1.2 0.035 0.02 0.8 6.8-8.0 24.0-26.0 3.0-5.0
F904L 0.02 2 0.04 0.03 1 23.0-28.0 19.0-23.0 4.0-5.0
SUSF329J3L 0.03 2.00 0.04 0.03 1 4.50-6.50 21.0-24.0 2.5-3.5 0.08-0.20
F60
CARBON STEELS
A105 0.35 0.60-1.05 0.035 0.04 0.10-0.35 0.4 0.3 0.12
A350LF2 0.3 0.60-1.35 0.035 0.04 0.15-0.30 0.4 0.3 0.12
A350LF3 0.2 0.9 0.035 0.04 0.20-0.35 3.3-3.7 0.3 0.12
A694/F65 0.26 1.4 0.025 0.025 0.15-0.35
S45C 0.42-0.48 0.60-0.90 0.30 0.35 0.15-0.35
ALLOY STEELS
ALLOY20 0.07 2 0.45 0.35 1 32-38 19-21 2.0-3.0
ALLOY625 0.1 0.5 0.015 0.015 0.5 58 20-23 8.0-10.0
ALLOY800 0.1 1.5 0.015 1 30-35 19-23
A800H/HT 0.05-0.10 1.5 0.015 1 30-35 19-23
ALLOY825 0.05 1 0.03 0.5 38-46 19.5-23.5 2.50-3.50
MOLD STEELS
SKT4 0.50-0.60 0.60-0.90 0.03 0.02 0.10-0.40 1.50-1.80 0.80-1.20 0.35-0.55 0.05-0.15
STD61 0.32-0.42 0.50 0.03 0.03 4.50-5.50 1.00-1.50 0.80-1.20


GRADE Mechanical Propertise
UNSNO DIN Tensile Strength
Min, ksi(MPa)		 Yield Strength
Min, ksi(MPa)		 Brinell
Hardness
LOW ALLOY STEELS
F1 K12822 15Mo3 70(485) 40(275) 143-192
F5 K41545 12CrMo19-5 70(485) 40(275) 143-217
F9 K90941 12CrMo9-1 85(585) 55(380) 179-217
F91 K90901 X10CrMovN69-1 85(585) 60(415) 248max
F92 ¡¡ ¡¡ 90(620) 64(440) 269max
F11 K11597 13CrMo44 60(415) 30(205) 121-174
F12 K11562 16CrMo44 60(415) 32(220) 121-174
F22 K21590 10CrNo9-10 60(415) 30(205) 170max
F23 K41650 ¡¡ 74(510) 58(400) 220max
SCM440 ¡¡ 42CrMo4 ¡¡ ¡¡ ¡¡
SNCM439 ¡¡ 36CrNiMo4 ¡¡ ¡¡ ¡¡
STAINLESS STEELS (MARTENSITIC)
F6 S41000 X12Cr13 70(485) 40(275) 143-207
STAINLESS STEELS (FERRITIC)
F429 S42900 ¡¡ 60(415) 35(240) 190max
F430 S43000 ¡¡ 60(415) 35(240) 190max
STAINLESS STEELS (AUSTENTIC)
F304L S30403 X2CrNi19-11 70(485) 25(170) ¡¡
F310 S31000 X12CrNi25-20 75(515) 30(205) ¡¡
F316L S31603 X2CrNiMo18-14-3 70(485) 25(170) ¡¡
F317L S31703 ¡¡ 70(485) 25(170) ¡¡
F321 S32100 X6CrNiTi18-10 75(515) 30(205) ¡¡
F347 S34700 X6CrNiNb18-10 75(515) 30(205) ¡¡
F44 S31254 ¡¡ 94(650) 44(300) ¡¡
STAINLESS STEELS (DUPLEX)
F51 S31803 X2CrNiMoN22-5-3 90(620) 65(450) ¡¡
F53 S32750 X2CrNiMoCuWN25-7-4 116(800) 80(550) 310max
F904L NO8904 ¡¡ 71(490) 31(215) ¡¡
SUSF329J3L ¡¡ ¡¡ ¡¡ ¡¡ ¡¡
F60 S32205 ¡¡ ¡¡ ¡¡ ¡¡
CARBON STEELS
A105 ¡¡ CK25 70(485) 36(250) 187
A350LF2 ¡¡ ¡¡ 70-95(485-655) 36(250) 197
A350LF3 ¡¡ ¡¡ 70-95(485-655) 37.5(260) ¡¡
A694/F65 ¡¡ ¡¡ 77(530) 65(450) ¡¡
S45C ¡¡ CK45 ¡¡ ¡¡ ¡¡
ALLOY STEELS
ALLOY20 NO8020 ¡¡ ¡¡ ¡¡ ¡¡
ALLOY625 NO6625 ¡¡ ¡¡ ¡¡ ¡¡
ALLOY800 NO8800 ¡¡ ¡¡ ¡¡ ¡¡
A800H/HT NO8810/11 ¡¡ ¡¡ ¡¡ ¡¡
ALLOY825 NO8825 ¡¡ ¡¡ ¡¡ ¡¡
MOLD STEELS
SKT4 ¡¡ ¡¡ ¡¡ ¡¡ ¡¡
STD61 ¡¡ ¡¡ ¡¡ ¡¡ ¡¡


Material Specification For Buttweld Fittings

Marking
Symbols		 Materals Form Chemical Composition(percent)
Max. or Range(Uniess otherwise indicated)
C Si Mn P S Ni
A234 WPB A106 Gr.B
A151 Gr.65
A515 Gr.70		 P
PL
PL 		0.30
0.28-0.33
0.31-0.35		 0.10min
0.13-0.33
0.13-0.33		 0.29-1.06
0.90
0.90		 0.048
0.035
0.035		 0.058
0.040
0.040		 -
-
-
WPC A106 Gr.C P 0.35 0.10min 0.29-1.06 0.048 0.058 -
WP1 A335 Gr.P1
A204 Gr.B		 P
PL		 0.10-0.20
0.20-0.27		 0.10-0.50
0.13-0.32		 0.30-0.80
0.90		 0.045
0.035		 0.055
0.040		 -
-
WP12 A335 Gr.P12
A387 Gr.12		 P
PL		 0.15
0.17		 0.50
0.13-0.32		 0.30-0.61
0.36-0.69		 0.045
0.035		 0.055
0.040		 -
-
WP11 A335 Gr.P11
A387 Gr.11		 P
PL		 0.15
0.17		 0.50-1.00
0.44-0.86		 0.30-0.60
0.35-0.69		 0.030
0.035		 0.030
0.040		 -
-
WP22 A335 Gr.P22
A387 Gr.22		 P
PL		 0.15
0.15-0.17		 0.50
0.50		 0.30-0.60
0.27-0.63		 0.030
0.035		 0.030
0.035		 -
-
WP5 A335 Gr.P5
A387 Gr.5		 P
PL		 0.15
0.15		 0.50
0.50		 0.30-0.60
0.27-0.63		 0.030
0.040		 0.030
0.030		 -
-
WP91 A335 Gr.P91
A387 Gr.91		 P
PL		 0.08-0.12
0.18-0.12		 0.20
0.50		 0.30-0.60
0.30-0.60		 0.020
0.020		 0.010
0.010		 0.400
0.400
A403 WP304 A312 Gr.TP304
A240 Type304		 P
PL		 0.08
0.15		 0.75
1.00		 2.00
2.00		 0.040
0.045		 0.030
0.030		 8.00-11.00
8.00-10.50
WP304H A312 Gr.TP304H
A240 Type304H		 P
PL		 0.01-0.10
0.04-0.10		 0.75
1.00		 2.00
2.00		 0.040
0.045		 0.030
0.030		 8.00-11.00
8.00-10.50
WP304L A312 Gr.TP304L+
A240 Type304L+		 P
PL		 0.035
0.030		 0.75
1.00		 2.00
2.00		 0.040
0.045		 0.030
0.030		 8.00-13.00
8.00-12.00
WP309 A312 Gr.TP309
A240 Type309S		 P
PL		 0.15
0.08		 0.75
1.00		 2.00
2.00		 0.040
0.045		 0.030
0.030		 12.00-15.00
12.00-15.00
WP310 A312 Gr.TP310
A240 Type310S		 P
PL		 0.15
0.08		 0.75
1.00		 2.00
2.00		 0.040
0.045		 0.030
0.030		 19.00-22.00
19.00-22.00
WP316 A312 Gr.TP316
A240 Type316		 P
PL		 0.08
0.08		 0.75
1.00		 2.00
2.00		 0.040
0.045		 0.030
0.030		 11.00-14.00
10.00-14.00
WP316H A312 Gr.TP316H
A240 Type316H*		 P
PL		 0.04-0.10
0.40-0.10		 0.75
1.00		 2.00
2.00		 0.040
0.045		 0.030
0.030		 11.00-14.00
10.00-14.00
WP316L A312 Gr.TP316L
A240 Type316L+		 P
PL		 0.035
0.030		 0.75
1.00		 2.00
2.00		 0.040
0.045		 0.030
0.030		 10.00-15.00
10.00-14.00
WP317L A312 Gr.TP317L
A240 Type317L		 P
PL		 0.035
0.030		 0.75
1.00		 2.00
2.00		 0.040
0.045		 0.030
0.030		 11.00-15.00
11.00-15.00
WP321 A312 Gr.TP321
A240 Type321		 P
PL		 0.08
0.08		 0.75
1.00		 2.00
2.00		 0.040
0.045		 0.030
0.030		 9.00-13.00
9.00-12.00
WP321H A312 Gr.TP321H
A240 Type321H*		 P
PL		 0.04-0.10
0.04-0.10		 0.75
1.00		 2.00
2.00		 0.040
0.045		 0.030
0.030		 9.00-13.00
9.00-12.00
WP347 A312 Gr.TP347
A240 Type347		 P
PL		 0.08
0.08		 0.75
1.00		 2.00
2.00		 0.040
0.045		 0.030
0.035		 9.00-13.00
9.00-13.00
WP347H A312 Gr.TP347H
A240 Type347H*		 P
PL		 0.04-0.10
0.08		 0.75
1.00		 2.00
2.00		 0.040
0.045		 0.030
0.030		 9.00-13.00
9.00-13.00
A420 WPL6 A333 and A334 Gr.6
A516 Gr.60		 P
PL		 0.30
0.21-0.27		 0.10min
0.13-0.33		 0.29-1.06
0.60-1.25		 0.048
0.035		 0.058
0.040		 -
-
WPL3 A333 and A334 Gr.3
A203 Gr.D		 P
PL		 0.19
0.17-0.20		 0.18-0.37
0.13-0.32		 0.31-0.64
0.70-0.80		 0.050
0.035		 0.050
0.040		 3.18-3.82
3.18-3.82
WPL9 A333 and A332 Gr.9
A203 Gr.A		 P
PL		 0.20
0.17		 -
0.15-0.40		 0.40-1.06
0.70		 0.025
0.035		 0.025
0.040		 1.60-2.24
2.10-2.50
A815 S31803 A790 S31803
A240 S31803		 P
PL		 0.030 1.0 2.0 0.030 0.020 4.50-6.50
6.0-8.0
S32750 A790 S32750
A240 S32750		 P
PL		 0.030 0.8 1.2 0.035 0.020 -0.0-8.00
-
S32760 A790 S32760
A240 S32760		 P
PL		 0.05
0.030		 1.00 1.00 0.030 0.010 -
-
A860 WPHY42 API Gr.X42
A572 Gr.42		 P
PL		 0.28 -
-		 1.25 0.04 0.05 -
-
WPHY60 API Gr.X60
A572 Gr.60		 P
PL		 0.26 -
-		 1.35 0.04 0.05 -
-
WPHY65 API Gr.X65
A572 Gr.65		 P
PL		 0.26 -
-		 1.40 0.04 0.05 -
-


· Asterisks(*) denote that the carbon content shall be 0.04 to 0.10%. Daggers(+) denote that the minimum tensile strength shall be 65.000 psi(488 MPa), and that the minimum yield strength shall be 25.000 psi(172 MPa).
· The yield strength shall be determined by the offset method at 0.2% timiting perminet set in accordance with ASTM A370 Specification. An alternative method of determining yield strength maybe based on a total extension under load of 0.5%.




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