ASTM A791 Ferritic Stainless Steel Welded Pipe

A791 steel pipe is a non-annealed ferritic stainless steel welded pipe for applications in high temperature and corrosive environments where post-weld heat treatment is not required to improve corrosion resistance.
GNEE Group is a trader with 16 years of producing and selling A791 stainless steel pipe, we can supply A791 T409,T439,T444 stainless steel welded pipe for you. You can contact us anytime if you need.

A791 Welded Stainless Steel Pipe

Specifications	ASTM A791/ ASME SA791
Grades	ASTM A791 TP409, ASTM A791 TP439, ASTM A791 TP444
O.D.	6mm-660mm
Wall Thickness	0.25mm
AST Schedule	SCH. 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, XXS.
Type	Welded
Finish	2B MIll Finish , No.4 finish, BA Finish, 400 Grit Finish, 550 Grit Finish, 600 Grit Finish
Length	Single Random, Double Random & Cut Length
Types	Round, Square, Rectangle
ASTM A791 Products	ASTM A791 409 Stainless Steel Round Tubes, SS 409 rectangle tubes, SS444 No.4 Finish Tube, SS439 Polished Tubes, ASTM A791 409 Tubing, ASTM A791 409 Welded Tubing, ASTM A791 Welded Polished Tubes, ASTM A791 409 Stainless Steel Square Tube

Chemical Composition Of ASTM A791 Stainless Steel Pipe

Grade	Mfg. Process	Chemical composition(%)
		C	Si	Mn	P	S	Ni	Cr	Mo	Others
TP409	E, W	0.08Max	1.00Max	1.0Max	0.045Max	0.045Max	0.50Max	10.50~11.75	–	Ti 6C~0.75
TP439	E, W	0.07Max	1.00Max	1.00Max	0.040Max	0.030Max	0.50Max	17.00~19.00	N 0.04Max Al 0.15Max	Ti 0.20+ 4(C+N)~1.10
TPXM-27	E, W	0.01Max	0.40Max	0.40Max	0.02Max	0.02Max	0.50Max	25.0~27.0	0.75~1.50	Cu 0.2Max N 0.015Max
TPXM-33	E, W	0.06Max	0.75Max	0.75Max	0.040Max	0.020Max	0.50Max	25.0~27.0	Mo 0.75~1.50 Ti 7(C+N) 0.20Min 1.00Max	Cu 0.20Max N 0.040Max
25-4-4	E, W	0.025Max	0.75Max	0.75Max	0.040Max	0.030Max	3.5~4.5	24.5~26.0	3.5~4.2	N 0.035Max Ti+Cb 0.2+4(C+N)~0.080
26-3-3	E, W	0.030Max	1.00Max	1.00Max	0.040Max	0.030Max	1.0~3.50	25.0~28.0	3.0~3.50	N 0.040Max Ti+Cb=6(C+N) 0.20Min 1.00Max
29-4	E, W	0.010Max	0.20Max	0.30Max	0.025Max	0.15Max	28.0~30.0	3.5~4.2	–	Cu 0.15Max N 0.020Max
29-4-2	E, W	0.010Max	0.20Max	0.30Max	0.025Max	0.20Max	2.0~2.5	28.0~30.0	3.5~4.2	Cu 0.15Max N 0.020Max
18-2	E, W	0.030Max	1.00Max	1.00Max	0.040Max	1.00Max	1.00Max	28.0~30.0	3.60~4.20	N 0.045Max (Ti+Cb)=6(C+N) 0.20Min 1.00Max
29-4C	E, W	1.00Max	1.00Max	1.00Max	0.040Max	1.00Max	1.00Max	17.5~2.50	1.75~2.50	N 0.035Max (Ti+Cb)=6(C+N) 0.20Min 1.00Max

ASTM A791 Ferritic Welded Pipe

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GNEE A791 Pipe Cases

Colombia ASTM A791 T409 Welded Pipe Outside Diameter: 12" NB Thickness: 15mm 300 Tons

Kyrgyzstan ASTM A791 T439 Welded Pipe Outside Diameter: 10"NB Thickness: 10mm 280 Tons

Vietnam ASTM A791 T444 Stainless Steel Pipe Outside Diameter: 8"NB Thickness: 6mm 420 Tons

GNEE Stainless Steel Pipe Customers

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