Stainless Steel Welded Tube

Stainless Steel Welded Tube, Stainless Steel Welded Tubes, Welding Stainless Tube, Welding Stainless Steel Tube,SS Welded Tubing, Stainless Steel 304 Welded Tube, ASTM A269 UNS S31600 Welded Tubes, Stainless Steel 904L Welded Tubes, SS 254 SMO Welded Tubes, Welding Thin Wall Stainless Steel Tubing, Welding Stainless Exhaust Tubing, Tig Welding Stainless Exhaust Tubing, Welding Sanitary Tubing, ASTM A269 Tubing Specifications

 

Stainless steel welded tube is seamed steel tube. The production of welded stainless steel tube is to bend the tube blank (steel plate and steel strip) into a tube with the required cross-sectional shape and size by various forming methods, and then use different welding methods to weld the weld seam to obtain a steel tube. Stainless steel welded tubes have excellent corrosion resistance, can resist the corrosion of most chemical substances, and have extremely high stability and durability. Welding stainless steel tube has excellent mechanical properties, high strength, high hardness and toughness, and is easy to process into tubes of various shapes and sizes.

 

 

Stainless Steel Welded Tube Specifications

Tube Specifications	ASTM A269 / ASME SA 269 ASTM B676 / ASME SB 676 ASTM A789 / ASME SA 789
Grade	TP304,TP304L,TP316,TP316L,316Ti TP317,TP317L,TP321,TP310S,TP347,S31254,N08367,N08926,N08904
Pipe Standard	DIN, JIS, ASTM, EN, GB, AISI, ASME
Thickness	0.3mm - 50 mm
Welded Tube Size	6.35 mm OD To 152 mm OD
Tube End	Plain End, Beveled End, Treaded Pipe.

 

We use high-quality stainless steel, our stainless steel welded tube complies with ASTM A269, ASME SA269, ASTM B676, ASME SB676, ASTM A789, ASME SA789 international quality standards, including various grades TP304, TP304L, TP310S, TP316, TP316L, 316Ti, TP317, TP317L, TP321, TP347, TP347H, S31254, N08367, N08926, N08904. SS welded tubing has the advantages of excellent corrosion resistance, formability, compatibility and toughness in a wide temperature range.

 

Compared with seamless steel tube, stainless Steel 304 welded tube has high product precision, especially wall thickness precision (the size of welded tube is represented by any two of its actual size, namely outer diameter, inner diameter, and wall thickness). The main equipment is simple, the land occupation is small, the production can be continuously operated, the production is flexible, the product range of the unit is wide, and the production cost is low. SS 254 SMO welded tubes are generally smaller diameter tubes, and there are various types of welding stainless tubes, including round stainless steel welded tube, rectangular stainless steel welded tube, square stainless steel welded tube. ASTM A269 UNS S31600 welded tubes are mainly used for heat exchange purposes, such as furnace tubes, superheater and reheater tubes, economizer tubes, etc.

 

Chemical Composition of Stainless Steel Welded Tube

Grade	UNS	C≤	Mn	P≤	S≤	Si≤	Cr	Mo	Ni	Cu
TP304	S30400	0.08	2	0.045	0.03	1	18.0-20.0	-	8.0-11.0	-
TP304L	S30403	0.035	2	0.045	0.03	1	18.0-20.0	-	8.0-13.0	-
TP316	S31600	0.08	2	0.045	0.03	1	16.0-18.0	2.00-3.00	10.0-14.0	-
TP316L	S31603	0.035	2	0.045	0.03	1	16.0-18.0	2.00-3.00	11.0-14.0	-
316Ti	S31635	0.08	2	0.045	0.03	0.75	16.0-18.0	2.00-3.00	10.0-12.0	-
TP317	S31700	0.08	2	0.045	0.03	1	18.0-20.0	3.0-4.0	11.0-14.0	-
TP317L	S31703	0.035	2	0.045	0.03	1	18.0-20.0	3.0-4.0	11.0-15.0	-
TP321	S32100	0.08	2	0.045	0.03	1	17.0-19.0	-	9.0-12.0	-
321H	S32109	0.04-0.1	2	0.045	0.03	1	17.0-19.0	-	9.0-12.0	-
310	S31000	0.25	2	0.045	0.03	1.5	24.0-26.0	0.75	19.0-22.0	-
TP310S	S31008	0.08	2	0.045	0.03	1	24.0-26.0	0.75	19.0-22.0	-
TP347	S34700	0.08	2	0.045	0.03	1	17.0-19.0	-	9.0-13.0	-
254SMO	S31254	0.02	1	0.03	0.01	0.8	19.5-20.5	6.0-6.5	17.5-18.5	0.5-1.0
AL-6XN	N08367	0.03	2	0.04	0.03	1	20.0-22.0	6.0-7.0	23.5-25.5	0.75
F904L	N08904	0.02	2	0.04	0.03	1	19.0-23.0	4.0-5.0	23.0-28.0	1.0-2.0

 

Stainless Steel Welded Tube Mechanical Properties

Mechanical properties	Tensile, min, ksi[MPa】	Yield, min, ksi[MPa】	Elongation, %(min)	Hardness, HB（max）
TP304	75【515】	30【205】	35	192
TP304L	70【485】	25【170】	35	192
TP316	75【515】	30【205】	35	192
TP316L	70【485】	25【170】	35	192
316Ti	75【515】	30【205】	35	192
TP317	75【515】	30【205】	35	192
TP317L	75【515】	30【205】	35	192
TP321	75【515】	30【205】	35	192
321H	75【515】	30【205】	35	192
TP310	75【515】	30【205】	35	192
TP310S	75【515】	30【205】	35	192
TP347	75【515】	30【205】	35	192
S31254	98【675】	43【310】	35	220
N08367	100【690】	45【310】	30	241
N08926	94【650】	43【295】	35	256
N08904	71【490】	31【215】	35	192

 

Welded Stainless Steel Tube Production Process

Stainless steel 304 welded tube is made by rolling stainless steel strip or sheet into tube shape, and then welded longitudinally. Welded tubing can be done by hot forming and cold forming process. Of the two, cold forming results in smoother finishes and tighter tolerances. However, each method produces a durable, strong, corrosion-resistant steel tube. Seams can be left beaded or further processed by cold rolling and forging methods. SS welded tubes can also be drawn like seamless tubes to produce finer welds with better surface finish and tighter tolerances. At the same time, the mechanical performance, process performance, chemical composition and compressive performance of the welded tube can basically meet the national standard of seamless tube.

 

Stainless Steel Welded Tube Quality Inspection

The company has passed ISO9001: 2000 quality management system certification and API quality certification system certification. It has a sound quality inspection and control system, equipped with industrial CT, chemical analysis, eddy current inspection, hydraulic test, air tightness test, universal testing machine and other inspection links or inspection equipment. And established a customer satisfaction after-sales service system to ensure the quality of stainless steel 904L welded tubes and meet customer needs.

 

 

 

 

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