ASTM A249 TP304L stainless steel welded pipe for heat exchanger boiler

ASTM A249 TP304L is a low-carbon austenitic stainless steel. Its lower carbon content makes it easy to weld and reduces the risk of corrosion. These pipes are manufactured in strict accordance with ASTM A249 / ASME SA249 international standards, with wall thicknesses ranging from 0.5 to 3.0 mm. They are suitable for applications that require high corrosion resistance and cleanliness, such as high-precision fluid transport, food and beverage processing pipelines, chemical heat exchanger connections, and structural support components.

 

GNEE supplies ASTM A249 TP304L stainless steel welded pipes, which are made using Tungsten Inert Gas (TIG) welding or plasma welding processes. They undergo bright annealing or pickling treatments to produce precision thin-walled welded tubes. SS304L pipes are highly durable and exhibit excellent wear resistance. SS 304L welded pipes are widely used in applications such as heat exchangers, boilers, condensers, power generation, and oil and gas plants.

 

 

Specifications:

Specification	ASTM A249 Tp304L / ASME SA249 Tp304L Tube
Shapes	Round, Rectangular, U Shape, Square, Straight, Coiled, Etc.
Technique	Cold rolled, Cold drawn, Hot rolled
Type	Welded
Thickness	SCH 5 To SCH XXS
End	Beveled End, Treaded, Plain End
Processing Service	Bending, Moulding, Welding, Cutting, Decoiling, Punching
Standard	JIS, DIN, ASTM, GB, AISI, EN, SUS
Delivery Condition	Cold Drawn, Annealed and Pickled (AP), Polished, MF, Bright Annealed (BA)

 

Equivalent Grades:

STANDARD	UNS	WERKSTOFF NR.	EN	AFNOR	JIS	BS	GOST
SS304L	S30403	1.4306/1.4307	X2CrNi18-9 / X2CrNi19-11	Z3CN18‐10	SUS 304L	304S11	03Х18Н11

 

 

Chemical Composition:

Grade		C	Ni	Si	N	S	Mn	P	Cr
SS 304L	min.	-	8	-	-	-	-	-	18
	max.	0.03	12	0.75	0.1	0.03	2	0.045	20

 

Mechanical Properties:

Tensile Strength, min	Yield Strength 0.2% Proof, min	Elongation (% in 50mm) min	Hardness
			Rockwell B (HR B) max	Brinell (HB) max
485 MPa	170 MPa	40 %	92	201

 

Applications:

Chemical Industries

Petrochemical Industries

Gas Processing Equipments

Food Processing Equipments

Fertilizers Industries

Sugar Industries

Oil & Gas Industries

Shipbuilding Equipments

Nuclear Power

 

Our ASTM A249 stainless steel pipes come with a factory warranty and third-party testing reports (such as eddy current testing, hydrostatic testing, chemical composition analysis, and corrosion testing) before shipment, ensuring that each welded pipe meets dimensional accuracy (OD tolerance ±0.10 mm, wall thickness tolerance ±10%).

                      

All stainless steel pipes are moisture-proofed and securely packaged in wooden crates, pallets, or bubble wrap. They are transported in standard containers or dedicated vehicles to ensure the integrity and safety of the goods during transit. We offer global shipping, with a typical lead time of 7-15 days from production to delivery, ensuring on-time delivery to our customers.Email:sales@gneestainless.com