ASME SA213 TP304L Stainless Seamless Tube For Heat Exchanger

GNEE, as a leading global exporter of stainless steel heat exchanger tubes, supplies TP304L precision tubing that strictly complies with ASTM A213, ASME SA213, and EN 10216-5, ensuring the products meet the stringent safety requirements of industries such as petrochemical processing, pharmaceuticals, and food processing.

 

The ASTM A213 TP304L heat exchanger tubes supplied by GNEE are available in various forms, including straight tubes, U-bend heat exchanger tubes, condenser tubes, and precision cold-drawn tubes. Surface finishes include BA (bright annealed), pickled, and polished, which effectively reduce scale and fouling buildup, thereby maximizing fluid flow efficiency.

 

Our TP304L tubes are manufactured using precision cold drawing or cold rolling processes, followed by solution annealing at 1900°F (1040°C) and rapid quenching. This process produces a uniform austenitic microstructure, while the maximum carbon content of only 0.030% effectively prevents intergranular corrosion in the heat-affected zone (HAZ) after welding. As a result, these tubes are widely used in petrochemical plants, power generation facilities, food processing systems, pharmaceutical equipment, and marine heat exchanger applications.

 

ASTM A213 TP304L seamless tubes provide a minimum yield strength of 170 MPa (25 ksi) and a tensile strength of 485 MPa (70 ksi), maintaining safe and stable performance even at operating temperatures up to 800°F (427°C).

ASTM A213 TP304L Stainless Steel Tube Specification

Specification	ASTM A-213 & Its equivalent ASME, DIN & EN Standard.
Grades	304, 304L, 304H, 304LN, 309S, 310S, 316, 316L, 316H, 316Ti
Type	Seamless Ferritic and Austenitic Boiler, Superheater, and Heat-Exchanger Tubes
Outer Diameter Size	1/4" OD, NB to 3" OD, NB sizes
Thickness	1mm to 12mm, SCH 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S as per ANSI B36.19/36.10
Length	Up to 6 meters, custom cut lengths
Ends	No.1 Pickled Finish, No.4 finish, BA Finish, Electropolished Seamless Tubes
Delivery Conditions	As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw
Coating	Electropolish, Mechanical Polish, Satin Finish, Passivated

 

ASME SA213 TP304L Stainless Steel Tube  Chemical Composition

Grade	Carbon	Manganese	Phosphorus	Sulfur	Silicon	Chromium	Nickel
TP304L	≤ 0.035	≤ 2.0	≤ 0.045	≤ 0.030	≤ 1.0	18.0–20.0	8.0-13.0

 

Heat Treatment and Grain Size Requirements

Grade	Heat treatment	Temperature	Cooling
TP304L	Solution treatment	1900°F (1040°C) min	Water or other rapid cooling

 

ASME SA213 TP304L Seamless Tube Mechanical Properties

Grade	UNS Designation	Tensile Strength, min, [MPa, ksi]	Yield Strength, min, [MPa, ksi]	Elongation in 2 in. or 50 mm, min, %B,C
TP304L	S30403	70 [485]	25 [170]	35

 

ASTM A213 TP304L Tube Pressure Ratings

Wall Thcickness in inches	Outer Diameter in inches	Working Pressure (PSI) 25% of Burst	Theoretical Yield Point ** (PSI)	Tensile Strength (PSI)	Theoretical Burst Pressure * (PSI)	Yield Strength (PSI)
0.049	0.375	6,634	10,614	75,000	26,534	30,000
0.028	0.250	5,412	8,660	75,000	21,649	30,000
0.035	0.250	7,292	11,667	75,000	29,167	30,000
0.049	0.250	12,089	19,342	75,000	48,355	30,000
0.065	0.250	20,313	32,500	75,000	81,250	30,000
0.020	0.375	2,239	3,582	75,000	8,955	30,000
0.028	0.375	3,292	5,266	75,000	13,166	30,000
0.020	0.250	3,571	5,714	75,000	14,286	30,000
0.035	0.375	4,303	6,885	75,000	17,213	30,000
0.065	0.375	9,949	15,918	75,000	39,796	30,000

 

ASME SA213 TP304L Stainless Steel Seamless Tube Application in Heat Exchanger​

Heat Exchangers: Widely used in shell and tube heat exchangers, especially where resistance to chloride stress corrosion cracking is needed.
Boiler and Superheater Tubes: Suitable for high-temperature steam and water service due to its oxidation resistance at elevated temperatures.
Chemical Processing: Ideal for piping and exchangers handling corrosive acids or in high-pressure setups, often chosen over standard 304 due to better intergranular corrosion resistance.

 

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To ensure 100% product reliability, every shipment undergoes Non-Destructive Testing (NDT), including Eddy Current Testing in accordance with ASTM E426 and Hydrostatic Testing. Additionally, we provide comprehensive quality traceability services through Mill Test Reports (MTRs) that comply with the EN 10204 3.1 standard.

 

 

 

TP304L Stainless Steel Tube Export Records

Export of a batch of annealed and pickled ASME SA213 TP304L stainless steel seamless tubes. Specifications: Outer Diameter 19.05 mm, Wall Thickness 2.11 mm, Length 6700 mm. Total Weight: 130,000 kg.
Export of a batch of annealed and pickled ASME SA213 TP304L stainless steel seamless tubes. Specifications: Outer Diameter 21.3 mm, Wall Thickness 1.5 mm, Length 4100 mm. Total Weight: 20,000 kg.

FAQ

Q: Why choose TP304L instead of TP304 for heat exchanger applications?
A:Choose TP304L over TP304 in heat exchangers because its lower carbon content (max 0.03% vs 0.08%) prevents harmful chromium carbide precipitation during welding, avoiding intergranular corrosion in the heat-affected zone without needing post-weld heat treatment.

 

Q: Which surface finish is best suited for condenser tubes?
A:A smooth, drawn, or polished internal surface finish with a roughness value typically below Ra < 0.8 μm (or under 16–32 Ra) is best suited for condenser tubes to optimize heat transfer efficiency and minimize fluid friction.

 

Q: Do TP304L heat exchanger tubes require post-weld heat treatment?
A:No, TP304L stainless steel tubes do not normally require post-weld heat treatment (PWHT). The "L" stands for low carbon (maximum 0.03%), which stops chromium carbide from forming at the weld joints. This low carbon level keeps the metal safe from intergranular corrosion without needing a heat treatment after welding.