Stainless steel tubes are widely used in boilers, heat exchangers, power plants, petrochemical systems, and high-temperature industrial equipment. Among various stainless steel tubing standards, ASTM A213 stainless steel tubes are one of the most important specifications for seamless ferritic and austenitic alloy steel boiler tubes and heat exchanger tubes.
Many engineers and procurement specialists search for ASTM A213 stainless steel tubes, TP304 boiler tubes, TP316 heat exchanger tubes, TP321 high temperature tubes, and TP347 stainless steel pipes when selecting materials for high-temperature and corrosion-resistant applications.
Womic Steel is a professional manufacturer of seamless stainless steel tubes, boiler tubes, heat exchanger tubes, and cold drawn precision tubes, supplying high-quality tubing products for global industrial projects 
1 What is ASTM A213 Stainless Steel Tube?
ASTM A213 is an international standard covering seamless ferritic and austenitic alloy steel tubes used in boilers, superheaters, and heat exchangers.
These tubes are designed to operate in high-temperature and high-pressure environments where corrosion resistance and mechanical stability are essential.
Typical features include:
Excellent corrosion resistance
High temperature oxidation resistance
Good mechanical strength
Long service life
ASTM A213 tubes are widely used in power generation systems, industrial boilers, petrochemical plants, and heat exchanger equipment.
2 Common ASTM A213 Stainless Steel Tube Grades
Several stainless steel grades are commonly produced under the ASTM A213 specification.
|
Grade |
Type |
Typical Application |
| TP304 | Austenitic stainless steel | Heat exchangers |
| TP316 / TP316L | Corrosion resistant stainless steel | Chemical industry |
| TP321 | Titanium stabilized stainless steel | High temperature boilers |
| TP347 / TP347H | Niobium stabilized stainless steel | Power plant steam systems |
Each grade provides different advantages depending on the temperature, corrosion environment, and mechanical requirements.
Womic Steel produces a wide range of ASTM A213 stainless steel tubes with strict dimensional and metallurgical control.
3 ASTM A213 TP304 Stainless Steel Tubes
TP304 is the most commonly used austenitic stainless steel tube for general heat exchanger applications.
Key Features
Excellent corrosion resistance
Good weldability
Stable mechanical properties
Typical Chemical Composition
|
Element |
Content (%) |
| Carbon | ≤0.08 |
| Chromium | 18 – 20 |
| Nickel | 8 – 11 |
| Manganese | ≤2.0 |
Typical Applications
Heat exchanger tubes
Food processing equipment
Industrial piping systems
Chemical processing equipment
Because of its versatility, TP304 stainless steel tubes are widely used in industrial heat exchanger systems.
4 ASTM A213 TP316 and TP316L Stainless Steel Tubes
TP316 stainless steel provides improved corrosion resistance compared with TP304, especially in environments containing chlorides and chemicals.
Key Alloy Elements
The addition of molybdenum significantly improves corrosion resistance.
|
Element |
Content (%) |
| Carbon | ≤0.08 |
| Chromium | 16 – 18 |
| Nickel | 10 – 14 |
| Molybdenum | 2 – 3 |
Advantages
l Superior corrosion resistance
l Good high temperature strength
l Excellent resistance to chloride corrosion
Typical Applications
Chemical plants
Offshore equipment
Heat exchangers
Pharmaceutical equipment
TP316L is a low-carbon version that provides better weldability and reduced risk of intergranular corrosion.
5 ASTM A213 TP321 Stainless Steel Tubes
TP321 stainless steel is a titanium stabilized austenitic stainless steel, designed to prevent carbide precipitation at high temperatures.
Key Characteristics
Excellent high temperature stability
Improved resistance to intergranular corrosion
Good creep strength
Typical Applications
High temperature boilers
Superheater tubes
Heat exchanger systems
Because of its stability, TP321 is widely used in power plants and high-temperature industrial systems.
6 ASTM A213 TP347 and TP347H Stainless Steel Tubes
TP347 stainless steel is niobium stabilized, which provides improved creep resistance and high temperature strength.
Chemical Composition (Typical)
|
Element |
Content (%) |
| Carbon | ≤0.08 |
| Chromium | 17 – 19 |
| Nickel | 9 – 13 |
| Niobium | ≥10×C |
TP347H
TP347H is a high carbon version designed for high temperature service in power plants.
Typical Applications
Superheater tubes
High-pressure steam pipelines
Power plant boiler systems
Because of its excellent high-temperature properties, TP347H stainless steel tubes are widely used in modern power generation systems.
7 Comparison of ASTM A213 Stainless Steel Grades
|
Property |
TP304 |
TP316 |
TP321 |
TP347 |
| Corrosion Resistance | Good | Excellent | Good | Good |
| High Temperature Resistance | Moderate | Moderate | High | Very High |
| Stabilizing Element | None | Mo | Ti | Nb |
| Typical Application | Heat exchangers | Chemical plants | Boilers | Power plants |
Selecting the appropriate stainless steel grade depends on the operating temperature, corrosion environment, and mechanical requirements.
8 Manufacturing Process of ASTM A213 Stainless Steel Tubes
Producing high-quality stainless steel tubes requires advanced manufacturing processes.
Typical production steps include:
Steel Billet Selection
High quality stainless steel billets are prepared.
Hot Piercing Process
Billets are pierced to produce seamless hollow tubes.
Cold Drawing Process
Improves dimensional accuracy and surface finish.
Solution Heat Treatment
Restores corrosion resistance and mechanical properties.
Inspection and Testing
Typical quality tests include:
Hydrostatic testing
Ultrasonic testing
Eddy current testing
Chemical composition analysis
Mechanical property testing
Womic Steel uses advanced production lines and strict quality inspection systems to ensure stainless steel tubes meet international standards.
9 Dimensional Tolerance and Precision Control
Heat exchanger tubes require high dimensional accuracy.
|
Parameter |
Typical Value |
| OD tolerance | ±0.05 – ±0.10 mm |
| Wall thickness | ±7.5% |
| Straightness | ≤1/1000 |
| Ovality | ≤50% of OD tolerance |
Precision control ensures stable heat transfer efficiency and easy installation in heat exchanger tube bundles.
10 Choosing the Right Stainless Steel Tube Grade
When selecting ASTM A213 stainless steel tubes, engineers should consider:
Operating temperature
Corrosion environment
Mechanical strength requirements
Welding conditions
Cost efficiency
Typical recommendations include:
TP304 for general heat exchanger applications
TP316 for corrosive environments
TP321 for high-temperature boiler systems
TP347H for high-temperature power plant applications
A reliable tube manufacturer can provide technical support to help select the most suitable stainless steel grade.
Womic Steel – Professional Stainless Steel Tube Manufacturer
Womic Steel is a professional manufacturer specializing in seamless stainless steel tubes, boiler tubes, heat exchanger tubes, cold drawn precision tubes, and alloy steel pipes for global industrial projects.
With advanced production equipment and strict quality control systems, Womic Steel supplies high-performance tubing solutions that comply with major international standards including ASTM A213, ASTM A192, ASTM A210, ASTM A335, and EN10216.
As an experienced boiler tube manufacturer, Womic Steel provides a wide range of products including ASTM A213 TP304, TP316, TP321, TP347 stainless steel tubes, seamless boiler tubes, and heat exchanger tubes.
These products are widely used in power plants, petrochemical facilities, industrial boilers, and heat exchanger systems.
Womic Steel ensures excellent dimensional accuracy, stable mechanical properties, and reliable delivery for every project.
Website: www.womicsteel.com
Email: sales@womicsteel.com
Tel / WhatsApp / WeChat
Victor: +86-15575100681
Jack: +86-18390957568
Post time: May-15-2026