ASTM A249 is the standard specification for welded austenitic stainless steel boiler, superheater, heat exchanger and condenser tubes. These tubes are manufactured for high-temperature and corrosion-resistant applications, offering excellent strength, durability and heat transfer efficiency in demanding industrial environments. ASTM A249 tubes are widely used in power plants, refineries, petrochemical facilities, chemical processing units and heat exchanger systems.
Kamal Steels is a leading supplier and exporter of ASTM A249 Stainless Steel Welded Tubes including ASTM A249 TP304 Tube, ASTM A249 TP304L Tube, ASTM A249 TP316 Tube, ASTM A249 TP316L Tube, ASTM A249 TP321 Tube and ASTM A249 TP347 Tube in various sizes, wall thicknesses and lengths for industrial applications worldwide.
ASTM A249 covers welded austenitic steel tubes intended for boiler, superheater, heat exchanger and condenser service. These tubes are manufactured using high-quality stainless steel strips and undergo welding, heat treatment and testing procedures to ensure superior performance.
Specification
Details
Standard
ASTM A249 / ASME SA249
Product
Welded Stainless Steel Tubes
Tube Type
Heat Exchanger & Condenser Tubes
Manufacturing Process
Welded
Outside Diameter
6.35 mm to 76.2 mm
Wall Thickness
0.5 mm to 6 mm
Length
Random, Fixed & U-Bend Lengths
Certification
EN 10204 3.1 / MTC
ASTM A249 Welded Stainless Steel Tubes
ASTM A249 Welded Tubes are manufactured from stainless steel strips that are formed and welded using advanced welding processes. These tubes offer excellent dimensional accuracy, smooth surface finish and outstanding corrosion resistance.
Compared to seamless tubes, ASTM A249 welded tubes provide a cost-effective solution for heat transfer applications while maintaining high performance standards required by industrial projects.
ASTM A249 Heat Exchanger Tubes
ASTM A249 Heat Exchanger Tubes are specifically designed to maximize heat transfer efficiency while providing excellent resistance to corrosion and scaling. These tubes are extensively used in shell and tube heat exchangers found in chemical plants, refineries and power stations.
The smooth internal surface and precise dimensions contribute to improved heat transfer performance and reduced maintenance requirements.
ASTM A249 Condenser Tubes
ASTM A249 Condenser Tubes are used in condensers where efficient cooling and corrosion resistance are critical. These tubes are suitable for handling water, steam and various process fluids under continuous operating conditions.
Their excellent thermal conductivity and durability make them a preferred choice for condenser systems in thermal power plants, petrochemical facilities and industrial cooling systems.
ASTM A249 Grades
ASTM A249 Tubes are available in a wide range of austenitic stainless steel grades to suit different operating environments and corrosion conditions.
ASTM A249 TP304 Tube
ASTM A249 TP304L Tube
ASTM A249 TP316 Tube
ASTM A249 TP316L Tube
ASTM A249 TP321 Tube
ASTM A249 TP347 Tube
ASTM A249 Chemical Composition
Grade
Carbon (%)
Chromium (%)
Nickel (%)
TP304
0.08 Max
18.0 - 20.0
8.0 - 11.0
TP304L
0.035 Max
18.0 - 20.0
8.0 - 12.0
TP316
0.08 Max
16.0 - 18.0
10.0 - 14.0
TP316L
0.035 Max
16.0 - 18.0
10.0 - 14.0
ASTM A249 Mechanical Properties
Grade
Tensile Strength (MPa)
Yield Strength (MPa)
Elongation (%)
TP304
515 Min
205 Min
35 Min
TP304L
485 Min
170 Min
35 Min
TP316
515 Min
205 Min
35 Min
TP316L
485 Min
170 Min
35 Min
ASTM A249 Equivalent Grades
ASTM Grade
UNS Number
Werkstoff No.
TP304
S30400
1.4301
TP304L
S30403
1.4307
TP316
S31600
1.4401
TP316L
S31603
1.4404
TP321
S32100
1.4541
ASTM A249 Tube Size Chart
Outside Diameter
Wall Thickness
6.35 mm
0.5 mm - 2.0 mm
12.7 mm
0.7 mm - 2.5 mm
19.05 mm
0.9 mm - 3.0 mm
25.4 mm
1.0 mm - 3.5 mm
38.1 mm
1.2 mm - 4.0 mm
50.8 mm
1.5 mm - 5.0 mm
ASTM A249 Testing & Inspection
Hydrostatic Testing
Eddy Current Testing
Flattening Testing
Reverse Flattening Testing
Flaring Testing
Chemical Analysis
Mechanical Testing
PMI Testing
Visual Inspection
Dimensional Inspection
ASTM A249 Applications
Heat Exchangers
Condensers
Power Plants
Oil & Gas Industry
Petrochemical Plants
Chemical Processing Industry
Food Processing Plants
Pharmaceutical Industry
Marine Industry
Engineering Projects
ASTM A249 Tube Supplier & Exporter in India
Kamal Steels is a leading ASTM A249 Tube Supplier, Stockist and Exporter in India offering ASTM A249 TP304 Tubes, TP304L Tubes, TP316 Tubes and TP316L Tubes in various sizes and thicknesses. We maintain ready stock for immediate dispatch and supply products with Mill Test Certificates, EN 10204 3.1 certification and third-party inspection support.
Why Choose Kamal Steels?
Trusted Supplier Since 1984
Large Ready Stock
Competitive Pricing
Mill Test Certificates Available
Third Party Inspection Support
Worldwide Export Supply
Fast Delivery
Technical Assistance
Frequently Asked Questions
ASTM A249 is the standard specification for welded austenitic stainless steel boiler, superheater, heat exchanger and condenser tubes used in high-temperature and corrosive environments.
ASTM A249 Tubes are widely used in heat exchangers, condensers, boilers, power plants, refineries, petrochemical facilities and process industries requiring efficient heat transfer.
Common ASTM A249 grades include TP304, TP304L, TP316, TP316L, TP321, TP347 and other austenitic stainless steel grades.
ASTM A249 is specifically designed for heat exchanger and condenser applications, while ASTM A269 is intended for general service stainless steel tubing applications.
ASTM A249 covers welded stainless steel tubes that undergo additional testing and inspection to ensure performance in heat transfer applications.
Industries such as power generation, petrochemical, oil and gas, chemical processing, pharmaceutical and food processing commonly use ASTM A249 tubes.
ASTM A249 Tubes undergo hydrostatic testing, eddy current testing, flattening tests, flaring tests, dimensional inspection and chemical analysis.
Yes, Kamal Steels supplies ASTM A249 Stainless Steel Tubes with Mill Test Certificates (MTC), EN 10204 3.1 certification and third-party inspection reports.
