ASME SA213 TP444 stainless steel heat exchanger seamless tube
ASME SA213 TP444 stainless steel heat exchanger seamless tube
ASME SA213 TP444 is a seamless ferritic stainless steel tube known for its excellent high-temperature performance, corrosion resistance, and strength, making it ideal for demanding heat exchanger applications. Its performance stems from its special alloy composition, including chromium, molybdenum, nitrogen, and copper, and its seamless construction makes it more reliable under pressure than welded tubes.
What is ASME SA213?
ASTM A213 / ASME SA213 TP316 is the standard specification for seamless superheater, hydraulic, boiler, condenser, and heat exchanger tubes. ASTM A213 TP 316 includes round, rectangular, square, hydraulic, straight, "U"-shaped, coiled, honed, and coiled SS 316 tube fabrication types.
ASME SA213 seamless stainless steel pipe can be finished to customer specifications for size and wall thickness and heat treated for more demanding applications. Typically, ASME SA213 seamless stainless steel pipe is available in sizes from 1/2-inch to 8-inch NB and complies with current ASTM, API, and ASME standards.
Key Test Terms and Procedures for ASME SA213 Heat Exchanger Tubes
1. Heat Treatment and Solution Annealing/Bright Annealing
2. Cutting to Required Length and Deburring
3. 100% PMI Chemical Composition Analysis Testing of Each Heat of Steel Pipe Using an Optical Emission Spectrometer
4. Visual and Endoscopic Inspection of Surface Quality
5. 100% Hydrostatic Testing and 100% Eddy Current Testing
6. Ultrasonic Testing in accordance with MPS (Material Purchasing Specification) Requirements
7. Mechanical Testing, including Tensile, Flattening, Flaring, and Hardness Testing
8. Impact test, must meet standard requirements.
9. Grain size test and intergranular corrosion test.
10. Ultrasonic wall thickness measurement.
Pipe ends: Pipe ends can be flat, beveled, square (upon request), and deburred.
ASME SA213 TP444 Chemical Element Composition Content
| GRA. | C | Si | Mn | P | S | Cr | Mo | N | More |
| TP444 | 0.03 | 1.00 | 1.00 | 0.04 | 0.03 | 17.5-19.5 | 1.75-2.5 | 0.035 | Ni+Cu≤1.00;Ti+Nb:0.20+4(C+N) ~ 0.80 |
ASME SA213 TP444 Stainless Steel Seamless Heat Exchanger Tube Mechanical Properties
|
Tensile strength σb, Mpa |
Yield point σs, Mpa |
Elongation or elongation after fracture δ, % |
Hardness HBW |
| ≥415 | ≥275 | ≥20 | ≤217 |
ASME SA213 TP444 Seamless Stainless Steel Tubing Applications
Power Plants: Flue gas heat exchangers and economizers.
Petrochemical Industry: Various coolers and condensers, particularly for chlorinated circulating water systems.
Environmental Protection and Desalination: Heat exchangers in wastewater treatment systems, multi-stage flash evaporators, or desalination plants.
Pulp and Paper Industry: Equipment for handling chlorinated chemical solutions.
Gnee Steel specializes in the production of a wide range of stainless steel products. Gnee Steel's product packaging includes: Steel Strapping: Pipes with an outer diameter of 3 inches or less are typically strapped together with polypropylene film to prevent rust during ocean shipping, and then secured with steel strapping. Wooden Cases/Crates: Pipes are typically packaged in wooden cases or crates to protect the pipes during transportation, especially those that are longer or have larger diameters. Seaworthy Export Packaging: Suppliers typically use standard seaworthy export packaging methods, which may include a variety of materials and techniques to protect the pipes during transportation. Tarpaulin Packaging: This prevents rain, seawater, and other external factors from penetrating the export crates during transportation. Gnee Steel specializes in the production and sale of alloy materials. Gnee Steel's products are widely used in the aerospace, chemical, power, automotive, and nuclear energy sectors, and we can provide customized alloy material solutions based on customer needs. For alloy material pricing or customized alloy material solutions, please contact us for a quote: ru@gneesteelgroup.com
