Seamless Tubes ASTM A213 TP304/304L 316/316L Stainless Steel Pipe

ASTM A213 grade covers standard specifications for austenitic and seamless boilers, heat exchangers, and superheated vessels. The ASTM A213 Tube showcases excellent strength and outstanding corrosion resistance properties across an array of stress-induced setups. These robust tubes don’t easily deform under extreme pressures and temperatures. ASTM A213 Stainless Steel Tube in this grade is generally specified in sizes of 3.2mm, having an internal diameter of 127mm, with an outside diameter in the range of 0.4mm up to 12.7mm. They are generally divided into T5, T9, T11, T12, T22, and T91 types. The ASTM A213 Pipe has an excellent chemical composition and mechanical properties. These pipes can be processed in hot or cold rolling properties giving them desired characteristics. These features allow them to be utilized in a wide spectrum of industries.

The A213 grade modules are generally designed in seamless and welded types. In the SA 213 Stainless Steel Seamless Tube, hot steel billets are passed through metal via an extrusion process. This allows the tubes to be shaped in correct dimensions, making them suitable for an array of applications. Designed without any seams or welds, the ASME SA213 Seamless Tubing has higher corrosion resistance properties. The pressurized vessel grade ensures that the strength and load-bearing capacity in the tube is higher. The material is expensive but is preferred in harsh environments where other tubes would distort. The A213 SS Welded Tubes offers a cost-effective solution to the user. The robust tubes are generally produced by rolling sheets or strips followed by welding them in place, making use of standard welding procedures. These tubes can be availed in different sizes, unlike seamless tubes that are restricted to 24 inches. If you want to get a quote on these products or learn more about their features, get in touch with us.

ASTM A213 Specification covers various grades containing alloy steels, Ferritic and Austenitic steels, Austenitic stainless steel is the most used group due to its properties, common designated grades are listed, chemical composition, mechanical properties and solution temperature provided.

Alloy grades: T5, T9, T11, T12, T22, T36and T91 etc

Ferritic steels: TP444

Austenitic stainless steels: TP304, TP304L, TP304H, TP309S, TP309H, TP310S, TP310H,TP316, TP316L, TP316H, TP317, TP317L, TP321, TP321H, TP347, TP347H, TP348, TP348H.etc

ASTM A213 sizes usually furnished to this specification are 1/8 inch [3.2 mm] in inside diameter to 5 inch [127 mm] in outside diameter and 0.015 to 0.500 in. [0.4 to 12.7 mm]. Common outside diameter and wall thickness are listed as below, tubing having other diameters may be furnished, provided such tubes comply with all other requirements of this specification.

15.8, 16.0, 19.05, 22, 25, 28, 38.1, 57, 60.3, 76.2, 88.9, 101.6 mm etc.

0.889, 1.245, 1.651, 2.0, 2.11, 2.769, 3.404mm, etc

ASTM A213 specifies Minimum wall thickness, namely, there is no mill under tolerance, only overtolerance, unless specified as average wall thickness is required, permissible variations from the specified average wall thickness shall be +/-10 % of the specified average wall thickness for cold-formed tubes.

Seamless tubing furnished to this specification shall conform to the requirements of Specification ASTM A1016/A1016M, including any supplementary requirements.

• The tubes shall be produced through the hot-finished or cold-finished seamless process.

• Heat treatment shall be done separately and in addition to heating for hot forming.

• The ferritic alloy and ferritic stainless steels shall be reheated. austenitic stainless steel tubes shall be furnished in the heat-treated condition.

• Tubes may be individually quenched in water or rapidly cooled by other means.

• Tubes shall be pickled free of scale. When bright annealing is used, pickling is not necessary.

• Complete tests should be conducted conforming to ASTM A213 or ASTM A1016.

Each tube shall be subjected to the nondestructive electric test or hydrostatic test, Manufacturer Material Test Certification as per EN 10204 3.1 should be provided.

• Tensile property, Elongation

• Hardness testing, Brinell, Rockwell, Vickers hardness

• Flattening testing

• Flaring testing

• Hydrostatic or Nondestructive test

• Intergranular Corrosion Test – ASTM A262/E (option)