1. Outer Diameter (OD): 6.25mm-203mm
  2. Wall Thickness (WT): 0.5mm-12mm
  3. Length: 5-12m or as per customer requirements
  4. Application: Primarily used as small-diameter stainless steel tubes for superheaters, heat exchangers, and condensers in industries such as petroleum, power plants, and mining.
  5. Additional Technology: Available plain or threaded with socket, beveled with plastic caps, and subject to hydraulic testing, eddy current examination, and Infrared testing.
  6. Surface: Options include annealed & pickled, bright annealing, and polished finishes.
  7. Delivery Condition: Can be supplied in a Hot Rolled or Cold Drawn state.
  8. Steel Grade: TP304/304L, TP316/316L

CG Steel stands as a premier supplier of ASTM A269 stainless steel tubes catering to boiler and pressure vessel applications. Our extensive inventory covers tubes of all grades and dimensions. The main grades in ASTM A269 stainless steel tubes include TP304/TP304L, TP316/TP316L, TP321, and more. This specification encompasses seamless and welded austenitic steel tubing with nominal-wall thickness, designed for general corrosion resistance in low or high-temperature services. All materials are provided in the heat-treated condition, and the tube product can be either hot or cold finished.

Austenitic steel tubes (TP304/TP304L, TP316/TP316L) exhibit excellent weld performance and high corrosion resistance, encompassing both uniform and localized corrosion. Each grade has its designated area of use. Allowable working pressures are determined based on an S value of 20,000 psi (137.8 MPa) for ASTM A269 tubing at temperatures ranging from -20 to 100°F (-28 to 37°C).

ASTM A269 Chemical Composition:

ASTM A269 Chemical Composition (%, max)
Steel GradeCSiMnCrNiMoSP
TP3040,080,75218 - 208 - 11-0,030,04
TP304L0,0350,75218 - 208 - 13-0,030,04
TP3160,080,75216 - 1811 - 142 - 30,030,04
TP316L0,0350,75216 - 1810 - 152 - 30,030,04
TP3210,080,75217 - 209 - 13-0,030,04

ASTM A269 Mechanical Property:

ASTM A269 Mechanical properties
Steel GradeTensile Strength, N/mm2 (min)Yield Strength, N/mm2 (min)Elongation, % (min)
TP30451520535
TP304L48517035
TP31651520535
TP316L48517035
TP32151520535

Dimensions for ASTM A269 Steel Tube:

Sizes
NPS, inchOutside Diameter, mmWall Thickness, mmMax. Length, м
1/810,31,24; 1,73; 2,4012
1/413,71,65; 2,24; 3,02
3/817,11,65; 2,31; 3,20
1/221,31,65; 2,11; 2,77; 3,73
3/426,71,65; 2,11; 2,87; 3,91
133,41,65; 2,77; 3,38; 4,5510
1 1/442,41,65; 2,77; 3,56; 4,85
1 1/248,32,77; 3,68; 5,08
260,33,91; 5,547