Project Description

ASTM A269 TP304 TP304L TP316 TP316L Seamless, Welded Stainless Steel Tubing

ASTM A269 TP304 TP304L TP316 TP316L is the standard including seamless and welded stainless tubing.

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ASTM A269 Covers grades of nominal-wall thickness, stainless steel tubing for general corrosion-resisting and low-or high-temperature services, as designated in standard.

ASTM A269 Stainless tubing sizes and thicknesses usually furnished to this specification are 1/4 in. (6.4mm) in inside diameter and larger and 0.020 in.(0.51mm) in nominal wall-thickness and heavier.

Standard: ASTM A269.

Grade: TP304, TP304L, TP304LN, TP316, TP316L, TP316LN TP317, TP321, TP347, TP348, S31254.

Description Name: ASTM A269 seamless stainless tube, ASTM A269 welded seamless stainless tubes, ASTM A269 seamless stainless tubes, ASTM A269 welded seamless stainless tubes, TP304 TP304L TP304H stainless tubes, TP309S TP309H stainless tubes, TP310S TP310H stainless tubes, TP316 TP316L stainless tubes. TP321 TP321H stainless tubes, TP347 TP347H stainless tubes, seamless stainless tubes, welded stainless tubes, seamless stainless tube, welded stainless tube.

Seamless Stainless-Steel Tubes:

Size: 1/8” to 24” (10.3mm to 610mm).

Schedules:

10s, 20, 40s, 40, 60, 80s, 80, 100, 120, 140, 160, XXH.

Click to download the details of ASTM A269 Stainless Steel Tubes.

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Wall Thickness: 1mm to 60mm.

GradeSpecification
TP304/TP340L/TP304LNASTM A269
TP316/TP316L/TP316LNASTM A269
TP317ASTM A269
TP321ASTM A269
TP347ASTM A269
TP348ASTM A269
S31254ASTM A269

Welded stainless steel pipe

Size:1/8” to 36” (10.3mm to 914mm)

Schedules:

5s, 10s, 20, 40s, 40, 60, 80s, 80

Wall Thickness: 1mm to 12.7mm

GradeSpecification
TP304/TP340L/TP304LNASTM A269
TP316/TP316L/TP316LNASTM A269
TP317ASTM A269
TP321ASTM A269
TP347ASTM A269
TP348ASTM A269
S31254ASTM A269

Shape: Round.

Length: Single random length, double random length or as customer’s actual request.

Referenced Documents:

ASTM Referenced Standards

A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels.

A370 Test Methods and Definitions for Mechanical Testing of Steel Products.

A480 A480M Specification for general requirements for Flat-rolled stainless and Heat-Resisting steel plate, sheet, and strip.

A632 Specification for Seamless and welded austenitic stainless-steel tubing (small-diameter) for general service.

A1016 A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless-Steel Tubes.

E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS).

Chemical Composition:

GradeUNS
Design
Composition, %
CMnPSSiCrNiMoTiNbNCuCeBAl
TP304S304000.0820.0450.03118.0–208.0–11. . .. . .. . .. . .. . .. . .
TP304LS304030.03520.0450.03118.0–208.0–13. . .. . .. . .. . .. . .. . .
TP304LNS304530.03520.0450.03118.0–208.0–11. . .. . .. . .0.10-0.16. . .. . .
TP316S316000.0820.0450.03116.0–1810.0–142.00–3. . .. . .. . .. . .. . .
TP316LS316030.03520.0450.03116.0–1810.0–152.00–3. . .. . .. . .. . .. . .
TP316LNS316530.03520.0450.03116.0–1810.0–13. . .. . .. . .0.10-0.16. . .. . .
TP317S317000.0820.0450.03118.0–2011.0–153.0–4. . .. . .. . .. . .. . .
TP321S321000.0820.0450.03117.0–199.0–12. . .. . .. . .. . .. . .. . .
TP347S347000.0820.0450.03117.0–199.0–13. . .. . .. . .. . .. . .. . .
TP348S348000.0820.0450.03117.0–199.0–12.0. . .0.10. . .. . .. . .. . .C:

0.20

max

. . .S312540.02020.0450.035119.5–20.517.5-18.56.0-6.5. . .. . .0.18-0.220.50-1.50. . .. . .

Heat Treatment Requirements

  • All material shall be furnished in the heat-treated condition. Except as provided in 6.2, the heat-treatment procedure shall, except for S31254 and S32654, S24565, N08367, N08904 and N08926, consist of heating the material to a minimum temperature of 1900°F (1040°C) and quenching in water or rapidly cooling by other means. Alternatively, for seamless tubes, immediately following hot forming while the temperature of the tubes is not less than the specified minimum solution treatment temperature, tubes may be individually quenched in water or rapidly cooled by other means.
  • Controlled structural or special service characteristics shall be specified as a guide for the most suitable heat treatment. If the final heat treatment is at a temperature under 1900°F and is so specified on the order, each tubes shall be stenciled with the final heat treatment temperature in degrees Fahrenheit after the suffix ”HT”.
  • S31254 and S32654 shall be heat-treated to a minimum temperature of 2100°F (1150°C) followed by quenching in water or rapidly cooling by other means.
  • S24565 SHALL BE HEAT-TREATED IN THE RANGE 2050°F (1120°C) to  2140°F (1170°C) followed by quenching in water or rapidly cooling by other means.
  • N08904 shall be heat treated to a minimum temperature of 2000°F (1100°C) followed by quenching in water or rapidly cooling by other means.
  • A solution annealing temperature above 1950°F (1065°C) may impair the resistance to intergranular corrosion after subsequent exposure to sensitizing conditions in TP321, TP347, and TP348. When specified by the purchaser, a lower temperature stabilization or re-solution anneal shall be used subsequent to the initial high temperature solution anneal.
  • N08926 shall be heat-treated to a minimum temperature of 2010°F (1100°C) followed by quenching in water or rapidly cooling by other means.
  • UNS N08367 should be solution annealed from 2025°F (1107°C)minimum followed by rapid quenching.
  • Solution annealing of S35045 shall consist of heating the material to a temperature of 2000°F (1093°C) minimum for an appropriate time, followed by cooling in still air or at a faster rate.

Tensile Requirements

GradeUNS
Designation
Tensile Strength, Min. Ksi [MPa]Yield Strength, Min. Ksi [MPa]Others
TP304S3040075 [515]30 [205]
TP304LS3040370 [485]25 [170]
TP316S3160075 [515]30 [205]
TP316LS3160370 [485]25 [170]
TP317S3170075 [515]30 [205]
TP321S3210075 [515]30 [205]welded & seamless
TP347S3470075 [515]30 [205]
TP347HS3470975 [515]30 [205]

Flaring Test (Seamless Tubes)

One test shall be made on specimens from one end of one tube from each lot of finished tubes.

Flange Test (Welded Tubes)

One test shall be made on specimens from one end of one tube from each lot of finished tubes.

Hardness Test

Brinell or Rockwell hardness determination shall be made on specimens from two tubes from each lot. The term lot applies to all tubes prior to cutting, of the same nominal diameter and wall thickness that are produced from the same heat of steel. When final heat treatment is in a batch-type furnace, a lot shall include only those tubes of the same size and the same heat which are heat treated in the same furnace charge. When the final heat treatment is in a continuous furnace or when the heat-treated condition is obtained directly by quenching after hot forming, a lot shall include all tubes of the same size and heat, heat treated in the same furnace at the same temperature, time at heat, and furnace speed, or all tubes of the same size and heat, hot formed and quenched in the same production run.

Reverse flattening Test

For welded tubes, one reverse flattening test shall be made on a specimen from each 1500ft(460m) of finished tubing. Coiled tubing greater than 1500ft(450m) in length shall be sampled at both ends, a coil must be continuous without any circumferential butt welds.

Hydrostatic or Nondestructive Testing

Each pipe shall be subjected to the nondestructive electric test or the hydrostatic test.

Markings

  • Markings will adhere to prescribed specifications in A1016/A 1016M and shall include whether the tubing is seamless or welded and the final heat-treatment temperature in digress Fahrenheit after the suffix” if the final heat treatment temperature is under 1900°F (1040°C).
  • When the nondestructive electric test is performed, each length of tubing shall be marked with the letters “NDE” and the certification, when required, shall also indicate this test.

Note:

  • Mill test certificates will be issued according to EN10204.3.
  • All tubes shall be supplied as per applicable ASTM A269 Specification.

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ASTM A269 PHOTOS

ASTM A269 Seamless Stainless Tubes

ASTM A269 Seamless Stainless Tubes

ASTM A269 Welded Stainless Tubes

ASTM A269 Welded Stainless Tubes

 

Packing and Marking

  • Packed in bundles or ply wooden box wrapped in plastic, and suitably protected for sea-worthily delivery or as requested.

Packing photos:

ASTM A269 Stainless Tubes Stock in the warehouse

ASTM A269 Stainless Tubes Stock

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Tel.: +86 185 5109 0083 | E-mail: cts@ctstubes.com

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