We are an ASTM A269 TP304 stainless steel tubing manufacturer, both cold-drawn welded and seamless tubing are offered under ASTM A269, type TP 304 stainless steel is typical chrome 18 nickel 8 stainless steel, and it has high strength and excellent corrosion resistance. A269 304 stainless steel tubes can be used in high-pressure, high-temperature, low-pressure and low-temperature applications.
A269 304 Stainless Steel Tubing is used in Hydraulic and Instrumentation Tubing, annealed pickling or bright annealed finish are available on request, ASTM A269 304 tubing can be finished in large ranges of sizes, fractional sizes ranging from 1/8 in. to 5 inches, and metric tubing sizes range from 3.17 mm to 127 mm.
ASTM A269 TP304 Stainless Steel Tubing Specifications
| Standard | ASTM A269 |
|---|---|
| Grade | TP304 stainless steel |
| Tubing Type | Welded Tubing Seamless Tubing |
| Tubing Form | Coil Tubing Straight Tubing |
| Finishes | Annealing Pickling Bright Annealing Polished |
| Outside Diameter | 6.35 Mm To 127 Mm |
| Thickness | 0.51 Mm To 8 Mm |
ASTM A269 Specification
ASTM A269 specification covers nominal-wall-thickness, seamless and welded austenitic steel tubing for general corrosion resisting and low or high-temperature service, it is a common standard for stainless steel tubing, tubing is usually used in structure and machining purposes.
Heat Treatment
All tubing should be in solution condition, annealing is a critical procedure, it improves material properties, making tubing easy to fabricate and further process, for TP304 stainless steel, the minimum solution temperature should be 1040 degree, then rapidly cooling, bright annealed finish can be processed upon requirement.
Dimensions Tolerances
Stainless steel tubing dimensional permissible variations are controlled conforming to ASTM A260 specification, we offer close tolerance for special use, for example, instrumentation tubing usually requires tight tolerance.
| Outside Diameter, in. | OD Tolerance, in. | Wall Thickness | Length, in. |
|---|---|---|---|
| Up To 1/2 | ±0.005 | OD＜1/2, ±15% OD≥1/2, ±10% | OD＜1-1/2, +1/8 -0 OD≥1-1/2, +3/16, -0 |
| 1/2 To 1-1/2, Excl | ±0.005 | ||
| 1-1/2 To 3-1/2, Excl | ±0.010 | ||
| 3-1/2 To 5-1/2, Excl | ±0.015 | ||
| 5-1/2 To 8, Excl | ±0.030 | ||
| 8 To 12, Excl | ±0.040 | ||
| 12 To 14, Excl | ±0.050 |
A269 304 Stainless Steel
A269 304 stainless steel is noted as Austenitic steel, it is the most used stainless steel because of its excellent characteristics, it has good properties to resist corrosion, and TP304 grade has good weldability and forming properties to meet many conditions.
A269 304 Stainless Steel Chemical Composition, %
| Grade | C | Si | Mn | Cr | Ni | Mo | S | P | Fe |
|---|---|---|---|---|---|---|---|---|---|
| TP304 | 0,08 | 1,0 | 2 | 18 – 20 | 8 – 11 | – | 0,03 | 0,045 | Bal |
A269 304 Stainless Steel Mechanical Properties, Min
| Grade | Tensile Strength(Mpa) | Yield Point(Mpa) | Elongation(%) | Hardness(HRB) | Solution Temperature |
|---|---|---|---|---|---|
| TP304 | 515, min | 205, min | 35%, min | 90, max | 1040 Degree, min |
ASTM A269 TP304 Stainless Steel Tubing
We offer ASTM A269 TP304 stainless steel tubing for many industries, depending on specific use, welded and seamless can be selected on request, sometimes, dual certificate ASTM A213/A269 standard is for seamless tubes, ASTM A249/A269 for welded tubes.
Quality
Our team ensures A269 304 tubing is high quality, a complete of tests are conducted according to ASTM A269 standard, and other tests as per related standards.
- EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
- Raw Materials Certificate
- The Third-Party Inspection Report
- Fumigation Certificates
- Heat Treatment Charts
- Form A for Generalized System of Preferences (GSP)
- Manufacturer Test Certificate
- Moisture testing
- Surface roughness measurement
- Laboratory Test Certificate from Govt. Approved Lab
A269 Stainless Steel Tubing Tolerance in inches.
| OD, INCH | OD TOLERANCE INCH(MM) | WT TOLERANCE % | LENGTH TOLERanCE INCH(MM) | |
|---|---|---|---|---|
| + | – | |||
| ≤1 /2 | ± 0.005 ( 0.13 ) | ±15 | 1 /8 ( 3.2 ) | 0 |
| > 1 /2~1 1 /2 | ±0.005(0.13) | ±10 | 1 /8(3.2) | 0 |
| > 1 1 /2~< 3 1 /2 | ± 0.010(0.25) | ±10 | 3 /16(4.8) | 0 |
| > 3 1 /2~< 5 1 /2 | ± 0.015(0.38) | ±10 | 3 /16(4.8) | 0 |
| > 5 1 /2~< 8 | ± 0.030(0.76) | ±10 | 3 /16(4.8) | 0 |
| 8~< 12 | ± 0.040(1.01) | ±10 | 3 /16(4.8) | 0 |
| 12~< 14 | ± 0.050(1.26) | ±10 | 3 /16(4.8) | 0 |
Other Stainless Steels Chemical Composition
| SS GRADE | ASTM A269/SA 269 CHEMICAL COMPOSITION % MAXIMUM | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| C | MN | P | S | SI | CR | NI | MO | N B | NB | TI | |
| TP304 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | — | — | — | — |
| TP304L | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-12.0 | — | — | — | — |
| TP316 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | — | — | — |
| TP316L | 0.035 D | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-15.0 | 2.00-3.00 | — | — | — |
| TP321 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 | 9.0-12.0 | — | — | — | 5C -0.70 |
| TP347 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 | 9.0-12.0 | 10C -1.10 | — | ||