ASTM A269 TP304 Cold Rolled Bright Annealed Tube
Shape：round
Technique：Cold Rolled
Surface Treatment：Sanded /Mirror/Hairline Brushed
Thickness：0.3-30mm
out Diameter：8-219mm
Length：5.8/6m or Custom
Stock：in Stock
Sample：Available
Transport Package：Standard Sea-Worthy Packing
ASTM A269 TP304 Cold Rolled pipe supplier
If you are looking for high-precision ASTM A269 TP304 Cold Rolled Bright Annealed Tube, we supply premium seamless tubes compliant with ASTM A269, ASTM A249, and ASME SA269 standards. Designed to solve common issues in instrumentation and sanitary systems ,such as poor surface finish, unstable dimensional accuracy, excessive roughness, and operational instability ,our products deliver reliable performance in critical applications.
The ASTM A269 TP304 BA Tube features a round, seamless structure with a clean, oxide-free surface, suitable for continuous operation at temperatures up to 425 °C. Produced through a controlled-atmosphere cold rolling + bright annealing (BA) process, the ASTM A269 TP304 Cold Rolled Tube offers mirror-like internal and external finishes with roughness Ra ≤ 0.4 μm, tight dimensional tolerances within ±0.03 mm for both outer diameter and wall thickness, and hardness precisely controlled to ≤90 HRB, ensuring excellent formability and weldability.
Our ASTM A269 TP304 Instrumentation Tube is widely used in instrument tubing, pneumatic/hydraulic systems, food & beverage equipment, pharmaceutical machinery, semiconductor piping, and precision heat transfer applications. Compared with 316L, TP304 offers higher cost-effectiveness in general-purpose clean systems, combining good corrosion resistance, superior machinability, and enhanced system stability.
Every ASTM A269 TP304 High Precision Tube undergoes comprehensive quality checks , including eddy current testing, hydrostatic testing, chemical composition analysis, and mechanical property reports ,to ensure low fluid resistance, anti-scaling, and easy cleaning. It is especially suited for preventing product contamination and minimizing unscheduled downtime in industries such as semiconductors, high-purity gas, pharmaceuticals, and food & beverage.
Applications of 304 Stainless Steel Instrument Tubing
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 TP304 Tube Heat Treatment Requirements
| Parameter | Requirement | Description |
|---|---|---|
| Standard | ASTM A269 / ASME SA269 | Standard specification for seamless and welded austenitic stainless steel tubing |
| Material Grade | TP304 | Austenitic stainless steel |
| Heat Treatment Method | Solution Annealing | Tubes must be heat treated to achieve optimal corrosion resistance and mechanical properties |
| Annealing Temperature | 1040°C – 1150°C (1900°F – 2100°F) | Typical solution annealing temperature range for TP304 |
| Cooling Method | Rapid Cooling (Water Quenching or Air Cooling) | Prevents carbide precipitation and intergranular corrosion |
| Surface Condition | Bright Annealed (BA) or Pickled | Surface finish depending on manufacturing process |
SA269 tubing Tolerance
| OD, INCH | OD TOLERANCE INCH(MM) | WT TOLERANCE % | LENGTH TOLERNACE 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 |
GNEE Stainless Steel is a manufacturer of ASTM A269 TP304 stainless steel pipe, offering cold-drawn welded and seamless tubing conforming to ASTM A269 standards. A269 TP304 stainless steel pipe is used for hydraulic and instrumentation tubing and is available with either an annealed, pickled, or bright annealed finish upon request. ASTM A269 TP304 stainless steel pipe is available in a variety of sizes, with fractional sizes ranging from 1/8 inch to 5 inches and metric sizes from 3.17 mm to 127 mm.
inspection
We implement comprehensive, end-to-end quality control measures. For every batch of products, we provide EN10204 3.1/3.2 material certificates and PMI composition reports; furthermore, each batch undergoes eddy current, hydrostatic, and pneumatic testing, as well as intergranular corrosion testing, to ensure consistent quality across the entire lot.
TP304 seamless stainless steel Tube Factory
Leveraging a monthly production capacity of several hundred tons and ample stock of ASTM A269 TP304 cold-rolled BA tubes, we support FOB and CIF export terms. Deliveries for standard specifications can be completed within 7 to 15 days, thereby helping you effectively mitigate inventory and lead-time risks.
high quality packaging
Each tube is wrapped in plastic film and fitted with plastic end caps at both ends, then packed into a wooden crate. (Vacuum annealing and demagnetization services are available upon request.)
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