BA Tube
BA (Bright Annealed) seamless stainless steel tube is produced from precision cold-drawn seamless pipe with bright annealing under protective atmosphere, delivering a mirror-like surface, excellent dimensional accuracy and outstanding cleanliness. It is widely used in semiconductor, pharmaceutical, food & beverage, instrumentation and other high-purity industries where surface finish and inner cleanliness are critical.
BA Tube
Bright annealed stainless steel tube for ultra-high-purity, semiconductor and instrumentation systems.
Product Overview
Bright Annealing (BA) tube is cold-rolled and bright annealed in a protective atmosphere, producing a clean, bright surface on both the inside and outside with an inner roughness of about Ra 0.45 μm. The tight tolerance and high cleanliness make it the first choice for high-purity gas, semiconductor and pharmaceutical systems.
Product Gallery
Key Features
- Inner surface roughness Ra ≈ 0.45 μm, bright and clean
- Tight dimensional tolerance, imperial & metric sizes
- Degreased, oil-free and clean on inner & outer walls
- Excellent for ultra-high-purity and corrosive media
- Full NDT: eddy current, hydraulic and ultrasonic
- EN / ASTM / GB compliant, mill test certificate supplied
Technical Specifications
| Material | 304, 316, Monel400, 904L, Incoloy825/800, Inconel600/625, HC276 |
| OD Range | 3 mm – 50.8 mm |
| Wall Thickness | 0.5 mm – 3 mm |
| Inner Roughness | Ra ≈ 0.45 μm |
| Process | Cold-rolled & bright annealed (BA) |
| Tolerance | Tight tolerance, ASTM A213 / A269, EN 10216-5 (TC1, D4/T3) |
| NDT | Eddy current / hydraulic / ultrasonic testing |
| Applications | Analytical instruments, semiconductor, LCD, solar, pharmaceutical, instrumentation, ultra-high-purity gas, chemical systems, WFI |
| Packaging | Single tube in single bag, end caps, anti-vibration and dust-proof |
Imperial BA Tube Selection (inch)
| OD (inch) | Wall (inch) | Ordering Code |
|---|---|---|
| 1/8 | 0.028 | SMT 1/8X0.028-316L-BA |
| 1/4 | 0.035 | SMT 1/4X0.035-316L-BA |
| 1/4 | 0.049 | SMT 1/4X0.049-316L-BA |
| 3/8 | 0.035 | SMT 3/8X0.035-316L-BA |
| 3/8 | 0.049 | SMT 3/8X0.049-316L-BA |
| 1/2 | 0.035 | SMT 1/2X0.035-316L-BA |
| 1/2 | 0.049 | SMT 1/2X0.049-316L-BA |
| 5/8 | 0.049 | SMT 5/8X0.049-316L-BA |
| 3/4 | 0.049 | SMT 3/4X0.049-316L-BA |
| 1 | 0.065 | SMT 1X0.065-316L-BA |
Metric BA Tube Selection (mm)
| OD (mm) | Wall (mm) | Ordering Code |
|---|---|---|
| 3 | 0.5 | SMT 3X0.5-316L-BA |
| 4 | 0.5 | SMT 4X0.5-316L-BA |
| 6 | 0.5–1.0 | SMT 6X1-316L-BA |
| 8 | 0.5–1.0 | SMT 8X1-316L-BA |
| 10 | 0.5–1.0 | SMT 10X1-316L-BA |
| 12 | 0.5–1.0 | SMT 12X1-316L-BA |
| 14 | 1.0–2.0 | SMT 14X2-316L-BA |
| 16 | 1.0–2.0 | SMT 16X2-316L-BA |
| 18 | 1.0–2.0 | SMT 18X2-316L-BA |
| 25 | 1.0–3.0 | SMT 25X3-316L-BA |
Need a Custom Specification or a Quote?
Contact our export team: export@sunlightintech.com | +86-21-XXXX-XXXX
