ASTM A269/ASME SA269 TP316L BA TUBES Bright Annealing Tubing,instrumentation tubing
China Professional manufacturer and supplier of ASTM A269/ASME SA269 TP316L BA TUBES Bright Annealing Tubing,instrumentation tubing.
| A269 TP316L Stainless Steel Seamless Tubing | ||||||||||
| Outside Diameter | 3.2-25.4mm | |||||||||
| Wall Thickness | 0.2-2.5mm | |||||||||
| Length | As customer’s requirement;. | |||||||||
| Standard | ASTM A213/ ASME SA213, ASTM A269/ASME SA269, EN10216-5, etc. | |||||||||
| Grade | TP304, TP304L, TP316, TP316L, TP321, TP247H, etc. | |||||||||
| Delivery Condition | Pickled, Polished, Bright Annealed，EP | |||||||||
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specification for seamless and welded
A bright annealed finish is produced by heat-treating (annealing) in a controlled atmosphere furnace. It has a bright, reflective appearance, but may have some cloudiness and other imperfections. This particular finish is most often applied to stainless steel and viewed as a lower cost alternative to buffed (#7 or #8) mirror finish.
Bright annealed Tube
For bright annealing to be effective, We do the tube surfaces clean and free of foreign matter before annealing. And we keep the furnace annealing atmosphere is relatively free of oxygen (if a bright result is desired). This is accomplished by removing nearly all gas (creating a vacuum) or by displacement of oxygen and nitrogen with dry hydrogen or argon.
Our Bright annealed tubes are commonly used in the aerospace and medical industries, as well as in instrument and automotive applications. Vacuum bright annealing produces extremely clean tube.
ASTM A269 Standard Seamless Tube Chemical Composition
| ASTM A269 Seamless Tubing Grades | UNS | C | Mn | P | S | Si | Cr | Ni | Mo |
| ASTM A269 304 | S30400 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-11.0 | |
| ASTM A269 304L | S30403 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-13.0 | |
| ASTM A269 316 | S31600 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 11.0-14.0 | 2.0-3.0 |
| ASTM A269 316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
ASTM A269 Electropolish Tube Mechanical Properties
| Material | Heat | Temperure | Tensile Strength | Yield Strength | Elongation %, Min |
| Treatment | Min. | Ksi (MPa), Min. | Ksi (MPa), Min. | ||
| º F(º C) | |||||
| ASTM A269 304 | Solution | 1900 (1040) | 75(515) | 30(205) | 35 |
| ASTM A269 304L | Solution | 1900 (1040) | 70(485) | 25(170) | 35 |
| ASTM A269 316 | Solution | 1900(1040) | 75(515) | 30(205) | 35 |
| ASTM A269 316L | Solution | 1900(1040) | 70(485) | 25(170) | 35 |
| Normal Size | |||||
| OD 3/16” | WT0.02” | 4.76×0.51mm | OD3/16” | WT0.028” | 4.76×0.71mm |
| OD3/16” | WT0.035” | 4.76×0.89mm | OD3/16” | WT0.049” | 4.76×1.24mm |
| OD0.24” | WT0.04” | 6x1mm | OD0.24” | WT0.06” | 6×1.5mm |
| OD1/4” | WT0.02” | 6.35×0.51mm | OD1/4” | WT0.028” | 6.35×0.71mm |
| OD1/4” | WT0.035” | 6.35×0.89mm | OD1/4” | WT0.049” | 6.35×1.24mm |
| OD1/4” | WT0.065” | 6.35×1.65mm | OD5/16” | WT0.028” | 7.94×0.71mm |
| OD5/16” | WT0.035” | 7.94×0.89mm | OD5/16” | WT0.049” | 7.94×1.24mm |
| OD5/16” | WT0.065” | 7.94×1.65mm | OD3/8” | WT0.028” | 9.53×0.71mm |
| OD3/8” | WT0.035” | 9.53×0.89mm | OD3/8” | WT0.049” | 9.53×1.24mm |
| OD3/8” | WT0.065” | 9.53×1.65mm | OD0.4” | WT0.04” | 10x1mm |
| OD0.4” | WT0.06” | 10×1.5mm | OD0.4” | WT0.079” | 10x2mm |
| OD0.47” | WT0.065” | 12x1mm | OD0.47” | WT0.06” | 12×1.5mm |
| OD1/2” | WT0.028” | 12.7×0.71mm | OD1/2” | WT0.035” | 12.7×0.89mm |
| OD1/2” | WT0.049” | 12.7×1.24mm | OD1/2” | WT0.065” | 12.7×1.65mm |
| OD0.55” | WT0.04” | 14x1mm | OD0.55” | WT0.06” | 14×1.5mm |
| OD5/8” | WT0.028” | 15.88×0.71mm | OD5/8” | WT0.035” | 15.88×0.89mm |
| OD5/8” | WT0.049” | 15.88×1.24mm | OD5/8” | WT0.065” | 15.88×1.65mm |
| OD5/8” | WT0.083” | 15.88×2.11mm | OD0.63” | WT0.065” | 16x1mm |
| OD0.63” | WT0.06” | 16×1.5mm | OD0.63” | WT0.079” | 16x2mm |
| OD3/4” | WT0.04” | 19.05x1mm | OD3/4” | WT0.049” | 19.05×1.24mm |
| OD3/4” | WT0.065” | 19.05×1.65mm | OD3/4” | WT0.083” | 19.05×2.11mm |
| OD1” | WT0.049” | 25.4×1.24mm | OD1” | WT0.0665” | 25.4×1.65mm |
| OD1” | WT0.083” | 25.4×2.11mm | OD1” | WT0.1” | 25.4×2.54mm |
