polished_tubing

3A ASTM A270 Bright Annealed Polished Sanitary Tubing

Product Description

Sanitary tubing plays a critical role in the food, beverage, and dairy industries, where strict hygiene standards must be met. Our polished stainless steel sanitary tubing is produced in compliance with ASTM A270, a recognized industry standard. We use cold-rolled stainless steel strip that is chemically controlled to optimize weldability. The resulting weld bead is meticulously cold-worked to achieve a finished product that is free of any visible longitudinal welds. Bright annealing follows in a controlled atmosphere to preserve maximum structural integrity.

Size List

Size OD Tolerances, OD Wall thickness Tolerances on wall thickness Tolerances on Length Weight Kg/M
1/2"(12.7) +/-0.005"(0.13) 0.065"(1.65) +/-10.0% +1/8"(3.18) 0.4571
3/4"(19.1) +/-0.005"(0.13) 0.065"(1.65) +/-10.0% +1/8"(3.18) 0.7218
1"(25.4) +/-0.005"(0.13) 0.065"(1.65) +/-10.0% +1/8"(3.18) 0.9824
1-1/4"(31.8) +/-0.008"(0.20) 0.065"(1.65) +/-10.0% +1/8"(3.18) 1.2412
1-1/2"(38.1) +/-0.008"(0.20) 0.065"(1.65) +/-10.0% +1/8"(3.18) 1.5078
2"(50.8) +/-0.008"(0.20) 0.065"(1.65) +/-10.0% +1/8"(3.18) 2.0331
2-1/2"(63.5) +/-0.010"(0.25) 0.065"(1.65) +/-10.0% +1/8"(3.18) 2.5585
3"(76.2) +/-0.010"(0.25) 0.065"(1.65) +/-10.0% +1/8"(3.18) 3.0797
4"(101.6) +/-0.015"(0.38) 0.065"(1.65) +/-10.0% +1/8"(3.18) 5.2628
6"(152.4) +/-0.030"(0.76) 0.083"(2.11) +/-10.0% +3/16"(4.8) 7.9116
6"(152.4) +/-0.030"(0.76) 0.109"(2.77) +/-10.0% +3/16"(4.8) 10.3909
8"(203.2) +0.061"(1.55)-0.031"(0.79) 0.109"(2.77) +/-10.0% +3/16"(4.8) 13.9166

Surface Finish

・ All polished tubing meet or exceed A270, 3A, A270-S2. ISO/TS 16959:2009 Registered Quality Management System.
・ CC/BC – inside and outside pickled
・ CD/BD – inside pickled, outside polished
・ Inside polished & Outside polished
・ Polished, Annealed, Inside bead removed

A270-sanitary-tube-surface-finish

Material Composition

BAOSTEEL, TISCO, POSCO, KRUPP STAINLESS…
304 (1.4301)
304L (1.4307)
316 (1.4401)
316L (1.4404)

Elements 304(wt%) 304L(wt%) 316L(wt%)
(C) Carbon,Max. 0.08 0.035 0.035
(Mn) Manganeso,Max. 2.00 2.00 2.00
(P) Phosphorus,Max. 0.04 0.04 0.04
(S) Sulfur,Max. 0.03 0.03 0.030*
(Si) Sillicon,Max, 0.75 0.75 0.75
(Ni) Nickel 8.0-11.0 8.0-13.0 10.0-15.0
(Cr) Chromium 18.0-20.0 18.0-20.0 16.0-18.0
(Mo) Molybdenum NA NA 2.0-3.0
(Fe) Iron Bal. Bal. Bal.
(Cu) Coppor NA NA NA
(N) Nitrogen NA NA NA

Executive Standard

Testing and Packaging

To assure strict accordance with ASTM A270 and 3A, Sanitube tubing is subjected to extensive reverse bend, reverse flattening, flange, and eddy current testing. After successfully completing testing, tubes are sealed with air tight end caps and individually packaged in high quality poly sleeves. Tubes are then packaged in heavy-duty tri-wall boxing. Wood boxes are available for export shipments when specified.

Application

Biological engineering industry, food industry, pharmaceutical industry, purified water industry, electronic engineering industry, chemical fiber industry, chemical industry, paper making industry, the beer industry, highly-purified gasses industry, cosmetics industry, etc.

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