ASTM A270 / A270M – 15: Standard Specification for Seamless and Welded Austenitic and Ferritic/Austenitic Stainless Steel Sanitary Tubing
ASTM A270 / A270M – 15
Standard Specification for Seamless and Welded Austenitic and Ferritic/Austenitic Stainless Steel Sanitary Tubing
1. Scope
1.1 This specification covers grades of seamless, welded, and heavily cold worked welded austenitic and ferritic/austenitic stainless steel sanitary tubing intended for use in the dairy and food industry and having special surface finishes. Pharmaceutical quality may be requested, as a supplementary requirement.
1.2 This specification covers tubes in sizes up to and including 12 in. [300 mm] in outside diameter.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 Optional supplementary requirements are provided, and when one or more of these are desired, each shall be so stated in the order.
ASTM A249/A269/A270, JIS G3447/G3463, CNS 6668/7383 | ||||||||
Standard/Item | Outside Diameter | Thickness | Length | |||||
ASTM A249 | O.D .<< p=””> | 25mm | +0.10mm | , -0.11mm | ±10% | O.D. < 50.8mm +3.0mm | ||
25mm ≦ | O.D. ≦ | 40mm | ± 0.15mm | -0mm | ||||
40mm << p=””> | O.D. << p=””> | 50mm | ±0.20mm | O.D. ≧ 50.8mm +5.0mm | ||||
50mm ≦ | O.D. << p=””> | 65mm | ±0.25mm | -0mm | ||||
65mm ≦ | O.D. << p=””> | 75mm | ±0.30mm | |||||
75mm ≦ | O.D. ≦ | 100mm | ±0.38mm | |||||
100mm << p=””> | O.D. ≦ | 200mm | +0.38mm | , -0.64mm | ||||
200mm << p=””> | O.D. ≦ | 225mm | +0.38mm | , -1.14mm | ||||
ASTM A269 | O.D. << p=””> | 38.1mm | ±0.13mm | O.D. < 12.7mm ±15% | O.D. < 38.1mm +3.2mm | |||
38.1mm ≦ | O.D. << p=””> | 88.9mm | ±0.25mm | O.D. ≧ 12.7mm ±10% | -0mm | |||
88.9mm ≦ | O.D. << p=””> | 139.7mm | ±0.38mm | O.D. ≧ 38.1mm +4.8mm | ||||
139.7mm ≦ | O.D. << p=””> | 203.2mm | ±0.76mm | -0mm | ||||
ASTM A270 | O.D. ≦ | 25mm | ±0.13mm | ±12.5% | O.D. ≦ 100mm +3mm | |||
25mm << p=””> | O.D. ≦ | 50mm | ±0.20mm | -0mm | ||||
50mm << p=””> | O.D. ≦ | 75mm | ±0.25mm | O.D. > 100mm +5mm | ||||
75mm << p=””> | O.D. << p=””> | 140mm | ±0.38mm | -0mm | ||||
CNS 6668 | O.D. ≦ | 25.4mm | ± 0.15mm | ±10% | +10mm | |||
JIS G3447 | 25.4mm << p=””> | O.D. ≦ | 31.8mm | ± 0.16mm | -0mm | |||
31.8mm << p=””> | O.D. ≦ | 38.1mm | ± 0.19mm | |||||
38.1mm << p=””> | O.D. ≦ | 76.3mm | ± 0.25mm | |||||
76.3mm << p=””> | O.D. ≦ | 89.1mm | ± 0.30mm | , -0.40mm | ||||
89.1mm << p=””> | O.D. ≦ | 101.6mm | ± 0.35mm | , -0.40mm | ||||
101.6mm << p=””> | O.D. ≦ | 114.3mm | ± 0.40mm | , -0.60mm | ||||
114.3mm << p=””> | O.D. ≦ | 139.8mm | ± 0.40mm | , -0.80mm | ||||
139.8mm << p=””> | O.D. ≦ | 165.2mm | ± 0.40mm | , -1.20mm | ||||
JIS G3463 | O.D. << p=””> | 60mm | ±0.25mm | O.D. < 40mm | t < 2mm +0.4mm | O.D. ≦ 50mm + 7mm | ||
60mm ≦ | O.D. << p=””> | 80mm | ±0.30mm | -0.0mm | – 0mm | |||
80mm ≦ | O.D. << p=””> | 100mm | ±0.40mm | t ≧ 2mm +20% | O.D. > 50mm +10mm | |||
100mm ≦ | O.D. << p=””> | 120mm | +0.40mm | , -0.60mm | -0mm | -0mm | ||
120mm ≦ | O.D. << p=””> | 160mm | +0.40mm | , -0.80mm | O.D.≧ 40mm | 22% | ||
160mm ≦ | O.D. << p=””> | 200mm | +0.40mm | , -1.20mm | -0mm | |||
200mm ≦ | O.D. | +0.40mm | , -1.60mm | |||||
