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

Related News

  • * 暂无相关文章
العربية简体中文NederlandsEnglishFrançaisDeutschItaliano한국어РусскийEspañolไทยTürkçe