| Products ....
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HIGHLIGHTS OF ASTM SPECIFICATIONS
FOR STAINLESS STEEL TUBES & PIPES
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Specification
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Allowable Outside Diameter
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Allowable Wall
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Exact Length
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Testing
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Variations in mm
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Tickness Variations
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Tolerances in mm
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Product Analysis
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Diameter
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Over
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Under
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Over %
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Under %
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Over
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Under
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.
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.
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25.4
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0.05
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0.20
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12.5
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-12.5
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3.2
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0
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Reverse Flattening test
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ASTM A-270
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38.1
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0.05
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0.20
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12.5
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-12.5
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3.2
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0
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100% Hydrostatic test
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Seamless & Welded
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50.8
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0.05
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0.28
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12.5
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-12.5
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3.2
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0
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External Polish on all tubes
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Sanitary Tubing
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63.5
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0.05
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0.28
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12.5
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-12.5
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3.2
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0
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.
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.
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76.2
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0.08
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0.30
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12.5
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-12.5
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3.2
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0
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Refer to ASTM A - 270
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.
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101.6
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0.08
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0.38
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12.5
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-12.5
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3.2
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0
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.
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Under 25.4
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0.1016
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0.1016
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10
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-10
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3.175
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0
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Tension Test
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ASTM A - 249
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24.4-38.1 incl.
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0.1524
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0.1524
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10
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-10
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3.175
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0
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Flattening Test
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Welded Boiler
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38.1-50.8 excl.
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0.2032
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0.2032
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10
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-10
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3.176
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0
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Flare Test/Flange Test
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Superheater
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50.8-63.5 excl.
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0.2540
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0.2540
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10
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-10
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4.76
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0
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* Reverse Bend Test
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Heat
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63.5-76.2 excl.
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0.3048
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0.3048
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10
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-10
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4.76
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0
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Hardness Test
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Exchanger and
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76.2-101.6 incl.
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0.3810
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0.3810
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10
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-10
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4.76
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0
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100% Hydrostatic Test
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Condenser Tubes
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Minimum Wall tubes
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* Reverse Flattening Test
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18% - 0 available
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Refer to ASTM A - 270
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on request
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* wherever applicable
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13.7-48.3 incl.
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0.40
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0.79
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Minimum Wall 12.5 %
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6.4
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0
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Tenstion Test
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ASTM A - 312
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48.3-114.3 incl.
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0.79
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0.79
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Under nominal wall
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6.4
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0
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Flattening Test
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Seamless & Welded
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114.3-220. Incl.
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1.60
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0.79
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specified
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6.4
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0
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100% Hydrostatic Test
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(Normally Random
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Refer to ASTM A - 530
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lengths ordered)
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Upto 12.7
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0.13
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0.13
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15
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-15
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3.2
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0
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Flare Test
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.
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12.7-38.1
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0.13
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0.13
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10
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-10
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3.2
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0
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Flange Test (Welded only)
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ASTM A - 269
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38.1-88.9 excl.
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0.25
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0.25
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10
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-10
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4.8
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0
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Hardness Test
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Seamless & Welded
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88.9-139.7 excl.
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0.38
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0.38
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10
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-10
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4.8
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0
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Reverse Flattening test
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Service
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139.7-203.2 excl.
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0.76
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0.76
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10
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-10
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4.8
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0
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(welded only)
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100% Hydrostatic test
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Refer to ASTM A - 269
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Under 25.4
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0.1016
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0.1016
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20
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0
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3.175
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0
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Tension Test
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ASTM A - 213
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24.4-38.1 incl.
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0.1524
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0.1524
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20
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0
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3.175
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0
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Flattening Test
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Seamless Boiler,
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38.1-50.8 excl.
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0.2032
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0.2032
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22
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0
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3.176
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0
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Flare Test
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Superheaterand
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50.8-63.5 excl.
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0.2540
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0.2540
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22
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0
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3.76
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0
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Hardness Test
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Heat Exchanger
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63.5-76.2 excl.
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0.3048
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0.3048
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22
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0
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4.76
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0
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100% Hydrostatic test
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Tubes
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76.2-101.6 incl.
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0.3810
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0.3810
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22
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0
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4.76
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0
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Refer to ASTM A - 450
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Under 12.7
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0.13
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0.13
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15
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-15
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3.2
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0
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Tension Test, Flare Test
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ASTM A - 268
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12.7-38.1 excl.
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0.13
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0.13
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10
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-10
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3.2
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0
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Flange Test (ERW only)
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Seamless & Welded
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38.1-88.9 excl.
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0.25
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0.15
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10
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-10
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4.8
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0
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Hardness Test
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Ferrtic Stainless
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88.9-168.3 excl.
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0.38
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0.38
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10
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-10
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4.8
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0
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Reverse Flattening test
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Steel tubes
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100% Hydrostatic test
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Transvers tension test,
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ASTM A - 358
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Transverse guided bend
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For welded big
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For all size
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0.5%
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-0.5%
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No
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-0.3
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Customer's
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test. Hydrostatic Test,
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Diameter Pipes
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LIMIT
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mm
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Specification
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radiographic examition (as
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specified) dye penetrant
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.
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(optional).
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ASTM A - 688
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Under 25.4
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0.1016
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0.1016
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20
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0 (for Min
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3 to 13
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0
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Tension, Hardness,
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For welded Feed
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wall thk)
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corrosion, Reversebend
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water heater
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10(for Avg
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Flange, Flattening,
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U' Tubes
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wall thk)
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Hydrostatic Test, Pneumatic
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Test, Non Destructive Test
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