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This document summarizes key specifications from various ASTM standards for stainless steel tubes and pipes. It provides allowable tolerances for outside diameter, wall thickness, length, and testing requirements for different material sizes under standards including ASTM A-270, A-249, A-312, A-269, A-213, A-268, and A-358. The table lists specification details like diameter ranges, diameter and thickness variation limits, length tolerances, and mandated test procedures for each standard based on material size.

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BAG.DA srEELpRoJEcr @| HIGHLIGHTS OFASTM SPECIFICATION FOR STAINLESS STEET TUBES AND PIPES Allowable Outside Diameter Allowable wall Specification Exact Length Testing Varialion in mm Thickness Variation Tolerences in mm I Specification Diameter Over Under OverYo Under% Over Under Testing ASTM .270 25.4 .05 .20 +12.5 -12.5 3.2 0 Reverse Flattering test Seamless & Welded 38.1 .05 .20 +12.5 -12_5 3.2 0 100% Hydrostatic test Sanitary Tubes 50.8 .05 - .28 +12.5 -12.5 3.2 0 External polish on all 63.5 .05 .28 +12.5 -12.5 3.2 0 tubes 76.2 .08 .30 +12.5 -12.5 3.2 0 Refer to ASTM A - 270 101 .6 .08 .38 +12.5 -12.5 3.2 0 ASTM A - 249 Under 25.4 + 10 0.1 016 0.1016 -10 3.175 0 Tension Test, Welded Boiler, 25.4-38.1incl 0.1524 0.1524 +10 -10 3.175 0 Fletting test Superheater, Heat 38.1 -50.8 excl. 0.2032 0.2032 +10 -10 3.175 0 Flare Test 50.8-63.5 excl. + 10 0.25.40 0.25.40 -10 3.76 0 * Reverse Bend Test Exchanger and 63.5-76.2 excl. 0.3048 0.3048 +10 -10 4.76 0 Hardness Test Condenser Tubes 76.2-10'1.6 incl. 0.3810 0.3810 +10 -10 4.76 0 1 00% Hydrostatic Test *Reverse Flattering Test Refer to ASTM A - 450 Whenever applicable ASTM A - 312 13.7 - 48.3 incl. 0.40 0.79 Minimum Wall tubes 6.4 Seamless & U Tension Test Welded Pipes 48.3-114.3 incl. 114.3-220 incl. 0.79 1.59 0.79 0.79 12.5% under nominal 6.4 o Fletting Test wall Specified 100% Hydrostatic Test 1u##tty nanoom tengths or?ered) ASTM A - 269 Seamless & Upto 12.7 0.13 0.13 +15 15 3.2 o Tension Test Welded Service 12.7 -38.1 exct. 38.1 -88.9 exct. 0.13 0.13 +'10 10 3.2 o Flange Test 88.9 -139.7 excl. 0.25 0.25 +10 IU 4.8 0 (Welded only) 139.7 - 203.2 exct. 0.38 0.38 +10 10 4.8 o Hardness Test 0.76 0.76 +10 10 4.8 o Reverse Flatterning test (Welded only) 100% Hydrostatic Test Refer to ASTMA-269 ASTM A- 213 Upto 25.4 Seamless Boiler, 25.4 -38.1 incl. 0.1 01 6 0.1524 0.1016 +20 -0 3.175 0 Tension Test Superheater and 38.1 -50.8 exct. 0.1524 +20 -U 3.175 0 Flattening Test Heat Exchanger 50.8 - 63.5 encl. 0.2032 0.2540 0.2032 +22 -n 3.176 0 Hardness test Tubes 63.5 - 73.2 excl. 0.2540 +22 -0 3.760 0 '100% Hydrostatic Test 76.2 - 101 .6 inct. 0.3048 0.3048 +22 -0 4.760 0 0.3810 0.3810 +22 -0 4.760 0 Refer to ASTMA - 450 ASTM A - 268 Upto 12.7 0.13 0.13 +15 -15 3.2 0 Tension Test Seamless & 12.7 -38.1 excl. 0.13 0.13 +10 -10 3.2 0 Flange Test CERW onlv Welded 38.1 - 88.9 excl. 0.25 0.25 +10 -10 4.8 0 Hardness Test Femtic Stainless Steel tubes 88.9 -168.9 excl. 0.38 0.38 +10 -10 4.8 n Reverse Flattering Test 100% Hydrostate Test ASTM A - 358 For all size +0.5% 0.5Y0 No -0.3 Customer's For Welded big Limit mm Specification Diameter Pipes E-mail : bagoda@vsnl.net www bagodasteelproject.com

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  • 1. BAG.DA srEELpRoJEcr @| HIGHLIGHTS OFASTM SPECIFICATION FOR STAINLESS STEET TUBES AND PIPES Allowable Outside Diameter Allowable wall Specification Exact Length Testing Varialion in mm Thickness Variation Tolerences in mm I Specification Diameter Over Under OverYo Under% Over Under Testing ASTM .270 25.4 .05 .20 +12.5 -12.5 3.2 0 Reverse Flattering test Seamless & Welded 38.1 .05 .20 +12.5 -12_5 3.2 0 100% Hydrostatic test Sanitary Tubes 50.8 .05 - .28 +12.5 -12.5 3.2 0 External polish on all 63.5 .05 .28 +12.5 -12.5 3.2 0 tubes 76.2 .08 .30 +12.5 -12.5 3.2 0 Refer to ASTM A - 270 101 .6 .08 .38 +12.5 -12.5 3.2 0 ASTM A - 249 Under 25.4 + 10 0.1 016 0.1016 -10 3.175 0 Tension Test, Welded Boiler, 25.4-38.1incl 0.1524 0.1524 +10 -10 3.175 0 Fletting test Superheater, Heat 38.1 -50.8 excl. 0.2032 0.2032 +10 -10 3.175 0 Flare Test 50.8-63.5 excl. + 10 0.25.40 0.25.40 -10 3.76 0 * Reverse Bend Test Exchanger and 63.5-76.2 excl. 0.3048 0.3048 +10 -10 4.76 0 Hardness Test Condenser Tubes 76.2-10'1.6 incl. 0.3810 0.3810 +10 -10 4.76 0 1 00% Hydrostatic Test *Reverse Flattering Test Refer to ASTM A - 450 Whenever applicable ASTM A - 312 13.7 - 48.3 incl. 0.40 0.79 Minimum Wall tubes 6.4 Seamless & U Tension Test Welded Pipes 48.3-114.3 incl. 114.3-220 incl. 0.79 1.59 0.79 0.79 12.5% under nominal 6.4 o Fletting Test wall Specified 100% Hydrostatic Test 1u##tty nanoom tengths or?ered) ASTM A - 269 Seamless & Upto 12.7 0.13 0.13 +15 15 3.2 o Tension Test Welded Service 12.7 -38.1 exct. 38.1 -88.9 exct. 0.13 0.13 +'10 10 3.2 o Flange Test 88.9 -139.7 excl. 0.25 0.25 +10 IU 4.8 0 (Welded only) 139.7 - 203.2 exct. 0.38 0.38 +10 10 4.8 o Hardness Test 0.76 0.76 +10 10 4.8 o Reverse Flatterning test (Welded only) 100% Hydrostatic Test Refer to ASTMA-269 ASTM A- 213 Upto 25.4 Seamless Boiler, 25.4 -38.1 incl. 0.1 01 6 0.1524 0.1016 +20 -0 3.175 0 Tension Test Superheater and 38.1 -50.8 exct. 0.1524 +20 -U 3.175 0 Flattening Test Heat Exchanger 50.8 - 63.5 encl. 0.2032 0.2540 0.2032 +22 -n 3.176 0 Hardness test Tubes 63.5 - 73.2 excl. 0.2540 +22 -0 3.760 0 '100% Hydrostatic Test 76.2 - 101 .6 inct. 0.3048 0.3048 +22 -0 4.760 0 0.3810 0.3810 +22 -0 4.760 0 Refer to ASTMA - 450 ASTM A - 268 Upto 12.7 0.13 0.13 +15 -15 3.2 0 Tension Test Seamless & 12.7 -38.1 excl. 0.13 0.13 +10 -10 3.2 0 Flange Test CERW onlv Welded 38.1 - 88.9 excl. 0.25 0.25 +10 -10 4.8 0 Hardness Test Femtic Stainless Steel tubes 88.9 -168.9 excl. 0.38 0.38 +10 -10 4.8 n Reverse Flattering Test 100% Hydrostate Test ASTM A - 358 For all size +0.5% 0.5Y0 No -0.3 Customer's For Welded big Limit mm Specification Diameter Pipes E-mail : bagoda@vsnl.net www bagodasteelproject.com