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Comparison table of various stainless steel pipe sizes and weights
Industrial fluid transportation pipes
Product standards: GB/T 12771, GB/T 21832, HG 20537, ASTM A312, ASTM A358, ASTM A790, ASTM A928, JIS G3459, JIS G3468, EN 10217
Picture 1 Note:
The conversion formula for weight per meter is: Kg/m = (outer diameter - wall thickness) × wall thickness × conversion coefficient for various materials.
Material conversion coefficient: 0.02491 for 304 material; 0.02507 for 316L material; 0.02513 for S2205 material
Stainless steel welded pipes for boilers, heat exchangers and condensers
Product standards: GB/T24593, GB151, ASTM A249, ASTM A269, JISG3463
Picture 2
Allowable deviations for outer diameter, wall thickness, curvature and length (unit: mm)
Picture 3
For thin-walled steel pipes where the ratio of wall thickness to outer diameter is no more than 3%, the measured average outer diameter of the steel pipe should comply with the outer diameter allowable deviations listed in this table.
Food hygiene grade pipe mechanical structure and decorative pipe (round pipe)
Product standards: DIN 11850, ASTM A270, EN 10312, JIS G3447, ISO 2037, GB/T 12770, JG-T 3030, YB/T5363, ASTM A554, JIS G3446
Picture 4
Mechanical structure and decorative pipes (square tubes / rectangular tubes)
Product standards: GB/T 12770, GB/T 6728, YB/T 5363, JG-T 3030, ASTM A554, JIS G3446
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