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ASTM A210: SEAMLESS MEDIUM CARBON STEEL BOILER AND SUPERHEATER TUBES

Chemical Composition
Steel Grade C % Mn % Si % P % S % Cu %  Ni % Mo %  Cr %  V %
A1 0.27 max 0.93 max 0.10 min 0.035 max 0.035 max
C  0.35 max 0.29-1.06 0.10 min 0.035 max 0.035 max
Mechanical Properties
Steel Grade Tensile Strength MPA Yield Strength MPA Elongation % HRB
A1 415 min 255 min 30 min 79 max
C 485 min 275 min 30 min 89 max
Dimensional Tolerance
Type of the Steel pipe Out Diameter Wall Thickness
Cold  Drawn  Pipe Out Diameter  Toleranceange Tolerance Range
25.4  0.1 0-20%
25.4-38.1  0.15
38.1-50.8  0.2 0-22%
50.8-63.5  0.25
63.5-76.2  0.3
76.2-101.6  0.38
101.6-180 -0.64 / +0.38

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