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STANDARD ASTM

PIPES FITTINGS FLANGES
Standard ASTM/ASME Grade Comment Standard Material Standard Material
A53 / A106 Grade A Carbon steel pipes A234 WPA A105 A105N
A106 / A210 Grade B WPB
Grade C WPC
A335 / A209 P1 / T1 Alloy steel pipes/tubes WP1 A182 F1
A335 / A213 P5 / T5 WP5 F5
P9 / T9 WP9 F9
P11 / T11 WP11 F11
P12 / T12 WP12 F12
P22 / T22 WP22 F22
P91 / T91 WP91 F91
P92 / T92 WP92 F92
A333 Grade 3 Low temperature pipes A420 WPL3 A350 LF3
Grade 6 WPL6