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Standard: Specification for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes.
Size:
O.D.:3.2-127mm 1/8"-5"
W.T.:0.4-12.7mm 0.015-0.5"
Steel Grade (Low alloy steel):
T2, T5, T5b, T5c, T9, T11, T12, T17, T21, T22, T23, T24, T36, T91, T92, T122, T911,etc.
Steel Grade (Austenitic and ferritic stainless steel):Please click HERE 
