GBBTI5047212807304599900
A HOLLOW LOW ALLOY STEEL SEAMLESS BAR.
OF CIRCULAR CROSS SECTION OF AN EXTERNAL DIAMETER EXCEEDING 406.4MM (457.2MM).
NOT FURTHER WORKED THAN HOT FINISHED. FOR MECHANICAL TUBING.
CONTAINING BY WEIGHT;
0.40% OF CARBON (0.9 - 1.15%)
1.030% CHRONIUM (0.5% - 2%)
0.21% MOLYBDENUM (NOT MORE THAN 0.5%)
WITH A CARBON EQUIVALENT VALUE (CEV) NOT EXCEEDING 0,86 ( 0.808)
RANGING FROM 21 - 28 FT IN LENGTH.