... , prime, newly produced, secondary , stock etc.Material/Steel gradeGR.B X42 X46 X52 X56 X60 X65 X70CertificateAPI5LEndPlain end ... 18meters; Max Diameter 610mm;TestChemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Metallographic Test, ... industries;- applies to pipe piles in which the steel cylinder acts as a permanent load-carrying member, ...