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桥梁用结构钢 2019
ASTMA709&A709M-2004桥梁用结构钢
Designation: A 709/A 709M –04 Standard Speci?cation for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges 1 This standard is issuedunder the ?xed designation A 709/A 709M; the number immediately following the designation indicates the year of original adoption or, in the caseof revision, the year of last