Shengda Square Bar Grade: W1, W2, Wal1, Wal2, Wal3 Standard: ASTM B365-98 Diameter: 0.5-500mm Purity: 99.95% Shengda Square BarGrade: W1, W2, Wal1, Wal2, Wal3 Standard: ASTM B365-98Different size are available Purity: 99.95%Density: 19.3g/cm3Melting Point: 3620Boiling Point: 5660Application: Electron device, medical device, industrial, aviation etc. Mild Square bar