5083H321 or H116
Application: Navigation Standard: Q/EL202-1999
1, Chemical composition: (%)
Si: 0.4; Fe: 0.4; Cu: 0.1; Mn: 0.4-1.0 Mg: 4.0-4.9;
Cr: 0.05-0.25; Zn: 0.25; Ti: 0.15; Other: each 0.05, total 0.15
2, Physical capabilities:
Tensile strength (σb) : 305~385MPa 220-290Mpa(H112 or H111)
Yield strength (σ0.2 ): 215~295MPa 205-275Mpa (H112 or H111)
Elongation (δ): ≥12%
3, Quality control:
Cracking and lamination is not allowed on the surface.
Ultrasonic flawing detecting is available with extra charge.