Ni-hard Castings Description:

1. Hardness: more than HRC56.

2. International Standard: GB/T 8263-1999,

                                            AS 2027/Ni-Cr1-550,

                                            AS 2027/Ni-Cr2-500,

                                            AS 2027/Ni-Cr4-500,

                                            AS 2027/Ni-Cr4-600,

                                            AS 2027/Ni-Cr4-630,

                                            ASTM A 532 1-A, B, C, D,

                                            ASTM A 532 2-A, B, C, D, E,

                                            ASTM A 532 3-A. 

 3. Microstructure: Eutectic Carbide + Martensite + Residual Austenite