Sherardizing
Product(s)1 of 1
Min Order:1 bag
Industry:Minerals & Metallurgy
Process: Powder sherardizing, solid-state zinc thermal diffusion
Coating Structure: Graded Zn-Fe intermetallic FeZn13 / FeZn7 layer
Coating Thickness: 20-120 um, set by temperature and dwell time
Surface Hardness: HV 200-400
Service Life: 15-25 years at 20 um
Salt Spray Test: 1,080 h no red rust, GB/T 10123
Bonding: Metallurgical, 300-350 MPa bond / 600-700 MPa adhesion, class 1
Hydrogen Embrittlement: None, suitable for grade 10.9 and 12.9 fasteners
Base Materials: Carbon steel, alloy steel, cast iron, powder metallurgy parts
Thread Handling: Uniform coverage on threads and blind holes, no re-tapping
Standards: ASTM A1059, EN ISO 17668, EN 13811, BS 4921, ISO 14713-3, GB/T 35505-2017
Applications: Fasteners, railway fittings, power towers, solar mounts, bridges, marine hardware