Surface	Coating	Thickness μm	Color	SST Hours		PCT Hours
Nickel	Ni	10～20	Bright Silver	>24～72		>24～72
	Ni+Cu+Ni
Black Nickel	Ni+Cu+Ni	10～20	Bright Black	>48～96		>48
Cr3+Zinc	Zn C-Zn	5～8	Brighe Blue Shining Color	>16～48 >36～72		---
Sn	Ni+Cu+Ni+Sn	10～25	Silver	>36～72		>48
Au	Ni+Cu+Ni+Au	10～15	Gold	>12		>48
Ag	Ni+Cu+Ni+Ag	10～ 15	Silver	>12		>48
Epoxy	Epoxy	10～20	Black/Grey	>48		---
	Ni+Cu+Epoxy	15～30		>72～108		---
	Zn+Epoxy	15～25		>72～108		---
Passivation	---	1～3	Dark Grey	Temporary Protection		---
Phosphate	---	1～3	Dark Grey	Temporary Protection)		---

Item	Parameters	Reference Value	Unit
Auxiliary Magnetic Properties	Reversible Temperature Coefficient Of Br	-0.08--0.12	%/℃
	Reversible Temperature Coefficient Of Hcj	-0.42～-0.70	%/℃
	Specific Heat	0.502	KJ·(Kg ·℃)-1
	Curie Temperature	310~380	℃
Mechanical Physical Properties	Density	7.5~7.80	g/cm3
	Vickers Hardness	650	Hv
	Electrical Resistance	1.4x10-6	μQ ·m
	Compressive Strength	1050	MPa
	Tensile Strength	80	Mpa
	Bending Strength	290	Mpa
	Thermal Conductivity	6～8.95	W/m ·K
	Young's Modulus	160	GPa
	Thermal Expansion(C⊥)	-1.5	10-6/℃-1
	Thermal Expansion(CII)	6.5	10-6/℃-1

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