Bimetallic Alloy Screw and Barrel

Location:	China
Business Type:	Manufacturer, Exporter
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FEATURE
SPECIFICATION

Bimetallic alloy technical paramemter
Item	Alloy layer chemical composition%										Hardness	Resistance to wear	Corrosion resistance
	Alloy layer chemical component
	Si	Cr	Ni	Mo	C	Co	W	Fe	B	other
800NiFe-B Grade	2	10	30	2	2.5	5	5	余	2.5	10	HRC55-60	★★★★★	★★★
800NiFe-A Grade	3.5	15	35	3	2	7.5	9	余	3.5	10	HRC58-68	★★★★★★	★★★★
800Ni-B Grade	4	19	Yu	6	1	10	6	4	3	10	HRC48-58	★★★★	★★★★★
800Ni- A Grade	4.5	22	Yu	2.5		11	5	2	2.5	10	HRC48-58	★★★★★	★★★★★★
Barrel outer substrate material of barrel:40Cr,45#
Alloy layer thickness the thickness of alloy layer:1.5-4mm
Gloss: excellent glossiness:excellent
The factory will constantly change the formula due to technical improvements, the above parameters are for reference only.

Bimetallic Alloy Barrel---Casting 2-4mm alloy layer at the inner wall of barrel

Bimetallic Alloy Screw---Spraying alloy powder at the top of screw thread

The alloy power is from Stellit company that is wear-resisting, anti-corrosion and high temperature resistance. The using life of bimetallic alloy screw and barrel is double longer than nitriding barrel.it is suit to process engineer plastic, PSU polysulfone, fluorine plastic and PPO etc.

We will adjust alloy formula according to different plastic.