Bahamas JL138 Series - Double alloy screw

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BahamasDouble alloy screw series

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Product Description

Technical index:
Tempered hardness: HV270-320
Substrate hardness: HV900-1000
Alloy hardness: HRC58°-63°
Alloy layer hardness: 1.0mm-3.0mm
Surface roughness: Ra0.4
Screw straightness: 0.015mm
Scope of application: general purpose plastic + glass fiber less than 30%

Jiayue	China	Japan	USA	Germany	Technology
JL	QD	JIS	AISI	DIN	Technology
JL138-1	38CrMoALA	SACM645	647OE	34CrAINi7	Nitrding
JL138-2	42CrMo	SCM440	514O	1.7035	Electroplate
JL138-3	42Cr5MoSiV1	SKD61	H13	1.2344	Vacuum + Nitriding

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