PPS Toray A504X90

PPS Toray A504X90 is a high‑performance 40% glass‑fiber‑reinforced polyphenylene sulfide engineering plastic. It is renowned for excellent high‑temperature resistance, flame retardancy and mechanical strength, together with chemical stability and dimensional stability.

Main Applications

Automotive Industry: high‑temperature‑resistant and high‑strength components such as engine‑peripheral parts, sensor housings, fasteners and exhaust‑system components.

Electrical‑Electronic Industry: high‑frequency electronic components, connectors, insulating parts, relays and others, leveraging favorable electrical performance, high‑temperature resistance and flame retardancy.

Mechanical & Chemical Industry: high‑strength, high‑temperature‑resistant and corrosion‑resistant mechanical parts and chemical‑equipment components including pump bodies, valves, bearings, gears and pistons.

Physical Properties

Property Category	Test Item	Test Condition	Test Standard	Test Data	Unit
Physical Properties	Density / Specific Gravity	—	ASTM D‑792 / ISO 1183	1.66‑1.67	g/cm³
	Water Absorption	24hr, 23℃ in water	ASTM D‑570 / ISO 62	0.02	%
	Mold Shrinkage‑Flow Direction	—	TORAY Method / ASTM D‑955	0.20	%
	Mold Shrinkage‑Transverse Direction	—	TORAY Method / ASTM D‑955	0.70‑0.80	%
Mechanical Properties	Tensile Strength	23℃	ASTM D‑638 / ISO 527‑1,2	200‑207	MPa
	Flexural Strength	23℃	ASTM D‑790 / ISO 178	275‑305	MPa
	Flexural Modulus	23℃	ASTM D‑790 / ISO 178	13.3‑15.5	GPa
	Charpy Notched Impact Strength	23℃	ASTM D‑256 / ISO 179	11‑13	kJ/m²
	Charpy Un‑notched Impact Strength	23℃	ASTM D‑256 / ISO 179	55	kJ/m²
	Rockwell Hardness	—	ASTM D‑785 / ISO 2039‑2	122	R
Thermal Properties	Heat‑Distortion Temperature (HDT)	1.8 MPa (1.82 MPa)	ASTM D‑648 / ISO 75‑1,2	260‑>260	°C
	Melting Point	—	DSC / ISO 11357‑3	278	°C
	Linear Thermal Expansion Coefficient‑Flow Direction	—	ASTM D‑696 / ISO 11359‑2	2.3E‑5	cm/cm/°C
	Linear Thermal Expansion Coefficient‑Transverse Direction	—	ASTM D‑696 / ISO 11359‑2	3.1E‑5‑3.2E‑5	cm/cm/°C
Electrical Properties	Volume Resistivity	—	ASTM D‑257 / IEC 60093	10¹⁴‑10¹⁶	Ω·m / Ω·cm
	Dielectric Strength	—	ASTM D‑149 / IEC 60243‑1	21‑24	MV/m / kV/mm
	Dielectric Constant	10⁶ Hz / 1 MHz	ASTM D‑150 / IEC 60250	3.8‑4.2	—
	Dissipation Factor	10⁶ Hz / 1 MHz	ASTM D‑150 / IEC 60250	0.002	—
Flame Retardancy	UL Flammability Rating	0.28 mm / 0.75 mm	UL 94	V‑0	—

Injection Molding Parameters

Processing Stage	Parameter Item	Reference Value	Unit
Drying	Drying Temperature	130‑150	°C
	Drying Time	3‑4	h
Injection Temperature	Rear Barrel Temperature	290‑300	°C
	Middle Barrel Temperature	300‑320	°C
	Front Barrel Temperature	310‑330	°C
	Nozzle Temperature	310‑330	°C
	Melt Temperature	310‑330	°C
Mold & Pressure	Mold Temperature	130‑150	°C
	Injection Pressure	80‑150	MPa
	Holding Pressure	30‑70	MPa
	Screw Speed	50‑120	rpm
	Back Pressure	1‑10	MPa

Note: All information above is for reference only!