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Category: Physical Property Table (4)

Property	Test Mathod ASTM	學Scientific Name	ACETAL	NYLON 6	PP	PE
Chemical Name
Properties		Chinese Name	塑膠鋼	尼龍	聚丙烯	聚乙烯
		Chinese Name	POM	6	PP	PE
Physical Properties	D792	Density g / cm 3	1.41	1.14	0.91	0.93-0.96


	D570	Water absorption %	0.22	1.80	<0.01	<0.01


Mechanical Properties	D638	Tensile strength	620	720-840	330	250

		kg / cm2
	D790		910	950-1200	420-560	70.0
		Flexural strength
		kg / cm2
	D785	Rockwell hardness	D80-85	D75-80	D70-75	D65-70


	D256		19.1	18.0-25.0	3.8	20.0
		Izod impact strength
		kg cm / cm with notch
	D1044	Wear rate	14.0	3.0-4.0	40.0
		Taper wears mg / 1000
		Times
		Friction coefficients	0.18	0.37	0.30	0.17-0.08

Plastic Injection Materials—Categorized Physical Property Table (5)

Property	Test Method ASTM	Scientific Name	PVC	ABS	PC	PMMA
Chemical Name
Properties		Chinese Name	氯乙烯			壓克力
			PVC	ABS	PC	PMMA
物性 Physical Properties	D792	propertion g / cm 3	1.40-1.45	1.03	1.20	1.20
D570	Water absorption %	0.04-0.75	0.30	0.24	0.10-0.40
Mechanical Properties	D638		420-530	440	645	350-640
		Tensile strength
		kg / cm2
	D790		700-1130	700	960	900-1200
		Flexural strength
		kg / cm2
	D785	Rockwell hardness	D80-85	D75-80	D75-80	D85-90
	D256		1.0-3.0	21	12-14	1.0
		Izod impact strength
		kg cm / cm with notch
	D1044	Wear rate		19.0	13.0
		Taper wears mg / 1000
		times
		Friction coefficients	0.45	0.38	0.36	0.38

Plastic Injection Materials—Categorized Physical Property Table (6)

property╲item	POM plastic steel	PA nylon	PE polyethylene	PP polypropylene
proportion	1.42	1.2	0.94	0.91
hardness	D85	D80	D68	D75
Impact strength	2.0	2.5	16	4
acid /alkali degree	strong alkali	strong alkali	weak acid alkali	strong alkali weak acid
friction coefficient	0.18	0.15	0.18	0.37
main features	high hardness, easy forming, wear resistant	torque resistant, tough, wear resistant, oily for lubrication	not adhehive impact resistant wear resistant, non toxic	strong hardness, easy to process, easy adhevive smallest proportion
industry usage	gear guide wheel watch part	silent gear wear plate guides slideway	food m/c parts wear parts	chemical tank plating equipment water treatment equipment parts

Plastic Injection Materials—Categorized Physical Property Table (7)

property	test method	unit		HDPE	PP	POM	NYLON 6		ABS	PVC
Physical Property
proportion	ISO 1183	g/cm3		0.95	0.92	1.39	1.13		1.04	1.36
water absorption			-	-	-	0.20	3.00		0.40	0.20
Mechanical property
yield strength	ISO 527	MPa		22	33	63	70		41	55
elastic strength	ISO 178	MPa		30	-	-	-		70	90
Xue’s degree	DIN 53505			62	70	85	77		70	82
gap impact strength	ISO 179	kJ/m2		20.00	13.00	6.00	> 3		37.00	3.00
elongation at break	ISO 527			≧ 600	≧ 50	31.00	≧ 50		45.00	33.00
coefficient of friction	DIN 53375			0.30	0.30	0.35	0.38		0.50	0.60
Heat property
linear thermal expansion coefficient	DIN 53752	K-1 x 10-4		1.55	1.50	1.10	0.85		1.00	0.80
thermal conductivity	DIN 52612	w / (m x k)		0.43	0.22	0.31	0.28		0.25	0.14
thermal deformation temperature	ISO 75	℃		70	95	155	160		97	72
maximum temperature tolerance	-	℃		90	100	110	100		70	60

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