PRODUCTS -

PRODUCTS

VESPEL

- Products -

VESPEL

Vespel has the best heat resistance and abrasion resistance among high-performance resins. Since it was merchandised in 1962, it has been widely used as components in aircraft, aerospace and munitions industries as well as modern-day applications including automotive, OA equipment, electronics, scientific instruments, industrial machinery, production facilities, etc.

Features

Ultra heat resistance: continuous operating temperature 288℃, short time 480℃, extremely low temperatures (1k or less).
Abrasion resistance: PV limit without lubrication is more than 10 times that of most engineering plastics.
Creep at 260℃ and 186kg/㎠ is no more than 0.6% per 1,000 hours.
Electrical insulation: dielectric strength 22KV/mm
Plasma and Radiation Strengths
Chemical Resistance: resistant to grease, oil solvent
Resistance to gas release in 10-10 vacuum: high vacuum torr
Excellent machinability

- Physical property -

Property	Temp.℃	ASTM method	Units	SP1		SP21		SP22		SP211		SP3
Property	Temp.℃	ASTM method	Units	M	DF	M	DF	M	DF	M	DF	M
Tensile strength	23	D-1708 Or E8t	MPa	86.2	72.4	65.5	62.0	51.7	48.3	44.8	51.7	58.5
Tensile strength	260	D-1708 Or E8t	MPa	41.4	36.5	37.9	30.3	23.4	26.2	24.1	24.1
break elongation	23	D-1702 Or E8t	%	7.5	7.5	4.5	5.5	3.0	2.5	3.5	5.5	40
break elongation	260	D-1702 Or E8t	%	6.0	7.0	3.0	5.2	2.0	2.0	3.0	5.3
Flexural strength	23	E-790	MPa	10.3	82.7	110.3	82.7	89.6	62.1	68.9	68.9	75.8
Flexural strength	260	E-790	MPa	62.1	44.8	62.0	48.3	44.8	37.9	34.5	34.5	39.9
flexural modulus of elasticity	23	E-790	MPa	3102	2482	3792	3171	4826	4826	3102	2758	3275
flexural modulus of elasticity	260	E-790	MPa	1724	1448	2551	1792	2758	2758	1379	1379	1862
Compressive strength At 1% strain At 10% strain At 0.1% strain	23	E-695	MPa	24.8 133.1 51.0	24.1* 112.4* 33.1*	29.0 133.1 45.5	22.8* 104.8* 33.8*	31.7 112.4 41.4	24.1* 93.8* 25.5*	20.7 102.0 37.2	14.5* 75.8* 27.6*	34.5 127.6
compressive modulus of elasticity	23	D-695	MPa	2413	2413*	2895	2275*	3275	2654*	2068	1379*	2413
axial direction fatigue limit At 10³cycles At 10⁷ cycles	23 260 23 260		MPa	55.8 26.2 42.1 16.5		46.2 22.8 32.4 16.5
flexural fatigue limit At 10³cycles At 10⁷ cycles	23 23		MPa	65.5 44.8		65.5 44.8
shear strength	23	D-732	MPa	89.6		77.2
Izod notched impact strength	23	D-256	J/m	42.7		42.7						21.3
Izo, unnotched impact strength	23	D-256	J/m	747		320						112
	23			0.41		0.41
abrasion rate[Wear rate]			m/s x 10¹⁰	17-85	17-85	6.30	6.30	4.20	4.20	4.90	4.90	17-23
friction coefficient PV=0,875 MPa•m/s PV=3,5 MPa•m/s				0.29	0.29	0.24 0.12	0.24 0.12	0.30 0.09	0.30 0.09	0.12 0.08	0.12	0.25 0.17
In vacuum											0.08	0.03
Static in air				0.35		0.30		0.27		0.20
Coefficient of Linear Thermal Expansion	23to260 -62to+23	D-696	W/m/℃	54 45	50	49 34	41	38	27	54	41	52
thermal conductivity	40		W/m.℃	0.35	0.29*	0.87	0.46*	1.73	0.89*	0.76	0.42*	0.47
specific heat			J/kg/℃	1130
load strain	50	D-621	%	0.14	0.20	0.10	0.17	0.08	0.14	0.13	0.29	0.12
Heat Deflection Temperature		D-648	℃	~360		~360