JTYPEI®NA,PEI natural rod is a profile made from pure Polyetherimide (PEI) material. Engineered polyetherimide is an amorphous polymer with a high glass transition temperature of up to 217°C, offering mechanical properties comparable to PEEK, as well as excellent heat resistance, insulation, and flame-retardant properties.

This product is suitable for high-stress, fatigue-stress, or impact-stress environments under high temperatures, such as automotive components or interior/exterior parts, semiconductor processing, precision bearings, mechanical load-bearing parts, wind power equipment or new energy battery components, and electrical systems.

● High tensile strength, over 110 MPa

● High flexural strength, over 150 MPa

● Excellent thermo-mechanical load-bearing capacity, with a heat deflection temperature greater than 200°C

● Good creep and fatigue resistance

● Excellent flame-retardant properties with low smoke emission during combustion

● Outstanding dielectric and insulation properties

● Excellent dimensional stability with a low thermal expansion coefficient

● High heat resistance, thermoplastic polyetherimide, suitable for long-term use at 170°C

● Microwave transparency

Application Fields

JTYPEI®NA pure PEI profiles are applied in:

— Mechanical engineering industry

— Semiconductor and electronics industry

— Automotive industry

— Household appliance industry

For turning or milling, remove the surface heat treatment aging layer, generally by 0.2 mm.

For milling, use tungsten steel tools designed for aluminum.

For drilling, start with a small hole and then expand to the desired size, avoiding direct drilling with large-diameter bits.

During processing, ensure adequate cooling with cutting fluids to prevent material burning and tool adhesion.

It is recommended to use water-soluble cutting fluids.

Product Storage Instructions

Store away from light, moisture, and oily substances.

If not in use, wrap the product in protective film.

Performance	Test Method	Unit	PEI natural
Color	Eye	/	Translucent amber
Density	ISO 1183-1	g/cm³	1.28
Tensile Strength	ISO 527-2	MPa	≥110
Tensile Modulus	ISO 527-2	GPa	≥3.0
Elongation At Break	ISO 527-2	%	≥10
Charpy Impact Strength (Notched)	ISO 179	kJ/m²	≥4.0
Flexural Strength	ISO 178	MPa	≥150
Flexural Modulus	ISO178	GPa	≥3.0
Rockwell Hardhess	ISO 2039-2	M	≥100
Glass Transition Temperature	ISO 11357-3	℃	217
Coefficient of Linear Thermal Expansion	ISO 11359-2	10-6/K	≤65
Long-term Service Temperature	UL 746B	℃	170
Heat Deflection Temperature(1.80MPa)	ISO 75-2	℃	≥200
Water Absorption (23℃、Water、24h)	ISO 62	%	≤0.4
Flammability resistance	UL94	/	V-0
Volume Resistivity	IEC62631-3-1	Q-cm	≥10^15
Dielectric Strength	IEC 60243-1	kV/mm	≥26
Dielectric Constant(1MHz)	IEC 62631-2-1	/	3.4
Dielectric Loss(1MHz)	IEC62631-2-1	/	5.44*10^-3

PEI Natural Rod Specification
Diameter x Length ( mm)	Unit Weight (Kg)	Diameter x Length ( mm)	Unit Weight (Kg)	Diameter x Length ( mm)	Unit Weight (Kg)
4 x 1000	0.025	4 x 2000	0.051	4 x 3000	0.076
5 x 1000	0.037	5 x 2000	0.073	5 x 3000	0. 11
6 x 1000	0.05	6 x 2000	0.10	6 x 3000	0. 15
8 x 1000	0.08	8 x 2000	0. 16	8 x 3000	0.25
10 x 1000	0. 12	10 x 2000	0.24	10 x 3000	0.37
12 x 1000	0. 17	12 x 2000	0.34	12 x 3000	0.51
15 x 1000	0.25	15 x 2000	0.50	15 x 3000	0.75
20 x 1000	0.44	20 x 2000	0.88	20 x 3000	1.32
25 x 1000	0.68	25 x 2000	1.37	25 x 3000	2.05
30 x 1000	0.97	30 x 2000	1.94	30 x 3000	2.91
35 x 1000	1.31	35 x 2000	2.62	35 x 3000	3.93
40 x 1000	1.70	40 x 2000	3.40	40 x 3000	5. 1
45 x 1000	2. 15	45 x 2000	4.29	45 x 3000	6.44
50 x 1000	2.73	50 x 2000	5.46	50 x 3000	8.20
55 x 1000	3.28	55 x 2000	6.57	55 x 3000	9.85
60 x 1000	3.78	60 x 2000	7.57	60 x 3000	11.35
65 x 1000	4.47	65 x 2000	8.94	65 x 3000	13.40
70 x 1000	5.28	70 x 2000	10.56	70 x 3000	15.84
75 x 1000	6.08	75 x 2000	12. 17	75 x 3000	18.25
80 x 1000	6.96	80 x 2000	13.92	80 x 3000	20.88
90 x 1000	8.74	90 x 2000	17.48	90 x 3000	26.22
100 x 1000	10.89	100 x 2000	21.77	100 x 3000	32.66
110 x 1000	12.90	110 x 2000	25.80	110 x 3000	38.70
120 x 1000	15.29	120 x 2000	30.57	120 x 3000	45.86
130 x 1000	18.01	130 x 2000	36.01	130 x 3000	54.02
140 x 1000	20.81	140 x 2000	41.61	140 x 3000	62.42
150 x 1000	23.81	150 x 2000	47.61	150 x 3000	71.42
160 x 1000	27. 17	160 x 2000	54.35	160 x 3000	81.52
170 x 1000	30.59	170 x 2000	61. 18	170 x 3000	91.77
180 x 1000	34.20	180 x 2000	68.41	180 x 3000	102.62
190 x 1000	38.03	190 x 2000	76.05	190 x 3000	114.08
200 x 1000	42.05	200 x 2000	84.09	200 x 3000	126. 14

PRODUCT CATEGORY

Polyetherimide ROD for Mechanical engineering industry

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