Polyetherimide (PEI) Rod is an amorphous engineering thermoplastic. It is characterized by high heat resistance — CUT = 338°F (170°C), high strength and modulus, as well as excellent electrical insulating properties, which are stable over wide ranges of temperature and frequency and considered one of the most high performance plastics on the market. Imide groups provide strength at high temperatures, while flexible ether group linkages ensure relatively easy processing. PEI is an amorphous, amber-to-transparent thermoplastic with characteristics similar to the related plastic PEEK. Relative to PEEK, PEI is cheaper, but is lower in impact strength and usable temperature.
 

PEI RODS (Size)
 
PEI ROD
PEI ROD
DIA (mm) Tolerance Standard (mm) PEI ROD (kg)    
3 0.2
0.4
0.009    
5 0.025    
6 0.2
0.4
0.036    
8 0.064    
10 0.2
0.6
0.100    
12 0.144    
15 0.224    
20 0.2
1.0
0.399    
25 0.623    
30 0.898    
35 0.2
1.5
1.222    
40 1.596    
45 2.020    
50 2.494    
55 0.3
2.0
3.017    
60 3.591    
65 4.214    
70 4.888    
75 5.611    
80 6.384    
85 7.207    
90 8.079    
95 0.4
3.5
9.002    
100 9.975    
110 12.069    
120 14.363    
130 16.857    
140 0.5
4.5
19.550    
150 22.443    
         
         
Remark:
1. Tolerance is according to DIN Length: 0~3 %, width: 0~ 3%.
2. it is theoretical value for above spec, with the  Length 1000mm
3. Taking objective as standard, listed data are for reference only.
4. The products above have been strictly treated with tempering; the strain value has met the minimum.

PEI Feature
Moisture absorption is also low, giving the material excellent dimensional stability in a variety of environments. Although unfilled PEI is not a particularly good bearing material, internally lubricated PEI, particularly carbon fiber filled grades, do show good friction and wear characteristics.