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Bellows
The raw materials of the bellows are divided into three materials: Nylon(PA), Polyethylene(PE), and Polypropylene(PP).
PA material: wear resistance, high mechanical strength, good toughness, and self-lubricating advantages;
PE material: good chemical resistance, strong low temperature resistance (soft and hard PE bellows can be customized according to customers);
PP material: good bending resistance and heat resistance.
It is widely used in wiring harness processing, wiring harness protection and other industries.
Performance | Standard | PA Result | PE Result | PP Result | |
Physical Characteristics | Temperature rating (℃) | —— | -40 ~ +125 | -55 ~ +105 | -40 ~ +125 |
Tensile Strength (Mpa) | ASTM D2671 | 28 | 10 | 21 | |
Min. ultimate elongation (%) | ASTM D2671 | 260 | 150 | 200 | |
Chemical Characteristics | Thermal Aging (125°C*3000h) | QC/T29106 D | No cracking; No Powder | No cracking; No Powder | No cracking; No Powder |
Heat Aging (150°C*240h) | QC/T29106 D | No cracking; No Powder | No cracking; No Powder | No cracking; No Powder | |
Cold Shock (-40°C) | QC/T29106 D | No Cracking; No Breaking | No Cracking; No Breaking | No Cracking; No Breaking | |
Flexibility | QC/T29106 D | Pass | Pass | Pass | |
Flammability (V0) | UL94 | Pass | Pass | Pass | |
Burning Rate | GB8410-2006 | ≤100mm/min | A-0mm/min | A-0mm/min |
O.D. (mm) | I.D. (mm) | Bending Radius (mm) | Packaging Standard (mts/rolls) |
7 | 4.5 | 10 | 200 |
10 | 6.5 | 16 | 100 |
11.6 | 8 | ||
13 | 10 | 20 | |
15.8 | 12 | 30 | |
18.5 | 14.3 | 40 | |
20 | 16 | 45 | |
21.2 | 17 | ||
25 | 20 | ||
28.5 | 23 | 50 | |
32 | 25 | 50 | |
34.5 | 29 | 60 | |
42.5 | 36 | 70 | 25 |
54.5 | 48 | 90 |
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