SUMITUBE™ B8
CatalogNo.846
[125℃ rating, semi-rigid flame-retarded heatshrinkable tubing]UL/CSA recognized
■ UL/CSA recognized
■ Semi-rigid
■ Flame-retarded (PBDE/PBB-free)
✔RoHS directive 10 substances
Applications
■ Insulation, protection and reinforcement for termination and joints of electric wire which require high strength mechanical abuse
■ Corrosion protection for pipes
Basic Properties
| Category | Heat shrink tubing |
|---|---|
| Material | Irradiated cross-linked flexible flame-retarded polyolefin |
| Flammability | Flame Retarded |
| Shrink temperature | min. 130℃ |
| Shrink ratio | min. 50% |
| Longitudinal change | 0 ±5% |
| Continuous operating temperature | -55 to 125℃ |
| Specifications/Approvals |
UL224 File No. E48762 Catalog No. SUMITUBE™ B8 or 846 Rating temperature: 125℃ Rating voltage: 600V Flammability: VW-1 CSA C22.2 No. 198.1 File No. LR33298 Rating temperature: 125℃ Rating voltage: 600V Flammability: VW-1 Electrical Appliance and Material Safety Law (Japan) Flammability rating (-F-) test registration No.: F-STS3-009 to F-STS3-012 |
| Marking on Surface | SUMITOMO-K CSA SR HS X PO TUBING 125℃ SUMITUBE |
| Available colors | Black, Brown, Red, Orange, Yellow, Green, Blue, Purple, Gray, White |
| Flexibility | Semi-rigid |
| Environmental Compliance | RoHS,ELV |
| Industry | Automotive,Construction machinery,Industrial machinery,Electronics |

Oil/Chemical resistance (room temperature)
| Gasoline | Gas oil | Lubricant | Alcohol | Acid | Alkali |
|---|---|---|---|---|---|
| ○ | ○ | ○ | ◎ | ◎ | ◎ |
◎:Very good ○:Good △:Not applicable in some cases
| Properties | Items | Requirements | Typical Values * |
|---|---|---|---|
| Mechanical | Tensile strength (before aging) Tensile strength (after aging) Elongation (before aging) Elongation (after aging) Heat shock Cold bend |
min. 13.8MPa 158℃ x 7 days, min. 9.7MPa min. 200% 158℃ x 7 days, min. 100% 250℃ x 4 hours, no crack -30℃ x 1 hour, no crack |
19.0MPa 17.1MPa 340% 340% Pass Pass |
| Electrical | Dielectric withstand (before aging) Dielectric withstand (after aging) Dielectric breakdown (before aging) Dielectric breakdown (after aging) Volume resistivity |
AC2.5kV x 60 sec., no breakdown 158℃ x 7 days, AC2.5kV x 60 sec., no breakdown min. AC2.5kV 158℃ x 7 days, min. 50% of original and min. AC2.5kV min. 1.0 x 1014Ω・cm |
Pass Pass 15.0kV Pass 2.3 x 1016Ω・cm |
| Chemical | Corrosion against bare copper
Stability against copper Flammability |
158℃ x 7 days, no corrosion after leaving under 95% humidity, 23℃ x 24 hours 158℃ x 7 days, elongation min. 100% after leaving under 95% humidity, 23℃ x 24 hours Flame-retarded, pass VW-1 |
Pass
304% |
Sizes



