SUMITUBE™ B2

CatalogNo.826

[Flexible flame-retarded heat-shrinkable tubing]
SAE-AMS/UL/CSA recognized

■ SAE-AMS/UL/CSA recognized
■ Flame-retarded (PBDE/PBB-free)
■ Flexible
■ Bright colors
✔RoHS directive 10 substances

Applications

■ Insulation, protection and reinforcement for termination and joints of electric wire
■ Color identification and bundling for electric wires
■ Insulation and protection of resistors and capacitors

Basic Properties

Category	Heat shrink tubing
Material	Irradiated cross-linked flexible flame-retarded polyolefin
Flammability	Flame Retarded
Shrink temperature	min. 90℃
Shrink ratio	min. 50%
Longitudinal change	0 ±5%
Continuous operating temperature	-55 to 135℃
Specifications/Approvals	SAE-AS23053/5 Class 1,3 UL224 　　File No. E48762 Catalog No. SUMITUBE™ B2 or 826 　　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
Marking on Surface	―
Available colors	Black, Brown, Red, Orange, Yellow, Green, Blue, Purple, Gray, White Note: Yellow/Green striped color is available only for limited sizes Yellow/Green has no SAE recognized
Flexibility	Flexible
Environmental Compliance	RoHS,ELV
Industry	Automotive,Military / Aerospace,Construction machinery,Industrial machinery,Electronics

Gasoline	Gas oil	Lubricant	Alcohol	Acid	Alkali
△	△	△	◎	○	○

Gasoline

Gas oil

Lubricant

Alcohol

Acid

Alkali

△

◎

○

Features

Properties	Items	Requirements	Typical values*
Mechanical	Tensile strength (before aging) Elongation (before aging) Elongation (after aging) Low temperature flexibility Heat shock Specific gravity	min. 10.4MPa min. 200% 175℃ x 7 days, min. 100% -55℃ x 4 hours, no crack 250℃ x 4 hours, no crack max. 1.35	13.4MPa 410% 410% Pass Pass 1.32
Electrical	Dielectric strength Volume resistivity	min. 19.7kV/mm min. 1.0 x 10¹⁴Ω・cm	37.1kV/mm 3.1 x 10¹⁵Ω・cm
Chemical	Water absorption Corrosion against bare copper Color stability Fluid resistance 　　Tensile strength 　　Dielectric strength Flammability	23℃ x 24 hours, max. 0.50% 175℃ x 16 hours, no corrosion 175℃ x 24 hours, no change After immersion in the fluids specified in SAE-AS23053 at 24℃ for 24 hours, min. 6.9MPa 　　min. 15.8kV/mm Flame-retarded, pass VW-1	0.28% Pass Pass 13.1MPa 30.5kV/mm Pass

Properties

Items

Requirements

Typical values*

Mechanical

Tensile strength      (before aging)
Elongation                (before aging)
Elongation                (after aging)
Low temperature flexibility
Heat shock
Specific gravity

min. 10.4MPa
min. 200%
175℃ x 7 days, min. 100%
-55℃ x 4 hours, no crack
250℃ x 4 hours, no crack
max. 1.35

13.4MPa
410%
410%
Pass
Pass
1.32

Electrical

Dielectric strength
Volume resistivity

min. 19.7kV/mm
min. 1.0 x 10¹⁴Ω・cm

37.1kV/mm
3.1 x 10¹⁵Ω・cm

Chemical

Water absorption
Corrosion against bare copper
Color stability
Fluid resistance

　　Tensile strength
　　Dielectric strength
Flammability

23℃ x 24 hours, max. 0.50%
175℃ x 16 hours, no corrosion
175℃ x 24 hours, no change

After immersion in the fluids specified in SAE-AS23053 at 24℃ for 24 hours,

min. 6.9MPa
　　min. 15.8kV/mm
Flame-retarded, pass VW-1

0.28%
Pass
Pass

13.1MPa
30.5kV/mm
Pass

* For reference use only

Sizes

Trade size（inch）	As supplied（mm）		After recovered（mm）		Unit length（min.）（m）
Trade size（inch）	Inside diameter	Wall thickness（nom.）	Inside diameter（max.）	Wall thickness	Cut	Spool
3/64	1.60±0.30	0.20	0.60	0.41±0.07	1.22	305
1/16	2.00±0.30	0.20	0.80	0.43±0.07	1.22	305
3/32	2.70±0.30	0.25	1.20	0.51±0.07	1.22	152.5
1/8	3.50±0.30	0.25	1.60	0.51±0.07	1.22	152.5
3/16	5.20±0.30	0.30	2.40	0.51±0.07	1.22	61
1/4	6.8±0.4	0.30	3.20	0.64±0.07	1.22	61
3/8	10.0±0.4	0.30	4.75	0.64±0.07	1.22	61
1/2	13.2±0.5	0.30	6.4	0.64±0.07	1.22	61
3/4	20.0±0.6	0.40	9.5	0.76±0.07	1.22	61
1	26.6±0.8	0.45	12.7	0.89±0.12	1.22	61
1-1/2	39.3±1.0	0.45	19.1	1.02±0.15	1.22	61
2	52.7±1.5	0.50	25.4	1.14±0.17	1.22	61
3	77.7±1.5	0.55	38.1	1.27±0.20	1.22	61
4	106.0±3.0	0.60	50.8	1.40±0.22	1.22	30.5