SUMITUBE B2 is a very flexible, flame-retarded, radiation-crosslinked heat shrinkable polyolefin tubing which meets all of the material and functional requirements of Military Specification AMS-DTL- 23053/5, Class 1 and Class 3. Operating temperature range is -55o C to +135o C and up to 200o C for short time durations. B2 is recommended for use in general purpose applications such as wire marking, color coding, and electrical insulation of light wire harness assemblies. RoHS CompliantPROPERTY (UNITS) REQUIREMENT Physical: Tensile strength (psi) 1500 min. Elongation (%) 200 min. Specific gravity 1.35 max. Low temperature flex (-55 deg C) no cracking Heat shock (250 deg C, 4 hrs.) no cracking Elongation (%) 100 min. Secant modulus (psi) 2.5 X 104 max. Longitudinal change (%) +/- 5 %Electrical: Dielectric strength (volts/mil) 500 min. Volume resistivity (ohm-cm) 1.0 X 1014 min. Chemical: Corrosion (175 deg C, 16 hrs.) no corrosion Tensile strength (psi) 1000 min. Flammability UL 224 VW-1 pass Shrink temperature, nominal 90 deg C