钢带
CCST consists of a steel tape coated on both sides with adherent ethylene copolymer. Steel tape is made of chrome-plated cold-rolled steel tape , its chemical composition complying with the China Telecommunication Industry Standard YD / T723.3. The copolymer exhibits excellent adhesion to the steel substrate and has the chemical resistence and general characteristics of lower density polyethylene , it bonds to low , linear low , medium and high density polyethylene.
Item | Unit | Requirement | Tolerance | |
Length | m | 1000-5000 | ±50 | |
Width | mm | 12-1100 | ±0.5 | |
Thickness | Steel Tape | mm | 0.155/0.200 | ±0.010 |
Copolymer(EAA) | mm | 0.058 | ±0.013 | |
Total | mm | 0.260/0.310 | ±0.015 | |
Chrome-Coated contents | g/㎡ | 0.08-0.34 | ||
Tensile Strength | Mpa | 310-390 | ||
Break Elongation | % | ≥15 | ||
Peel Strength | N/cm | ≥6.13 | ||
Heat Seal Strength | N/cm | ≥17.5 | ||
Water Resistance 68±1℃,168h | N/cm | ≥6.13 | ||
Jelly Resistance 68±1℃,168h | --- | No Separation | ||
Dielectric Strength DC 2KV,1 min | --- | Without breakdown | ||
Corrosion Resistance 0.1mol/L,Hcl,480h | Grade | Grade 8 | ||
Appearance:plain,smooth,uniform,free from foreign matters,wrinkles,piebald and other defects. |
1、It is mainly applied in special optical cable and other cable products.
2、Type:304、316L;
Item | Unit | Requirement | Tolerance | |
Length | m | 1000-4500 | ±50 | |
Width | mm | 12-420 | ±0.3 | |
Thickness | Stainless Steel Tape | mm | 0.100-0.200 | ±8% |
Copolymer(EAA) | mm | 0.05 | ±8% | |
Total | mm | 0.200-0.300 | ±8% | |
Yield Strength | N/m㎡ | ≥170 | ||
Hardness Test | --- | ≦200 | ||
Tensile Strength | Mpa | ≥460 | ||
Break Elongation | % | ≥40 | ||
Peel Strength | N/cm | ≥5.0 | ||
Heat Seal Strength | N/cm | ≥17.5 | ||
Appearance:plain,smooth,uniform,free from foreign matters,wrinkles,piebald and other defects. |
3. Chrome plated steel tape
Glossy surface without tin re-melt treatment after chrome plating on a mat with a rough and matt surface
Differentiation (one cold rolled plate) | parameter | ||||||
T-1 | T-1.5 | T-2 | T-2.5 | T-3 | T-4 | T-5 | |
Hardness (HR30Tm) | 49±4 | 51±4 | 53±4 | 55±4 | 57±4 | 61±4 | 65±4 |
Chrome plating technical requirements
Metal chrome plating | Chrome oxide coating | ||
Minimum average | Maximum average | Minimum average | Maximum average |
50 | 150 | 3 | 35 |
surface condition
Finished product | Code number | distinguish | Roughness | feature |
One-time cold-rolled steel plate and strip | B | Bright surface | ≤0.4 | A glossy surface obtained by replating a tin after chrome plating on a smooth surface with an extremely fine gargoyle pattern |
R1 | Rough surface | 0.4-0.9 | A glossy surface obtained by reflow treatment after chrome plating on a base plate characterized by a certain directional magic stone pattern | |
R2 | 0.9-2.0 | A glossy surface obtained by reflow treatment after chrome plating on a base plate characterized by a certain directional magic stone pattern | ||
S | Silver surface | ≥2.0 | Glossy surface without tin re-melt treatment after chrome plating on a mat with a rough and matt surface |
Item | Unit | Requirement | Tolerance | |
Length | m | 1000-5000 | ±50 | |
Width | mm | 12-1100 | ±0.5 | |
Thickness | Steel base tape | mm | 0.105-0.200 | ±0.01 |
Chrome-Coated contents | g/㎡ | 0.08-0.34 | ||
Tensile Strength | Mpa | 310-390 | ||
Break Elongation | % | ≥15 | ||
Dielectric Strength DC 2KV,1 min | --- | Without breakdown | ||
Corrosion resistance | Grade | Grade 8 |
Item | Standard |
Thickness | 0.20mm-1.0mm |
With | 20mm-1250mm,Cut narrow or large rolls |
Zinc coating | 60-275g/m2 |
Tensile Strength | 320~410Mpa |
Break Elongation | 20% |