Interleaving paper for stainless steel sheet and coil, held to tight water-soluble chloride and sulfate limits so it protects the surface instead of staining it.
Stainless steel is interleaved to keep sheets apart through pressing, storage and transit. The paper sits against the metal for weeks at a time, so its chemistry matters more than its strength: residual chlorides and sulfates are what cause pitting and rust bloom on a polished surface.
This grade is specified against both. Water-soluble chloride is held to 180 mg/kg or less and water-soluble sulfate to 150 mg/kg or less, tested to ISO 9197 and ISO 9198. Dust count is controlled to GB/T 1541 — no particles above 0.4 mm², and no more than two in the 0.2–0.3 mm² band per square metre.
Typical applications — Interleaving and surface protection for stainless steel sheet and coil
| Property | Typical value | Method |
|---|---|---|
| Grammage | 23 – 45 g/m², ±2 | ISO 536 |
| Moisture | 5 %, ±1.2 | GB/T 462 |
| Tensile strength MD | 1.4 – 3.0 kN/m by grammage | GB/T 12914 |
| Tensile strength CD | 0.6 – 1.2 kN/m by grammage | GB/T 12914 |
| Bursting strength | 50 – 100 kPa by grammage | GB/T 454 |
| Tear strength MD / CD | 125 – 250 / 130 – 265 mN | GB/T 455 |
| Water-soluble chloride | ≤ 180 mg/kg | ISO 9197 |
| Water-soluble sulfate | ≤ 150 mg/kg | ISO 9198 |
| pH | 7, ±1.2 | ISO 6588-2 |
| Dust count | ≤ 2 per m² at 0.2–0.3 mm²; none above 0.4 mm² | GB/T 1541 |
Figures are typical values from mill technical data, not a guaranteed specification. We agree the binding specification with you before the mill runs.
Interleaving and surface protection for stainless steel sheet and coil.
The weights we run are 32 g/m². Reel width is slit to your line; anything outside this list depends on the mill and the run, and is confirmed with the quotation.
Reels or sheets — slit to your line width.
Full technical data sheet and batch test report on request.
Send the basis weight, the reel width and the monthly volume. You get a quotation from someone who knows the mill, usually within one working day.
Tell us basis weight, reel width and monthly volume — you will get a quotation from someone who knows the mill, usually within one working day.