MATTRESS SPRING WIRE
MATTRESS SPRING WIRE
Spring wire produced to DIN and BS standards, used primarily for bedding and seating applications is supplied to all the major mattress manufacturers in Pakistan. The product is also available in standard coil sizes within the required tensile ranges.
| ITEM | UNIT | SPECIFICATION | ||||
| Standard Size | mm | 1,32,1.40,1.50,1.60,1.70, 1.80,1.90 | 2,08, 2.12, 2.24, 2.36, 2.50, 2.65 2.80, 3.00, 3.15, 3.35, 3.55 | |||
| Diameter Tolerance | mm | 0.02 | 0.03 | |||
| Max. Out of Round | (+/-)mm | 0.02 | 0.03 | |||
| Reduction Area | % | 40 | 40 | |||
| Wrapping Test | — | Wire wrap around its own diameter without fracture | ||||
| Cast | mm | 600-800 | ||||
| Helix | mm | 50 Max, | ||||
| Tensile Strength Grades | N/mm | 1400/1600, 1500/1700, 1550/1750, 1600, 1800, 1700/1900, | ||||
| 1850/2050 | ||||||
| Chemical Composition | % | C 0.35 to 0.80 | Si 0.35 max. | Mn 0.40-1.0 | P 0.05 max. | S 1.05 max. |
