The factory was set up in 1958. Registered ZHEJIANG WANSHENG YUNHE STEEL CABLE CO., LTD in 2006. Nowadays it has became an enterprise which specially produce brand "Yunhe" metal product series in metallurgical industry. Also it is national key supporting hightech enterprise. We now have a registered capital of 200 million RMB and covering an area of 30 thousand square meters. Our company has attained ISO9001 quality management system certification and ISO 14001 quality system certification.
We are well recognized and praised by numerous customers both home and abroad because of our first-class quality, in-time delivery and high-efficiency service
The Raw Material
(45# 60# 65# 62A 72A 65Mn 70# 82A 82B T9A 1008 1006 18A 22A)
| Steel Grade GB Standard | Carbon % | Silicon % | Manganese % | Phosphorus % | Sulphur % | Chromium % | Nickel % | Cuprum % |
| 60# | 0.60-0.61 | 0.18-0.22 | 0.52-0.59 | 0.012 | 0.007 | 0.06-0.07 | 0.05 | 0.18 |
| 65# | 0.65 | 0.21 | 0.56 | 0.013 | 0.008 | 0.05 | 0.04 | 0.14 |
| 65Mn | 0.60-0.70 | 0.10-0.25 | 0.70-1.00 | 0.030 | 0.030 | 0.20 | 0.20 | 0.25 |
| 70# | 0.69-0.71 | 0.19-0.21 | 0.53-0.58 | 0.010-0.012 | 0.003-0.006 | 0.01-0.05 | 0.02-0.04 | 0.04 |
| 72A 72B | 0.72 | 0.19 | 0.71 | 0.013 | 0.006 | 0.02 | 0.02 | 0.03 |
| 80# | 0.80-0.81 | 0.22-0.24 | 0.59-0.76 | 0.008 | 0.004 | 0.04 | ||
| 82A 82B | 0.82 | 0.24-0.25 | 0.76-0.77 | 0.011-0.014 | 0.004-0.007 | 0.17-0.17 | |
| Zinc-coated steel wire for stranded conductors | ||||||
| (Strength General) | diameter mm | Tensile Strebgth No Less Than | Tensile Strength No Less Than | LD=250mm Elongation Noless Than% | Number Of Twist/360 No less Than | Diameter Of Core ROD FOR Wrap Test(times) |
| (A)General strength | >1.24-2.25 | 1340 | 1170 | 3 | 18 | 1D |
| >2.25-2.75 | 1310 | 1140 | 3 | 16 | 1D | |
| >2.75-3.0 | 1310 | 1140 | 3.5 | 16 | 1D | |
| >3.0-3.5 | 1290 | 1100 | 3.5 | 14 | 1D | |
| >3.5-4.25 | 1290 | 1100 | 4 | 12 | 1D | |
| >4.25-4.75 | 1290 | 1100 | 4 | 12 | 1D | |
| >4.75-5.5 | 1290 | 1100 | 4 | 12 | 1D | |
| (A)Higher strength | >1.24-2.25 | 1450 | 1310 | 2.5 | 16 | 3D |
| >2.25-2.75 | 1410 | 1280 | 2.5 | 16 | 3D | |
| >2.75-3.0 | 1410 | 1280 | 3 | 16 | 4D | |
| >3.0-3.5 | 1410 | 1240 | 3 | 14 | 4D | |
| >3.5-4.25 | 1380 | 1170 | 3 | 12 | 4D | |
| >4.25-4.75 | 1380 | 1170 | 3 | 12 | 4D | |
| Extra Higher Strength | >1.24-2.25 | 1620 | 1450 | 2 | 14 | 3D |
| >2.25-2.75 | 1590 | 1410 | 2 | 14 | 3D | |
| >2.75-3.0 | 1590 | 1410 | 2.5 | 12 | 4D | |
| >3.0-3.5 | 1550 | 1380 | 2.5 | 12 | 4D | |
| >3.5-4.25 | 1520 | 1340 | 2.5 | 10 | 4D | |
| >4.25-4.75 | 1520 | 1340 | 2.5 | 10 | 4D | |
| Spring steel wire | Diameter | Tensile Strength | Packing |
| DIN | 0.4-2.3mm | Grade A or B | Spool,Coil,Z2 |
| JIS 3521 | 0.4-2.3mm | SW-A,SW-B,SW-C | Spool,Coil,Z2 |
| EN-10270-1 | 0.4-2.3mm | SL,SM,SH | Spool,Coil,Z2 |
| EN10264-2 | 0.4-2.3mm | 1370-1960 | Spool,Coil,Z2 |
| ISO 2232 | 0.4-2.3mm | 1370-1960 | Spool,Coil,Z2 |
| DIN 2078 | 0.4-2.3mm | 1370-1960 | Spool,Coil,Z2 |
| Optical cable steel wire | Diameter | Tensile Strength | Packing |
| Galvanized wire | 0.4-2.3mm | 1320-1960 | Spool,Coil,Z2 |