PRODUCTS DESCRIPTION:
1. Applied grade: 60#-65#; 72A
2. Specification: 0.45mm-4.0mm.
3 Aplication: Applicable to industries such as automobile,
machinery, spring mattress and sports requisites,
pecially fit to windings of extension spring, compressed spring,
torsion spring, clamp,
be protected spring and serpentine spring.
4 Executive standard: Grade B, C, and D of GB/T4357-89.
Features:
Adopting high qwuality spring steel materials, the reel weight of
finished products is between 20kg to 150kg.
They have higher strength, good plasticity, toughness and
resistance to corrosion.
They can be produced to be of different types that are easy to
rinse, good in surface conductivity an d fit to electroplating
spring according to the customers' requirement.
TECHNOLOGY DETAIL
Tensile strength table of steel wire(Mpa)
| Group | Tensile strength |
| A1 | 1180-1380 |
| A2 | 1380-1580 |
| A3 | 1580-1780 |
| A4 | 1780-1980 |
| A5 | 1980-2180 |
| A6 | 2180-2380 |
Diameter tolerance of steel wire
| Diameter of steel wire(mm) | Grade of allowable tolerance |
| h10 | h11 | h12 |
| Allowable tolerance |
| >0.30-0.60 | ±0.01 | ±0.02 | ±0.03 |
| >0.60-1.00 | ±0.01 | ±0.02 | ±0.03 |
| >1.00-3.00 | ±0.02 | ±0.03 | ±0.05 |
| >3.00-5.00 | ±0.02 | ±0.03 | ±0.05 |
Marketing and Services
We located in Hubei which is the thoroughfare of nine provinces,
the company enjoys significant advantages in traffic location; our
company is only 2 km from Hanjiang, 3 km from Hanyi Railway. We have our own logistics company, and can
carry out the transportation through waterway, highway and railway.
We have set up powerful marketing network, with more than 60 offices and distribution divisions. Adhering to the marketing
principle of "Putting personal morality before work", we provide
pre-sales, sales and after-sales services for the clients. Based on
24 hour tracking all the way, we can serve the companies in a prompt
and considerate manner.
