High Carbon Black Round DIN Standard Spring Steel Wire
Our development depends on the advanced equipment, excellent talents and continuously strengthened technology forces for 50crva oval spring steel wire EN10270-2, T1298-86GB Oil quenched and tempered spring steel wire, diamond oil-spring steel wire ASTM-A230-99. We warmly welcome your participation according to mutual rewards during the around long term. With the superior and exceptional service, we've been well developed along with our customers. We firmly believe the competition among modern enterprises is the competition of talents, so we absorb outstanding management talents and introduces good production equipment. Our team knows well the market demands in different countries, and is capable of supplying suitable quality products and solutions at the best prices to different markets.
Special-shaped steel wire (for car body accessories)
Use
This product is suitable for the manufacture of glass lifts, Dang Quan, wipers and door locks and car mounts, and other special-shaped steel wire.
Classification and code
Cold drawing (rolling): L annealing (+ pull): T quenched and tempered: Zh
Straight edge flat steel wire: Yb arc edge flat steel wire: Hb vault flat steel wire: Gb square wire: Fs ( below) 
Size, shape and tolerances
| Specification range（b、h、a) | Allowable deviation | |
H or a | b | |
0.8~1.0 | 0 -0.07 | 0 -0.12 |
＞1.0~3.0 | 0 -0.10 | 0 -0.14 |
＞3.0~6.0 | 0 -0.12 | 0 -0.16 |
＞6.0~8..0 | -- | 0 -0.18 |
＞8.0~12.0 | -- | 0 -0.22 |
Mechanical properties
Use | Brand | tensile strength，N/mm2 |
Glass lifter | 65Mn、50CrVA | ≤785 |
Door lock, slide, retaining ring | 15、25、45 | ≤835 |
Wipers | 1Cr18Ni9 | 1080~1275 |
70 | 1080~1255 |
Note: According to user requirements, but also other tensile strength of delivery
Surface Quality
The surface of the steel wire shall be smooth and free from defects such as cracks, rust, folds, knots, etc. which may adversely affect the use, but shall permit the presence of an anisotropic scale and individual scratches and pits not exceeding one half of the dimensional tolerance.
delivery status
Curtain lifter with curved flat steel wire annealed or annealed to pull the state delivery
Door slides, locks, retaining ring wire to cold drawing (rolling) state delivery
Wipers with stainless steel flat wire to cold-drawn state delivery, carbon steel flat steel wire to quenched and tempered state
With wide experience and expertise, Friend Metal is engaged in the developing, manufacturing and marketing of shaped non-standard custom shaped steel wire65mn 60si2mna 55crsi sae9254v 50crva ASTM-A230-99, ASTM-A401, EN10270-2, JIS G3561. As a professional manufacturer, we now brings you high quality various steel wires made in China which comes in high strength, well toughness and excellent wearing resistance. We also welcome your customized orders.
We have won the reliance and support of the majority of users by relying on a complete after-sales network and superior and inexpensive High Carbon Black Round DIN Standard Spring Steel Wire. Our company has a complete after-sales service network, can provide you with full support and solve your problems timely. A long-term development strategy and team building plan have been established since our establishment.
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