We supply and export cold drawn spring steel wire for mechanical springs manufacturers. Cold drawn spring wire is wire drawn to size by cold deformation of a starting material that has been subjected to a thermal treatment. Our cold drawn Spring Steel Wire for Mechanical Springs is produced meeting European Standard EN 10270 and simliar standard.
According to the stress level, we supply spring wire manufactured in three tensile strength grades: Low, medium and high tensile strength.
We deliver cold drawn spring steel wire in following forms:
Unit packages of coils;
Big coils on carriers;
Spools;
Straight lengths;
In bundles.
Spring steel wire is supplied in following coatings / finishes:
Phosphate coated (ph) either dry drawn or wet drawn;
Copper coated (cu);
Zinc (Z) coated, or galvanized;
Zinc/aluminium (ZA) coated / Galfan coated.
All steel wires can be with an oiled surface for all surface finishes.
Cold Drawn Spring Steel Sizes:
From wire diameter 0.80 mm up to above 10mm.
Cold drawn spring steel wires of zinc galvanized, ungalvanized, hard tempered, phosphated finish:
Spring Steel Wire, Hard Tempered
Cold Drawn Unalloyed Spring Steel Wire, Bright Zinc Galvanised Finish Rust Proof
Carbon Black Spring Steel Wire, Non Galv, Oiled Tempered Wire
Phosphated Spring Wire 2.50 mm, phosphate coated, standard EN 10270-1, Packed in Big Coils for Easy Using
We mainly supply following cold drawn spring steel wires:
» Oil Tempered wire as per JIS G 3560 or equivalent
Diameter: 1.60mm
» AISI 631 Hard Tempered Spring Wire
Wire diameter: 0.40 mm
Section: Round wire
Surface: bright / brite
Tensile: hard spring temper
Forms of supply: in 10kg coils net weight
» 4mm Galv. Spring Steel Wire
Chemical Composition
| C % | Si % | S % | P % | Mn % | Cr % | Mo % |
| 0.55 - 0.65 | 1.70 - 2.10 | 0.035 Max | 0.035 Max | 0.70 - 1.00 | 0.20 – 0.40 | 0.20 - 0.30 |
» 1.4mm and 2.2mm Spring Wires for Mattresses Spring and Bonnel Spring
For mattresses and bonnell spring blocks production
Wire diameter: 1,4 and 2.2 mm
Tensile strength: 1960 MPa.
Steel wire standard ASTM A 407-90 , DIN 17223/1-84.
» Galvanized Steel Fine Spring Wire
Fine spring wires are supplied with the following size as per the Below Standard EN10270 -1 – SM Grade.
Chemical Composition
| C % | Si % | S % | P % | Mn % | Cr % | Mo % |
| 0.55 - 0.65 | 1.70 - 2.10 | 0.035 Max | 0.035 Max | 0.70 - 1.00 | 0.20 – 0.40 | 0.20 - 0.30 |
Tensile Strength
| Wire Size mm | Tensile Strength MPa |
| 0.20 | 2500 - 2790 |
| 0.25 | 2420 - 2710 |
| 0.30 | 2370 - 2650 |
| 0.35 | 2320 - 2590 |
| 0.40 | 2270 - 2550 |
| 0.45 | 2240 - 2500 |
| 0.50 | 2200 - 2470 |
Application: 0.20, 0.25, 0.30mm Galvanized Spring steel wire is mainly used for oil seal spring manufacturing in automotive industry.
» Spring steel wire for spring manufaturing
Wire Diameter 1.60mm Grd-III
Chemical Composition
Carbon 0.75- 1.00
Mn- 0.80 max
Si- 0.15-0.35
S- 0.03max
P- 0.12 max
UTS- 219-222 kg/mm
» High Carbon Steel Spring Wire, Phosphated Finish
DIN Standard: EN10270-1-SM / 72B
Wire ranges: Diameter 0.35mm to 7.00 mm
Material: High carbon steel
Material treatment: Phosphated steel wire
Packing: In coils
Details:
| DIN | Class | Dia (mm) | Packing | Surface |
| DIN17223/B | EN10270-1-SM / 72B | 0,35 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 0,40 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 0,45 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 0,50 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 0,60 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 0,70 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 0,80 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 0,90 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 1,00 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 1,10 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 1,20 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 1,30 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 1,40 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 1,50 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 1,60 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 1,80 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 2,00 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 2,20 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 2,30 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 2,50 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 2,80 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 3,00 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 3,50 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 4,00 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 5,00 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 6,00 | Coil | Phosphated |
| DIN17223/B | EN10270-1-SM / 72B | 7,00 | Coil | Phosphated |
Spring Steel Wire Basic Technical Info:
Material: Top quality steel wire rods produced by Anshan Iron and Steel Group 45#, 60#, 65#, 70#, 42A, 62A, 72A, 72B, 82B, T9A, 65Mn
Size range: 0.15mm-4.0mm
Tolerance: ±0.01mm
Standards: GB/T 4357, DIN17223, EN10270, JIS G 3521 and so on
Application: mechanical springs
Packing: according to customers' specific requirements
Tensile Strength: Low, medium and high.
Different grades of spring steel wire is used in various fields:
Spring steel wire with low tensile strength is mainly used for tension, compression or torsion springs, which are predominantly subjected to low static stress.
Spring steel wire with medium tensile strength is used for tension, compression or torsion springs, which are subjected to medium high static stresses or rarely to dynamic stresses, also for wire forms requiring severe bending.
Spring wire with high tensile strength is used for tension springs, compression springs, torsion springs, wire forms that are subjected to high static stresses or medium level dynamic stresses.