Oil hardened, tempered spring steel wire used widely

Spring steel wire is a type of high carbon steel wire with high tensile strength and tough fibrous structure through cold-drawing. Spring steel wires can be sorted into oil hardened spring wire, tempered spring steel wire, stainless steel spring wire and high carbon spring steel wire. Spring steel wire is mainly suitable as mattress spring, compression spring, extension spring.

Spring steel wire packed in spool

Bright coated spring wire packed in spool

Spring steel wire packed in coil

Galvanized coated spring wire packed in coil

Single stainless steel spring wire

Stainless steel spring wire

Two black spring steel wires

Black coil spring steel wires

Features:

Corrosion resistance. Through the addition of molybdenum, spring wire can resist corrosion.

High temperature endurance. Spring steel wire can endure higher temperature up to 250℃ - 450℃.

Smooth surface. With phosphate coated on surface, spring wire can become smooth and flat.

Specification:

Diameter: 0.15mm - 16mm.

Tensile strength: 860N/mm2 - 2270N/mm2.

Standard: 302, 304, ,316, 631.

Surface finish: bright coated.

Grade Tensile Strength (N/mm2) Surface Finish Tolerance mm

Nominal Diameter mm 1.4310 (302)/304 1.4401 (316) 1.4568 (631)

0.15 - 0.20 2200 - 2530 1725 - 1980 1975 - 2270 Bright ± 0.005

0.20 < d ≤ 0.30 2150 - 2470 1700 - 1955 1950 - 2240 Bright / Coated ± 0.005

0.30 < d ≤ 0.40 2100 - 2415 1675 - 1925 1925 - 2210 Bright / Coated ± 0.008

0.40 < d ≤ 0.50 2050 - 2355 1650 - 1895 1900 - 2185 Bright / Coated ± 0.008

0.50 < d ≤ 0.65 2000 - 2300 1625 - 1865 1850 - 2125 Bright / Coated ± 0.008

0.65 < d ≤ 0.80 1950 - 2240 1600 - 1840 1825 - 2095 Bright / Coated ± 0.010

0.80 < d ≤ 1.00 1900 - 2185 1575 - 1810 1800 - 2070 Bright / Coated ± 0.010

1.00 < d ≤ 1.25 1850 - 2125 1550 - 1780 1750 - 2010 Bright / Coated ± 0.015

1.25 < d ≤ 1.50 1800 - 2070 1500 - 1725 1700 - 1955 Bright / Coated ± 0.015

1.50 < d ≤ 1.75 1750 - 2010 1450 - 1665 1650 - 1895 Bright / Coated ± 0.015

1.75 < d ≤ 2.00 1700 - 1955 1400 - 1610 1600 - 1840 Bright / Coated ± 0.015

2.00 < d ≤ 2.50 1650 - 1895 1350 - 1550 1550 - 1780 Bright / Coated ± 0.020

2.50 < d ≤ 3.00 1600 - 1840 1300 - 1495 1500 - 1725 Bright / Coated ± 0.020

3.00 < d ≤ 3.50 1550 - 1780 1250 - 1435 1450 - 1665 Bright / Coated ± 0.020

3.50 < d ≤ 4.25 1500 - 1725 1225 - 1410 1400 - 1610 Bright / Coated ± 0.020

4.25 < d ≤ 5.00 1450 - 1665 1200 - 1380 1350 - 1550 Bright / Coated ± 0.025

5.00 < d ≤ 6.00 1400 - 1610 1150 - 1320 1300 - 1495 Bright / Coated ± 0.025

6.00 < d ≤ 7.00 1350 - 1550 1125 - 1290 1250 - 1435 Bright / Coated ± 0.025

7.00 < d ≤ 8.50 1300 - 1495 1075 - 1235 1250 - 1435 Bright / Coated ± 0.030

8.50 < d ≤ 10.00 1250 - 1435 1050 - 1205 1250 - 1435 Bright / Coated ± 0.030

10.00 < d ≤ 11.00 965 - 1170 895 - 1105 --- Bright / Coated ± 0.030

11.00 < d ≤ 13.00 930 - 1140 895 - 1105 --- Bright / Coated ± 0.030

13.00 < d ≤ 16.00 895 - 1105 860 - 1070 --- Bright / Coated ± 0.030

Packing: In coil, spool, reel, bag, drum, carton or according to customer's requirements.

Application:

Mattress and sofa spring.

Suspension spring for vehicles.

Valve spring wire.

Mechanical spring and other form of springs.

Helical spring wire combined to support top and bottom of mattress

The flexible spring wires allows the mattress to bend easily

Car suspension spring combined with wheel and frames

Car suspension spring reduce the vibration between wheels and frames to assure the car travel smoothly