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Spring Application

Our precoated wire applied for automobile, appliance, and precision machinery application.

Delta Wire

Our pre-coated wires are manufactured by using highly advanced coating and drawing technology to apply for spring and forming process uses. In our Delta Wire brand, we provide superior wires on processing productivity, corrosion protection and bright surface, which will contribute to customer's cost reduction in post-plating process.
In order to meet varied requirement for automobile, appliance, precision machinery and agricultural application, our brand selection includes Delta-AZ, zinc-aluminum coated steel wire, which enable anti-corrosion capability doubled or more comparing with only zinc coated steel wire.

Characteristcs of Delta Wire

  • Product already been galvanized.
  • Pollution-free products.
  • Superior anti-corrosion capability
  • Easy processing
  • Stable mechanical characteristics

Product application for Delta Wire

  • Variety of Spring (Spring for automotive use, appliances use, and precision machinery use)
  • Forming Wire
  • Outer Wire etc. for control cable

Delta Wire Specification

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Diameter
mm
Hard Drawn Steel Wire Piano Wire Standard packing
(Coil Dimension・Coil Weight)
Diameter Tolerence
(mm)
Tensile Strength(N/mm²) Diameter Tolerence
(mm)
Tensile Strength(N/mm²) DWG-1・DWG-P DWG-A
SW-B SW-C SWP-A Coil Dimension
(mm)
Coil Weight
(kg)
Coil Dimension
(mm)
Coil Weight
(kg)
0.40 ±0.015 1960~2260 2260~2550 ±0.008 2350~2600 250 20 - -
0.50 1910~2210 2210~2500 2300~2550 300 25
0.55 ±0.020 1860~2160 2160~2450 ±0.010 2260~2500
0.60 1810~2110 2110~2400 2210~2450
0.70 1770~2060 2060~2350 2160~2400 400 50
0.80 1770~2010 2010~2300 2110~2350
0.90 2010~2260 2110~2300
1.00 1720~1960 1960~2210 2060~2260 400 50
1.20 ±0.030 1670~1910 1910~2160 ±0.015 2010~2210 450 100 550 125
1.40 1620~1860 1860~2110 1960~2160
1.60 1570~1810 1810~2060 1910~2110
1.80 1520~1770 1770~2010 1860~2060 550 125
2.00 1470~1720 1720~1960 1810~2010
2.30 ±0.040 1420~1670 1670~1910 ±0.020 1770~1960 650 125 650 125
2.60
2.90 1370~1620 1620~1860 1720~1910
3.20 1370~1570 1570~1810 1670~1860 750 140 750 140
3.50 ±0.040 1570~1770 ±0.030 1670~1810
4.00

*Re:TS on Galvanized wire (JIS G 3548), SWGD-2 is equivalent to SW-B and SWGS-3 is equivalent to SW-C
*For the diameters between written sizes, each specification number for larger diameter is used.

Type of Delta Wire

As our Delta wire has a variety of specification in order to apply for various uses, please ask us recommended products. In addition, we can provide special sizes, packing and SWP-B grade on consultation basis.

Product Name Availabillity for Standard Product Main Application Processability Coating Amount
(g/m²)
Size
(mm)
Product ID
SW-B SW-C SWP-A
DWG-1 1.0~4.0 - Precision Spring・Outer Spring 40~130
DWG-A 0.7~4.0 Bending process 30~300
DWG-P 0.4~0.9 - Precision Spring 20~50

Note: Coating amount changes by grade, listed amount based on reference. Please contact for further detail.

Delta AZ

Our pre-coated wires are manufactured by using highly advanced coating and drawing technology to apply for spring and forming process uses. In our Delta Wire brand, we provide superior wires on processing productivity, corrosion protection and bright surface, which will contribute to customer's cost reduction in post-plating process.
In order to meet varied requirement for automobile, appliance, precision machinery, and agricultural application, our brand selection include Delta-AZ, zinc-aluminum coated steel wire, which enable anti-corrosion capability doubled or more comparing with zinc only coated steel wire.

Coated layer build anti-corrosion Protection

Our Delta-AZ has a zinc-aluminum coated layer for extraordinary high corrosion protection, which, in early stage of corrosion, is helped by solid and stable coating film created by aluminum action and also sacrificial anti-corrosion film helped by zinc action, that is, such a film protect steel foundation as negative electrode. This double protection, the most advanced technology, being done by our expertise in galvanizing and drawing technology.

Delta-AZ Wire Diameter and Specification

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Diameter
mm
Hard Drawn Steel Wire Piano Wire Standard Packing
Diameter Tolerence
(mm)
Tensile Strength(N/mm²) Diameter Tolerence
(mm)
Tensile Strength(N/mm²) Outside Diameter
(mm)
Coil Weight
(kg)
SW-B SW-C SWP-A
1.00 ±0.020 1720~1960 1960~2210 ±0.010 2060~2260 400 50
1.20 ±0.030 1670~1910 1910~2160 ±0.015 2010~2210 550 125
1.40 1620~1860 1860~2110 1960~2160
1.60 1570~1810 1810~2060 1910~2110
1.80 1520~1770 1770~2010 1860~2060
2.00 1470~1720 1720~1960 1810~2010
2.30 ±0.040 1420~1670 1670~1910 ±0.020 1770~1960 650
2.60
2.90 1370~1620 1620~1860 1720~1910

*Re:TS on Galvanized wire (JIS G 3548), SWGD-2 is equivalent to SW-B and SWGS-3 is equivalent to SW-C
*For the diameters between written sizes, each specification number for larger diameter is used.

Type of Delta-AZ

Our Delta-AZ product has variety of specification offered in order to apply for various uses, please ask us for recommended product. In addition, we will provide special sizes, packing and SWP-B grade on consultation basis.

Product Name Diameter
mm
Amount of Coating
g/m²
Product application
AZ-α 1.00~2.90 40~120 Precision Spring required high fatigue durability
AZ-β 80~160 Precision Spring and Forming Wire required high corrosion protection

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