Technology R&D
Tough Guard™ Hard (TGH) Ternary(Zn-Al-Mg)
alloy plated steel wire with high corrosion resistance
Development Footsteps
-
In 2006, 3E Plated Steel Sheet & Plate Released
Applied to Solar Panel, Fence, Wall etc. -
In 2012, Specified JIS G 3323 (2012) ：
Hot Dip Zinc-Aluminum-Magnesium Alloy Coated
Steel Sheet and Strip -
In 2014, J-witex Developed 3E HC Steel Wire
Hurdled difficulties in process, developed
by Collaboration with NSSMC -
In 2016, Technical Papers Released by IEEJ
IEEJ: The Institute of Electrical Engineers Japan -
In 2017, Press Release with NSSMC
Trademark “Tough Guard Hard” in Japan
What is Tough Guard™ Hard ?
Corrosion Protection by Indoor Test
According to NSST (Neutral Salt Spray Test) 【 Wire Dia. 2.6mm】
Tough GuardTM Hard（TGH） ＞ Normal Zinc : 8 times longer life
Inside of Chamber for NSST
Condition of SST
According to JIS Z 2371
(Corresponding to ISO 9227)
- Salt Concentration / 50±5g/ℓ
- pH / 6.5 ～ 7.2
- Temp. / 35 ±2℃
Ref.)
J-witex Corp. “ Development of high corrosion resistance zinc alloy coated steel strands”
IEEJ National Convention No.7-108_2016 (in Japanese)
Surface Comparison at NSST 3,000 hours
Ref.)
J-witex Corp. “ Development of high corrosion resistance zinc alloy coated steel strands”
IEEJ National Convention No.7-108_2016 (in Japanese)
Corrosion Protection by Exposure Test
Coating Weight Loss
Ref.)
J-witex Corp. “ Development of high corrosion resistance zinc alloy coated steel strands”
IEEJ National Convention No.7-108_2016 (in Japanese)
Surface Comparison by Exposure Test
【GSW】(GSW shows red rust even after 217days)
【TGH-GSW, Tough Guard™ Hard】
Location of Exposure Test
North Daitou Island
- 360km East from Main Island Okinawa
- Surrounding shore line : 15km
Ref.)
J-witex Corp. “ Development of high corrosion resistance zinc alloy coated steel strands”
IEEJ National Convention No.7-108_2016 (in Japanese)
Exposure Test
Samples set on Testing Rack
Ref.)
J-witex Corp. “ Development of high corrosion resistance zinc alloy coated steel strands”
IEEJ National Convention No.7-108_2016 (in Japanese)
Tough Guard™ Hard Mechanical Properties
Example/ Overhead Ground Wire
Authorized by Tohoku Power Company in 2016
Example/Fence Protecting Sea Side Cliff
At Wakayama, Japan Monitoring Performance Since Dec. 2015
Example/ Messenger Wire
Supporting Power Cable on Railway (Installed in 2016)
