Questions about Products in General

Do you have product samples available?
When we have samples in stock, we provide them with extra cost.
Contuct us from “Product Inquiry From.”
Can you change the packing styles from coil to bobbin?
Yes, we can change to bobbin.
Contuct us from “Product Inquiry From.”
Please let me know the bobbin sizes.
See “List of Bobbin Sizes for Products.”

Questions about Galvanized Steel Wire

When springs were heat treated, it caused discoloration of galvanizing.
See “Causes of Discoloration of Springs Using Galvanized Steel Wire” for details.
Do you use hexavalent chromium in galvanizing?
We do not perform chrome treatment using hexavalent chromium or trivalent chromium.
See “Environmental Properties of Galvanized Steel Wire” for details.
Are there environmental documents, such as RoHS, REACH, SGS Report, and MSDS available?
You can download PDF from “Environmental Information.”
What is the best heat treatment temperature?
The recommended heat treatment temperature is less than 240℃.
See “Optimum Heat Treatment Temperature for Galvanized Steel Wire” for details.
How can I store products after they are unpacked?
Be sure to tightly seal and store the unused wire.
See “Storage Precautions for Galvanized Steel Wire” for details.

Questions about Copper plated Steel Wire

What percentage is the conductivity of copper plated steel wire?
Conductivity of our copper plated steel for spring is 13%–15% IACS.
See “Conductivity of Copper plated Steel Wire” for details.
Does heat treatment change the temper color in copper plated material?
See “Change in Temper Color Due to Heat Treatment of Copper Plated Steel Wire” for details.
Are there environmental documents, such as RoHS, REACH, SGS Report, and MSDS available?
You can download PDF from “Environmental Information.”
What is the level of solderability of copper plated steel wire?
Our copper plated steel wire has good solderability.
See “Solderability of Copper Plated Steel Wire” for details.
What is the effect of oxide film of copper plated steel wire?
Oxide film affects contact resistance although it causes no problem in conductivity.
See “Effect of Oxide Film in Copper Plated Steel Wire” for details.
How can I store products after they are unpacked?
Tightly seal and store the unused wire with a desiccant.
See “Storage Precautions for Copper Plated Steel Wire” for details.

Inquiry for Our Products