Electro-galvanized Steel Sheet (Silver Top)

Features

1 Corrosion resistance

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Protects steel sheet from corrosion through the self-sacrificing corrosion resistance feature unique to galvanization.
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Corrosion resistance is further improved with a composite Zn-Co-Mo galvanization.

2 Diversity

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A diverse product lineup is available that features different functions for different uses.

3 Ultra-thin sheeting available

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Rolling technology makes production of sheets from 50 μm (steel foil) possible.

Substrate	Product name	Specifications	Coating structure	Features
SPCC, SPCD, high-strength substrate	Unpainted Silver Top	HE-71 (Conductivity emphasized) HE-72 (Corrosion-resistance emphasized) HE-73 (Wear-resistance emphasized)	HE-71, 72 Special organic layer Chemical conversion treatment layer Zn-Co-Mo Base steel HE-73 Li-Si Zn-Co-Mo Base steel	Ease of design • A beautiful, smooth golden finish makes it possible to eliminate later painting processes (reduced work processes). • Reduces waste paint and other waste materials produced from painting processes. Scratch-resistant and smooth • Low surface friction coefficient, so that die biting (scratches and peeling of galvanization) is rare. • Smooth flow is assured in paper feed and other drive mechanisms. Fingerprint resistant • Fingerprints of assembly line workers and users to not show up as much. Easy to weld • Can be used for grounding for various types of joining, such as spot welding.
SPCC, SPCD, high-strength substrate	Silver Top for painting	TE-90 (Gloss plating) TE-91 (Matte plating)	Phosphoric acid treatment Zn-Co-Mo Base steel	Paint adhesion • A precise phosphoric acid layer assures that various types of rubber lining and paints have superior adhesion.
SPCC, SPCD, high-strength substrate	Silver Top for soldering	ZE-36 (Corrosion-resistance emphasized) * Production of ZE-38 ended in March 2019.	Special organic layer Zn Steel sheet	Solderability • Soldering on galvanized steel sheet is possible. • Solves the red corrosion problem that develops for tin plate and tin plated steel sheet in the distribution process. Whisker-resistance • Does not include any tin, so that it is more difficult for whiskers to develop. Surface conductivity • The contact resistance of the surface is low, so that this material can be grounded even with surface contact. Shielding of electromagnetic waves • Cuts the entry and leakage of electromagnetic waves that can cause noise.
SPCC, SPCD, high-strength substrate	Black Silver Top for soldering	ZEB26	Black organic layer Zn Steel sheet	Heat dissipation • Has good surface heat emission to reduce the internal temperature of electrical and electronic devices. Solderability • Soldering on galvanized steel sheet is possible. • Solves the red corrosion problem that develops for tin plate and tin plated steel sheet in the distribution process. Surface conductivity • The contact resistance of the surface is low, so that this material can be grounded even with surface contact. Shielding of electromagnetic waves • Cuts the entry and leakage of electromagnetic waves that can cause noise.
SPCC, SPCD, high-strength substrate	Black Silver Top	BEP22 (Corrosion-resistance emphasized) BEX28 (Conductivity emphasized)	BEP22 Special organic layer Phosphoric acid treatment Zn-Co-Mo Steel sheet BEX28 Special organic layer Chemical conversion treatment layer Zn-Co-Mo Steel sheet	Ease of design (black exterior) • This is a black steel sheet that helps reduce costs by switching from steel sheet that is colored black. Heat dissipation • Has good surface heat emission to reduce the internal temperature of electrical and electronic devices. Surface conductivity • The contact resistance of the surface is low, so that this material can be grounded even with surface contact. Shielding of electromagnetic waves • Cuts the entry and leakage of electromagnetic waves that can cause noise.
SPCC, SPCD, high-strength substrate	SF		Chromate Chromate treatment Zn Steel sheet Ecological type Chemical conversion treatment layer Zn Steel sheet	• Can be made lighter and thinner while maintaining the strength of steel and magnetic attraction. • Holes opened by lack of piercing strength in aluminum foil, etc.

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