Clean Series (Antivirus and Discoloration resistant copper alloy)｜Copper & Copper Alloy Business Unit, MITSUBISHI MATERIALS

Standard No.

CDA: C77100 (CLEANBRIGHT)
C44710(CLEANBRASS)

CLEAN series（CLEAN BRIGHT ,CLEAN BRASS) possesses antivirus and antimicrobial properties which is inherent characteristic of copper and copper alloys.
It is possible to form into various parts (such as doorknobs and handrails) which has antivirus and antimicrobial properties ,due to its high strength and formability.

Main features

Excellent antivirus and antimicrobial properties
Good workability
Discoloration resistance
White type: Warm color with silver white tinged with yellow (clean bright)
Yellow type: Brass color tinged with a little whiteness (clean brass)

Main applications

Door handle and door knob
Bed member (side rail, head and foot board, and the like.)
Nurse cart and side table member (top plate, handle, and the like)

Antivirus and Antimicrobial properties

We have confirmed that CLEAN BRIGHT has antivirus and antimicrobial properties for several viruses and bacteria.
For detail of antivirus and antimicrobial properties , please contact us.

Antivirus and antimicrobial properties for several viruses and bacteria are introduced on the website of Japan Copper Development Association.http://www.jcda.or.jp/english/tabid/146/Default.aspx

Testing laboratory : Kitasato Research Center for Environmental Science
Test method : Plaque Method

Testing laboratory : Kitasato University
Test method : film contact method

* Only for infomation.

Chemical composition

(Weight %)

	Cu	Sn	Ni	Zn
CLEAN BRIGHT	54		11	Rem.
CLEAN BRASS	70	0.5	2	Rem.

* Including inevitable impurities and trace additive elements

Physical properties

Property
Property	CLEAN BRIGHT	CLEAN BRASS
Specific Gravity(293K)	8.6	8.6
Electrical Conductivity (%IACS:293K)	7.6	19
Modulus of Elasticity (kN/mm²:293K)	120	118

Mechanical properties (Sampling direction :L.D.)

The mechanical properties of Clean series(welded tube: Representative Value)
	CLEAN BRIGHT	CLEAN BRASS
Tensile Strength （N/mm²)	560	530
0.2％Yield strength （N/mm²)	460	440
Elongation (%)	40	35

Corrosion resistance

Clean series have excellent dezincification corrosion resistance.

	ISO6509 μm
	maximum corrosion depth	average corrosion depth
CLEAN BRIGHT	<10	<10
CLEAN BRASS	<10	<10

Stress corrosion cracking resistance

It satisfies the stress corrosion cracking test by JIS method and ASTM method (both conducted in ammonia atmosphere).

Stress corrosion crack test result
	Stress corrosion cracking test
	JIS A	ASTM
CLEAN BRIGHT	○	○
CLEAN BRASS	○	○

Bendability

Welded pipe of clean series has excellent bendability.

Bending test of welded pipe

workability: push spreading test

Welded pipe of clean series has excellent push spreadability.

Push-spread test result of welded pipe

Discoloration resistance

Even if the clean series are used for one year at the actual medical institution, it maintains the initial metallic luster, and no noticeable discoloration is recognized.

Copper & Copper Alloy Business

Copper & Copper Alloy Business

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