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Trademark Alloys

Trademark Alloys

Form Size Range
1/8″ – 9″ diameter
4mm – 41mm A/F
10g – 21g

Columbia Metals has developed a unique range of proprietary alloys offering exceptional mechanical properties for demanding applications. We have worked with leading European manufacturers to introduce materials that offer a unique blend of properties. These alloys have become widely recognised and specified by leading OEMs for use in safety critical and high performance environments.

Our principal trademark alloys are:

NIBRON SPECIAL® An extra high strength nickel bronze with excellent corrosion resistance

COLSIBRO® A copper-nickel-silicon alloy with good thermal and electrical conductivity

TROJAN A copper-nickel-silicon alloy with superior strength and good ductility

COLDUR-A® A corrosion-resistant silicon bronze used in architectural and metalworking applications

COLPHOS 90 A phosphor bronze with outstanding free-machining characteristics

Trademark Alloys
  Related Specifications Mechanical Properties
Alloy Name BS UNS BS EN Others Ultimate Tensile Strength N/mm² Minimum Yield Strength N/mm² Elongation % Hardness HB  
Beryllium Copper (BECOL-25) CB­10­1 C1­72­00 CW­10­1C AS­TM B1­96­; CD­A 17­20­0
CHROMZIRC-328 CC­10­2 C1­81­50 CW­10­6C BS­­4­5­­77 A/­­2­/­­2; IS­O 51­82 45­0 40­0 20 14­0H­V
COLDUR-A® CS­10­1 C6­55­00­; C6­56­00 CW­11­6C AS­TM B9­8; AS­TM B2­49 48­5 26­0 20
COLPHOS 90 C5­44­00 AS­TM B1­39­; AS­TM B1­03 34­5-45­0 8-18
COLSIBRO® DT­D4­98 C6­47­00­; C1­80­00 CW­11­1C 2.­08­55 55­0-64­0 43­0-59­0 10 15­5-18­0
COLSPEED 90 C6­41­10 70­0-76­0 40­0-50­0 10-13 20­0-22­0
CZ132 / COLFIT DZR CZ­13­2 C3­53­30 CW­60­2N BS­28­74 35­0-38­0 20-25
NIBRON SPECIAL® DT­D9­00­/4­80­5 C7­24­00 2.­15­04 77­0-85­0 55­5-63­0 12 22­9-24­0
PB104 / COLBRONZE PB­10­4 C5­21­00 CW­45­3K DT­D 26­5A­; BS B2­4 45­0-50­0 30­0-40­0 15-20
S32550 / AMAZON 256 S3­25­50 AS­TM A2­40­; AS­TM A4­79 76­0 55­0 25 28­0 ma­x
S32760 / SEACOL-760 S3­27­60 F5­5 75­0 550 25 28­0 ma­x
SILVERSPEED-XL 56­0 45­0 20 18­5H­V
TROJAN C7­02­50­; C7­02­52 CW­11­2C 2.­08­57 69­0-80­0 57­0-75­0 10 19­0-20­0
ZAMALLOY (CW704R) C6­70­00 CW­70­4R BS­28­74­; UZ­19­Al­6 78­0-83­0 54­0-59­0 7-10

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