P in D ia m e te r Ra nge .0 25" -.03 7" (0, 63 5 -0, 9 4 0m m )
M a te ria l Be r yllium Coppe r Cu rre n t R a tin g (a m p s ) 4.50
Fin g e rs 6Co m p lia n c y .0 11" (0, 279m m )
Le n g th .0 80" (2 , 032m m ) G roup Cod e D
CO NT ACT MATERIAL:
BERYLLIUM COPPER ALLOY 172 (UNS C17200) per ASTM B 194
Pro p e rtie s o f BERYLLIUM COPPER:
Che mical co mp o sition: Cu 9 8.1% , Be 1.9 %
Hard ne ss: 36 -43 Ro ckwe ll C
De nsity: .29 8 lb s/in3
Ele ctrical Co nd uctivity: 22% IACS*
Re sistance : 10 mW Max
Op e rating Te mp e rature : -55° C/+125°C
Me lting po int: 9 80 ° C/86 5° C (liq uid us/so lid us)
Stre ss Re laxatio n : 96 % of stre ss re mains afte r 1,0 0 0 ho urs @ 10 0 ° C; 70 % of stre ss re mains afte r 1,0 0 0 hours @ 20 0
° C
*Inte rnatio nal Anne ale d Co p p e r Stand ard , i.e . as a % o f p ure cop p e r.
Since Be Cu lo se s its sp ring p ro p e rtie s o ve r time at hig h te mp e rature s; it is rate d for co ntinuo us use up to 150 °C. Fo r
ap p lications up to 30 0 ° C, Mill-Max o ffe rs othe r mate rials. Co ntact Te ch Sup p o rt fo r mo re info.
†
†
LOO SE PIN /RECEPTACLE US ED:
1304 (Brass Alloy)
BRASS ALLOY 360 per ASTM B 16, or 385 per ASTM B455
Pr o p e r t ie s o f BRASS ALLOY 360 AST M B 16 :
Che mical co mp o sition: Cu 6 3% (max), Pb 3.7% (max)†, Fe .35% (max), Zn re maind e r
Te mp e r as machine d : H0 2/H0 4
Yie ld S tre ng th: 25-45 ksi
Te nsile stre ng th: 57-80 ksi
Hard ne ss as machine d : 80 -9 0 Ro ckwe ll B
Ele ctrical co nd uctivity: 26% IACS*
Me lting po int: 10 0 0 ° C/840 ° C (liq uid us/solid us)
Pr o p e r t ie s o f BRASS ALLOY 385 AST M B 455:
Che mical co mp o sition: Cu 6 0 % (max), Pb 3.5% (max)†, Fe .35% (max), Zn re maind e r
Te mp e r as machine d : H0 2/H0 4
Yie ld S tre ng th: 16 ksi(min)
Te nsile stre ng th: 48 ksi(min)
Hard ne ss as machine d : 80 -9 0 Ro ckwe ll B
Ele ctrical co nd uctivity: 28% IACS*
Me lting po int: 10 0 0 ° C/840 ° C (liq uid us/solid us)
Afte r machining , brass parts are ofte n anne ale d (so fte ne d ) for sub se q ue nt b e nd ing , swag ing o r crimp ing . A partial anne al
d o wn to 60 ±10 RB is re co mme nd e d for 9 0 ° be nd s, a full anne al do wn to 35±15 RB is re co mme nde d for pins o r te rminals that
are swag e d (rive te d ) to a circuit b o ard o r crimp e d to a wire .
No t e : Plate d Brass parts ne e d a b arrie r p late to pre ve nt zinc d iffusio n, 50 µ” min. nicke l o r 10 0 µ” min. co p p e r is
re co mme nd e d b y AST M B 545 and 579 . AS TM B 488 also re co mme nds a 50 µ” min. nicke l b arrie r p late be ne ath g o ld to
p re ve nt co p p e r diffusion inhe re nt with all co p p e r allo y p ro d ucts.