C37000 (Free-Cutting Muntz Metal) Last Update: Dec 31, 2003
$ w. M, T$ [1 H" F6 R5 d/ Y T5 w' t) I5 p* d. h
Chemical Composition8 R' ]: @+ ~$ q+ P
(%max., unless shown as range or min.)CuFePbZnMin./Max.59.0-62.0.15.8-1.5Rem.Nominal60.0-1.039.0Note: Cu + Sum of Named Elements, 99.6% min.
. s& b. M: K- x, |6 ?& [8 C3 G
' w* g9 D D! l3 @2 T9 I4 Q
: A5 s( u3 L$ R- sApplicable SpecificationsProductSpecificationTubeASTM B135
$ c2 }( c6 ] SMILITARY MIL-T-46072
: \- A0 \9 H$ o6 eCommon Fabrication ProcessesMachining 3 ~, M$ c' E6 \4 [3 }) a9 f, F. J
Fabrication PropertiesJoining TechniqueSuitabilitySolderingExcellentBrazingGoodOxyacetylene WeldingNot Recommended Gas Shielded Arc WeldingNot Recommended Coated Metal Arc WeldingNot Recommended Spot WeldNot Recommended Seam WeldNot Recommended Butt WeldFairCapacity for Being Cold WorkedFairCapacity for Being Hot FormedExcellentMachinability Rating70
$ Z, f2 K# s% u* f6 OMechanical Properties (measured at room temperature, 68 F (20 C)TemperSection
l% J) @& Q7 ^& u2 SSizeCold
% P$ g% X( y! n3 V, W7 q5 GWorkTyp/
7 U* _$ B2 L$ D3 A6 n5 h: I6 NMinTempTensile
5 z9 h! s+ V) u, _3 FStrengthYield" W' U5 ?3 w( U: e9 @" p
Strength
4 I& [" T0 U( ~5 V- f# n(0.5% ext., l) T# U8 j( X4 F$ a: C
under load)Yield
7 x" C% A$ W* E8 K) C! fStrength" A5 w8 G* Q) H
(0.2%
! i& `( _& V, ~' s9 `9 V U7 O1 Koffset)Yield
4 {+ b3 {7 N2 J1 y* D8 ]3 f4 }Strength' ] t. r2 U+ l* W
(0.05%
/ N- Q. t3 h; zoffset)ElRockwell
' `. p" D' A1 L) GHardnessVickens
. I" P2 L" l4 H1 v% ]8 M: MHard.Brinell
L/ @& b; S& N- ~: _Hard.Shear
. N+ m. k2 O- {# B) KStrengthFatigue
/ w! z2 z; ]" ?( P8 RStrength*Izod
, |/ I6 {" i5 {- YImpact
% M* I9 G) U% p i. P- G1 h7 BStrength2 |" e# a$ m: c
in.%
& }+ L1 m: g1 R6 v0 t- l7 m3 ?Fksiksiksiksi%BCF30T5005003000ksiksift-lb- a3 w V( A3 T3 d( T8 s
mm.* k' o* d! f( P# j$ Y
4 c7 H7 q& u4 n& W& Y! [! ?: RCMPaMPaMPaMPa6 m0 `+ S3 n3 N6 k ? g
, f' U* D+ j4 d6 }) R ]
0 B3 P0 y2 x C- ~* Y/ q
" n I3 X' t$ v8 k
1 w2 D6 N2 z( k& G1 R0 M2 k
, V, S" G7 a; g; X6 @; D
' w7 Y2 v2 d/ U" p0 i4 x6 e. s3 M7 i4 x4 |! h7 T; X! }
MPaMPaJTubeH040.035TYP688060--685--74-----0.0
/ s& ` i+ o; I2 X1 V" i$ E0.0$ p0 U; g$ B# A2 _$ R2 x$ \
1 T& l5 f( |$ B& I! ?
20552414--685--74-----0.0H800.025TYP687045--1075--67-----0.0$ k! s' z& [! i
0.0
- d. S0 U. s7 ]- d/ X5 ]- |. Q4 r% V8 [
20483310--1075--67-----0.0O500.00TYP685420--40--8043-----0.0$ s2 j& v/ l: a) Z6 j
0.04 ~! o9 \* J5 g: z8 |2 W2 m6 V/ A
7 g/ _; @, _4 C% z: U20372138--40--8043-----0.0*Fatigue Strength: 100 x 10 6cycles,
; p0 C* H) F1 v4 sunless indicated as [N]X 106. i% D5 i/ n7 Y
Physical PropertiesUS CustomaryMetricMelting Point - Liquidus1650 F899 CMelting Point - Solidus1630 F888 CDensity0.304 lb/in3 at 68 F8.41 gm/cm3 @ 20 CSpecific Gravity8.418.41Electrical Resistivity38.4 ohms-cmil/ft @ 68 F6.38 microhm-cm @ 20 CElectrical Conductivity27 %IACS @ 68 F0.158 MegaSiemens/cm @ 20 CThermal Conductivity69.0 Btu · ft/(hr · ft2·oF)at 68F119.4 W/m · oK at 20 CCoefficient of Thermal Expansion11.6 ·10-6 per oF (68-572 F)20.9 ·10-6 per oC (20-300 C)Specific Heat Capacity0.09 Btu/lb/oF at 68 F377.1 J/kg · oK at 293 KModulas of Elasticity in Tension15000 ksi103400 MPaModulus of Rigidity5600 ksi38610 MPa | 
发表于 2007-5-15 21:22:49