C37000 (Free-Cutting Muntz Metal) Last Update: Dec 31, 2003( s" C& q( r9 m4 w$ ~ `
/ M. ~4 P7 ]4 F3 q tChemical Composition1 E, d' X/ j$ K) J
(%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. % }; g; p" Q' o/ {* y& t' K& }
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Applicable SpecificationsProductSpecificationTubeASTM B135
# d5 u* ?) [0 [6 f7 I' DMILITARY MIL-T-46072. K0 n( K2 c0 f1 l# ?: q
Common Fabrication ProcessesMachining
% v+ s/ o- s$ A5 k2 u$ v, ~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) J- t' {3 R; B. h* a/ B) Q
Mechanical Properties (measured at room temperature, 68 F (20 C)TemperSection8 Z& i0 a0 k& O& d' s
SizeCold) {6 m8 M) Z M) |/ Q
WorkTyp/# V. B& n4 V5 [. n/ R. L2 \: b
MinTempTensile" j0 |7 t4 r, u4 \: r6 Y# R1 D* X
StrengthYield
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- `& ]+ D6 e) \" C1 J(0.5% ext.# @2 S) `7 u' D# H0 c* a
under load)Yield% [' R: [7 }8 v, @- r: _* z
Strength
) k9 z+ ^6 X2 E8 K$ b(0.2%
$ T6 N# j% O8 j' Boffset)Yield
- P6 o$ {3 g" x0 `2 |, yStrength% U$ w9 y S. {. ^) g6 ~6 }
(0.05%! N4 P8 }' u+ B
offset)ElRockwell6 g V* F3 ]! g) S0 Y0 H
HardnessVickens
" u7 J. |- e2 WHard.Brinell
$ P8 P) W# [' Q& d- gHard.Shear) v# C: q, [ f1 G
StrengthFatigue
3 `) U. X6 w3 \; gStrength*Izod6 R( \" j$ t9 J8 F0 W
Impact# Q; m* A! e: E, a' _* S: j& e
Strength5 j2 T( X$ @3 x4 ^+ ]9 W& k
in.%7 X9 q* E A! @4 p
Fksiksiksiksi%BCF30T5005003000ksiksift-lb4 z+ t% s3 s9 J8 |
mm.
% e* Y% ]* ?1 g) d" o) A7 |6 B% k4 `! m7 _4 b- r
CMPaMPaMPaMPa
1 y$ W3 @: x% u q6 v2 ? }7 u# U8 N2 K$ X/ ~' m
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MPaMPaJTubeH040.035TYP688060--685--74-----0.0$ S$ F3 t O) i2 S: a& u
0.0% K3 F0 j+ Z- L' b+ `- S" u' _0 b
- r8 X: L$ X" |- Z20552414--685--74-----0.0H800.025TYP687045--1075--67-----0.0; P" K! e8 v" V# E
0.0
4 x% Y, z; j2 u/ O; ?: d/ b0 y& y8 }* V) b J- {# u1 N
20483310--1075--67-----0.0O500.00TYP685420--40--8043-----0.0$ ~; ~6 x. e8 n' N- m* a. n
0.0& l$ o- c7 D0 r. ^" T; r
# O0 l5 X" i( X3 Z$ J20372138--40--8043-----0.0*Fatigue Strength: 100 x 10 6cycles,
* A4 L2 _( Y. n! funless indicated as [N]X 106. : |$ Z- P V" H& `0 h* Q' N
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