C37000 (Free-Cutting Muntz Metal) Last Update: Dec 31, 2003: v5 l" N3 m5 k- D; _
( ]# u; g, I& E$ G+ O6 Y5 D2 `Chemical Composition- W6 _ j3 [. O- F9 x
(%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. ]; ~. U3 P+ {$ K
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! h- O) [1 ~, m2 l" `4 BApplicable SpecificationsProductSpecificationTubeASTM B135
7 N- t: E! j: o& ?. Z: A8 UMILITARY MIL-T-46072
2 A# T# T/ k( _5 M+ p$ A/ a1 m, [Common Fabrication ProcessesMachining
; o g) ]* P/ ?1 F2 J3 u# a A2 N( WFabrication 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# V8 \1 J/ n. ?8 |* m. I3 Y$ A
Mechanical Properties (measured at room temperature, 68 F (20 C)TemperSection
5 `" Z- l# ?# bSizeCold
% _ e+ U6 H4 @- a5 C gWorkTyp/
! \$ k- e9 W, i& v% S- f. VMinTempTensile4 y. ^7 X) Z5 S. x6 r
StrengthYield& h3 b5 u* ? `
Strength
! E; F/ S( {, Y(0.5% ext. d4 ^, p- S D$ g4 h- t
under load)Yield [$ o! D$ ?* {4 C: g2 D5 e
Strength
. _3 E0 S' m* G(0.2%
1 ^1 x/ B: u# F0 ioffset)Yield
; e: k$ e: _; ^+ V) M$ T8 oStrength
/ L( S# g+ b+ Q% @( G2 p(0.05%
F3 h" n6 f* M" Y& ]! {offset)ElRockwell
+ C2 }1 i( d. U A+ _, \7 OHardnessVickens
9 y8 d; X$ o7 v. b) b. Y$ KHard.Brinell
6 }4 y% ]& w4 p: I2 EHard.Shear
6 f( T8 \2 H+ @1 T% i3 E5 YStrengthFatigue+ b, s* U; Q& a+ g9 ~, U% D
Strength*Izod
4 D* D1 r: J. \Impact
9 d, s \! p/ _6 {Strength
: E l; X. j7 y1 Y2 G1 ~) Min.%
2 S* ]+ U4 S; }- s) T1 yFksiksiksiksi%BCF30T5005003000ksiksift-lb! p/ v5 a7 K" R# z. m( U% R2 O
mm.- @* k; b; Q* o7 D/ Y
5 s- g& w. Y, C3 ^' @ D; s% X8 f: DCMPaMPaMPaMPa
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k& ~% E* `. j G' N2 Z) }; P& V. L
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6 i+ ~4 N1 [% W6 k- M( `MPaMPaJTubeH040.035TYP688060--685--74-----0.0$ V4 B3 l) {9 ~( [
0.0
: [4 ^) Q( e- a
5 N# m( i. w- [3 \, l/ a20552414--685--74-----0.0H800.025TYP687045--1075--67-----0.02 y6 |$ n5 `* ]5 Y7 z
0.0& V. o" U: O6 T, s0 x
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20483310--1075--67-----0.0O500.00TYP685420--40--8043-----0.0
6 ~/ x; e# Q9 N5 F$ X( m0.0
6 h1 e. a' M6 I" d
" Q! g6 b, i4 I8 }- i& Q" V0 Z20372138--40--8043-----0.0*Fatigue Strength: 100 x 10 6cycles,
/ v5 v- t6 v9 y( Gunless indicated as [N]X 106. 8 K) N' _6 s! \& v% [# V
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