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Home » Products » C86300 (SAE 430B) Manganese Bronze » C86300 (SAE 430B) Manganese Bronze Tube

C86300 (SAE 430B) Manganese Bronze Tube

C86300 Manganese Bronze (SAE 430B) is a high strength alloy used as bushings, bearings, gears, gibs, screw down nuts, bridge pins, valve stems and hydraulic cylinder parts.

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SKU: C86300 (SAE 430B) Manganese Bronze Tube Categories: C86300 (SAE 430B) Manganese Bronze, Continuous Cast Alloys, Manganese Bronze Products
  • Description
  • Stock Allowances
  • Specifications
  • Chemical
  • Physical
  • Mechanical
  • Fabrication

Product Description

C86300 Manganese Bronze (SAE 430B) is a high strength alloy used as bushings, bearings, gears, gibs, screw down nuts, bridge pins, bridge plates, valve stems and hydraulic cylinder parts. This alloy is generally used in heavy load applications. It performs best at low speeds with reliable lubrication. It finds use in Steel Mill Equipment, Wood Pulp Industry, Marine Applications and Earth Moving Machinery. Larger rings and tubes can be centrifugal or sand cast.

Other terms for this alloy are: Manganese Bronze Bar, CDA 86300, High Tensile Manganese Bronze, SAE 430 B, SAE430B, ASTM B147-8C, High Strength Yellow Brass, ASTM B505-C 86300, ASTM B271-C 86300, Manganese Bronze Rounds, Manganese Bronze Tubes, ASTM B22 C86300 bridge plates, SAE J461; SAE J462, AMS 4862, MIL C 15345 Alloy 6, QQC 390 Alloy 86300, MIL C22229 Composition 8, Ingot # 424.

Notice: The weights listed are the best estimates of the actual weights we will ship. They are a combination of the calculated theoretical weights and an average of actual weights. Our weights are conservative to the heavier side but there may be slight variations in weight from bar to bar.

The Physical, Fabrication and Thermal Properties shown here represent reasonable approximations suitable for general engineering use. Due to commercial variations in compositions and to manufacturing limitations, they should not be used for specification purposes.

C86300 Stock Allowances: Round Bar and Tube

Finished Outside DiameterInside DiameterOutside Diameter
Up to 3″ inclusive-0.0505″ to -0.0955″+0.0525″ to +0.0725″
Over 3″ to 4.5″ Incl.-0.0900″ to -0.1450″+0.0790″ to +0.1090″
Over 4.5″ to 5.5″ Incl.-0.1000″ to -0.1650″+0.1050″ to +0.1450″
Over 5.5″ to 9″ incl.-0.1350″ to -0.2100″+0.1630″ to +0.2130″

Equivalent Specifications

ASTM B505/B505M (Copper Alloy UNS No. 86300 Continuous Cast)
ASTM B271 (Copper Alloy UNS No. 86300 Centrifugal Cast)

Reference Specifications

SAEFederal SpecificationMilitary SpecificationIngot NumberCDA
SAE 430B
SAE J461
SAE J462
QQ-C-390MIL-C-22229 Comp. 8424C86300

Equivalent specifications are verified and updated annually.
Specifications shown are current as of May 4, 2010.

Chemical Composition (%)**

Cu*FeAlMnZnSnPbNi***
60.0 – 66.02.0 – 4.05.0 – 7.52.5 – 5.022.0 – 28.00.20 max.0.20 max.1.0 max.

Sum of all named elements = 99.0%

*In determining copper minimum, copper may be calculated as copper plus nickel
** Values shown pertain to ASTM B505/505M only
Values for ASTM B271 differ slightly. Contact our QA department for clarification
*** Nickel including Cobalt

Physical Properties

EnglishMetric
Melting Point – Liquidus1693° F923° C
Melting Point – Solidus1625° F885° C
Density0.283 lb/in3 at 68° F7.83 gm/cm3 @ 20° C
Specific Gravity7.8307.83
Electrical Conductivity (Annealed)8% IACS @ 68° F0.046 MegaSiemens/cm @ 20° C
Thermal Conductivity20.50 Btu · ft/(hr · ft2·°F) @ 68° F35.5 W/m · °K @ 20° C
Coefficient of Thermal Expansion12 · 10-6 per °F (68-572° F)21.6 · 10-6 per °C (20-300° C)
Specific Heat Capacity0.090 Btu/lb/°F @ 68°F377.1 J/kg · °K @293 K
Modulus of Elasticity in Tension14,200 ksi97,900 MPa

Physical Properties provided by CDA

Mechanical Properties

 EnglishMetric
Tensile Strength, min.110 ksi758 MPa
Yield Strength, min.62 ksi427 MPa
Elongation in 2 in. or 50 mm, min.14%14%

* In determining copper minimum, copper may be calculated as copper plus nickel
** Values shown pertain to ASTM B505/505M only
Values for ASTM B271 differ slightly. Contact our QA department for clarification
*** Nickel including Cobalt

Machinability Rating 8 (Free Cutting Brass = 100)

Fabrication Practices

SolderingPoor
BrazingPoor
Oxyacetylene WeldingPoor
Gas Shielded Arc WeldingPoor
Coated Metal Arc WeldingGood
Carbon Arc WeldingPoor

Fabrication Practices provided by CDA

Thermal Properties

Stress Relieving
Temperatures
500 F or 260 C
Time @
Temperature
1 Hr. per inch
of wall thickness
Responds to Heat
Treatment
No

Thermal Properties provided by CDA

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