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C90800

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Continuous Cast • GreenAlloys™

Tin bronze alloys such as C90800 are typically found in gear and high-strength bushing and bearing applications where high strength, low speeds, and heavy loads are present. Other high-strength applications for these alloys are pump impellers, piston rings, steam fittings, and valve bodies. C908 tin bronze castings are utilized in movable bridge components, turntables for bridges, and other structures for fixed and expansion bearings with slow or intermittent movement and heavy loads.

C90800 SPEC SHEET CONCAST LINE CARD

C90800

Product Description: Tin Bronze
Solids: 1" to 6" O.D.
Tubes: 1" to 6" O.D.
Rectangles: Up to 10"
Standard Lengths: 144"
Shape/Form: semi-finished, mill stock or near-net shapes, anode, bar stock, billet/bloom, squares, hex, plate, profile or structural shape, flats/rectangular bar
Compliance: C90800 is compliant with key legislation including (1) Federal Safe Drinking Water Act - SDWA, (2) S. 3874 Federal Reduction of Lead in Drinking Water Act, (3) California AB1953, and (4) Vermont Act 193

Typical Uses

Industrial: speed reducers, worm gears

Similar or Equivalent Specification

CDA ASTM SAE AMS Federal Military Other
C90800 B427          

Chemical Composition

Cu%1 Pb% Sn% Zn% Fe% P% Ni%2 Al% S% Sb% Si%
Chemical Composition according to ASTM B427-21

1In determining Cu min., Cu may be calculated as Cu + Ni.  2Ni value includes Co.
Note: Cu + Sum of Named Elements, 99.4% min. Single values represent maximums.
85.00-
89.00		  
0.25		 11.00-
13.00		  
0.25		  
0.15		  
0.30		  
0.50		  
0.005		  
0.05		  
0.20		  
0.005

Mechanical Properties

Tensile Strength, min Yield Strength, at 0.5% Extension Under Load, min Elongation, in 2 in. or 50 mm min Brinell Hardness (500 Kg load) Remarks
ksi MPa ksi MPa % typical BHN  
45 310 22 152 14 95
Mechanical Properties according to ASTM B427-21

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C72900 (AMS 4598) C83600 C83800 C84200 C84400 C84800 C85700 C86200 C86300 C86400 C86500 C86700 C87850 C89320 C89325 C89520 C89831 C89833 C89835 C89844 C90300 C90500 C90700
C90800 C91000 C91100 C91300 C91600 C91700 C92200 C92300 C92500 C92700 C92800 C92900 C93200 C93400 C93500 C93600 C93700 C93800 C93900 C94000 C94100 C94300 C94700
C94700HT C94800 C95200 C95300 C95300HT C95400 C95400HT C95410 C95410HT C95500 C95500HT C95510 C95520HT C95600 C95800 C95900 C96400 C96900HT C97300 C97600 C97800 C99500 CONCAST380
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