C92500 Leaded Tin Bronze, SAE 640 (CDA 925)

C92500 Leaded Tin Bronze, SAE 640 (CDA 925)

C92500 (CDA 925) is a tough bronze casting alloy produced in India, valued for its wear resistance in demanding industrial settings. Conex Metals is your trusted source for C92500 Leaded Tin Bronze, SAE 640, offering solids and made-to-order castings in both centrifugal (ASTM B271) and sand (ASTM B584) casting methods. We provide both off-the-shelf and special casting options to meet your specific needs. Our expert team will determine the optimal casting method based on your size, specification, and desired quantity.

C92500 Leaded Tin Bronze is a versatile alloy used in various demanding applications, including:

  • Gears
  • Automotive synchronizer rings
  • Bushings
  • Bearings
  • Pump components
  • Valve components
  • Marine hardware
  • Worm gears

Chemical Composition
%max., unless shown as range or min.)

Bronze Chemical Composition
Cu(1)SiSSnZnSbAlFePbNi(2)P(3)
Min./Max.88.0-90.00.0050.0510.0-12.00.50.20.0050.150.50.50.3
Nominal89--11-------

(1) In determining Cu min., Cu may be calculated as Cu + Ni.
(2) Ni value includes Co.
(3) For continuous castings, P shall be 1.5%, max.
Note: Cu + Sum of Named Elements, 99.3% min.

Mechanical Properties:
measured at room temperature, 68 F (20 C)

C90700 Mechanical Properties
TemperSection SizeCold WorkRockwell Hardness Vickens Hard.Brinell Hard.Shear StrengthFatigue Strength*Izod Impact StrengthYield Strength (0.5% ext. under load)Yield Strength (0.2% offset)Yield Strength (0.05% offset)Typ/ MinTempTensile StrengthEl
in.%BCF30T5005003000ksiksift-lbksiksiksiFksi%
mm.MPaMPaJMPaMPaMPaCMPa
As Sand Cast
M0100-----80--25022--TYP684420
0-----80--1720152--2030320
M0100-----65---017--SMIN683510
0-----65---0117--2024110
As Centrifugal Cast
M0200-----102---030--TYP685516
0-----102---0207--2037916
As Continuous Cast
M0700---------025--SMIN684010
0---------0172--2027610
As Permanent Mold Cast
M0500-----102---030--TYP685516
0-----102---0207--2037916
As Centrifugal Cast
M0200-----95---028--SMIN685012

*Fatigue Strength: 100 x 10 6cycles,
unless indicated as [N]X 106.

Applicable Specifications:

C90700 Applicable Specifications
ProductSpecification
IngotASTM B30
SandASTM B427
SAE J461, J462
CentrifugalASTM B427
SAE J462, J461
ContinuousASTM B505
SAE J461, J462