Product Specifications
|
Parameter |
Value |
|
Common Materials |
Tin bronze, Aluminum bronze, Brass |
|
Dimensional Tolerance Standard |
CT5-CT7 |
|
Surface Roughness |
Ra6.3-12.5μm |
|
Minimum Wall Thickness |
≥3mm |
|
Inspection Standard |
Pressure parts UT Level 2, cracks prohibited, pores strictly controlled |
|
Mechanical Properties (Aluminum Bronze) |
Tensile ≥450MPa |
|
Characteristics |
Wear resistance, corrosion resistance, good castability |
|
Typical Applications |
Bearing housings, worm gears, valve seats, plumbing valve bodies, wear-resistant bushing components |
Cast Copper Alloys for Wear and Corrosion
We produce copper alloy precision castings as a specialized product line. Copper alloys have different properties than steel. They have good castability and lower melting points. This allows us to make fine details. Our main materials are tin bronze, aluminum bronze, and brass. Tin bronze has excellent wear resistance. It is suitable for bearing housings and worm gears. Aluminum bronze has high strength. The tensile strength exceeds 450 MPa. It is suitable for valve seats and load-bearing wear parts. Brass has good machinability. It is suitable for plumbing valve bodies and various fittings.
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Dimensional Control and Surface Finish
The dimensional tolerance follows CT5 to CT7 standards. The surface roughness is Ra6.3 to 12.5 micrometers. The minimum wall thickness is 3 millimeters. Copper alloys flow well in the mold. This allows us to cast fine features. The finishing allowance is smaller than for steel castings. We perform UT Level 2 inspection for pressure parts. Cracks are not allowed. Pores are strictly controlled. We also control shrinkage to ensure the casting is dense.
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Mechanical Properties and Inspection
Aluminum bronze castings achieve a tensile strength of at least 450 MPa. Tin bronze castings offer superior wear resistance under oil lubrication. We strictly control pores and shrinkage to ensure the casting density. Our casting shop melts various copper alloys. We have our own spectrometer for chemistry analysis. This confirms every batch meets the standard composition. Our heat treatment shop does annealing to relieve internal stress. We keep mechanical test samples from each batch. Important parts get UT inspection. All test data is filed.
Complete Documentation
Each shipment comes with a material report and mechanical report. We are certified under ISO9001:2015. These quality processes are part of our daily operation. The minimum order quantity is 1 piece. We support custom orders based on your drawings. The sample lead time is about 3 months. We refund the sample fee with a larger order. We support third-party inspection and keep photo records.
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