C93200 SAE 660 Bearing Bronze: Hoch-Lead Tin Bronze
ASTM B505/B271 · Published: 2026-06-02 · Updated: July 2026
C93200 (SAE 660) is a continuously cast high-lead tin bronze (81-85% Cu, 6.3-7.5% Sn, 6-8% Pb, 2-4% Zn) that is the global standard bearing bronze. The lead content provides excellent embeddability (absorbing dirt/debris without scoring the...
C93200 (SAE 660) ist ein continuously cast hoch-lead tin bronze (81-85% Cu, 6.3-7.5% Sn, 6-8% Pb, 2-4% Zn) das ist der global standard bearing bronze. Der lead content provides excellent embeddability (absorbing dirt/debris ohne scoring der shaft) und anti-seizure properties unter boundary lubrication conditions. Widely used für sleeve bearings, thrust washers, wear plates, und pumpe impellers in industrial machinery. Self-lubricating mit grease grooves oder öl impregnation. Zerspanbarkeit ist 70% von C36000 brass. Nicht recommended für hoch-geschwindigkeit oder hoch-load applications ohne forced lubrication—consider C93700 (80-10-10) für higher PV limits.
Quick Facts
| Kategorie | Brass & Bronze |
| Norm | ASTM B505/B271 |
| Density | 8.93 g/cm³ |
| Yield Strength | 125 MPa (18 ksi) |
| Tensile Strength | 240 MPa (35 ksi) |
Global Equivalents & Cross-Reference
| Alternative Standard / Grade | Action |
|---|---|
| EN CuSn7Zn4Pb7 | Compare |
| CC493K | Compare |
| JIS CAC406 | Compare |
| ZCuSn5Pb5Zn5 | Compare |
| SAE 660 | Compare |
Verwandt Materials
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Frequently Asked Questions
Was ist der difference zwischen C93200 und C95400 aluminum bronze bearings?
C95400 aluminum bronze (9-11% Al) offers dramatically higher strength (255 MPa YS) und hardness (150-170 HB) für hoch-load, niedrig-geschwindigkeit applications. C93200 ist superior für moderate-geschwindigkeit applications requiring embeddability und conformability. C95400 requires harder shafts (HRC 35+) und better lubrication; C93200 ist mehr forgiving mit softer shafts und intermittent lubrication. Choose C93200 für allgemein industrial bearings; C95400 für heavy ausrüstung und aerospace bearings.
References & International Standards
- ASTM International. Norm Specifications für Stahl & Metal Alloys. astm.org
- International Organization für Standardization (ISO). Metallic Materials — Cross-Referenz Database. iso.org
- American Iron und Stahl Institute (AISI). Stahl Güte Designations & Equivalents. steel.org
- European Committee für Standardization (CEN). EN Stahl Standards & Numbering System. cencenelec.eu