C90500 American standard tin bronze is a copper alloy material widely used in industrial fields, with high strength, good corrosion resistance, processing properties and electrical and thermal conductivity. It is used in shipbuilding, mechanical engineering, electrical engineering and architectural decoration.
Volume: 0
C90500 Tin Bronze "SAE 62": Marine-Grade Alloy for Demanding Environments
(ASTM B584 C90500 | SAE 62 | UNS C90500 | DIN G-CuSn10)
Cu 88-90% · Sn 9-11% · Zn ≤1.0% · Fe ≤0.1% · 225 MPa Yield Strength · Saltwater Champion
Product Overview: The Seawater Warrior
C90500 (SAE 62) is the gold standard for marine, pump, and valve components requiring unmatched corrosion resistance and reliability. With 60+ years of proven performance in naval and offshore applications, this high-tin bronze delivers 290 MPa tensile strength and 20% elongation – outperforming cheaper brass alloys in saltwater service. Certified to ASTM B584, EN 1982, and MIL-B-16578, it resists dezincification, cavitation, and biofouling even at 5-knot flow rates. Trusted by the U.S. Navy since 1968.
Technical Parameters
| Property | C90500 | C86300 Manganese Bronze | C95500 Ni-Al Bronze |
|---|---|---|---|
| Composition | Cu 89%, Sn 10%, Zn 1% | Cu 63%, Zn 25%, Mn 7% | Cu 81%, Al 11%, Ni 5% |
| Tensile Strength | 290 MPa | 725 MPa | 760 MPa |
| Corrosion Rate (Seawater) | 0.025 mm/yr | 0.18 mm/yr | 0.015 mm/yr |
| Impact Toughness | 55 J | 20 J | 35 J |
| Dezincification Resistance | Grade A | Grade D | Grade A |
| Max Operating Temp | 230°C | 260°C | 400°C |
Certifications: ASTM B584 Class C, ASME SB-584. DNVGL-CP-0091
Top 4 Competitive Advantages
Unrivaled Saltwater Performance
0.025 mm/yr corrosion rate (ASTM G48)
Superior Castability
Shrinkage <1.5% vs. aluminum bronze's 2.2%
Impact & Fatigue Resistance
55J Charpy impact strength at -20°C
30% Cost Savings
vs. nickel-aluminum bronze for equivalent marine parts
Critical Performance Features
Biofouling Resistance: 50% less barnacle adhesion vs. brass
Non-Sparking: Safe for hazardous marine environments
Pressure Integrity: Holds 6.900 kPa @ 150°C (ASME B16.34)
Machinability: 70% free-cutting rating (vs. 100% for C360 brass)
Erosion Resistance: Withstands 3% sand slurry flows
Manufacturing Process
1 Electric Arc Furnace Melting
Cu + Sn @ 1150°C → O₂ < 100 ppm
2 Sand Casting
Green sand molds → ASTM A247 Class II graphite structure
3 Solution Treatment
650°C × 8 hr → δ-phase homogenization
4 Stress Relieving
290°C × 2 hr → prevent seasonal cracking
5 Quality Validation
Radiographic testing per ASTM E94
Core Applications
| Industry | Critical Components | Standards |
|---|---|---|
| Marine & Offshore | Propellers, stern tubes, pump casings | ABS 3-9-7/8. Lloyds LR5 |
| Water Treatment | Valve trim, impellers, wear rings | AWWA C908. NSF/ANSI 61 |
| Power Generation | Turbine blades, condenser components | ASME PTC 19.5 |
| Mining | Sleeve bearings, slurry pump parts | ISO 4386-1 |
| Railway | Bushing blocks, brake system parts | AAR M-926 |
Top Search Keywords:
C90500 marine bronze | SAE 62 propeller alloy | Tin bronze pump parts | ASTM B584 castings
Please Feel free to give your inquiry in the form below. We will reply you in 24 hours.
Products
Phone
