C92300 Tin Bronze Casting Material

Tin Bronze

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Introduction

C92300 is a tin bronze sand-casting grade covered by ASTM B584. Typical applications include pump parts and impellers, valve bodies, bearings, bushings and gears.

FieldValue
DesignationC92300
Material TypeBronze
Sub TypeTin Bronze
Product Formcasting

Manufacturing Process

Sand Casting

Equivalent Materials

N/A

Similar Materials

N/A

Reference Standards

StandardStandard TitleEditionSpecificationIdentifier
ASTM B584Standard Specification for Copper Alloy Sand Castings for General Applications14C92300UNS C92300, source_designation 87-5-1-4, Navy PC

Physical Properties

N/A

Chemical Composition

ElementASTM B584Edition 14 · wt.%
Cu85.0–89.0[1]
Zn2.5–5.0
Sn7.5–9.0
Pb0.30–1.0
Fe≤ 0.25
Al≤ 0.005
Si≤ 0.005
P≤ 0.05
Sb≤ 0.25
S≤ 0.05
Ni+Co≤ 1.0[2]

Notes

ASTM B584 · Edition 14

[1] Cu: In determining copper minimum, copper may be calculated as copper plus nickel. Optional source-defined copper-minimum calculation; do not sum measured or specified limits automatically.

[2] Ni+Co: Nickel including cobalt; combined limit; In determining copper minimum, copper may be calculated as copper plus nickel. Optional source-defined copper-minimum calculation; do not sum measured or specified limits automatically.

Heat Treatment

ASTM B584–14

N/A

Mechanical Properties

Core Mechanical Properties

ASTM B584 — 14 · Table 2 — Normative

Propertybase
Elongation≥ 18 %
Tensile Strength≥ 36 ksi / 248 MPa (reference)[1]
Yield Strength≥ 16 ksi / 110 MPa (reference)[2]
Notes
  • separately cast test bar; 2 in. or 50 mm; 8.1

Notes

ASTM B584 · Edition 14

[1] Tensile Strength: inch-pound

[2] Yield Strength: inch-pound; 0.5% extension under load

Welding Conditions

N/A

Applications

Tin bronze ASTM B584 C92300 is used for pump parts and impellers, valve bodies, bearings, bushings and gears. Technical application guidance also lists hydraulic and steam equipment. Other cast components used in this material family include valve parts. Applications include power-transmission machinery, industrial fluid-handling equipment and selected marine systems.

Loading, lubrication and the actual process medium remain relevant; a steam-equipment example does not establish a general pressure or temperature rating.

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Last Updated: November 6, 2026

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