PHOSPHOR BRONZE

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Phosphor Bronze Chemical Specifications

ASTM B-103

Standard Specification for Phosphor Bronze Plate, Sheet, Strip and Rolled Bar

ASTM Spec. B-103 B-103 B-103 B-103 B-103 B-103 B-103
ASTM Spec. Annealed H01 H02 H04 H06 H08 H10
Temper Annealed Quarter Hard Half Hard Hard Tempered Extra Hard Spring Temper Extra Spring
Alloy 510 510 510 510 510 510 510
UNS Number C51000 C51000 C51000 C51000 C51000 C51000 C51000
Tensile Strength 43-58 58-73 76-91 88-103 95-110 100-114
Min – Max psi
Rockwell B – Scale 12-64 60-85 84-93 89-96 92-98 94-99
Min – Max
Superficicial 24-59 53-73 71-78 74-81 76-82 77-83
Min – Max
Alloy B-103 B-103 B-103 B-103
UNS Number Annealed H01 H02 H04
Chemical composition %
Alloy 510 511 511 511
UNS Number C51000 C51000 C51900 C52100
Tin 4.2-5.8 3.5-4.9 5.0-7.0 7.0-9.0
Phosphorus .003-.35 .03-.35 .03-.35 .03-.35
Iron, max 0.1 0.1 0.1 0.1
Lead, max 0.05 0.05 0.05 0.05
Zinc, max 0.3 0.3 0.3 0.3
Copper remainder remainder remainder remainder