Phosphorus Bronze

Phosphorus Bronze

Standard Nearest ISO Designation International Equivalent Chemical Composition by Wt. % Conditions
Cu% Sn% P% Pb% Zn% Others
BS 2874 PB - 102 CuSn5 IS 7811, DIN 17662 / 17672, ISO 427-1983, JIS H 3270 C-5102, ASTM B139 C5100 Rem 4.2 - 5.5 0.02 - 0.40 0.02 max 0.03 max Fe-0.10max Total Imp 0.50% max M
BS 2870/2875 PB - 103 CuSn6 DIN 17662 / 17672, ISO 427-1983, JIS H 3270 C-5191, C-5191 Rem 6 - 7.5 0.02 - 0.40 0.02 max - Total Imp 0.20% max O
BS 2874 PB - 104 CuSn8 DIN 17662 / 17672, ISO 427-1983, JIS M 3270 C-5212, ASTM B139 C52100 Rem 7.2 - 9 0.02 - 0.40 0.02 max 0.03 max Total Imp 0.30% max M

Standard Mechanical Properties Applications
UTS N/mm2 E% Y. S. Rp 0.2 Hardness
BS 2874 PB - 102 260 - 500 12 25 N/mm2 80-410 HB -
Having Good Endurance, corrosion and abrasion resistance. Nut, Bolts, Washers, Cotterpins, Automotive's Systems, Marine Engg, Aviation Industries, Mining & Drilling Equipments, Clutch Discs etc.
BS 2870/2875 PB - 103 340 - 400 55 250 max 85 min
Used in electrical motor, penal, Generator Aircraft Engineering, Heavy Engg. Excellent Tarnish & Corrosion Resistance to a wide range of waters & chemicals in such as paper and textile mfg. plants.
BS 2874 PB - 104 450 - 550 15 - 20 300 - 400 -
This wrought alloy is a high performance product with exceptional bearing wear and properties, combined with excellent fatigue properties and corrosion fatigue resistance in marine. Applications and other corrosive environments. Applications include high duty fasteners, bearings and bushes, drive shafts, pump and valve components, high performance engine valve guides, electrical clamps, connectors and switchgears
* Rods / Bars for electrical purposes the conductivity / resistively required shall be as agreed.
* The examples above mentioned are only indicative.
* M - As Manufactured
* O - Anne lead
* H - Hard
Phosphorus Bronze


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