C93700/CuSn10Pb10

Characteristic
Most commonly used bearing alloy, found in bearings operating at moderate loads and
moderate-ta-high speeds, as in electric motors and appliances. Other characteristics, material
for plain bearings in mechanical engineering with medium loads, also very good emergency
running and high wear resistance.

Common name	Material description	World specifications: European	World specifications: British	World specifications: American
High-leaded tin bronze	CuPb10Sn10-C / CuPb10Sn10-B	CC495K / CB495K (EN 1982)	LB2 (BS 1400)	C93700 / SAE64 (ASTM B 505)

Other name: Blybronze, BrO10S10, CAC603.
The equivalence between the standards is not absolute and some variations in composition can exist.

Similar or Equivalent Specifications

UNS	ASTM	SAE	AMS	Federal	Military	Other
C93700	B505

Chemical Composition in %, (EN 1982:2017, Castings)

Cu

Sn

Pb

Zn

Ni

Al

Fe

Mn

P

S

Si

Sb

Min

78.0

9.0

8.0

–

–

–

–

–

–

–

–

–

Max

82.0

11.0

11.0

2.0

2.0

0.01

0.25

0.2

0.10

0.10

0.01

0.5

Chemical Composition in %, (EN 1982:2017, Ingots)

Cu

Sn

Pb

Zn

Ni

Al

Fe

Mn

P

S

Si

Sb

Min

78.0

9.0

8.0

–

–

–

–

–

–

–

–

–

Max

81.5

11.0

10.5

2.0

2.0

0.01

0.20

0.2

0.10

0.08

0.01

0.5

Mechanical Properties

Rm	Tensile strength min.	220 N/mm2
Rp0.2	Proof Strength min.	110 N/mm2
A(50mm)	Elongation min.	8%
HB	Brinell hardness min.	70 HBW

Properties:

Most commonly used bearing alloy, found in bearings operating at moderate loads and moderate-ta-high speeds, as in electric motors and appliances.

• material for plain bearings in mechanical engineering with medium loads;
• very good emergency running;
• high wear resistance;

Application:

• bearings of cranes and elevators;
• minor machine tool bearings;
• bearing for packing machines and electric motors;
• general bearing in mechanical engineering;
• valve and gate seat rings;
• guide bushes in hydraulic cylinders;
• slip rings.