TYPE

BRONZE 
MARK

STANDARD

PHYSICAL FEATURES OF ALUMINUM

PROPERTIES AND AREA OF USE

TENSILE
(kp/mm2)

STRETCHING
(%)

HARDNESS
(HB)

TINNED
PHOSPHOR
BRONZES

RB/1

DIN 1705
G. Cu Sn 10

25/28

15/20

60/75

It is a material with high stretching resistant to sea water and corrosion. Under heavy load and at bearings and bushings with low speed, at gears which operates in pumps and turbine wheels and requiring high strength.

RB/2

DIN 1705
G. Cu Sn 12

24/28

8/15

80/95

It is a hard material with resistant to sea water and wearing. At the production of bearings, cradles with heavy load resistance, cranks and connection rod bushings, screw and endless screw with pressure resistance.

RB/3

DIN 1705
G. Cu Sn 14

20/25

3/5

85/115

It is a material with high hardness resistant to sea water. At segment, bearings, and journal bearings, plates and cradles resistant to load. 

RED
BRONZES

RB/4

DIN 1705
Rg-5

20/24

12/18

60/70

It is a moderately soft material resistant to sea water and to which hard solder can be applied. At production of steam armatures up to 225 °C, pump bodies, coupling and brackets, journal bearings. 

RB/5

DIN 1705
Rg-7

22/26

12/18

60/75

It is a moderately hard material resistant to sea water and wearing. At the production of journal bearings operating under normal and heavy conditions, plain bearings, piston pin bushes carrying load, load carrier crank and eccentric bearings, cylinder bushing, sliding plate and cradles.

RB/6

DIN 1705
Rg-10

25/28

12/15

60/80

It is a hard material resistant to sea water. At the production pump bodies, valve, segments, bearings, plates and cradles operating under heavy load and pump wheels.

TIN
LEAD
NICKEL
BRONZES

RB/7

DIN 1716
G Cu Pb 20 Sn

15/20

6/10

45/55

It is a soft material with very good sliding capability, resistance to acid, suitable for bad lubricating and which performs well with lubricating with water. At bearings with low speed and high surface pressure, water pumps, armatures resistant to corrosion, engine connection rods and cold rolled bearings.

RB/8

DIN 1716
G Cu Pb 15 Sn

16/22

8/12

60/70

It features soft and high sliding ability, and is resistant to sulphuric acid. It is a material operating with lubricating with water in case of running out of oil. At parts operating under heavy load and in general maintenance bearings resistant to normal pressure, pumps, wheels and bodies resistant to acid.

RB/9

DIN 1716
G Cu Pb 10 Sn

18/23

10/14

65/75

It is a moderately hard material with high resistance to sliding, wearing and corrosion. At bearings operating under heavy pressure, hot and cold rolled bearings, turning lathe bearings, bearings in contact with water with sulphite. 

RB/10

DIN 1716
G Cu Pb 5 Sn

20/24

14/18

70/85

It is a moderately hard material featuring good sliding capability, resistant to wearing, sulphuric acid, chloric acid and oil acids. At armatures, connection rods bearings, hot rolled bearings and bearings operating under high surface pressure.

ALUMINUM
BRONZES

RB/11

DIN 1714
G Cu Al 9

35/45

15/25

80/110

It is a material resistant to sea water and wearing. At casting parts and armatures used in chemical and food industry. 

RB/12

DIN 1714
G Cu Al 10 Fe

50/55

13/20

115/135

It is a material resistant to sea water, acid and wearing. At shipbuilding, chemistry and food industry, high-resistant acid-resistant armatures, endless screws, bearings and bushes.

RB/13

DIN 1714
G Cu Al 9 Ni

50/60

15/25

120/150

It is a weldable material resistant to sea water, non-oxidizing acids, salt and caustics. At bodies and wings of wheels, and at the production of al kinds of armatures and construction parts used in food industry. 

RB/14

DIN 1714
G Cu Al 10 Ni

60/65

10/18

140/170

It is a material highly resistant to sea water, acid, corrosion, cavitation and erosion. At mining machinery and ship building, production of casting parts, gears, conical gears, endless screws, sliding cradles, wearing parts, ship wheels and nuts. 

RB/15

DIN 1714
G Cu Al 11 Ni

68/75

5/8

170/190

It is a hard material resistant to sea water, acid and wearing. At journal bearings resistant to impacts, tappets and level bearings resistant to loads, inner parts of pressure armatures of hydraulic systems.

RB/16

DIN 1714
G Cu Al 8 Mn

45/52

20/26

105/120

It is a material resistant to sea water, corrosion and erosion with low conductivity and poor permeability. Due to its feature, at ship building, production of chemical and oil industry machinery, ship wheels, armatures, turbine wings and gears.

MANGAN
BRONZES

RB/17

DIN 1709
G Cu 55 Zn Mn

30/35

15/25

75/85

It is a soft material suitable for hard solder. At armatures requiring high water and air pressure, at production of pump bodies. 

RB/18

DIN 1709
G Cu 55 Zn Al 1

45/55

20/25

105/130

It is highly hard material with elasticity. It is used at the production of journal bearings, ship propellers, rolling stand, screw press and press nut. 

RB/19

DIN 1709
G Cu 55 Zn Al 2

60/65

15/20

140/160

It is a hard material with high resistance. At valve and smoke parts, gear production, bushing and bearing castings.

RB/20

DIN 1709
G Cu 55 Zn Al 4

75/80

6/10

190/220

It is a quite hard material resistant to sea water. At the production of bearings working with low speed and under heavy load, endless screw and gears.