EN-GJL-300

Cast type

Cast iron with lamellar graphite

Material No.

EN-JL-1050

US standard (AISI)

No. 30 B

DIN EN 10027-2

5.1302

Abbreviation

EN-GJL-300  

Old designation 

GG-30
DIN 1561

Composition
[%]

C: 2.95 – 3.20
Si: 2.10 – 2.40
Mn: 0.55 – 0.75
P: 0.10 – 0.20
S: 0.04 – 0.07

Density [g/cm³]

7.25

R0.2 N/mm²
Yield strength

 - 

0.1% Elongation limit
Rp0.1 N/mm²

195 – 260

Tensile strength
Rm [N/mm²]

300 – 400

Brinell hardness  HB30
Sample <30 mm

200 – 240

Elongation after fracture  A%

0.8 – 0.3

Elastic modulus    E   kN/mm²

200 – 275

Compressive strength   Sdb  N/mm²

960

Workability

Very good 

Weldability

 Limited, can be welded with special electrodes

Compressive strength

Good

Emergency-running properties

Good

Thermal conductivity

Good

Vibration-absorbing properties

Good

Castability

Very good

Other properties

Structure

Pearlitic

Main uses

Bearing shells, turbine housing, turbines, presses, tools
Recommended wall thicknesses:
>30 mm, presses, tables, impellers, tools, tombstones, mounting brackets