18ХГТ / 18HGT

Apvalus strypai
nuo Ø20mm iki Ø450mm

 

Description:

Carburizing steel

 

Application:

for loaded parts with high core strength: gear wheels, shafts

 

Chemical composition [%]

C Mn Si P S Cr Ni Mo W V Co Cu
0,17-0,23 0,8-1,1 0,17-0,37 max 0,35 max 0,35 1-1,3 max 0,3 - max 0,2 max 0,05 - max 0,3

 

Equivalents

PN W. nr EN AISI Russia (GOST) Other
18HGT - - - 18ChGT -

 

Processes

welding YES
forging YES
rolling YES
nitriding YES
hardening YES temp. 850 – 880 [°C]
tempering YES temp. 150 – 200 [°C]

 

Hardness

after softening 215 HB
Rm 980 MPa
Re 830 MPa