Steel R9K5

Designation

Name The value
Designation GOST Cyrillic Р9К5
Designation GOST Latin P9K5
Transliteration R9K5
By chemical elements -

Description

R9K5 steel is used: for the manufacture of tools used when machining high strength, stainless and heat resistant steels and alloys, steels high hardness.

Note

The steel has a reduced tendency to overheat during hardening.

Standards

Name Code Standards
Bars and shapes В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006
Sheets and strips В33 GOST 4405-75
Bars and shapes В32 GOST 7417-75, GOST 14955-77, GOST 19265-73
Steel wire medium and high carbon В72 TU 14-1-2783-79

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu V Mo W Co
GOST 19265-73 0.9-1 ≤0.03 ≤0.03 0.2-0.5 3.8-4.4 0.2-0.5 ≤0.6 Rest ≤0.25 2.3-2.7 ≤1 9-10 5-6
Fe is the basis.

Technological properties

Name The value
Sanding behaviour Reduced
Viscosity reduced
Wear resistance increased