Steel 6KHS (ЭИ325)

Designation

Name The value
Designation GOST Cyrillic 6ХС
Designation GOST Latin 6XC
Transliteration 6HS
By chemical elements 6CrС
Name The value
Designation GOST Cyrillic ЭИ325
Designation GOST Latin EI325
Transliteration EhI325
By chemical elements -

Description

Steel 6KHS used: for the production of pneumatic chisels and stamps of small size for cold forming; chipper knives.

Standards

Name Code Standards
Bars and shapes В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006
Sheets and strips В33 GOST 4405-75, TU 14-131-971-2001
Bars and shapes В32 GOST 5210-95, GOST 5950-2000, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, TU 14-11-245-88
Blanks. Of the workpiece. Slabs В31 OST 24.952.01-89

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu V Ti Mo W
GOST 5950-2000 0.6-0.7 ≤0.03 ≤0.03 0.15-0.45 1-1.3 0.6-1 ≤0.4 Rest ≤0.3 ≤0.15 ≤0.03 ≤0.2 ≤0.2
Fe is the basis.

Mechanical properties

Section, mm t отпуска, °C sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2 HB, MPa HRC
Rolled steel. Quenching in oil at 880 °C + Vacation at 500 °C (exposure 2 hours)
- ≥1250 ≥1400 ≥8 ≥30 ≥390 - -
Rolled steel. Quenching in oil at 880 °C to + Leave (the shutter speed when the vacation 2 h)
- 200 ≥2060 - ≥2 - - - ≥59
Rolled steel. Quenching in oil at 880 °C to + Vacation at 600-620 °C
- - - ≥760 ≥11 ≥45 - ≥249 -
Rolled steel. Quenching in oil at 880 °C to + Leave (the shutter speed when the vacation 2 h)
- 300 ≥1910 ≥2080 ≥3 ≥20 ≥24 - ≥56
Rolled steel. Quenching in oil at 880 °C to + Vacation at 600-620 °C
- - - ≥800 ≥13 ≥46 - ≥240 -
Rolled steel. Quenching in oil at 880 °C to + Leave (the shutter speed when the vacation 2 h)
- 400 ≥1760 ≥1910 ≥4 ≥25 ≥20 - ≥52
Rolled steel. Quenching in oil at 880 °C to + Vacation at 600-620 °C
- - - ≥800 ≥13 ≥46 - ≥230 -
Rolled steel. Quenching in oil at 880 °C to + Leave (the shutter speed when the vacation 2 h)
- 500 ≥1250 ≥1400 ≥8 ≥30 ≥39 - ≥45
Rolled steel. Quenching in oil at 880 °C to + Vacation at 600-620 °C
- - - ≥660 ≥16 ≥47 - ≥190 -
Rolled steel. Quenching in oil at 880 °C to + Leave (the shutter speed when the vacation 2 h)
- 600 ≥980 ≥1070 ≥20 - ≥46 - -
Rolled steel. Quenching in oil at 880 °C to + Vacation at 600-620 °C
- - - ≥500 ≥18 ≥48 - ≥150 -
- - - ≥330 ≥19 ≥62 - ≥130 -
- - - ≥225 ≥22 ≥71 - ≥100 -

Description mechanical marks

Name Description
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU Limit short-term strength
d5 Elongation after rupture
y The relative narrowing
KCU Toughness
HB Brinell hardness number
HRC Rockwell hardness (indenter diamond spheroconical)

Technological properties

Name The value
The temperature of forging Beginning - 1170 °C, the end - 850 °C. the Cooling in a lined pit or under a layer of sand.