Steel 95Х6М3Ф3СТ (ЭК80)

Designation

Name The value
Designation GOST Cyrillic 95Х6М3Ф3СТ
Designation GOST Latin 95X6M3F3CT
Transliteration 95H6M3F3ST
By chemical elements 95Cr6Mo3V3СTi
Name The value
Designation GOST Cyrillic ЭК80
Designation GOST Latin EK80
Transliteration EhK80
By chemical elements -

Description

95Х6М3Ф3СТ steel is used: for the manufacture of heavily loaded cold heading punches; cutting tool (as a substitute of high-speed steel); knives cutting liquid glass; stamping equipment; heat resistant wear-resistant products for various purposes.

Note

The high-strength heat-resistant steel.

Standards

Name Code Standards
Blanks. Of the workpiece. Slabs В31 TU 14-1-4458-88
Bars and shapes В32 TU 14-1-5079-91

Chemical composition

Standard C S P Mn Cr Si Ni Fe V Ti Mo
TU 14-1-5079-91 0.92-1 ≤0.03 ≤0.03 ≤0.7 5-6 0.4-0.9 ≤0.5 Rest 2.4-2.8 0.22-0.35 2.8-3.4
Fe is the basis.
According to TU 14-1-5079-91 the chemical composition is given for steel grade 95Х6М3Ф3СТ (ЭК80). In the finished rolled steel, deviations in chemical composition are allowed: by carbon ± 0,020%, by silicon ± 0,050%, by chromium ± 0,10, by molybdenum ± 0,10%, by titanium + 0,050 / -0,020% in open smelting metal and - 0.10% in titanium in the metal of electroslag remelting. As a technological additive, it is allowed to introduce into the steel REM and calcium by calculation up to 0.040% of each. The content of REM and calcium by chemical analysis is not determined. The residual content in steel is allowed up to 0.60% tungsten. As agreed with the consumer, steel can be manufactured with a carbon content of 0.90-0.95% and 0.95-1.00%.

Technological properties

Name The value
Microstructure The size of austenite grains after quenching should be no larger than 9 rooms for bars with diameter less than 40 mm and 8 rooms - for bars with diameter over 40 mm. the Value of heterogeneity for carbide rods depending on diameter shall not exceed: ø 8-15 mm - 2 points; ø 16-20 mm - 3 points; ø 21-40 mm - 4 points; ø 41-60 mm - 5 points; 61 to 80 mm ø - 6 points; ø 81-120 mm - 7 points.