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Steel 03Х20Ю3НТБ (KO-4)

Designation

Name The value
Designation GOST Cyrillic 03Х20Ю3НТБ
Designation GOST Latin 03X20Ju3HTB
Transliteration 03H20Yu3NTB
The chemical elements 03Cr20Al3НTiNb
Name The value
Designation GOST Cyrillic КО-4
Designation GOST Latin KO-4
Transliteration KO-4
The chemical elements CoО-4

Description

03Х20Ю3НТБ steel is used: for the manufacture of lightly parts, boilers, nozzles, burners, screens, operating at temperatures up to +1100−1150 °C.

Note

Analogue steel 15KH25T, but with improved weldability.

Standards

Name Code Standards
Sheets and stripes В33 TU 14-1-4645-89

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