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Alloy OT4-2

Designation

Name The value
Designation GOST Cyrillic ОТ4-2
Designation GOST Latin OT4-2
Transliteration OT4-2
The chemical elements SnTe4-2

Description

Alloy OT4−2 is used: for the manufacture of parts and power elements of the constructions made by welding and working for a long time at temperatures up to +400 °C.

Note

High-strength titanium alloy, not hardened by heat treatment. Alloys welded all types of welding and weld strength and ductility approaching that of the base metal.

Standards

Name Code Standards
Non-ferrous metals, including rare metals, and their alloys В51 OST 1 90000-70
Sectional and shaped rolling В52 OST 1 90097-73
Bars В55 OST 1 90107-73

Mechanical characteristics

Section, mm σB, MPa d5, % y, % kJ/m2, кДж/м2 Brinell hardness number, MPa
Forgings weighing up to 200 kg after annealing
101-250 834-1080 ≥7 ≥20 ≥294 255-341
100 932-1080 ≥8 ≥25 ≥294 255-341
Forged square bars and round after annealing
140-250 834-1030 ≥7 ≥20 ≥294 255-341
853-1030 ≥7 ≥22 ≥294 255-341

Description mechanical marks

Name Description
Section Section
σB Limit short-term strength
d5 Elongation after rupture
y The relative narrowing
kJ/m2 Toughness

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