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Alloy Alloy 273

Designation

Name The value
Designation GOST Cyrillic 273
Designation GOST Latin 273
Transliteration 273
The chemical elements 273

Description

Alloy Alloy 273 is used: for the manufacture of bars drawn (7−35 mm), and extruded (36−245 mm); pipes; parts shipbuilding, working in aggressive environments.

Standards

Name Code Standards
Non-ferrous metals, including rare metals, and their alloys В51 GOST 28873-90
Bars В55 TU 48-21-583-77, TU 48-21-583-зкс-2008
Pipes from non-ferrous metals and alloys В64 TU 48-21-591-77

Chemical composition

Standard Si Ni Fe Cu Ti Zr
TU 48-21-583-77 ≤0.05 17.2-19 ≤0.05 The rest 0.5-0.7 0.1-0.23
Cu is the basis.
According to TU 48-21-583-77 the chemical composition of alloy 273 is given. The content of undetectable impurities should not exceed 0.080% in total. The silicon content is guaranteed by the manufacturer.

Mechanical characteristics

Section, mm σB, MPa d5, %
Bars in ruins, and delivery on the other 48-21-583-77
36-67 ≥422 ≥15
70-145 ≥392 ≥15
20-35 ≥490 ≥8
7-19 ≥540 ≥5

Description mechanical marks

Name Description
Section Section
σB Limit short-term strength
d5 Elongation after rupture

Technological properties

Name The value
Macrostructure and contamination At the bend in the bars should not be of non-metallic inclusions, delaminations, voids and utain visible to the naked eye.

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