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Steel D

Designation

Name The value
Designation GOST Cyrillic Д
Designation GOST Latin D
Transliteration D
The chemical elements Cu

Description

The steel D is used: for the production of billets of circular cross-section of steel treated liquid synthetic slag in the ladle and is intended for the production of seamless pipes gorjachedeformirovannye.

Standards

Name Code Standards
Bulls. Blanks. Slabs В31 TU 14-1-3500-82

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % kJ/m2, кДж/м2
Tubular billet on the other 14-1-3500-82. Normalization
25 ≥373 ≥638 ≥19 ≥590

Description mechanical marks

Name Description
Section Section
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σB Limit short-term strength
d5 Elongation after rupture
kJ/m2 Toughness

Technological properties

Name The value
Macrostructure and contamination The macrostructure of billets on the other 14-1-3500-82 shall conform to the requirements of OST 14-21-77. Contamination of metal non-metallic inclusions shall not exceed the maximum score: - sulphides (S) - 3.5 points; - on oxides and silicates (FROM, OS, SP, SH) - 4.0 points.

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