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Steel E27S

Designation

Name The value
Designation GOST Cyrillic E27S
Designation GOST Latin E27S
Transliteration E27S
The chemical elements E27S

Description

Steel E27S used: for the production of plate, universal broadband, bandpass and shaped rolled, intended for the manufacture of shells and other welded structures of ships and floating structures.

Note

High-strength steel.

Standards

Name Code Standards
Sheets and stripes В23 GOST 5521-93

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu N As Al
GOST 5521-93 ≤0.18 ≤0.04 ≤0.04 0.6-1.4 ≤0.3 0.15-0.35 ≤0.4 The rest ≤0.35 ≤0.008 ≤0.08 0.015-0.06
Fe is the basis.
According to GOST 5521-93, the mass fraction of nitrogen is allowed up to 0.012%, provided that KCU ≥ 294 kJ / m 2 is provided in the rolled product after mechanical aging at 20 ° C. It is allowed in place of aluminum soluble in acids, to determine its total mass fraction, while the rate increases by 0.005%. Partial replacement of aluminum with titanium is allowed: the total mass fraction of aluminum and titanium should be at least 0.015%, the mass fraction of titanium - not more than 0.020%, the mass fraction of aluminum soluble in acids - not less than 0.005%. The microalloying of niobium and (or) vanadium steel to 0.05 and 0.10%, respectively, or other grain refining admixtures is permitted in agreement with the consumer.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, %
Castings according to GOST 2685-75
≥265 400-510 ≥22

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

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