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Steel S390K

Designation

Name The value
Designation GOST Cyrillic С390К
Designation GOST Latin C390K
Transliteration S390K
The chemical elements -

Description

S390K steel is used: for the manufacture of hot-rolled structural shapes (angles, I-beams, channels), sheet, universal broadband rental and roll-formed profiles designed for construction of steel structures with welded and other connections.

Standards

Name Code Standards
Classification, nomenclature and general norms В20 GOST 27772-88

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu N As V
GOST 27772-88 ≤0.18 ≤0.04 ≤0.035 1.2-1.6 ≤0.3 ≤0.17 ≤0.3 The rest 0.2-0.4 0.015-0.025 ≤0.08 0.08-0.15
Fe is the basis.
In accordance with GOST 27772-88 at the request of the consumer in steel, the mass fraction of phosphorus should not be more than 0.030%, and sulfur - not more than 0.035%.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % kJ/m2, кДж/м2
Plates and wide universal rental in the state of delivery (KCU-70 °C)
4-30 ≥390 ≥540 ≥19 ≥294

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
Weldability without restrictions

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