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Steel S285

C375 steel C590K steel C590 steel C440D steel C440 steel C390K steel C390D steel C390 steel C375D steel C345K steel C345D steel C345 steel C285 steel C275 steel C255 steel C245 steel C235 steel

Designation

Name The value
Designation GOST Cyrillic С285
Designation GOST Latin C285
Transliteration S285
The chemical elements -

Description

S285 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
GOST 27772-88 ≤0.22 ≤0.05 ≤0.04 ≤0.65 ≤0.3 0.15-0.3 ≤0.3 The rest ≤0.3 ≤0.008 ≤0.08
Fe is the basis.
According to GOST 27772-88 for steel smelted in electric furnaces, the content of N ≤ 0.012% is allowed. In steel, an increase in the mass fraction of manganese to 0.085% is permissible. It is allowed to change the chemical composition at the manufacturer's choice: the Mn content is 0.80-1.10%, while the Si content is 0.05-0.15%; the C content ≤ 0.20% and Mn = 0.80-1.10, with a Si content of 0.15-0.30%. Mass fraction of residual (acid-soluble) aluminum in C285 steel with a manganese content up to 0.85% and silicon 0.15-0.30%, intended for sheet and broadband universal rolled products, should be at least 0.020%.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % kJ/m2, кДж/м2
Plates and bars and universal broadband rental in the state of delivery (KCU-20 °C or after mechanical aging)
10-20 ≥265 ≥380 ≥23 ≥294
2-3.9 ≥285 ≥390 ≥17 -
4-10 ≥275 ≥390 ≥24 ≥294
Structural steel in delivery condition (KCU-20 °C or after mechanical aging)
10-20 ≥275 ≥390 ≥23 ≥294
4-10 ≥285 ≥400 ≥24 ≥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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