Steel S275

Designation

Name The value
Designation GOST Cyrillic С275
Designation GOST Latin C275
Transliteration S275
By chemical elements -

Description

S275 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 rules 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 0.05-0.15 ≤0.3 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.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % KCU, kJ/m2
Plates and wide universal rental in the state of delivery (KCU after ageing mechanical)
10-20 ≥265 ≥370 ≥23 ≥294
2-3.9 ≥275 ≥380 ≥18 -
4-10 ≥275 ≥380 ≥24 ≥294
Structural steel in delivery condition (KCU after ageing mechanical)
10-20 ≥275 ≥380 ≥23 ≥294
4-10 ≥275 ≥390 ≥24 ≥294

Description mechanical marks

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

Technological properties

Name The value
Weldability without restrictions