Unalloyed Structural Steels

Unalloyed structural steels are generally products that differ from other steel products used in construction and construction areas by75-80% in every field and are easy to find. Non-alloy structural steels are used in infrastructure investments, housing investments and in the development and working level of the construction sector in general according to the situation of the country's economies. In this context, structural steels, which have the most significant share among the steels produced all over the world, hold the most important place. Structural steels products, which are advantageous in terms of price and usability compared to other steel products, constitute 75-80% in every field compared to other steels in terms of availability in the market.

What are unalloyed structural steels? These structural steels are generally used in construction and construction areas, differ from other steels by75-80% in every field and are easy to find. Structural steels have a wide range of uses in the manufacturing and building industry as low-carbon, unalloyed rolling and normalization rolling plates. They are produced and put into use with their yield and tensile strengths and low temperature toughness properties.

Difference Between Structural Steels

  • Unalloyed Structural Steels
  • Other Structural Steels

General Properties of Unalloyed Structural Steels

  • Suitable yield limit and tensile strength
  • Suitable impact strength
  • Resistance to brittle fractures
  • Good weldability
  • Good formability
  • Good processability

General Structural Steels and Compositions

TYPE TRANSACTION G MNmax Pmax Smax Nmax Almax
1.0035 St 33  S185 U,N
1.0037 St 37-2 S235JR U,N 0.17max 1.40max 0.045 0.045 0.009
1.0036 USt 37-2 S235JRG1 A570Gr.33,36 K U,N 0.17max 1.40max 0.045 0.045 0.007
1.0038 RSt 37-2  S235JRG2 A570Gr.36 S U,N 0.17max 1.40max 0.045 0.045 0.009
1.0116 St 37-3 S235J2G3 A284Gr.D SS U,N 0.17max 1.40max 0.035 0.035 0.020
1.0044 St 44-2 S275JR A570Gr.40 S U,N 0.21max 1.50max 0.045 0.045 0.009
1.0144 St 44-3 S275J0 A573Gr.70 SS U,N 0.20max 1.50max 0.040 0.040 0.009 0.020
1.0570 St 52-3 S355J0 SS U,N 0.20max 1.60max 0.040 0.040 0.009 0.020
1.0050 St 50-2  E295 A570Gr.50 S U,N 0.30ort 0.045 0.045 0.009
1.0060 St 60-2 E335 S U,N 0.40ort 0.045 0.045 0.009
1.0070 St 70-2 E360 S U,N 0.50ort 0.045 0.045 0.009
K – Boiling Casting S – Calm Casting SS – Semi-Calm Casting
U – Hot Rolled, Other Untreated N – Normal Annealed