Characteristics of steel grade S345

Steel grade S345 is a low-carbon low-alloy manganese steel of increased strength that meets the requirements of DSTU 8539 and GOST 27772 standards.

Classification: steel for building structures.

Products: hot-rolled steel, wide-strip universal, shaped steel, roll-formed sections.  

 

Chemical composition of steel S345 by ladle sample analysis according to GOST 27772, %  

C Si Mn Ni S P Cr N Cu Al Ti
≤0,15 ≤0,80 1,30 - 1,70 ≤0,30 ≤0,025 ≤0,030 ≤0,30 ≤0,012 ≤0,30 0,015-0,06 ≤ 0,035

 

Mechanical properties of sheet and wide-strip rolled steel S345

Thickness, mm Tensile strength, N/mm2 (min) Yield strength, N/mm2 (min) Elongation δ5, %
2 - 3.9 490 345 21
4 - 10 490 345 21
10 - 20 470 325 21
20 - 40 460 305 21
40 - 60 450 285 21
60 - 80 440 275 21
80 - 160 430 265 21

 

Analogues of steel S345

USA Gr.50 type1-4
Japan SM490
European Union S355J2, S355JR, S355J0
China 16Mn
Sweden 2132

 

Application

Steel grade S345 is used in the manufacture of rolled products intended for building steel structures with welded and other connections.

 

Welding

Steel S345 can be welded without restrictions.

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