Characteristics of steel grade 17G1S-U

Steel 17G1S-U is a structural low alloy higher strength steel that is used for general purpose structures intended for welding, bolting and riveting. Chemical composition of the steel meets the requirements of GOST 1928.

Classification: Structural low alloy steel.

Products: Semi-finished products, forgings, stamped parts, thin-gauge rolled steel and other products.


Chemical composition of steel grade 17G1S-U (heat analysis) according to GOST 19281, %

С Si Mn Ni S P Cr Cu V
0.15-0.20 0.40-0.60            1.15-1.55            ≤ 0.30           ≤0.035            ≤0.030 ≤0.30           ≤0.30 ≤0.012           


Mechanical properties of steel 17G1S-U at Т=20ºС

Product range Tensile strength, MPa Yield strength, MPa Elongation, %
Steel plate/sheet, ТU 14-1-1950-2004                  510-650          365-490          22-23


Equivalents of steel grade 17G1S-U

Japan SM490A, SM490B, SM490C, SM490YA, SM490YB, SM50A, SM520B, SM520C, STK490, STKM16C, STKR490
Canada 350W, 350WT
European Union 1.0117, Fe52CFN, Fe52DFN, S335J0, S355J2G3
China 16Mn, 16MnDR, 16Mng, 16MnL, 16MnR, HP345
South Korea STKM16C



Steel grade 17G1S-U is used to make welded steel structures, tubes and connecting elements of main pipelines including flanges, tees, pipe elbows, fittings, etc.



No welding restrictions.  

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