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Characteristics of steel grade 20kp

Steel grade 20kp is high-quality structural carbon steel, the chemical composition of which meets the requirements of DSTU 7809 and GOST 1050.

Classification: Quality structural carbon steel.

Products: Steel plates, sheets and coils, semi-finished products, rolled sections including shapes.


Chemical composition of steel grade 20kp (ladle analysis) according to GOST 7809, %

С Si Mn S P Cr Ni As Cu
0,17 - 0,24     ≤0,07 0,25 - 0,50 ≤0,040 ≤ 0,035 ≤ 0,25 ≤ 0,30 ≤ 0,08 ≤ 0,20


Mechanical properties of 20kp steel sheet products according to DSTU 7808/GOST 4041

Tensile strength, N/mm2 Elongation δ5, %, min Elongation δ10, %, min Hardness HB, no more
340-490 28 24 127



USA 1020, 1023, G10200, G10230, M1020, M1023
Germany Cq22
European Union C20E2C



Steel 20kp after cyanidation or carburizing is used in the manufacture of products with high surface hardness and low core strength – fastenings, axles, sprockets, pins; after normalization or without heat treatment, the steel is used in the production of parts operated in the temperature range from -20 to +425°C – fittings, connecting pieces, bolts, shafts, housings, flanges.



No restrictions (except for parts after chemical heat treatment). Welding methods: manual arc welding, automatic submerged arc welding and gas shielded welding, resistance spot welding.  

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