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ГОСТ В23 ГОСТ 5521-93

C S P Mn Cr Si Ni Fe Cu N As Al
ГОСТ 5521-93 ≤0.12 ≤0.035 ≤0.035 0.5-0.8 0.6-0.9 0.8-1.1 0.5-0.8 0.4-0.6 ≤0.008 ≤0.08 0.015-0.06

Сечение, мм sТ|s0,2, МПа σB, МПа d5, %
≥390 530-690 ≥19

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