03. МАРКА И ХИМИЧЕСКИЙ СОСТАВ СРЕДНЕ- И ВЫСОКОУГЛЕРОДИСТЫХ СТАЛЕЙ
Таблица 2
ГОСТ |
Марка стали |
МАССОВАЯ ДОЛЯ ЭЛЕМЕНТОВ, % | |||||||
углерод |
марганец |
кремнии |
фосфор |
сера |
хром |
никель |
медь | ||
не более | |||||||||
ГОСТ 1050-88 |
2кп |
0.09-0.15 |
0.25-0.50 |
не более |
0.04 |
0.05 |
0.30 |
0.30 |
0.30 |
3кп |
0.14-0.22 |
0.30-0.60 |
0.05 |
" |
" |
" |
" |
" | |
3сп |
0.14-0.22 |
0.40-0.60 |
0.15-0.30 |
" |
" |
" |
" |
" | |
3пс |
0.14-0.22 |
0.40-0.65 |
0.05-0.15 |
" |
" |
" |
" |
" | |
08кп |
0.05-0.11 |
0.25-0.50 |
не более 0.03 |
0.035 |
0.40 |
0.10 |
0.25 |
0.25 | |
35 |
0.32-0.40 |
0.40-0.70 |
0.45 |
0.030 |
0.030 |
0.10 |
0.10 |
0.15 | |
45 |
0.42-0.50 |
" |
" |
" |
" |
" |
" |
" | |
50 |
0.47-0.55 |
" |
" |
" |
" |
" |
" |
" | |
55 |
0.52-0.60 |
" |
" |
" |
" |
" |
" |
" | |
10кп |
0.07-0.14 |
" |
007 |
" |
" |
0.15 |
" |
" | |
20 |
0.17-0.24 |
0.35-0.65 |
0.17-0.37 |
" |
" |
0.25 |
" |
" | |
ТУ 14-1-5317-95 |
35 |
0.32-0.40 |
0.40-0.70 |
0.45 |
0.030 |
0.030 |
0.10 |
0.10 |
0.15 |
40 |
0.37-0.45 |
" |
" |
" |
" |
" |
" |
" | |
45 |
0.42-0.50 |
" |
" |
" |
" |
" |
" |
" | |
50 |
0.47-0.55 |
" |
" |
" |
" |
" |
" |
" | |
55 |
0.52-0.60 |
" |
" |
" |
" |
" |
" |
" | |
60 |
0.57-0.65 |
" |
" |
" |
" |
" |
" |
" | |
65 |
0.62-0.70 |
" |
" |
" |
" |
" |
" |
" | |
65 |
0.62-0.70 |
" |
" |
" |
" |
" |
" |
" | |
70 |
0.67-0.75 |
" |
" |
" |
" |
" |
" |
" | |
75 |
0.72-0.80 |
" |
" |
" |
" |
" |
" |
" | |
80 |
0.77-0.85 |
" |
" |
" |
" |
" |
" |
" | |
85 |
0.82-0.90 |
" |
" |
" |
" |
" |
" |
" | |
ГОСТ 1435-74 |
У7А |
0.65-0.74 |
0.17-0.28 |
0.17-0.33 |
0.025 |
0.018 |
0.20-0.4 |
0.25 |
0.20 |
У8А |
0.75-0.84 |
" |
" |
" |
" |
" |
" |
" | |
У9А |
0.85-0.94 |
" |
" |
" |
" |
" |
" |
" | |
У10А |
0.95-1.04 |
" |
" |
" |
" |
" |
" |
" | |
ГОСТ 14959-79 |
65Г |
0.62-0.70 |
0.7-1.0 |
0.17-0.37 |
0.035 |
0.035 |
0.15 |
0.15 |
" |
ГОСТ 2246-70 |
Св08Г2С |
0.05-0.11 |
1.8-2.10 |
0.70-0.95 |
0.030 |
0.025 |
0.20 |
0.25 |
" |
ГОСТ 10543-82 |
30ХГСА |
0.27-0.35 |
0.80-1.1 |
0.9-1.20 |
0.025 |
0.025 |
0.80-1.1 |
0.40 |
" |