|
201
|
202
|
304
|
316
|
С31803
|
С32750
|
|
К
|
≤0.15
|
≤0.15
|
≤0.08
|
≤0.08
|
≤0.030
|
≤0.030
|
|
Си
|
≤1.00
|
≤1.00
|
≤1.00
|
≤1.00
|
≤1.00
|
≤0.80
|
|
Мн
|
3.5-7.5
|
7.5-10.0
|
≤2.00
|
≤2.00
|
≤2.00
|
≤1.20
|
|
П
|
≤0.060
|
≤0.060
|
≤0.045
|
≤0.045
|
≤0.030
|
≤0.035
|
|
С
|
≤0.030
|
≤0.030
|
≤0.030
|
≤0.030
|
≤0.020
|
≤0.020
|
|
Кр
|
16-18
|
17-19
|
18-20
|
16-18
|
21-23
|
21-23
|
|
Ни
|
3.5-5.5
|
4.0-6.0
|
8.0-10.5
|
16.0-18.5
|
4.5-6.5
|
6.0-8.0
|
|
Мо
|
|
|
|
2.0-3.0
|
2.5-3.5
|
3.0-5.0
|
|
Н
|
≤0.25
|
≤0.25
|
|
|
0.08-0.2
|
0.24-0.32
|
|
Ку
|
|
|
|
|
|
≤0.50
|
|
Прочность на растяжение (МПа)
|
≥655
|
≥620
|
≥515
|
≥515
|
≥620
|
≥800
|
|
Прочность выхода (МПа)
|
≥260
|
≥310
|
≥205
|
≥205
|
≥450
|
≥550
|
|
Удлиненность (%)
|
≥35
|
≥35
|
≥35
|
≥35
|
≥25
|
≥15
|
|
Твердость (ХВ)
|
≤230
|
≤230
|
≤200
|
≤200
|
≤303
|
≤323
|
Фото продукта: