Вы можете открыть актуальную версию документа прямо сейчас.
Если вы являетесь пользователем интернет-версии системы ГАРАНТ, вы можете открыть этот документ прямо сейчас или запросить по Горячей линии в системе.
Вход
- Главная
- Межгосударственный стандарт ГОСТ 4543-71 "Прокат из легированной конструкционной стали. Технические условия" (утв. постановлением Госстандарта СССР от 18 июня 1971 г. N 1148) (утратил силу)
- Приложение 2. Параметры марочных и суженных полос (пределы колебания твердости HRC по длине торцового образца)
Приложение 2. Параметры марочных и суженных полос (пределы колебания твердости HRC по длине торцового образца)
Приложение 2
Параметры марочных и суженных полос
(пределы колебания твердости HRC по длине торцового образца)
----------------------------------------------------------------------------------------------------------------------------------------
Рассто-| Твердость для полос прокаливаемости, HRC
яние от|-------------------------------------------------------------------------------------------------------------------------------
торца, | суженной | марочной | суженной | марочной | суженной | марочной | суженной | марочной
мм | | | | | | | |
|---------------+---------------+---------------+---------------+--------------+---------------+---------------+----------------
| Макс. | Мин. | Макс. | Мин. | Макс. | Мин. | Макс. | Мин. |Макс. | Мин. | Макс. | Мин. | Макс. | Мин. | Макс. | Мин.
|-------------------------------------------------------------------------------------------------------------------------------
| Стали марок
|-------------------------------------------------------------------------------------------------------------------------------
| 15Х | 20Х | 30Х | 35Х
--------+-------------------------------+-------------------------------+------------------------------+--------------------------------
1,5 | 42 | 35,5 | 43 | 34,5 | 46 | 39 | 47,5 | 37,0 | 51,5 | 47,5 | 53,0 | 46,5 | 52,0 | 45,0 | 54,0 | 43
| | | | | | | | | | | | | | | |
3,0 | 41 | 32,5 | 43 | 30 | 43,5 | 34 | 45,0 | 32,0 | 50,0 | 44,0 | 52,0 | 42,5 | 52,0 | 43,0 | 53,0 | 41
| | | | | | | | | | | | | | | |
4,5 | 38 | 25,5 | 41 | 23 | 40 | 29,5 | 42,5 | 27,0 | 48,0 | 40,0 | 50,0 | 38,5 | 50,5 | 41,0 | 52,5 | 39
| | | | | | | | | | | | | | | |
6,0 | 34 | - | 37 | - | 36,5 | 25 | 38,5 | 22,5 | 45,5 | 37,0 | 48,0 | 35,0 | 49,5 | 37,0 | 52,0 | 35
| | | | | | | | | | | | | | | |
7,5 | 28,5 | - | 31 | - | 32,5 | 22 | 34,0 | 20,0 | 43,5 | 33,5 | 45,0 | 32,0 | 47,0 | 33,0 | 50,0 | 30
| | | | | | | | | | | | | | | |
9,0 | 24,5 | - | 27 | - | 29,5 | - | 30,5 | - | 39,5 | 31,0 | 41,0 | 29,0 | 45,0 | 29,0 | 47,0 | 27
| | | | | | | | | | | | | | | |
10,5 | 22 | - | 24 | - | 26,5 | - | 28,0 | - | 36,0 | 28,5 | 37,5 | 26,5 | 42,0 | 28,0 | 44,0 | 26
| | | | | | | | | | | | | | | |
12,0 | 20,5 | - | 22,5 | - | 24,5 | - | 26,5 | - | 33,0 | 26,5 | 34,5 | 24,5 | 39,5 | 25,5 | 42,0 | 23
| | | | | | | | | | | | | | | |
13,5 | - | - | 21 | - | 23 | - | 25,0 | - | 30,5 | 24,5 | 32,0 | 23,0 | 37,0 | 23,0 | 39,0 | 21
| | | | | | | | | | | | | | | |
15,0 | - | - | 20 | - | 22 | - | 24,0 | - | 29,0 | 23,0 | 30,0 | 22,0 | 36,0 | 22,0 | 37,0 | 20
| | | | | | | | | | | | | | | |
16,5 | - | - | - | - | 21,5 | - | 23,5 | - | 27,5 | - | 28,5 | - | 34,0 | 21,0 | 36,0 | 19
| | | | | | | | | | | | | | | |
18,0 | - | - | - | - | 21 | - | 22,5 | - | 26,5 | - | 27,5 | - | 33,0 | 20,0 | 34,5 | 18
| | | | | | | | | | | | | | | |
19,5 | - | - | - | - | 20 | - | 22,0 | - | 26,0 | - | 27,0 | - | | - | - | -
| | | | | | | | | | | | | | | |
21,0 | - | - | - | - | - | - | 21,5 | - | 25,0 | - | 26,5 | - | - | - | - | -
| | | | | | | | | | | | | | | |
24,0 | - | - | - | - | - | - | | - | 24,0 | - | 25,0 | - | - | - | - | -
| | | | | | | | | | | | | | | |
27,0 | - | - | - | - | - | - | - | - | 22,5 | - | 23,5 | - | - | - | - | -
| | | | | | | | | | | | | | | |
30,0 | - | - | - | - | - | - | - | - | 21,0 | - | 22,0 | - | - | - | - | -
| | | | | | | | | | | | | | | |
33,0 | - | - | - | - | - | - | - | - | 19,5 | - | 20,5 | - | - | - | - | -
| | | | | | | | | | | | | | | |
36,0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | -
| | | | | | | | | | | | | | | |
39,0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | -
| | | | | | | | | | | | | | | |
Продолжение
----------------------------------------------------------------------------------------------------------------------------------------
Рассто-| Твердость для полос прокаливаемости, HRC
яние от|-------------------------------------------------------------------------------------------------------------------------------
торца, | суженной | марочной | суженной | марочной | суженной | марочной | суженной | марочной
мм | | | | | | | |
|---------------+---------------+---------------+---------------+--------------+---------------+---------------+----------------
| Макс. | Мин. | Макс. | Мин. | Макс. | Мин. | Макс. | Мин. |Макс. | Мин. | Макс. | Мин. | Макс. | Мин. | Макс. | Мин.
|-------------------------------------------------------------------------------------------------------------------------------
| Стали марок
|-------------------------------------------------------------------------------------------------------------------------------
| 40Х | 45Х | 18ХГТ | 30ХГТ
--------+-------------------------------+-------------------------------+------------------------------+--------------------------------
1,5 | 58,5 | 51 | 59,5 | 49 | 58 | 54 | 59 | 53 | 48 | 41 | 49 | 40 | 50,5 | 43,5 | 52 | 41,5
| | | | | | | | | | | | | | | |
3,0 | 58 | 49,5 | 59 | 48 | 57,5 | 52,5 | 58,5 | 51,5 | 46 | 39,5 | 48 | 38 | 49,5 | 42,5 | 51 | 40,5
| | | | | | | | | | | | | | | |
4,5 | 57 | 47,5 | 58 | 46,5 | 56,5 | 51 | 57,5 | 50 | 45 | 36 | 46 | 35 | 48,5 | 40,5 | 50 | 39
| | | | | | | | | | | | | | | |
6,0 | 55,5 | 45 | 56,5 | 43,5 | 56 | 49,5 | 57 | 48 | 43 | 33 | 44,5 | 31 | 47,5 | 38,5 | 49 | 37
| | | | | | | | | | | | | | | |
7,5 | 53,5 | 40,5 | 56 | 38 | 54,5 | 47,5 | 56 | 46 | 41 | 30 | 43 | 28 | 46,5 | 36,5 | 48 | 35
| | | | | | | | | | | | | | | |
9,0 | 52,5 | 39 | 54 | 38,5 | 53 | 46,5 | 54 | 43,5 | 39,5 | 28 | 41 | 25,5 | 44,5 | 34,5 | 46,5 | 32,5
| | | | | | | | | | | | | | | |
10,5 | 50,5 | 36,5 | 52,5 | 33,5 | 51,5 | 42,5 | 53 | 41 | 38 | 26,5 | 39,5 | 24 | 43 | 32,5 | 44,5 | 30,5
| | | | | | | | | | | | | | | |
12,0 | 48 | 34 | 51 | 31 | 49,5 | 40 | 51,5 | 38 | 36,5 | 25 | 38 | 22,5 | 41,5 | 30,5 | 43 | 28,5
| | | | | | | | | | | | | | | |
13,5 | 46 | 32,5 | 49 | 29,5 | 47,5 | 37,5 | 49,5 | 36 | 35,5 | 24 | 36,5 | 21,5 | 40 | 29 | 41,5 | 27
| | | | | | | | | | | | | | | |
15,0 | 46,5 | 30,5 | 48 | 28 | 46 | 35 | 48 | 33 | 34 | 23 | 36 | 21 | 38 | 28 | 40 | 26
| | | | | | | | | | | | | | | |
16,5 | 42,5 | 29,5 | 44,5 | 26,5 | 44 | 34 | 45,5 | 32,5 | 33 | 8 | 34,5 | - | 37 | 26,5 | 38,5 | 24
| | | | | | | | | | | | | | | |
18,0 | 41 | 28 | 42,5 | 26 | 42 | 32 | 43,5 | 31 | 32 | - | 33,5 | - | 36 | 25 | 37,5 | 23
| | | | | | | | | | | | | | | |
19,5 | 39,5 | 27 | 41 | 25 | 40,5 | 31 | 42 | 29,5 | 31 | - | 33 | - | 35 | 24 | 36,5 | 22
| | | | | | | | | | | | | | | |
21,0 | 38,5 | 26,5 | 39,5 | 24 | 39 | 29,5 | 40,5 | 28,5 | 30,5 | - | 32 | - | 34 | 23 | 36 | 21
| | | | | | | | | | | | | | | |
24,0 | 36,5 | 24,5 | 38 | 22,5 | 36 | 28 | 38 | 26,5 | 29 | - | 31 | - | 32 | - | 34 | -
| | | | | | | | | | | | | | | |
27,0 | 35 | 23 | 36,5 | 21,5 | 35 | 26,5 | 36 | 25 | 27,5 | - | 29,5 | - | 30,5 | - | 32,5 | -
| | | | | | | | | | | | | | | |
30,0 | 34 | 22 | 36 | 20 | 32,5 | 25,5 | 34 | 24 | 26,5 | - | 29 | - | 29,5 | - | 31,5 | -
| | | | | | | | | | | | | | | |
33,0 | - | - | - | - | 32,5 | 24 | 33 | 22,5 | 26 | - | 28 | - | 28,5 | - | 30,5 | -
| | | | | | | | | | | | | | | |
36,0 | - | - | - | - | 31 | 23 | 32,5 | 21,5 | - | - | - | - | - | - | | -
| | | | | | | | | | | | | | | |
39,0 | - | - | - | - | 31 | 21,5 | 32,5 | 20,5 | - | - | - | - | - | - | - | -
| | | | | | | | | | | | | | | |
Продолжение
----------------------------------------------------------------------------------------------------------------------------------------
Рассто-| Твердость для полос прокаливаемости, HRC
яние от|-------------------------------------------------------------------------------------------------------------------------------
торца, | суженной | марочной | суженной | марочной | суженной | марочной | суженной | марочной
мм | | | | | | | |
|---------------+---------------+---------------+---------------+--------------+---------------+---------------+----------------
| Макс. | Мин. | Макс. | Мин. | Макс. | Мин. | Макс. | Мин. |Макс. | Мин. | Макс. | Мин. | Макс. | Мин. | Макс. | Мин.
|-------------------------------------------------------------------------------------------------------------------------------
| Стали марок
|-------------------------------------------------------------------------------------------------------------------------------
| 20ХГР | 27ХГР | 25ХГМ | 30ХМА
--------+-------------------------------+-------------------------------+------------------------------+--------------------------------
1,5 | 44,5 | 37,5 | 46,0 | 36,0 | 50,5 | 45,0 | 51,5 | 44,0 | 50,0 | 44,0 | 51,0 | 43,0 | 52,0 | 49,0 | 53,0 | 48,0
| | | | | | | | | | | | | | | |
3,0 | 44,0 | 37,0 | 45,5 | 35,5 | 50,5 | 45,0 | 51,5 | 44,0 | 49,0 | 42,5 | 50,0 | 41,5 | 51,0 | 47,5 | 52,0 | 46,5
| | | | | | | | | | | | | | | |
4,5 | 43,5 | 36,5 | 45,0 | 35,0 | 50,0 | 44,5 | 51,0 | 43,5 | 48,0 | 41,0 | 49,0 | 40,0 | 50,0 | 46,0 | 51,0 | 44,5
| | | | | | | | | | | | | | | |
6,0 | 43,0 | 33,5 | 44,5 | 33,5 | 50,0 | 44,5 | 51,0 | 43,5 | 47,0 | 39,0 | 48,0 | 38,0 | 48,5 | 43,5 | 49,5 | 42,0
| | | | | | | | | | | | | | | |
7,5 | 42,5 | 33,5 | 44,0 | 32,0 | 49,0 | 43,5 | 50,5 | 42,5 | 46,0 | 37,5 | 47,5 | 36,0 | 47,0 | 40,0 | 48,0 | 39,0
| | | | | | | | | | | | | | | |
9,0 | 41,0 | 32,0 | 43,0 | 30,0 | 48,5 | 43,5 | 50,0 | 42,0 | 45,0 | 36,5 | 46,5 | 35,0 | 45,0 | 37,0 | 46,5 | 35,5
| | | | | | | | | | | | | | | |
10,5 | 40,0 | 30,0 | 42,5 | 27,5 | 48,0 | 43,0 | 49,5 | 41,5 | 44,0 | 35,5 | 45,5 | 34,0 | 43,5 | 34,5 | 45,0 | 33,5
| | | | | | | | | | | | | | | |
12,0 | 39,0 | 27,5 | 41,5 | 25,0 | 47,5 | 41,5 | 49,0 | 40,0 | 43,0 | 34,5 | 45,0 | 33,0 | 41,5 | 33,0 | 43,0 | 31,5
| | | | | | | | | | | | | | | |
13,5 | 37,5 | 25,5 | 40,0 | 23,0 | 47,0 | 40,0 | 48,5 | 38,5 | 42,5 | 33,5 | 44,0 | 32,0 | 39,0 | 31,5 | 40,5 | 30,0
| | | | | | | | | | | | | | | |
15,0 | 37,0 | 24,0 | 39,0 | 22,0 | 46,5 | 39,0 | 48,0 | 37,5 | 42,0 | 33,0 | 43,0 | 30,5 | 36,5 | 29,5 | 38,0 | 28,0
| | | | | | | | | | | | | | | |
16,5 | 35,0 | - | 37,0 | - | 46,0 | 36,5 | 47,5 | 35,0 | 41,0 | 31,5 | 42,5 | 29,5 | 35,5 | 28,5 | 37,0 | 27,0
| | | | | | | | | | | | | | | |
18,0 | 34,0 | - | 36,5 | - | 45,0 | 35,5 | 46,5 | 33,0 | 40,5 | 31,0 | 42,0 | 28,5 | 34,5 | 27,5 | 36,0 | 26,0
| | | | | | | | | | | | | | | |
19,5 | 33,0 | - | 34,0 | - | 44,0 | 34,0 | 46,0 | 32,0 | 39,5 | 30,0 | 41,0 | 27,5 | 33,5 | 26,5 | 35,0 | 25,0
| | | | | | | | | | | | | | | |
21,0 | 31,5 | - | 33,0 | - | 43,0 | 32,0 | 44,5 | 30,0 | 38,5 | 29,0 | 40,5 | 26,5 | 32,5 | 25,5 | 34,0 | 24,5
| | | | | | | | | | | | | | | |
24,0 | 29,5 | - | 31,0 | - | 41,5 | 29,0 | 42,5 | 27,0 | 37,5 | 27,0 | 39,5 | 25,0 | 31,0 | 24,0 | 32,5 | 22,0
| | | | | | | | | | | | | | | |
27,0 | 28,0 | - | 29,5 | - | 40,0 | 26,5 | 41,0 | 25,0 | 36,5 | 26,0 | 38,5 | 24,5 | 30,0 | 22,0 | 32,0 | 20,5
| | | | | | | | | | | | | | | |
30,0 | 26,5 | - | 28,5 | - | 38,0 | 24,0 | 39,0 | 23,0 | 35,5 | 25,0 | 37,5 | 23,5 | 29,0 | - | 31,0 | -
| | | | | | | | | | | | | | | |
33,0 | 25,5 | - | 27,5 | - | 36,0 | 22,5 | 37,5 | 21,5 | 34,5 | 24,0 | 36,0 | 22,5 | 28,0 | - | 30,0 | -
| | | | | | | | | | | | | | | |
36,0 | 25,0 | - | 27,0 | - | 34,0 | 21,5 | 35,0 | 20,0 | 33,5 | 22,5 | 35,0 | 21,0 | - | - | - | -
| | | | | | | | | | | | | | | |
Продолжение
---------------------------------------------------------------------------------------------------------------------------------------
Рассто-| Твердость для полос прокаливаемости, HRC
яние от|------------------------------------------------------------------------------------------------------------------------------
торца, | суженной | марочной | суженной | марочной | суженной | марочной
мм | | | | | |
|--------------------+--------------------+--------------------+--------------------+--------------------+---------------------
| Макс. | Мин. | Макс. | Мин. | Макс. | Мин. | Макс. | Мин. | Макс. | Мин. | Макс. | Мин.
|------------------------------------------------------------------------------------------------------------------------------
| Стали марок
|------------------------------------------------------------------------------------------------------------------------------
| 38ХС | 40ХФА | 12ХН3А
--------+-----------------------------------------+-----------------------------------------+------------------------------------------
1,5 | 55 | 48 | 56 | 46,5 | 58 | 51,5 | 59,5 | 50 | 41 | 38 | 41,5 | 37
| | | | | | | | | | | |
3,0 | 55 | 47,5 | 56 | 45,5 | 57 | 51,5 | 58,5 | 50 | 40,5 | 36,5 | 41,5 | 35,5
| | | | | | | | | | | |
4,5 | 54,5 | 46,5 | 56 | 45 | 56 | 50,5 | 57,5 | 49 | 39,5 | 34,5 | 40,5 | 33
| | | | | | | | | | | |
6,0 | 54 | 45,5 | 55,5 | 44 | 54,5 | 48 | 56,5 | 46,5 | 38,5 | 31 | 39,5 | 29,5
| | | | | | | | | | | |
7,5 | 53,5 | 44,5 | 55 | 43 | 53,5 | 43,5 | 55 | 42 | 36,5 | 25,5 | 39 | 23
| | | | | | | | | | | |
9,0 | 53 | 43,5 | 54,5 | 41,5 | 51 | 39,5 | 53 | 38 | 35,5 | 22,5 | 37 | 21
| | | | | | | | | | | |
10,5 | 52,5 | 42 | 54 | 40 | 49 | 37 |