ГОСТ 22790-89 Сборочные единицы и детали трубопроводов на Ру св. 10 до 100 МПа (св. 100 до 1000 кгс/кв.см). Общие технические условия
ПРИЛОЖЕНИЕ 1
Обязательное
РАБОЧЕЕ ДАВЛЕНИЕ ПРИ РАБОЧЕЙ ТЕМПЕРАТУРЕ СРЕДЫ
Таблица 4
Марка стали | Условное давление при 20°C, МПа | Рабочее давление, МПа, при рабочей температуре среды, °С | ||||||||
|
| 200 | 250 | 300 | 350 | 400 | 450 | 475 | 510 | 540 |
20, | 20 | 20,0 | 18,0 | 15,0 | 13,5 | 11,5 | 7,8 | - | - | - |
20ЮЧ
| 32
| 32,0
| 28,0
| 24,0
| 22,0
| 17,0
| 11,9
| -
| -
| -
|
| 25 | 25,0 | 24,0 | 23,0 | 21,0 | 18,0 | 15,0 | 12,5 | 9,0 | 6,4 |
15Х5М | 32
| 32,0
| 30,0
| 29,0
| 26,0
| 23,0
| 17,0
| 15,5
| 11,0
| 8,5
|
| 40
| 40,0
| 38,0
| 36,0
| 33,0
| 29,0
| 23,0
| 19,5
| 14,0
| 10,4
|
| 25 | 25,0 | 23,0 | 19,0 | 17,0 | 15,0 | 9,5 | - | - | - |
10Г2 | 40
| 40,0
| 35,0
| 30,0
| 26,0
| 23,0
| 15,0
| -
| -
| -
|
| 50
| 50,0
| 45,0
| 37,0
| 33,0
| 29,0
| 19,0
| -
| -
| -
|
14ХГС, | 25 | 25,0 | 23,0 | 19,0 | 17,0 | 15,0 | - | - | - | - |
15ГС,
| 40
| 40,0
| 35,0
| 30,0
| 26,0
| 23,0
| -
| -
| -
| -
|
09Г2С
| 50
| 50,0
| 45,0
| 37,0
| 33,0
| 29,0
| -
| -
| -
| -
|
| 63
| 63,0
| 54,0
| 48,0
| 40,0
| 37,0
| -
| -
| -
| -
|
30ХМА, | 25 | 25,0 | 23,0 | 22,0 | 21,0 | 20,0 | 18,0 | - | - | - |
18Х3МВ,
| 40
| 40,0
| 36,0
| 35,0
| 33,0
| 32,0
| 30,0
| 28,0
| -
| -
|
20Х2МА,
| 63
| 63,0
| 56,0
| 54,0
| 53,0
| 51,0
| 47,0
| 44,0
| -
| -
|
22Х3М
| 80
| 80,0
| 70,0
| 69,0
| 67,0
| 65,0
| 62,0
| 56,0
| -
| -
|
| 32 | 32,0 | 30,0 | 29,0 | 28,0 | 26,0 | 24,0 | 22,0 | 17,0 | - |
| 50
| 50,0
| 47,0
| 46,0
| 45,0
| 41,0
| 37,0
| 33,0
| 29,0
| -
|
| 80
| 80,0
| 74,0
| 72,0
| 70,0
| 65,0
| 60,0
| 52,0
| 45,0
| -
|
| 100
| 100,0
| 94,0
| 92,0
| 90,0
| 82,0
| 75,0
| 66,0
| 58,0
| -
|
08Х18Н10Т, | ||||||||||
08Х18Н12Т,
|
|
|
|
|
|
|
|
|
|
|
12Х18Н10Т,
| 20
| 20,0
| 19,0
| 18,0
| 16,5
| 15,0
| 14,0
| 13,0
| 11,5
| -
|
12Х18Н12Т,
| 32
| 32,0
| 29,0
| 28,0
| 26,0
| 24,0
| 23,0
| 22,0
| 17,0
| -
|
10X17H13M2T,
| 40
| 40,0
| 37,0
| 35,0
| 33,0
| 30,0
| 28,0
| 26,0
| 23,0
| -
|
10Х17Н13М3Т,
|
|
|
|
|
|
|
|
|
|
|
08Х17Н15М3Т,
|
|
|
|
|
|
|
|
|
|
|
03Х17Н14М3
|
|
|
|
|
|
|
|
|
|
|
Примечания:
1. Определение температуры среды - по ГОСТ 356.
2. При выборе материалов следует учитывать коррозионные свойства рабочих сред.