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Temperature Grades of Metal Materials | ||||
Temperature Grade Code | API Code | Working Temperature Range | ||
T75 | 75 | -59~121℃(-75~250 ºF) | ||
T20 | 20 | -29~121℃(-20~250 ºF) | ||
T0 | 00 | -18~121℃(0~250 ºF) |
Temperature Grades of Non-metal Sealing Elements in contact with Well Liquids. | |||||||
Lower Limit (First Letter) | Upper Limit (Second Letter) | ||||||
A 15ºF(-26℃) | A 180ºF(82℃) | ||||||
B 0ºF(-17.8℃) | B 200ºF(93℃) | ||||||
C 10ºF(-12.2℃) | C 220ºF(104℃) | ||||||
D 20ºF(-6.7℃) | D 250ºF(121℃) | ||||||
E 30ºF(-1℃) | E 300ºF(149℃) | ||||||
X 40ºF(4℃) | X 180ºF(82℃) | ||||||
For example, AB represents a temperature grade ranging from -26℃ to 93℃. The specific temperature grade is marked with a code on a sealing member. | |||||||
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