VALQUA No. | Application | Cross Section |
550 | Gasket for piping flange, pressure vessel, valve bonnet, etc. | ![]() |
Dimensional standards |
Dimensions specified in JPI, ASME, API, MSS and the like for ring joint flanges are our standard. |
Name | Max. Hardness(HB) |
Low carbon steel | 120 |
Pure iron | 90 |
Copper | 60 |
SUS304 | 160 |
SUS304L | 150 |
SUS310S | 160 |
SUS316 | 160 |
SUS316L | 150 |
SUS321 | 160 |
SUS347 | 160 |
SUS430 | 170 |
5Cr-0.5Mo steel | 130 |
Monel metal | 140 |
Titanium | 140 |
Aluminum | 40 |
Nickel | 120 |