Recommendable Material For Your Working Condition
| Service | Working Condition Temperature ℉(℃) | Application, General | Recommendable Material | |
|---|---|---|---|---|
| STUD BOLT(ASTM) | HEAVY HEX NUT(ASTM) | |||
| High-pressure and High-temperature | 32°F∼1148。F(0。C∼620。C) | Synthetic Ammonium, Oil Refining Industries, and other similar uses. | A193 Gr.B5 | A194 Gr. 3 |
| 32。F∼755。F(0。C∼400。C) | B6 | 6 | ||
| 575。F∼755。F(300。C∼400。C) | B7 | 2H | ||
| 755。F∼1022。F(400。C∼550。C) | B16 | 4 or 7 | ||
| ∼1385。F( ∼750。C) | Where needed high strength and high temperature service. | A453 660 | A453 660 | |
| ∼1385。F( ∼750。C) | 651 | 651 | ||
| High-corrosive and High-temperature | 1022。F∼1208。F(550。C∼650。C) | Chemical Industries, General | A193 B8 | A194 8 |
| 1022。F∼1208。F(550。C∼650。C) | Atomic Power Equipment, where needed grain boundary anticorrosiveness and heat resistivity | B8C | 8C | |
| 1208。F∼1390。F(650。C∼750。C) | Where needed anticorrosiveness and heart resistivily | B8M | 8M | |
| 1208。F∼1390。(650。C∼750。C) | Where needed grain boundary anticorrosiveness | B8T | 8T | |
| High-pressure and Low-temperature | -148。F∼-58。F(-100。C∼-50。C) | LPG Industry, and other similar uses. | A320 L7 | 4or7 |
| -148。F∼-58。F(-100。C∼-50。C) | L7A | 4 | ||
| -148。F∼-58。F(-100。C∼-50。C) | L7B | 4or7 | ||
| -148。F∼-58。F(-100。C∼-50。C) | L7C | 4or7 | ||
| -148。F∼-58。F(-100。C∼-50。C) | L43 | 7 | ||
| Low-temperature | -328。∼-148。F(-200。C∼-100。C) | Helium Extrusion, NG Lique-faction Industries, and other similar uses. | A320 B8 | 8 |
| -328。∼-148。F(-200。C∼-100。C) | B8C | 8C | ||
| -328。∼-148。F(-200。C∼-100。C) | B8M | 8M | ||
| -328。∼-148。F(-200。C∼-100。C) | B8T | 8T | ||
| STUD BOLT & NUT SELECTION FOR PIPING MATERIAL | TEMPERATURE RANGE | MATERIA BOLT/NUT | ||
| -100。C∼-200。C | ASTM A320 B8/ASTM A194 GR 8 | |||
| -46。C∼-100。C | ASTM A320 L7/ASTM A 194 GR 4 | |||
| 0。C∼-45。C | ASTM A320 L7/ASTM A 194 GR 4, A193 B7/ASTM A194 GR 2H | |||
| 0。C∼300。C | ASTMA307 | |||
| 300。C∼400。C | ASTM A193 B7/ASTM A194 GR 2H | |||
| 400。C∼550。C | ASTMA193 B16/ASTM A194 GR 4 | |||
| 550。C∼650。C | ASTM A193 B8/ASTM A194 GR 8 | |||
| 650。C∼750。C | ASTM A193 B8M/ASTM A194 GR 8M | |||
| ABOVE 750。C | ASTMA453 GR 550/ASTM A453 GR660 | |||
| BELOW 850。C | HASTALLOY B &C | |||
| 850。C∼1,000。C | CHROMIUM ALLOY | |||