Grade 20G Seamless Steel Boiler Pipe e sebetsa ho li-tubes tse se nang moeli bakeng sa ho etsa boiler ea mouoane eo khatello ea eona e leng holimo kapa holimo le li-tubes tse se nang moroallo tse sebelisoang e le liphaephe.
20G seamless tšepe pipe ke boleng bo phahameng ba carbon structural steel, boiler material, carbon content of 0.17-0.24%, tensile strength of 410Mpa, chaie point 230-250Mpa. Ke tlhahiso ea rona e ka sehloohong ea tšepe, re ka fana ka pipe ea 20G Seamless ka boleng bo phahameng le theko ea tlhōlisano. Mona ho u tsebisa ka phala ea rona ea 20G e se nang seamless ea lik'hemik'hale le thepa ea mochini.
UT(Tlhahlobo ea Ultrasonic), AR(Ha E Cheseha feela), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V- Teko ea Notch Impact, Teko ea Mokha oa Boraro (joalo ka Tlhahlobo ea SGS), Ho phatloha ho Koatsoeng kapa ho Shot le ho Penta.Additional Condition GB5310 20GGB5310 20G phala ea tšepe ea boiler, phala ea tšepe ea 20G, phala ea 20G ea boiler
Tšebeliso ea pipe ea tšepe ea boiler:
GB5310 20G liphaephe tsa tšepe tse se nang metsi li sebelisoa haholo-holo bakeng sa likepe tsa khatello, mechine, lisebelisoa tsa liphaephe, indasteri ea oli le lik'hemik'hale.
Boemo ba GB 5310- 2008 bo sebetsa ho li-tubes tse se nang moeli bakeng sa ho etsa boiler ea mouoane eo khatello ea eona e leng holimo kapa holimo le li-tubes tse se nang seam tse sebelisoang e le liphaephe.
| Lintho tsa lik'hemik'hale | Lintlha |
| Khabone | 0.17-0.24 |
| Silicone | 0.17-0.37 |
| Manganese | 0.70-1.00 |
| Phosphorus(max) | 0.03 |
| Sebabole(boholo) | 0.03 |
| Chromium(max) | 0.25 |
| Molybdenum(max) | 0.15 |
| Cuprum(max) | 0.2 |
| Nickel(max) | 0.25 |
| Vanadium(max) | 0.08 |
| Thepa | Lintlha |
| Yield Strength (Mpa) | ≥415 |
| Tensile Strength (Mpa) | 240 |
| Elongation (%) | 22 |
| W.T.(S) | Mamello ea W.T. | |
| <3.5 | +15%(+0.48mm min) | |
| -10%(+0.32mm min) | ||
| 3.5-20 | +15%,-10% | |
| >20 | D <219 | ±10% |
| D≥219 | +12.5%,-10% | |