Ipayipi Lokubilisa Lensimbi Elingenamthungo Lebanga lama-20G lisebenza kumashubhu angenamthungo ekwenzeni ibhayela yesitimu ukucindezela kwawo kuphezulu noma ngaphezulu namashubhu angenamthungo asetshenziswa njengamapayipi.
I-20G ipayipi yensimbi engenamthungo iyinsimbi yekhwalithi ephezulu ye-carbon structural, i-boiler material, okuqukethwe kwekhabhoni ka-0.17-0.24%, amandla aqinile we-410Mpa, iphuzu lesivuno 230-250Mpa. Ingabe ukukhiqizwa kwethu okuyinhloko kwensimbi, singahlinzeka ngepayipi le-20G elingenasici ngekhwalithi ephezulu kanye nenani lokuncintisana. Lapha ukuze sikwethulele kumapayipi ethu angenamthungo we-20G izakhiwo zamakhemikhali eziyisisekelo kanye nezakhiwo zemishini.
I-UT(Ukuhlolwa kwe-Ultrasonic), AR(Ishisiwe kuphela), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V- Ukuhlolwa Kwe-Notch Impact, Ukuhlolwa Komuntu Osesithathu (okufana Nokuhlolwa kwe-SGS), Ukuqhuma Okunamathiselwe noma Okudutshulwa Nokupenda.Isimo Esengeziwe GB5310 20GI-GB5310 20G ipayipi lensimbi elibhayela, ipayipi lensimbi engu-20G, ipayipi elibiyela elingu-20G
Ipayipi lensimbi ye-boiler Isicelo:
I-GB5310 20G amapayipi ensimbi angenamthungo asetshenziselwa ikakhulukazi imikhumbi yokucindezela, imishini, ukufakwa kwamapayipi, imboni kawoyela kanye namakhemikhali.
I-GB 5310- 2008 indinganiso iyasebenza kumashubhu angenamthungo okwenza ibhayela yesitimu ukucindezela kwawo kuphezulu noma ngaphezulu namashubhu angenamthungo asetshenziswa njengamapayipi.
| Izakhi zamakhemikhali | Idatha |
| Ikhabhoni | 0.17-0.24 |
| I-silicon | 0.17-0.37 |
| IManganese | 0.70-1.00 |
| I-Phosphorus(ubuningi) | 0.03 |
| Isibabule(ubukhulu) | 0.03 |
| I-Chromium(ubukhulu) | 0.25 |
| I-Molybdenum(ubuningi) | 0.15 |
| I-Cuprum(ubuningi) | 0.2 |
| I-Nickel(ubuningi) | 0.25 |
| I-Vanadium(ubukhulu) | 0.08 |
| Izakhiwo | Idatha |
| Isivuno Amandla (Mpa) | ≥415 |
| Amandla Okuqina (Mpa) | 240 |
| Ubude (%) | 22 |
| I-W.T.(Izi-S) | Ukubekezela kwe-W.T. | |
| <3.5 | +15%(+0.48mm iminithi) | |
| -10%(+0.32mm iminithi) | ||
| 3.5-20 | +15%,-10% | |
| >20 | D <219 | ±10% |
| D≥219 | +12.5%,-10% | |