Mvua Ugumu wa Chuma cha pua
Aloi ya Joto la Juu
◆0Cr17Ni7Al ni chuma kinachofanya ugumu wa mvua na Al imeongezwa, inayotumika kama chemchemi, viosha, vijenzi vya kikokotoo, n.k.
◆0Cr15Ni7Mo2Al hutumika kwa kontena zenye nguvu nyingi, sehemu na sehemu za muundo zenye mahitaji fulani ya kustahimili kutu.
◆Utendaji wa 0Cr15Ni5Cu4Nb ni sawa na ule wa 0Cr17Ni4Cu4Nb, lakini ina utendakazi bora wa upande.
◆0Cr12Mn5Ni4Mo3Al (Gangyan 69111) ina kinamu bora kuliko 0Cr15Ni7Mo2Al.
◆0Cr17Ni4Cu4Nb Chuma cha kufanya ugumu cha unyevu na Cu kimeongezwa, kinachotumika sana katika vishimo, sehemu za miundo zenye nguvu ya juu zinazohitaji upinzani wa kutu kwa sehemu za turbine ya mvuke.
◆XM-25 inastahimili joto na joto la juu, inafaa kwa petroli, kemikali, anga, nishati ya nyuklia na tasnia nyingine.
Muundo wa kemikali
Daraja | C | Si | Mn | S | P | Cr | Ni | Mo | Cu | Nb | Al | nyingine |
hakuna kubwa kuliko | ||||||||||||
0Cr17Ni4Cu4Nb | 0.07 | 1 | 1 | 0.035 | 0.03 | 15.5 ~17.5 | 3~5 | - | 3~5 | 0.15 ~ 0.45 | - | - |
0Cr17Ni7Al | 0.09 | 1 | 1 | 0.035 | 0.03 | 16-18 | 6.5-7.5 | - | ≤0.5 | - | 0.75 ~1.5 | - |
0Cr15Ni7Mo2Al | 0.09 | 1 | 1 | 0.035 | 0.03 | 14-16 | 6.5-7.75 | 2~3 | - | - | 0.75 ~1.5 | - |
0Cr15Ni5Cu4Nb | 0.07 | 1 | 1 | 0.035 | 0.03 | 14 ~15.5 | 3.5-5.5 | - | 2.5-4.5 | 5*C%~0.45 | - | - |
0Cr12Mn5Ni4Mo3Al | 0.09 | 0.8 | 4.4-5.3 | 0.03 | 0.03 | 11-12 | 4~5 | 2.7-3.3 | - | - | 0.5~1 | - |
XM-25 | 0.05 | 1 | 1 | 0.03 | 0.03 | 14-16 | 5~7 | 0.5~1 | 1.25 ~1.75 | ≥8*C% | - | - |
Kiwango cha chini cha mali ya Aloi
Daraja | jimbo | nguvu ya mkazo RmN/m㎡ | Nguvu ya Mazao Rp0.2N/m㎡ | Elongation As% | HRC(HBS) |
0Cr17Ni7Al | suluhisho dhabiti 1000℃1100℃upoaji wa haraka | ≤1030 | ≤380 | ≥20 | ≤229 |
565 ℃ kuzeeka | ≥1140 | ≥960 | ≥5 | ≥363 | |
510 ℃ kuzeeka | ≥1230 | ≥1030 | ≥4 | ≥388 | |
0Cr17Ni4Cu4Nb | 480 ℃ kuzeeka | ≥1310 | ≥1180 | ≥10 | ≥40 |
550 ℃ kuzeeka | ≥1060 | ≥1000 | ≥12 | ≥35 | |
580 ℃ kuzeeka | ≥1000 | ≥865 | ≥13 | ≥31 | |
620 ℃ kuzeeka | ≥930 | ≥325 | ≥16 | ≥28 | |
0Cr15Ni5Cu4Nb | suluhisho thabiti | - | - | - | ≤380 |
565 ℃ kuzeeka | ≥1210 | ≥1100 | ≥7 | ≥375 | |
510 ℃ kuzeeka | ≥1320 | ≥1210 | ≥6 | ≥388 | |
0Cr12Mn5Ni4Mo3Al | 520 ℃ kuzeeka | ≥1520 | ≥1280 | ≥9 | ≥47 |
XM-25 | 560 ℃ kuzeeka | ≥1100 | ≥1000 | ≥10 | ≥45 |