Khoom Piav Qhia
AISI 4130 75 k P + X Alloy Steel
Ntsib thawj zaug
AISI {4130 75 k, PSL 3, API 6A Cov Qauv, Chav Kawm Kub P + X, 2015
Tshuaj Muaj Tshuaj
| Teem nqi | C | Mn | Cr | Mo | Si | P | S | Ni | CU | V | H max. ppm |
| Min. | 0.280 | 0.400 | 0.800 | 0.150 | 0.150 | - | - | - | - | - | - |
| Max. | 0.330 | 0.600 | 1.100 | 0.250 | 0.350 | 0.025 | 0.025 | 0.350 | 0.350 | 0.300 | 2.000 |
Kev Kho Cua Sov
| Li qub | Sij hawm | Austenizing kub | Sij hawm | Tempering kub | Sij hawm |
| Min . 1620 ºF (899C) | Min . 60} feeb | 1575 - 1625 ºF ({{{0} ºC) | Min . 60} feeb | Min . 1238 ºF (670ºC) | Min . 60} feeb |
Roj lossis polymer lossis dej. Txog dej quenching, qhov kub ntawm cov dej yuav tsis pub tshaj 38ºC (100ºF) thaum pib quench. Rau da - Hom quenching, ntsuas dej yuav tsis pub dhau 49ºC (120ºF) txhua lub sijhawm thaum lub sijhawm Qog.
Cov Khoom Siv Neeg Kho Tshuab
Raws li ib astm E21-20 rau P + x qib
| Paib lub zog Yam tsawg kawg (0.2%) | Tensile muaj zog yam tsawg kawg nkaus | Elongation nyob rau hauv 2 "(yam tsawg kawg nkaus) | Txo Thaj Chaw (yam tsawg kawg nkaus) |
| 75 Ksi (517MPA) | 95 Ksi (655 MPA) | 18% | 35% |
Kev Soj Ntsuam Zoo
Qhov chaw kuaj qhov chaw & qtc
Charpy V - cov lus cuam tshuam ntawm 21ºC / -32ºC
Hardness raws li ib astm E10-18: Nyob rau saum npoo / 1 "hauv qab saum npoo
Volumetric NDE 100%-} ultrasonic
Yam tsawg kawg nkaus kev ua haujlwm kub ua haujlwm sib piv 4.0 txog 1
Grain loj yuav tsum yog #s lossis finer li pertm e 112 - 13
Kuaj xyuas deg
