Chemical Composition Zvinodiwa,%,
C: ≤0.30
Mn: 0.29-1.06
P: ≤0.025
S: ≤0.025
Si: ≥0.10
Ni: ≤0.40
Cr: ≤0.30
Cu: ≤0.40
V: ≤0.08
Nb: ≤0.02
Mo: ≤0.12
*Manganese yemukati inogona kuwedzerwa ne0.05% yega yega 0.01% inodzikira mucarbon content kusvika 1.35%.
**Niobium yemukati, yakavakirwa pachibvumirano, inogona kuwedzerwa kusvika ku0.05% yekuongorora kunyungudika uye 0.06% yekuongorora kwechigadzirwa.
Zvinodiwa pakurapa kupisa:
1. Gadzirisa pamusoro pe815°C.
2. Normalize pamusoro 815 ° C, ipapo hasha.
3. Kupisa kwakaumbwa pakati pe845 ne945 ° C, ndokuzotonhodzwa muchoto pamusoro pe845 ° C (yemachubhu asina musono chete).
4. Yakagadzirwa uye yobva yapiswa sezviri pamusoro pePoint 3.
5. Yakaomeswa uye yobva yadziridzwa kupfuura 815°C.
Mechanical performance zvinodiwa:
Goho simba: ≥240Mpa
Kusimba kwesimba: ≥415Mpa
Elongation:
| Muenzaniso | A333 GR.6 | |
| Vertical | Transverse | |
| Hukoshi hushoma hwedenderedzwa renguva dzosemuenzaniso kana chiyero chidiki chine chinhambwe chekumaka che 4D | 22 | 12 |
| Rectangular specimens ine madziro makubvu e5/16 in. (7.94 mm) uye yakakura, uye ese madiki-saizi emuenzaniso akaedzwa mufull cross-section at 2 in. (50 mm)markings | 30 | 16.5 |
| Rectangular specimens kusvika 5/16 in. (7.94 mm) mudhuri ukobvu pa 2 in. (50 mm) chinhambwe chinomaka (specimen wide 1/2 in., 12.7 mm) | A | A |
A Bvumira kuderedzwa kwe1.5% mukurebesa kurebesa uye kuderedzwa kwe1.0% mukurebesa kwakachinjika kune yega yega 1/32 in. (0.79 mm) yemadziro ukobvu kusvika pa5/16 mukati (7.94 mm) kubva kune elongation yakanyorwa pamusoro.
Impact Test
Kuedza Tembiricha: -45°C
Kana madiki Charpy maitiro emuenzaniso akashandiswa uye specimen notch hupamhi iri pasi pe80% yeukobvu chaihwo hwechinhu, tembiricha yekuyedza yakaderera inofanirwa kushandiswa sekuverengerwa muTafura 6 yeASTM A333 yakatarwa.
| Muenzaniso, mm | Minimum avhareji yemasamples matatu | Minimum value of one of mienzaniso mitatu |
| 10 × 10 | 18 | 14 |
| 10 × 7.5 | 14 | 11 |
| 10 × 6.67 | 12 | 9 |
| 10 × 5 | 9 | 7 |
| 10 × 3.33 | 7 | 4 |
| 10 × 2.5 | 5 | 4 |
Mapaipi esimbi anofanirwa kuve ne hydrostatically kana kuti isiri-inoparadza (eddy current kana ultrasonic) pabazi-ne-bazi.
Kushivirira kwekunze kwedhayamita yepombi yesimbi:
| Kunze Diameter, mm | kushivirira kwakanaka, mm | kushivirira kwakashata, mm |
| 10.3-48.3 | 0.4 | 0.4 |
| 48.3＜D≤114.3 | 0.8 | 0.8 |
| 114.3＜D≤219.10 | 1.6 | 0.8 |
| 219.1＜D≤457.2 | 2.4 | 0.8 |
| 457.2＜D≤660 | 3.2 | 0.8 |
| 660＜D≤864 | 4.0 | 0.8 |
| 864＜D≤1219 | 4.8 | 0.8 |
Wall ukobvu kushivirira kwesimbi pombi:
Chero poindi haifanire kunge iri pasi pe12.5% yezita remadziro ukobvu.Kana iyo shoma yemadziro ukobvu yakarairwa, hapana poindi ichave yakaderera pane inodiwa madziro ukobvu.
Nguva yekutumira: Feb-22-2024