API 5Lpombi yesimbi yepombi
Giredhi resimbi: L360 kana X52 (PSL1)
Zvinodiwa pakuumbwa kwemakemikari:
C: ≤0.28 (isina musono) ≤0.26 (yakasungirirwa)
Mn: ≤1.40
P: ≤0.030
S: ≤0.030
Cu: 0.50 kana pasi
Nhamba: ≤0.50
Cr: ≤0.50
Mwedzi: ≤0.15
*V+Nb+Ti: ≤0.15
* Kuwanda kweManganese kunogona kuwedzerwa ne0.05% pakuderedza kwega kwega kwekabhoni ne0.01%, kusvika pa1.65%
Zvinodiwa zvehunhu hwemakanika:
Simba rekupa: ≥360Mpa
Simba rekusimba: ≥460Mpa
Simba rekusimba resimbi rakasungirirwa: ≥460Mpa
Kureba: ≥1940* AXC0.2/4600.9, apo AXC ndiyo nzvimbo inochinjika yemuenzaniso wekudhonza
Kushivirira kwepaipi yesimbi nedhayamita yekunze:
| Dhayamita yekunze D mm | Kuguma kwekunze kwedhayamita kutsauka mm | |
| Pombi yesimbi isina musono | Pombi yesimbi yakasungirirwa | |
| < 60.3 | -0.8, +0.4 | |
| 60.3 D kana pasi 168.3 kana pasi | -0.4, +1.6 | |
| 168.3 < D≤610 | ±0.005D, asi yakanyanya ±1.6 | |
| 610 < D≤1422 | + / - 2.0 | + / - 1.6 |
| > 1422 | Nechibvumirano | |
Rusvingo ukobvu kushivirira of simbi pombi:
| Ukobvu hwemadziro t mm | Kushivirira mm |
| Pombi yesimbi isina musono | |
| 4.0 kana pasi | +0.6, -0.5 |
| 4 < t < 25 | +0.150t, -0.125t |
| 25 kana kupfuura | +3.7 kana +0.1t, chero ipi zvayo yakakura -3.0 kana -0.1t, tora yakakura |
| Chubhu yakasungirirwa | |
| 5.0 kana pasi | + / - 0.5 | |
| 5.0 | < t < 15 | Kuwedzera kana kubvisa 0.1 t |
| 15 | kana kupfuura | + / - 1.5 |
Simbi giredhi: L360N or X52N(PSL2)
Kemikari kuumbwa zvinodiwa:
C: ≤0.24
Nhamba: ≤0.45
Mn: ≤1.40
P: ≤0.025
S: ≤0.015
V: ≤0.10
Nhamba:≤0.05
Nhamba: ≤0.04
Kureba: ≤0.50
Nhamba: ≤0.30
Cr: ≤0.30
Mwedzi: ≤0.15
V+Nb+Ti: ≤0.15
* Kuwanda kweManganese kunogona kuwedzerwa ne0.05% pakuderedza kwega kwega kwe0.01% kwehuwandu hwekabhoni, kusvika pa1.65%.
* Hapana kuwedzera boron nemaune kunobvumidzwa, zvinosara B≤0.001%
Kabhoni yakaenzana:
CEP cm : ≤0.25
CEIIW: ≤0.43
* Shandisa CE kana kabhoni iri pamusoro pe0.12%, uye shandisa CE IIW kana P cm iyo kabhoni iri pasi kana kuti yakaenzana ne0.12%.
CEP cm = C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B
Kana mhedzisiro yekuyerwa kwekunyungudutsa kweB iri pasi pe0.0005%, saka hapana chikonzero chekuisa ongororo yechinhu B muyerwa yechigadzirwa, uye huwandu hweB hunogona kutorwa se zero mukuverenga kweCEP cm yakaenzana necarbon.
CEIIW =C+Mn/6 (C+Mo+V)/5+(Ni+Cu)/ 15
Michina zvivakwa zvinodiwa:
Simba rekupa: 360-530Mpa
Simba rekusimba: 460-760Mpa
Chiyero chegoho: ≤0.93 (inoshanda chete papombi yesimbi yeD > 323.9mm)
Simba rekusimba resimbi rakasungirirwa: ≥460Mpa
Kureba kudiki: = 1940* AXC0.2/4600.9, apo AXC iri nzvimbo inochinjika yemuenzaniso wekudhonza.
Kuedzwa kweCVN kwechubhu
Tembiricha yekuyedza 0 。C
| Taura dhayamita yekunze yeD mm | CVN yakazaraSimba rakatorwaKVJ |
| 508 kana pasi | 27 |
| > 508 kusvika 762 | 27 |
| > 762 kusvika 914 | 40 |
| > 914 kusvika 1219 | 40 |
| > 1219 kusvika 1422 | 40 |
| > 1422 kusvika 2134 | 40 |
Kunze dhayamita kushivirira of simbi pombi:
| Dhayamita yekunze D mm | Kupera kwekunze kwedhayamita | |
| Pombi yesimbi isina musono | Pombi yesimbi yakasungirirwa | |
| < 60.3 | -0.4, +0.8 | |
| 60.3 D kana pasi 168.3 kana pasi | -0.4, +1.6 | |
| 168.3 < D=610 | ±0.005D, asi yakanyanya ±1.6 | |
| 610 < D=1422 | + / - 2.0 | + / - 1.6 |
| > 1422 | Nechibvumirano | |
Rusvingo ukobvu kushivirira of simbi pombi:
| Ukobvu hwemadziro t mm | Kushivirira |
| Pombi yesimbi isina musono | |
| 4.0 kana pasi | +0.6, -0.5 |
| 4 < t < 25 | +0.150t, -0.125t |
| 25 kana kupfuura | +3.7 kana +0.1t, chero ipi zvayo yakakura -3.0 kana -0.1t, tora yakakura |
| Pombi yakasungirirwa | |
| 5.0 kana pasi | + / - 0.5 |
| 5.0 < t < 15 | Kuwedzera kana kubvisa 0.1 t |
| 15 kana kupfuura | + / - 1.5 |
Nguva yekutumira: Gunyana-26-2023
