API 5Lpaipa maitai paipa
Te karaehe maitai: L360, X52 rānei (PSL1)
Ngā whakaritenga hanganga matū:
C: ≤0.28 (kore hononga) ≤0.26 (whakarewahia)
Mn: ≤1.40
P: ≤0.030
S: ≤0.030
Cu: 0.50, iti iho rānei
Ni: ≤0.50
Kr: ≤0.50
Mo: ≤0.15
*V+Nb+Ti: ≤0.15
* Ka taea te whakanui ake i te nui o te konupūmā mā te 0.05% mō ia whakaitinga 0.01% i te nui o te waro, tae atu ki te 1.65% te mōrahi
Ngā whakaritenga mō ngā āhuatanga miihini:
Kaha tuku: ≥360Mpa
Kaha kume: ≥460Mpa
Te kaha kume whakarewa o te paipa maitai whakarewa: ≥460Mpa
Te Roroa: ≥1940* AXC0.2/4600.9 , ko AXC te horahanga whakawhiti-wāhanga o te tauira kume
Te ātete ki te diameter o waho o te paipa maitai:
| Diameter o waho D mm | Te rerekētanga o te diameter o waho o te mutunga mm | |
| Paipa maitai kore-tuitui | Paipa maitai whakarewa | |
| < 60.3 | -0.8, +0.4 | |
| 60.3 D, iti iho rānei 168.3, iti iho rānei | -0.4, +1.6 | |
| 168.3 < D≤610 | ±0.005D, engari ko te mōrahi ±1.6 | |
| 610 < D≤1422 | + / - 2.0 | + / - 1.6 |
| > 1422 | Mā te whakaaetanga | |
Pakitara matotoru manawanui of maitai paipa:
| Matotoru pakitara t mm | Manawanui mm |
| Paipa maitai kore-tuitui | |
| 4.0, iti iho rānei | +0.6, -0.5 |
| 4 < t < 25 | +0.150t, -0.125t |
| 25, neke atu rānei | +3.7, +0.1t rānei, ko te mea nui ake -3.0, -0.1t rānei, tangohia te mea nui ake |
| Ngongo whakarewa | |
| 5.0, iti iho rānei | + / - 0.5 | |
| 5.0 | < t < 15 | Tāpiri atu, tango atu rānei i te 0.1 t |
| 15 | neke atu rānei | + / - 1.5 |
Rino tohu: L360N or X52N(PSL2)
Matū hanganga ngā whakaritenga:
C: ≤0.24
Si: ≤0.45
Mn: ≤1.40
P: ≤0.025
S: ≤0.015
V: ≤0.10
Nama:≤0.05
Ti: ≤0.04
Cu: ≤0.50
Ni: ≤0.30
Kr: ≤0.30
Mo: ≤0.15
V+Nb+Ti: ≤0.15
* Ka taea te whakanui ake i te nui o te konupūmā mā te 0.05% mō ia whakaitinga 0.01% i te nui o te waro, tae atu ki te 1.65% te mōrahi.
* Kāore e whakaaetia te tāpiri ā-taupānga o te boron, ko te toenga B≤0.001%
Waro ōrite:
CEP cm: ≤0.25
CEIIW: ≤0.43
* Whakamahia te CE ina nui ake te ihirangi waro i te 0.12%, ā, whakamahia te CE IIW ina iti iho te ihirangi waro i te 0.12%, i te P cm rānei.
CEP cm = C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B
Mena he iti iho i te 0.0005% te hua o te tātari whakarewa o B, kāore he take e whakaurua ai te tātari o te huānga B ki te tātari hua, ā, ka taea te kī ko te ihirangi B he kore i roto i te tataunga waro ōrite CEP cm.
CEIIW =C+Mn/6 (C+Mo+V)/5+(Ni+Cu)/ 15
Mīhini ngā āhuatanga ngā whakaritenga:
Kaha tuku: 360-530Mpa
Kaha kume: 460-760Mpa
Te ōwehenga hua: ≤0.93 (e tika ana mō te paipa maitai D > 323.9mm anake)
Te kaha kume whakarewa o te paipa maitai whakarewa: ≥460Mpa
Te roanga iti rawa: = 1940* AXC0.2/4600.9 , ko AXC te horahanga whakawhiti-wāhanga o te tauira kume.
Whakamātautau pānga CVN o te ngongo
Pāmahana whakamātautau 0 。C
| Tauwhāitihia te diameter o waho o D mm | CVN rahi tonuPūngao mimitiKVJ |
| 508, iti iho rānei | 27 |
| > 508 ki te 762 | 27 |
| > 762 ki te 914 | 40 |
| > 914 ki te 1219 | 40 |
| > 1219 ki te 1422 | 40 |
| > 1422 ki te 2134 | 40 |
Waho whānui manawanui of maitai paipa:
| Diameter o waho D mm | Te rerekētanga o te diameter o waho o te mutunga | |
| Paipa maitai kore-tuitui | Paipa maitai whakarewa | |
| < 60.3 | -0.4, +0.8 | |
| 60.3 D, iti iho rānei 168.3, iti iho rānei | -0.4, +1.6 | |
| 168.3 < D=610 | ±0.005D, engari ko te mōrahi ±1.6 | |
| 610 < D=1422 | + / - 2.0 | + / - 1.6 |
| > 1422 | Mā te whakaaetanga | |
Pakitara matotoru manawanui of maitai paipa:
| Matotoru pakitara t mm | Ngā Manawanui |
| Paipa maitai kore-tuitui | |
| 4.0, iti iho rānei | +0.6, -0.5 |
| 4 < t < 25 | +0.150t, -0.125t |
| 25, neke atu rānei | +3.7, +0.1t rānei, ko tēhea te mea nui ake -3.0, -0.1t rānei, tangohia he nui ake |
| Paipa whakarewa | |
| 5.0, iti iho rānei | + / - 0.5 |
| 5.0 < t < 15 | Tāpiri atu, tango atu rānei i te 0.1 t |
| 15, neke atu rānei | + / - 1.5 |
Wā tuku: Hepetema-26-2023
