API 5Lumuyoboro w'icyuma
Urwego rw'icyuma: L360 cyangwa X52 (PSL1)
Ibisabwa mu miti:
C: ≤0.28 (nta kashe) ≤0.26 (gusudira)
Mn: ≤1.40
P: ≤0.030
S: ≤0.030
Cu: 0,50 cyangwa munsi yayo
Ni: ≤0.50
Cr: ≤0.50
Mo: ≤0.15
* V + Nb + Ti: ≤0.15
* Ibirimo bya Manganese birashobora kwiyongeraho 0,05% kuri buri 0.01% kugabanya ibirimo karubone, kugeza kuri 1.65%
Ibikoresho bya mashini bisabwa:
Imbaraga zitanga umusaruro: 60360Mpa
Imbaraga zingana: 60460Mpa
Imbaraga zingutu zicyuma gisudira: 60460Mpa
Kurambura: ≥1940 * AXC0.2 / 4600.9, aho AXC ni agace kambukiranya icyitegererezo cya tensile
Kwihanganira diameter yo hanze yumuyoboro wibyuma:
| Diameter yo hanze D mm | Kurangiza hanze ya diameter gutandukana mm | |
| Umuyoboro w'icyuma | Umuyoboro w'icyuma | |
| <60.3 | -0.8, +0.4 | |
| 60.3 D cyangwa munsi ya 168.3 cyangwa munsi yayo | -0.4, +1.6 | |
| 168.3 <D≤610 | ± 0.005D, ariko ntarengwa ± 1.6 | |
| 610 <D≤1422 | + / - 2.0 | + / - 1.6 |
| > 1422 | Ku bwumvikane | |
Urukuta ubunini kwihanganira of ibyuma umuyoboro:
| Uburebure bw'urukuta t mm | Ubworoherane mm |
| Umuyoboro w'icyuma | |
| 4.0 cyangwa munsi yayo | +0.6, -0.5 |
| 4 <t <25 | + 0.150t, -0.125t |
| 25 cyangwa irenga | +3.7 cyangwa + 0.1t, iyaba nini -3.0 cyangwa -0.1t, fata nini |
| Umuyoboro | |
| 5.0 cyangwa munsi yayo | + / - 0.5 | |
| 5.0 | <t <15 | Byongeye cyangwa gukuramo 0.1 t |
| 15 | cyangwa byinshi | + / - 1.5 |
Icyuma amanota: L360N or X52N(PSL2)
Imiti ibihimbano ibisabwa:
C: ≤0.24
Si: ≤0.45
Mn: ≤1.40
P: ≤0.025
S: ≤0.015
V: ≤0.10
Nb:≤0.05
Ti: ≤0.04
Cu: ≤0.50
Ni: ≤0.30
Cr: ≤0.30
Mo: ≤0.15
V + Nb + Ti: ≤0.15
* Ibirimo bya Manganese birashobora kwiyongeraho 0,05% kuri buri 0.01% kugabanya ibirimo karubone, kugeza kuri 1.65%.
* Nta kongera nkana boron byemewe, bisigaye B≤0.001%
Carbone bihwanye:
CEP cm: ≤0.25
CEIIW: ≤0.43
* Koresha CE mugihe karubone irenze 0,12%, kandi ukoreshe CE IIW mugiheP cm ya karubone iri munsi cyangwa ingana na 0,12%.
CEP cm = C + Si / 30 + Mn / 20 + Cu / 20 + Ni / 60 + Cr / 20 + Mo / 15 + V / 10 + 5B
Niba ibisubizo byo gusesengura gushonga kwa B biri munsi ya 0.0005%, ubwo rero nta mpamvu yo gushyira isesengura ryibintu B mu isesengura ryibicuruzwa, kandi ibirimo B bishobora gufatwa nka zeru muri karubone ihwanye na CEP cm.
CEIIW = C + Mn / 6 (C + Mo + V) / 5 + (Ni + Cu) / 15
Umukanishi imitungo ibisabwa:
Imbaraga zitanga umusaruro: 360-530Mpa
Imbaraga zingana: 460-760Mpa
Ikigereranyo cy'umusaruro: ≤0.93 (ikoreshwa gusa kuri D> 323.9mm y'icyuma)
Imbaraga zingutu zicyuma gisudira: 60460Mpa
Kurambura ntarengwa: = 1940 * AXC0.2 / 4600.9, aho AXC nigice cyambukiranya igice cyurugero rwa tensile.
Ikizamini cya CVN ya tube
Ubushyuhe bwo gupima 0 。C
| Kugaragaza diameter yo hanze ya D mm | Ingano yuzuye CVNIngufu zikoreshwaKVJ |
| 508 cyangwa munsi yayo | 27 |
| > 508 kugeza 762 | 27 |
| > 762 kugeza 914 | 40 |
| > 914 kugeza 1219 | 40 |
| > 1219 kugeza 1422 | 40 |
| > 1422 kugeza 2134 | 40 |
Hanze diameter kwihanganira of ibyuma umuyoboro:
| Diameter yo hanze D mm | Kurangiza gutandukana kwa diameter | |
| Umuyoboro w'icyuma | Umuyoboro w'icyuma | |
| <60.3 | -0.4, +0.8 | |
| 60.3 D cyangwa munsi ya 168.3 cyangwa munsi yayo | -0.4, +1.6 | |
| 168.3 <D = 610 | ± 0.005D, ariko ntarengwa ± 1.6 | |
| 610 <D = 1422 | + / - 2.0 | + / - 1.6 |
| > 1422 | Ku bwumvikane | |
Urukuta ubunini kwihanganira of ibyuma umuyoboro:
| Uburebure bw'urukuta t mm | Ubworoherane |
| Umuyoboro w'icyuma | |
| 4.0 cyangwa munsi yayo | +0.6, -0.5 |
| 4 <t <25 | + 0.150t, -0.125t |
| 25 cyangwa irenga | +3.7 cyangwa + 0.1t, iyo ari nini -3.0 cyangwa -0.1t, fata binini |
| Umuyoboro wo gusudira | |
| 5.0 cyangwa munsi yayo | + / - 0.5 |
| 5.0 <t <15 | Byongeye cyangwa gukuramo 0.1 t |
| 15 cyangwa irenga | + / - 1.5 |
Igihe cyo kohereza: Nzeri-26-2023
