API 5Lọkpọkọ ọkpọkọ ígwè
ọkwa igwe: L360 ma ọ bụ X52 (PSL1)
Ihe mejupụtara kemịkalụ chọrọ:
C: ≤0.28(enweghị nkebi) ≤0.26(welded)
Nna: ≤1.40
P: ≤0.030
S: ≤0.030
Cu: 0.50 ma ọ bụ obere
Nkeji: ≤0.50
Kr: ≤0.50
Mo: ≤0.15
*V+Nb+Ti: ≤0.15
Enwere ike ịbawanye ọdịnaya manganese site na 0.05% maka mbelata 0.01% ọ bụla na ọdịnaya carbon, ruo kacha nke 1.65%
Ihe akụrụngwa chọrọ:
Ike mpụta: ≥360Mpa
Ike nkwụsị: ≥460Mpa
Weld tensile ike nke welded ígwè anwụrụ: ≥460Mpa
Elongation: ≥1940* AXC0.2/4600.9 , ebe AXC bụ akụkụ cross-section nke tensile sample
Nkwadebe nke dayameta dị n'èzí nke ọkpọkọ ígwè:
| Dayameta nke mpụta D mm | Akwụsị n'èzí dayameta nkewa mm | |
| Igwe anaghị agba nchara | Ọkpụkpọ ígwè welded | |
| < 60.3 | -0.8, +0.4 | |
| 60.3 D ma ọ bụ obere 168.3 ma ọ bụ obere | -0.4, +1.6 | |
| 168.3 <D≤610 | ± 0.005D, mana kacha ± 1.6 | |
| 610 <D≤1422 | +/- 2.0 | +/- 1.6 |
| > 1422 | Site na nkwekọrịta | |
Mgbidi ọkpụrụkpụ ndidi of ígwè ọkpọkọ:
| Mgbidi ọkpụrụkpụ t mm | Ntachi obi mm |
| Igwe anaghị agba nchara | |
| 4.0 ma ọ bụ obere | + 0.6, -0.5 |
| 4 <t <25 | +0.150t, -0.125t |
| 25 ma ọ bụ karịa | +3.7 ma ọ bụ +0.1t, nke ọ bụla buru ibu -3.0 ma ọ bụ -0.1t, buru ibu karịa. |
| welded tube | |
| 5.0 ma ọ bụ obere | +/- 0.5 | |
| 5.0 | <t <15 | gbakwunyere ma ọ bụ mwepu 0.1 t |
| 15 | ma ọ bụ karịa | +/- 1.5 |
Igwe igwe ọkwa: L360N or X52N(PSL2)
Chemical mejupụtara chọrọ:
C: ≤0.24
Ebe: ≤0.45
Nna: ≤1.40
P: ≤0.025
S: ≤0.015
V: ≤0.10
Nb:≤0.05
Nke: ≤0.04
Ihe: ≤0.50
Nkeji: ≤0.30
Kr: ≤0.30
Mo: ≤0.15
V+Nb+Ti: ≤0.15
* Enwere ike ịbawanye ọdịnaya manganese site na 0.05% maka mbelata 0.01% ọ bụla na ọdịnaya carbon, ruo kacha nke 1.65%.
* Ọnweghị ụma gbakwụnye boron anabataghị, nke fọdụrụ B≤0.001%
Carbon nhata:
CEP cm: ≤0.25
CEIIW: ≤0.43
* Jiri CE mgbe ọdịnaya carbon karịrị 0.12%, ma jiri CE IIW mgbe Pcm ọdịnaya carbon na-erughị ma ọ bụ hà nhata 0.12%.
CEP cm = C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B
Ọ bụrụ na nsonaazụ nyocha nke B na-erughị 0.0005%, ọ dịghị mkpa ịgụnye nyocha nke element B na nyocha ngwaahịa, na ọdịnaya B nwere ike na-emeso ya dị ka efu na carbon kwekọrọ CEP cm ngụkọta oge.
CEIIW =C+Mn/6 (C+Mo+V)/5+(Ni+Cu)/ 15
Mechanical Njirimara chọrọ:
Ike mpụta: 360-530Mpa
Ike nkwụsị: 460-760Mpa
Ọnụọgụ mkpụrụ: ≤0.93 (naanị ọdabara na D> 323.9mm ígwè ọkpọkọ)
Weld tensile ike nke welded ígwè anwụrụ: ≥460Mpa
Opekempe elongation: = 1940 * AXC0.2 / 4600.9 , ebe AXC bụ mpaghara obe nke ihe nlere anya.
CVN mmetụta ule nke tube
Nwalee okpomọkụ 0.C
| Ezipụta dayameta dị n'èzí nke D mm | CVN zuru okeIke absorptionKVJ |
| 508 ma ọ bụ obere | 27 |
| > 508 ruo 762 | 27 |
| > 762 ruo 914 | 40 |
| > 914 ruo 1219 | 40 |
| > 1219 ruo 1422 | 40 |
| > 1422 ruo 2134 | 40 |
Mpụta dayameta ndidi of ígwè ọkpọkọ:
| Dayameta nke mpụta D mm | Nkwụsị n'èzí dayameta | |
| Igwe anaghị agba nchara | Ọkpụkpọ ígwè welded | |
| < 60.3 | -0.4, +0.8 | |
| 60.3 D ma ọ bụ obere 168.3 ma ọ bụ obere | -0.4, +1.6 | |
| 168.3 <D=610 | ± 0.005D, mana kacha ± 1.6 | |
| 610 <D=1422 | +/- 2.0 | +/- 1.6 |
| > 1422 | Site na nkwekọrịta | |
Mgbidi ọkpụrụkpụ ndidi of ígwè ọkpọkọ:
| Mgbidi ọkpụrụkpụ t mm | Nkwenye |
| Igwe anaghị agba nchara | |
| 4.0 ma ọ bụ obere | + 0.6, -0.5 |
| 4 <t <25 | +0.150t, -0.125t |
| 25 ma ọ bụ karịa | +3.7 ma ọ bụ +0.1t, nke ọ bụla ka ukwuu -3.0 ma ọ bụ -0.1t, buru ibu |
| Ọkụ welded | |
| 5.0 ma ọ bụ obere | +/- 0.5 |
| 5.0 <t <15 | gbakwunyere ma ọ bụ mwepu 0.1 t |
| 15 ma ọ bụ karịa | +/- 1.5 |
Oge nzipu: Sep-26-2023
